Success stories

Όλα τα πανεπιστήμια ανά τον κόσμο, όπου σπούδασαν ή σπουδάζουν οι μαθητές μας και οι ιστορίες επιτυχίας τους! (Έαν μπαίνετε από κινητό και δεν βλέπετε τη λίστα με τα success stories μας, πηγαίνετε κάτω κάτω και κάνετε switch to desktop version)!!!!!

Vasilis Karkantzos (MBA Harvard Business School, McKinsey&Company, Business Analyst / Civil Eng. NTUA / Athens College (HAEF) / GMAT 760, TOEFL 117, GRE 170/161)

Success at last! Admitted into MBA Class of 2018 (September 2016 intake) – HARVARD Business School!

“During my preparation for an MBA in the USA, I worked closely with both Dia Gerontoudi and Thomas Kalandranis. For her part, Dia was much more than a great teacher. She was a real mentor! Her perfectly organized method (class courses and labs) enabled me to identify my weaknesses and improve on them, in order to excel at the GRE/GMAT and TOEFL exams. However, my greatest gain from working with Dia was her mentoring. Thanks to her, I managed to clarify my goals, plan my future, and develop the required skills to face potential challenges.

I also worked with Thomas Kalandranis during the preparation of my personal statement. He helped me organize my thoughts and created an accurate timeline for my life, to-date. Along with his guidance, we created a perfectly balanced document, tailored exactlty to the philosophy of HBS, which accurately reflected my achievements, goals and strengths, enabling me to present myself in the best possible way.

Although GMAT, GRE and TOEFL courses can be taught elsewhere, Dia Gerontoudi Prep Center offers that extra something, crucial to me and, I believe to all potential master’s students: INSPIRATION. I received true inspiration to study and excel at the exams, and, most importantly, to set goals -professional and academic-, to respect ethics, and to build a solid life plan.

I would wholeheartedly recommend Dia Gerontoudi Prep Center to all seeking motivation, as it has been a truly rewarding experience for me.”

George Kiousis (MiM, HEC Paris / Diploma in Electrical Eng., NTUA)

Preparation for adaptive tests such as the GMAT can be a very stressful and demanding process for a postgraduate student candidate. Consequently the necessity of a top level guidance and training is key to face with confidence any incoming obstacle.

During my exertion for the GMAT test I had the opportunity to work closely with Ms. Dia Gerontoudi (Verbal Section), Mr. Kostas Karalis (Quant Section) and Mr. Thomas Kalandranis (consulting). Their experience, systematization and innovative technique combined with a stimulating environment set solid foundations and facilitated the task.
I would wholeheartedly recommend Dia’s Gerontoudi Prep Center, due to the professionalism, the educational quality and the balanced result oriented methodology provided to ensure that each student has the potential to achieve high test scores required for universities’ applications.

Last but not least, inspiration is infused from the very beginning: “…The brick walls are there to stop the people who don’t want it badly enough. They’re there to stop the other people… ”.


Nicholas Chalaris (Entrepreneur / EMBA, INSEAD / MA in Marketing, Emerson College, USA)

I first met Dia in 2005 when we worked together for my GRE preparation and essay applications. At the time, I was successfully admitted to NYU, BU, and Emerson College.

Twelve years later, I decided to pursue an EMBA at INSEAD and Dia was there to support me again with my GMAT/BAT preparation. Although being out of school for that long, Dia managed to put me back on track in very short time, while Kostas Karalis with his unique approach in math helped me to go through the quantitative section in less than 2 months. Thomas Kalandranis reviewed my application essays and provided substantial feedback.

Admittedly, this prep period was not easy for me, but certainly their experience, methodology and devotion played a major part in my success. Thank you Dia, Thomas and Kostas for all this, I couldn’t ask for more.


Theodore Georgiou (MBA, LBS / Strategy Consulting at Deloitte / MSc in Constr. Economics and Mgt, UCL / MEng Civil Eng. NTUA / GMAT 750)

One of the most critical factors that enabled me to land acceptance offers from my target business schools was the support I had from Dia and Thomas who I worked with during the application process. As I was based abroad, our communication took place remotely and, given the challenges this presented, the result is a testament to the effectiveness of their methods and skills.

Dia helped me prepare thoroughly for my GMAT exam and get a high score. I believe the result was a combination of the effectiveness of her teaching methods and her personality but what I really appreciated was that she helped me understand the principles of the exam and the logic behind each question.

I also worked closely with Thomas who helped me during the preparation of my application essays. Through extensive and thorough discussions we developed a framework to approach the application process for each school. This proved fundamental in identifying my strengths and weaknesses and aligning them with my goals and achievements in order create a compelling story tailored to each school and effectively communicate my aspirations, ideas and values.

I highly recommend Dia Gerontoudi Prep Center for support on the MBA application process. Dia, Thomas and the team are not only experts in their field and very familiar with the philosophy and requirements of the leading business schools, but also very friendly and eager to help by mentoring and motivating you throughout the whole process.
Thanks for everything!

Nikos Gikizas (MSc in Operations Research, London School of Economics (LSE) / MASc in Mining and Mineral Eng., Queen’s University / Diploma in Mining Eng., NTUA / GMAT 710)

Η προετοιμασία για την εξέταση του GMAT ήταν, όπως αποδείχτηκε, πλήρης και πολύ αποτελεσματική, αλλά το σημαντικότερο για εμένα ήταν το “ζεστό” και υποστηρικτικό περιβάλλον, καθώς και οι άνθρωποι του Prep Center, που έκαναν την εμπειρία της προετοιμασίας πιο διασκεδαστική και ολοκληρωμένη. Σας ευχαριστώ για όλα.

Ν. Γκίκιζας

Spilios Proiskos (MBA Candidate, UCD Smurfit Graduate Bus. School / Diploma in Production Eng. and Management, Polytechnion Kritis / TOEFL 101 / GMAT 650)

I feel extremely lucky that I trusted Dia Gerountoudi Prep Center while preparing myself for an MBA. Dia and her staff, tutored me all the way till the GMAT exam. Also, as a part of a thorough preparation, they significantly assisted me with the editing of my applications for the Business Schools. Not only did they help me improve my self dramatically, but they enabled me to trust myself and understand that I could achieve anything.
Thank you for everything, highly recommended!!!

George Cambanis (MiM HEC Paris, Merit Scholarship / BA in Philosophy, University of Chicago / Athens College (HAEF) / GRE V167/Q167)

“I had a great experience preparing for the GREs under Ms. Gerontoudi’ guidance and mentorship. She was quick to identify my strengths and weaknesses and prescribe a mode of studying that was most conducive to achieving my desired level of preparedness. Besides a very targeted and structured preparation, I got to engage in great discourse with Ms. Gerontoudi who has an amazing ability to stir provoking thoughts, inspire self-assessment and guide personal development.

I was also introduced to Mr. Karalis who helped me prepare for the Quantitative part of the exam by covering exhaustively all required Math theory.

The center’s lab also provided a great simulation of the actual test experience such that by the time I took the actual exam I was comfortable with the material and prepared for the physical strains of a 4-hour exam.

It should also be noted that I got introduced to HEC’s MiM – my choice of program – by a presentation given by a HEC ambassador at the prep center.

I am very grateful for getting to know both of my instructors and selecting this preparation program and can earnestly say that I earned a lot more than what could be typically expected.”

Chris Mavridis (PhD in Electrical and Computer Engineering, University of Maryland, A. James Clark School of Engineering, Distinguished Graduate Fellowship / Diploma in Electrical and Computer Engineering, NTUA / Q168/V159)

Who says GRE preparation is an unpleasant or even meaningless procedure in your way to excel in the exams? Thanks to Dia Gerontoudi and her group, I spent two very productive (in terms of knowledge acquisition) months which built my conidence and helped me manage the demanding Ph.D. application process of the US universities. One can rarely and such a combination of professionalism and warm-hearted environment.

Dimitris Mavrogiannis (MSc in Management of Innovation, RSM Business Scool / AUEB BSc in Marketing)

Θα ήθελα να ευχαριστήσω το Dia Gerontoudi Prep Center καθώς έπαιξε για μένα καθοριστική σημασία στη επιτυχή έκβαση των αιτήσεων μου. Δε θα αναφερθώ καθόλου στην άριστη προετοιμασία για το IELTS και το GMAT διότι είναι αυτονόητα. Η ειδοποιός διαφορά του συγκεκριμένου κέντρου είναι οι άνθρωποι του. Από την Βάλλυ Καραμπακάκη στη γραμματεία εώς την κ. Ντία Γεροντούδη, όλοι σε έκαναν να νιώσεις σημαντικός για αυτούς, χτίζοντας μια ανθρώπινη σχέση ανάμεσα μας, δημιουργώντας ένα οικείο και άνετο περιβάλλον σίγουρης επιτυχίας. Πιστεύω ακράδαντα ότι η Ντία είναι ένας θαυμάσιος άνθρωπος που έχει πάει τον όρο mentoring στο επόμενο στάδιο και έπαιξε καθοριστικό ρόλο στη δικιά μου πορεία τόσο στην προετοιμασία των εξετάσεων όσο και στην διαδιαδικασία των αιτήσεων.

Giannis Ferentinos ( MSc in International Shipping and Finance, Henley Business School, University of Reading / BSc in Economics, NKUA)

I chose to prepare at “Dia Gerontoudi Prep Center” after a recommendation of a friend, whose word-of-mouth advertising about his experience there lived up to my expectations for a top quality preparation.

At Dia Gerontoudi Prep Center, the teaching was excellent and with my instructors continuously encouraged me to give 100% effort to optimize my results. I also found a friendly and supportive environment and the sense that they wished to get to know their students well. Learning alongside Ms. Dia Gerontoudi, Mr. Kostas Karalis, and Mr. Thomas Kalandranis, and Ms. Vally Karampakaki, I came to appreciate their professionalism and dedication to their work. Moreover, I realized that the material they provided me with in GMAT and IELTS courses, is an outcome of many years of work.

Already with acceptance offers for the postgraduate programs of my choice by Henley and Cass Business Schools, I leave behind excellent teachers who also stood by me as mentors and as friends.
So, just as my friends recommended Dia Gerontoudi Prep Center to me, I, too, recommend it with all my heart to anyone who has set ambitious goals in his life and is serious about achieving them.

Ioanna Dretta (Mid-Career Master in Public Administration, Harvard University Kennedy School of Government, and Kokkalis fellow / MSc in Soil Mechanics and Engineering Seismology, Imperial College London / Civil Engineering NTUA)

“Dia Gerontoudi was my tutor during my preparation for the GMAT and TOEFL examinations, as well as my counselor and editor for my application to the Harvard Kennedy School. In a few words, it was both a productive and enjoyable experience. Preparing for the GMAT could have been a trying process for me, given that I was working full time at the time, which limited severely the time I have available to study. Additionally, I simply had to obtain a very high score in my tests. Thankfully, I was presented with a refreshingly well organized, methodical teaching system that even offered me the chance to conduct lessons over VOIP, a most valuable time saving option. More than anything else, I was impressed with the mathematical approach to preparing for this examination, which under different circumstances would have been a much more challenging process for a non-native English engineer, such as me. Correspondingly, the teaching methodology for the TOEFL exam was just as highly focused and well-structured that I was able to prepare for it in the least amount of time.”

Stelios Kostalas (MC/MPA Harvard University)

’’Dia Gerontoudi played a crucial role in my successful preparation for Harvard University. Her efforts, efficiency as well as her pluralistic teaching techniques combined with a charismatic sense of humor (when i was about to quit my goal), enabled me overcome my weaknesses and accomplish my “mission”. No “Missions impossible” for Dia…’’

Tryfon Christopoulos (MSc in Operations Research, Columbia University / Karelias Scholarship / Dipl. in Mechanical Eng., NTUA / Arsakeio Psychikou)

“Choosing to prepare at Dia Gerontoudi Prep Center was a rather straightforward choice for me. Dia’s brand name and her previous success stories, along with the positive feedback I had received, made me feel very confident about my choice. Even more, I had the privilege to witness that her teaching goes beyond the context of the books; I would prefer to call it mentoring. Her experience and her inspiring advice made me explore new paths and broaden my mind in how I should approach my final decision. Together with Thomas Kalandranis they form a very effective team. You can be sure that if you follow their instructions there is no other way but to succeed!

Insider’s Tip: “For those seeking their academic future in a US University, Dia Gerontoudi Prep Center should be your first choice!”

Stamatis Paterakis (Decision Management at Citi / MSc in Operations Research, Columbia University / Dipl. in Electrical Engineering NTUA / Athens College (HAEF) / GRE 167/156)

Attending the GRE courses at Dia Gerontoudi Prep Center played a key role in the success of my graduate school applications. The experienced tutors, with their methodical, highly organized approach to the test, along with the friendly and stimulating environment, helped me achieve the high score I was aiming for. Many thanks to Mr. Kalandranis for his continuing support throughout the application and decision process, as well as his guidance on writing my personal statement which, according to the program director, was a deciding factor in my admission. Thank you for assisting me in the realization of my academic and professional dreams!

Dr Manolis Stavrakakis (First Year Coordinator-Fellow Design Tutor, Bartlett School of Architecture, UCL/History and Theory Tutor, AA, London/PhD AA/MSc in Advanced Architectural Design, Columbia University/Ptychion in Architecture NTUA)

Dia Gerontoudi has been my teacher for many years. More than a teacher she has been – and still is – my mentor. She has been guiding me throughout my postgraduate studies for my Master’s degree (Advanced Architectural Design) at Columbia University and for my Ph.D. at the Architectural Association. Even today that I have become a teacher myself, Dia Gerontoudi still offers me her advice – generously sharing with me her knowledge and her experience. Her exceptional skills as a teacher are not simply the result of her committed study, profound knowledge, deep understanding, and love for the English language, or her flawless technique and systematisation of how to apply them. It is her passion and her unique –rare for a teacher – talent to identify what is the best for each of her students, making sure to arm them with the knowledge, the skills, and the help needed to achieve success that set her apart. I am deeply indebted to her not only for helping me enter the schools of my first choice and succeeding in my postgraduate studies, but also for fuelling my drive to become an architect and a teacher of architecture.

Nikolas Vlavianos (Researcher MIT Media Lab-Architect / SMArchS MIT /M.S.AAD Columbia University / Architecture NTUA)

Dia is one of the most skilled individuals I’ve ever met in the arena of grad studies preparation. The dedication to her students and their ambitions is remarkable. I highly recommend it.

George Eleftheriou (Co-founder & CEO Sentio Solutions Inc., California / MSc in Management Science & Engineering, Columbia University / MBA NTUA / Electrical and Computer Eng. NTUA)

“Γνώριζω την Ντία Γεροντούδη από το 2009, όταν μου έκανε μαθήματα για το verbal section of GMAT. Το εξαιρετικό επίπεδο της διδασκαλίας της με οδήγησε στο να την επιλέξω ώς personal tutor στην προετοιμασία μου για αιτήσεις σε graduate programs δύο χρόνια αργότερα. Συγκεκριμένα, με προετοίμασε με τον καλύτερο τρόπο για τις εξετάσεις του GRE και του TOEFL και παράλληλα με βοήθησε καθοριστικά στο editing των εγγράφων που απαιτούνταν από τα πανεπιστήμια, ώστε να τονιστούν τα δυνατά σημεία της αίτησης μου. Με δεδομένο ότι εργαζόμουν full time κατά το διάστημα της συνεργασίας μας, δεν μπορώ παρα να μην τονίσω αρκετά την συνεισφορά της στην προετοιμασία μου.Η μεθοδική προσέγγισή στα θέματα καθώς και το εξαιρετικό προσωπικό υλικό της έκαναν την προετοιμασία μου πιο εύκολη και περισσότερο ενδιαφέρουσα.Υπάρχουν πολλά στα οποία θα ήθελα να αναφερθώ σχετικά με την Ms. Gerontoudi, αλλά αν έπρεπε να διαλέξω μόνο μερικές λέξεις, αυτές θα ήταν: άψογος επαγγελματίας, μεταδοτικός δάσκαλος και έμπειρος σύμβουλος.”

Nikolas Mourtzanos (MBA Chicago Booth / Electrical and Computer Eng. NTUA / TOEFL 107 / GMAT 720)

Επέλεξα το κέντρο Dia Gerontoudi για την προετοιμασία μου για MBA έχοντας τις καλύτερες συστάσεις από την αδερφή μου, Ελια Μουρτζανού (MBA-Wharton Alumnus, καθώς και acceptance από INSEAD, MIT) για την ποιότητα και αποτελεσματικότητα της δουλειάς τους και για την πολυετή εμπειρία τους από την υποστήριξη υποψηφίων που έγιναν δεκτοί σε πολλά από τα καλύτερα πανεπιστήμια του κόσμου.
Έχοντας πλέον ιδία εμπειρία, θα συνέστηνα ανεπιφύλακτα το Dia Gerontoudi Prep Center σε οποιονδήποτε αναζητεί υποστήριξη για την προετοιμασία του για σπουδές στο εξωτερικό υπογραμμίζοντας πέρα από την εξαιρετική τους δουλειά σε όλα τα επίπεδα, την επικέντρωση και το πραγματικό τους ενδιαφέρον στις ανάγκες και επιδιώξεις του υποψηφίου. Στο κέντρο Dia Gerontoudi δεν κάνουν απλώς και μόνο μαθήματα, αλλά υποστηρίζουν τις προσδοκίες και τις επιδιώξεις νέων ανθρώπων και αυτό το παίρνουν πολύ σοβαρά και το κάνουν με αληθινό ενδιαφέρον και επαγγελματισμό.
Η κα. Ντία Γεροντούδη με συστηματική προσέγγιση και πλήρη γνώση του αντικειμένου με βοήθησε να ανεβάσω τις επιδόσεις μου σε GMAT (Verbal & AWA Sections) και TOEFL, ενώ παράλληλα με υποστήριξε και με καθοδήγησε σε όλη τη διαδικασία των αιτήσεων.
Ο κος. Κων/νος Καραλής μου έδωσε μία βαθύτερη προσέγγιση στο Quantitative Section του GMAT και έκανε πραγματικά ευχάριστα και ενδιαφέροντα όλα τα μαθήματά μας.
Ο κος. Θωμάς Καλανδράνης με βοήθησε αποφασιστικά στο editing των αιτήσεων και στην προετοιμασία των interviews έχοντας γνώση και αντίληψη για την ιδιαίτερη φιλοσοφία και τις απαιτήσεις κάθε πανεπιστημίου, ενώ όταν τα deadline έγιναν σφιχτά ήταν εκεί σε ότι και αν τον χρειάστηκα.
Όλα τα παραπάνω σε ένα πολύ όμορφο και δημιουργικό περιβάλλον με όλες τις παροχές (exam simulations, mock interviews, labs, etc.).
Για όλα τα παραπάνω και για την συμβολή σας στην επίτευξη του στόχου μου σας ευχαριστώ θερμά και σας εύχομαι να συνεχίσετε για πολλά χρονιά να κάνετε αυτό που κάνετε τόσο καλά.

Xenia Mastropetrou (MBA Kellogg School of Management / BSc Management Science & Technology AUEB)

I had the luck to work with Dia for the preparation of GMAT and TOEFL tests. Not only did she perfectly organize the study material and gave a valuable input on how to strategically approach the test, but she also provided me with moral support during this challenging period. Dia is a really insightful person and has the amazing ability to “read” people; only after a few classes, she had already understood the ins and outs of me. I had the priviledge of having her as a mentor, which was the ultimate take away of our cooperation.
Also, I had the chance to work with Thomas for the preparation of my essays. For his part, Thomas was very responsive, supportive, and to the point. He helped me define my top choice schools and draw my overall application approach. My essays came out solid, structured, and a tad emotional, which aparently was one of the key success factors.
Throughout the preparation and application period, both of them coached me, introduced me to admission officers, and alumni of schools, which helped me understand the culture of each institution and decide whether I was a good fit for each one of them.
Finally, when I had to make the big decision, both Dia and Thomas provided me with a clear direction and helped me keep the decision making process aligned with my personal and professional goals. I am finally attending one of the best Graduate Business schools in the world and I can say I owe them a big part of this success. Thank you very much Dia and Thomas!

Markos Kladeftiras (Transportation Analyst at Cambridge Systematics, Inc. / MSc in Transportation Eng., MIT / Surveyor Engineer NTUA)

“My GRE preparation went excellent, and even though I had only one chance to take the test I succeeded! The structure of the course, as well as the very helpful material, contributed significantly to that. However, in the DiaGerontoudi Prep Center I did not find only that; I also found people that advised me when I needed help.”

Panagiotis Papadiamantis (Co-founder & CFO at ENDO Medical / MSc in Management Science and Engineering, Stanford University / Mechanical Engineering NTUA / A.G. Levendis Scholarship / Athens College (HAEF) / GRE 163/158)

Throughout my efforts to get into the graduate school of my choice, I had the chance to study at Dia Gerontoudi Prep Center. For me, it was much more than just a prep center. It was a source of moral support and a place where I could sense the mentality of a graduate academic environment. The unwavering commitment to provide me with a well-rounded preparation, on behalf of Dia Gerontoudi, Konstantinos Karalis, and Thomas Kalandranis, guided me all the way from the very first practice test to the last detail of my personal statement. I feel fortunate for having had the chance to work alongside the best and gain experiences valuable not only for my graduate studies but also for the rest of my life.

apostolos grevenitis
Apostolos Grevenitis (Consulting Analyst Accenture Washington DC / MMS, The Fuqua School of Business, Duke University, Dean’s Recognition Award και Fuqua Scholar (10%) / Electrical Engineering NTUA / Athens College (HAEF) / GMAT 740, TOEFL 111)

Absolutely the best when it comes to standardized tests preparation, Dia Gerontoudi Prep Center has helped me invaluably in my attempt to achieve high scores in both the GMAT and the TOEFL. In addition to the virtually limitless pool of exercises, the quality of the lab simulations and the overall help I received regarding my applications made a very positive impression on me. I wholeheartedly recommend it to anyone who wishes to achieve high scores in the standardized tests.

Dorotheos Papavasilis (Master of Management Studies, The Fuqua School of Business, DUKE University, DUKE Kunshan University / Dipl. in Mechanical Engineering, NTUA)

There is no doubt that Dia Gerontoudi Prep Center is synonymous with the top-notch preparation for post graduate studies in Greece. Mrs Gerontoudi and Μr Karalis are specialists in their field and along with the endless pool of exercises and lab simulation tests they constitute an unbeatable team and source of knowledge that can boost every individual’s preparation process.

But all said and done, I think the real difference at Gerontoudi Prep Center lies in something else. It lies in the inspiration! It is that feeling that gets you through the lessons and discussions, giving you the strength to overcome any obstacle in your way. It strengthened a lot my decision to spend the next year of my life studying in the USA and China PR.

I would recommend it to anyone for sure!

Stelios Sarantis (TYRAS SA / MSc in Food Science and Technology , The Ohio State University / Chemical Engineering NTUA)

Dia Gerontoudi Prep Center was recommended to me by a friend and, following his advice, I decided to arrange an appointment. From the very first moment of our meeting, Mrs. Gerontoudi inspired me with trust and confidence to achieve my goals. Feeling the positive vibes, I decided that this was the right place to do my preparation. The cooperation with Mrs Gerontoudi, Mr Kalandranis and Mr Karalis was very productive and in a friendly atmosphere. Working according to their instructions and on a tight schedule, I managed to get an 8 on IELTS and 156 Verbal / 167 Quant / 4 AWA on GRE within 3 months.

Apart from the lessons, the advice that I received was priceless. Mrs Gerontoudi helped me understand what really matters on an application. For instance, she pushed me to go for a college tour, meet the professors and show them my interest and driving force. If it was not her, I would have never visited the universities before applying and who knows what would be the result. Mr Kalandranis assisted me on the editing of my statements and the outcome was really exceptional. Overall, it was a remarkable studying experience.

Electra Athanasiou-Ioannou (Georgetown Law School, General LLM, A.G. Levendis Foundation Scholarship / IADR Business Certificate-International Arbitration and Dispute Resolution Business Certificate / Law School of Athens / Arsakeio Psychikou / TOEFL 113)

The TOEFL preparation period is not one to be taken lightheartedly. Just like the applications period for US top law schools. Both Dia and Thomas know this for a fact and are willing to prepare you- and arm you- with inspiration and persistence along the way.

Dia is a remarkable person and a wonderful teacher to prepare you for the highest TOEFL score. She has organized the lessons in “digestible bites” making it impossible for you to fail, provided that you follow her continuous guidance and meticulous instructions. She is the ideal teacher providing clear learning goals and scales to measure these goals, tracking each student’s progress and finally… celebrating each student’s success!

Thomas, for his part, is a person that understands each student’s unique interests and background in order to achieve the maximum effect for your personal statements and the proper format for your CV. He has an eye for the detail and a talent to personalize whatever type of professional document you might need mirroring your abilities to the fullest.

Both of them have a created a learning center, much more than just a preparation center, establishing and maintaining effective relationships with students. For this, I thank them from the bottom of my heart, I wish them all the best in their future career and, most of all, I hope to maintain a long-lasting relationship with them!

Giannis Polykretis (PhD in Computer Science, Rutgers University NJ / Diploma in Electrical Eng. NTUA / GRE 167/159 / TOEFL 106)

Η επιλογή του κέντρου προετοιμασίας για τις πιστοποιήσεις του GRE και του TOEFL ήταν μια από τις πιο σημαντικές στην ακαδημαική μου ζωή. Κι αυτό γιατί μετά από 5 χρόνια που δεδομένα βρισκόμουν σε πολύ υψηλό επίπεδο λόγω της σχολής ΗΜΜΥ του ΕΜΠ χρειάστηκε να περάσω ξανά ένα στάδιο ανταγωνισμού όχι στα στενά όρια της Ελλάδας αλλά σε παγκόσμιο επίπεδο. Η αναγνώριση της επιτυχιάς της επιλογής του Dia Gerontoudi Prep Center κρίθηκε πριν ακόμα από τα αποτελέσματα των εξετάσεων. Η κυρία Γεροντούδη έχει τη φανταστική ικανότητα να μεταδίδει όχι μόνο γνώσεις αλλά τον τρόπο σκέψης που απαιτέιται για να ανταπεξέλθει κανείς στην ιδιομορφία του Verbal του GRE. Με αντίστοιχο τρόπο βοήθησαν και οι άλλοι δύο καθηγητές, Θωμάς Καλανδράνης και Κωνσταντίνος Καραλής, που βοήθησαν πολύ και στον τομέα της ψυχραιμίας που πηγάζει από την άριστη γνώση του αντικειμένου και την εμπιστοσύνη στο επίπεδο δουλειάς που γίνεται. Για όλους τους παραπάνω λόγους συνιστώ το Dia Gerontoudi Prep Center, καθώς προσφέρει στους υποψηφίους πράγματα που όχι μόνο δύσκολα αποκτά κάποιος μόνος του αλλά δύσκολα βρίσκει και σε οποιοδήποτε άλλο αντίστοιχο κέντρο προετοιμασίας.

George Karavas (PhD Candidate/Research Associate, Arizona State University / Mechanical Engineering NTUA / GRE 166/157, TOEFL 108)

Η εμπειρία μου από το Dia Gerontoudi Prep Center αφορούσε τις εξετάσεις GRE και TOEFL και ήταν καθόλα θετική τόσο σε επαγγελματικό, όσο και σε προσωπικό επίπεδο. Κατάφερα να μπω σε ένα από τα μεγαλύτερα πανεπιστήμια της Αμερικής, ενώ είχα θετικές απαντήσεις και από άλλα πανεπιστήμια της επιλογής μου. Πρόκειται για ανθρώπους με πολυετή εμπειρία στο χώρο, που ξέρουν να κάνουν τη δουλειά τους και προσφέρουν άριστες υπηρεσίες και μάλιστα σε προσιτές τιμές. Σε ό,τι αφορά την ίδια την κα. Γεροντούδη, η οποία διδάσκει τα VERBAL κομμάτια των μαθημάτων, γνωρίζει πολύ καλά το αντικείμενό της, δείχνει μεγάλο ενθουσιασμό για τη δουλειά της, ενώ η οργάνωση του υλικού και τα tips για την προετοιμασία ήταν τα στοιχεία κλειδιά για τη δική μου επιτυχία τόσο στο GRE όσο και στο TOEFL. Εξαιρετική δουλειά γίνεται και από τον μαθηματικό του Prep Center, Kωνσταντίνο Καραλή, ο οποίος έχει μεράκι, εμπειρία, προσφέρει πολύ υλικό για μελέτη σε μορφή ασκήσεων, και κάνει πολύ ευχάριστο μάθημα. Επίσης, με βοήθησαν ουσιαστικά στη επιμέλεια του Statement of Purpose προσφέροντας χρήσιμες συμβουλές και οδηγίες, το οποίο παίζει πολύ σημαντικό ρόλο για προγράμματα του εξωτερικού και ειδικότερα για PhD σε πανεπιστήμια της Αμερικής που κατά κύριο λόγο με ενδιέφεραν. Τέλος, σε προσωπικό επίπεδο η σχέση με τους μαθητές τους δεν είναι μια σχέση πωλητή – πελάτη, αλλά δασκάλου – μαθητή, ενώ ήταν πάντα διαθέσιμοι για τυχόν συμβουλές ή απορίες που είχα ακόμη και μετά το τέλος των μαθημάτων. Εν ολίγοις, πρόκειται για μία από τις καλύτερες επιλογές στο χώρο της προετοιμασίας μεταπτυχιακών σπουδών, και τη συστήνω ανεπιφύλακτα σε οποιονδήποτε ενδιαφερόμενο.

George Kontoudis (PhD in Mechanical Eng.-Robotics Virginia Tech / Dipl. in Mechanical Engineering NTUA)

At Dia Gerontoudi Prep Center I was able to get the knowledge and guidance to cope with the intricate application process of the US universities. Dia teaches effectively for a difficult exam. More precisely, she is well-prepared, explains clearly and makes difficult topics easy to understand. Moreover, at her center, I received excellent consulting and mentoring from Thomas Kalandranis. He knows many universities in the US and can tailor his knowledge and advice on specific candidate choices, which is really important because every university may have its own orientation and culture.

Bottom line: At Dia Gerontoudi Prep Center one will find the most professional and caring people in Greece.

Stefanos Altsitzoglou (Commercial Consultant Interunity Mgt Corporation / Babson MBA Class ’18 / Maritime Economics, Pireaus University / GMAT 680)

I feel very fortunate for having crossed paths with Dia Gerontoudi in my effort to prepare for the GMAT and TOEFL exams.

Dia is an extremely knowledgeable and charismatic tutor. Her method of teaching helped me reach a high level of competence and spared me the frustration that is usually attributed to the arduous preparation required to excel on these exams – especially on the GMAT. I was impressed by her sharp perception and her pragmatic approach that ultimately allowed me to reach my desired outcome.

Apart from helping me to prepare for the exams, Dia has also shown genuine interest in the advancement of my career and has continuously supported me with valuable advice for which I will always be grateful.

George Panagopoulos (Finance Business Analyst Cisco / MSc in Financial Engineering NYU / BSc Bus. Economics and Finance AUEB)

“Dia Gerontoudi Prep Center contributed to achieve my goal, in the proper preparation for the required test, and in the editing of personal statements. Mrs. Dia with her extensive knowledge and valuable advice helped me make my dreams come true.

What distinguishes this center, apart from the high level of instruction, is the distinct and personal interest for everyone.

Thank you very much for everything!”

Valia Fragkou (Advisor to TIMA Charitable Foundation / MA in Arts Administration, Boston University / MBA in Entrepreneurship, Babson College / BSc in Finance NYU)

In my private tutorials for the GMAT examination with Dia, I was able to ameliorate my writing skills and greatly improve my overall performance. I focused on my weaknesses and learned the underlining principles. When applying for my Master’s Degree, Ms Gerontoudi’s magic touch in editing was the necessary step to take my Essays from Good to Extraordinary. Having the story will take you half the distance, the way you express it will take you all the way!

Prokopis Antonellis (MSc in Prosthodontics, Baylor University, TX / Athens Dental School / TOEFL 118, GRE 163/158)

“Dia Gerontoudi’s Prep Center is THE place to go and prepare for the various examinations. The professionalism of Dia and her staff never fails to get the job done while the individualised approach to each student’s strengths and weaknesses guarantees that one’s full potential is unlocked. In addition, the ample computer lab time that the students are offered is essential to understanding the nature of the tests. Another key strength of this Prep Center is its long experience with Personal Statements and Job Interview preparations. This is perhaps more important than doing well in the tests as this is the part where you “sell” yourself. No matter how good a product you have, it will very rarely sell itself without the efforts of a talented salesman. So, listen to the experts because failing to prepare is preparing to fail.”

Mario Ventiris (Master of Financial Economics, University of Toronto / BSc Economics AUEB (10%) / Entrepreneurship Management ACG-DEREE (SNF Scholar))

Choosing to continue your education and find the master’s degree which absolutely fits your future goals can be really challenging and sometimes chaotic. Thus, it is essential to have people by your side with the proper knowledge and a lot of experience to help you succeed. At Dia Gerontoudi Prep Center, I worked very closely with Thomas Kalandranis during the application process (resume, essays, SoPs) and from day one, I understood that he is a winner. His relentless effort to up the ante and motivate others, in combination with his editing skills, make him an ideal advisor for helping you with your next move.

Giorgos Kapoglis (Information Security Analyst at Align / MSc in Cybersecurity, Stevens Institute of Technology, New York / BASc Digital Systems Univ. of Piraeus)

One of the best Preparation Centers in Athens. Friendly staff organized and very helpful. Helped me score high both on GRE and TOEFL exams. Also, they helped me build a strong personal statement and organize my CV. As a result I have been accepted to Stevens Institute of Technology in New York for my Masters.

Spyretta Aggeli (MSc in Management, Stevens Institute of Technology, New York / Diploma in Electr. Engineering, NTUA )

Dia Gerontoudi Prep Center played a key role in my preparation for a master’s degree in the USA, after studying in NTUA. My preparation lasted about one year and I have worked closely with Dia Gerontoudi, Kostas Karalis, and Thomas Kalandranis.

Dia Gerontoudi was my tutor during the GRE and IELTS preparation. Not only was she an exceptional teacher and mentor, but also a professional that helped me to acquire the correct strategy for approaching those demanding examinations in the best possible way. Besides, her continuous support during this challenging period was of paramount importance.

I also had the pleasure of working with Kostas Karalis. His multifaceted knowledge and his eagerness to help all the students are some of the reasons that make him a unique teacher.

Of course, I worked with Thomas Kalandranis during the preparation of my Personal Statement and CV, which were deciding factors in my admissions. He really helped me to set my academic and professional goals and present myself in the best possible way, thanks to his great experience and adeptness.

I would totally recommend Dia Gerontoudi Prep Center to everybody seekingoutstanding support and inspiration in addition to expert instruction and superb organization of the study material.

Charis Karakatsanis (PhD student in Mineral and Energy Economics Colorado School of Mines / Mining and Metallurgical Engineer NTUA)

Dia’s long experience in the field allowed her to create a really simple, successful and easy to follow preparation method for the tests. She has small tips for every single part of the exams that make it so easy to understand exactly what it is needed. I feel lucky I was her student during the preparation for my graduate studies.

Jason Vratimos (BSc in Mechanical Engineering, Georgia Tech / SAT General and Subjects (Math and Physics))

Δεν γνωρίζουμε συγκεκριμένους και σημαντικούς ανθρώπους τυχαία, αντιθέτως αυτούς θα τους συναντήσουμε κάποια στιγμή στην ζωή μας για κάποιο λόγο…
Κάπως έτσι γνώρισα και εγώ την κα Ντία Γεροντούδη, τον κο Θωμά Καλανδράνη, τον κο Κώστα Καραλή και την κα Στεφανία Μητροκώτσα. Σημαντικά άτομα τα οποία με βοήθησαν να εμβαθύνω τις γνώσεις μου και να αποκτήσω ακόμα περισσότερες, καθοδηγώντας με σωστά και μεθoδικά. Ένα μεγάλο ευχαριστώ σε όλους αυτούς που δουλέψαμε μαζί & καταφέραμε να επιτύχουμε τους υψηλούς στόχους που θέσαμε! Αισθάνομαι την ανάγκη να αναφερθώ ιδιατέρα στην κα Ντία και στον κο Κώστα, δύο άτομα που είχα την τύχη να συνεργαστώ περισσότερο μαζί τους … Τους ευχαριστώ ξεχωριστά διότι μέσα από την εκπαίδευση που μου παρείχαν συνειδητοποίησα πως δεν είναι μόνο αξιόλογοι καθηγητές αλλά και σπάνιοι άνθρωποι & παιδαγωγοί! Στάθηκαν πάντα δίπλα μου & και μοιράστηκαν μαζί μου τις αγωνίες & τις ανησυχίες μου! Τους εύχομαι υγεία & δύναμη για να μπορούν να διαπλάθουν ακέραιες προσωπικότητες χρήσιμες στην επιστήμη, στην κοινωνία και στη χώρα μας!

Nicole Tamvaka (BSc in Neuroscience/Biophysics / Dickinson Class of 2020 / SAT General and Subjects: Math I and Physics)

Mrs. Dia Gerontoudi taught me more than writing a good essay, understanding difficult words like “soliloquy” or “incarnated” and comprehending the most bizarre SAT texts. With her unique teaching style and top-notch material she offered me a personalized learning experience, enhancing my strong elements while improving my weak ones. She provided me with knowledge in diverse areas broadening my horizons and intellectual interests and giving me different insight on the world around me.
She gave me confidence to go after my dreams and make them come true, and for that I’ll always be grateful. As I’m about to commence for the next chapter of my life as a student at Dickinson college, I’ll keep her words “good things happen to good people” as hope and motivation to move forward.

Yannis Brokakis (BSc in Sports Management North Carolina Wesleyan College / Athletic Scholarship / SAT General and TOEFL)

Dia Gerontoudi Prep Center is the best preparation center i have ever been. Friendly and professional staff in a really nice atmosphere, unique methods of teaching and helping to improve and level up my English. I had the chance to get a lot from my time there while they showed me the way how to learn a lot of new things in a short time. I fulfilled my aims for SAT and TOEFL tests and i got accepted in the USA to start a new chapter of my life.

Vasilis Douzenis (Consultant, Europe Economics / MPhil Economics Cambridge / MSc London School of Economics (LSE) / GMAT 730 / BSc Economics Univ. of Warwick)

“Dia really took the time to get to know me and identified my strong suits and comparative advantages, in order to compose documents that captured my uniqueness and made me stand out. The wealth of supporting material utilized during the teaching process, in combination with the tailor made approach, make for a unique learning experience with unparalleled results.”

Ismini Papaharalambous (MBA Cambridge Judge Bus. School / Dipl. in Mechanical Engineering NTUA / GMAT 700)

Choosing the right MBA can be quite tricky and the whole application process a real nightmare. Yet with the right people by your side everything can get a lot easier. I was lucky enough to make the right decision for my GMAT preparation. Mrs Dia Gerontoudi really upgraded my knowledge in English, helping me almost excel in the Verbal Section and Mr. Kostas Karalis guided me in the not-so-simple-even-for-an-engineer Quant Section. But the support went way beyond that. Once I finished, Mr. Thomas Kalandranis helped me write remarkable essays and prepared me for the demanding interviews that paved my way into admission. It was their care and support that made my dream come true. A simple thank you note, just can’t cover it all! I strongly recommend Dia Gerontoudi Prep Center for those out there who seek not only a good score, but also a new way of thinking!

Apostolos Atsalakis (MPhil in Nanotechnology Enterprise, University of Cambridge / SEMFE NTUA / GRE 165Q/150V and TOEFL 105 )

The year that you prepare yourself for your post graduate studies is a crucial step in your life. With the dedicated team working at Dia Gerontoudi Prep Center, your preparation is optimal and the feedback that you get during that time guides you towards your goal. I consider that apart from the perfect preparation for your exams it is very important that you get experienced advice for the big choices that you will be asked to take. The environment at Dia Gerontoudi Prep Center is very friendly on the one hand and very professional on the other, giving the necessary importance to the slightest details. I wish to thank you all for your vital help!

Claire Sergaki (Athens Law School / BSc Economics Deree College / MIDS LL.M. in International Dispute Settlement, Geneva / TOEFL 113 / 1st award 2016 (team coach) in International Dispute Settlement Competition organized by CILS, King’s College)

Dia Gerontoudi Prep Center played a key role in my admission in many LL.M programs across Europe and the US. For my TOEFL examination I prepared mainly with Dia Gerontoudi, who not only is an excellent teacher and professional but also an inspiring person. Her extremely well organized method, as well as her support, during the whole process is some of the characteristics that distinguish her as a tutor. There is no way that if you follow her tips and her study method that you will not excel.

For the editing of my papers I worked closely with Thomas Kalandranis. He provided me with excellent constructive criticism and helped me understand how to bring out the best in my application.

Due to their guidance and support, I clarified my goals and determined which would be the best LL.M. program for me.

Therefore, I definitely suggest it as the best center for preparing for your admission into any Master or PhD program.

Μargarita Karkantzou (Legal Assistant, Competition/Antitrust Team at Linklaters, London, UK / Master of Corporate Law, University of Cambridge, Jennings Prize (For Academic Excellence) / Athens Law School / IELTS 8.5)
Στο εκπαιδευτικό κέντρο της κ. Ντίας Γεροντούδη, παρακολούθησα μαθήματα για την προετοιμασία του IELTS. Το πρόγραμμα ήταν άριστα οργανωμένο, με πλήρες υλικό και κάλυπτε όλες τις απαιτήσεις του  συγκεκριμένου διπλώματος. Η κα. Γεροντούδη με την διδασκαλία και τις υποδείξεις της με βοήθησε να αναπτύξω μέσα σε σύντομο χρονικό διάστημα δεξιότητες και με ενέπνευσε να φτάσω τον στόχο μου. Η μεθοδικότητα, ο επαγγελματισμός, η οργάνωση και η άψογη μετάδοση της γνώσης αποτελούν ορισμένα απο τα χαρακτηριστικά, που την ξεχωρίζουν τόσο ως καθηγήτρια όσο και ως άνθρωπο.

Παράλληλα, με την βοήθεια, τις συμβουλές και την σωστή καθοδήγηση του έμπειρου κ. Καλανδράνη στην σύνταξη του personal statement  και του βιογραφικού μου, κατόρθωσα να εξασφαλίσω μία θέση σε ένα από τα καλύτερα πανεπιστήμια διεθνώς στον κλάδο της επιστήμης μου, στο University of Cambridge.

Ευχαριστώ και τους δύο θερμά για όλη αυτή την εμπειρία και θεωρώ ότι αποτελούν την καλύτερη επιλογή στην προετοιμασία για μεταπτυχιακές σπουδές.

Anna-Lali Tsilidou (Mc Kinsey Company Junior Bus. Analyst / Boston Consulting Group Intern / BSc Accounting and Finance, UOM / Accepted in MSc in Economics Warwick, LSE, Bocconi, UCL, Pompeu Fabra)

Although I did my BSc studies in Thessaloniki, I decided to do the GRE preparation in Athens, as I wanted to prepare at the Dia Gerontoudi Prep Center. Looking back, I could not be happier with my choice! Dia is an expert when it comes to GRE vocabulary and has structured the material in a very constructive and easy to comprehend way, avoiding the “learning-by-heart” trap and the frustration that comes with it. Just as important, if not more, was the guidance of Thomas Kalandranis, who helped me realize what I want to achieve with my studies and make a conscious decision. As a result, I have been accepted into the universities of my choice in Europe (LSE, UCL, Warwick, Bocconi …) and I will be starting a MSc in Economics from September onwards, while in the summer I will be interning at the Boston Consulting Group in Athens. Thank you all!

Myrto Oikonomou (MPhil Economics Oxford University/AUEB Economics/TOEFL 118, GRE 169/163)

” Studying for the GRE and TOEFL examinations can prove to be a very stressful and demanding experience. This is why every student should search for a prep center that goes beyond solving math and teaching how to memorize vocabulary.
At Dia Gerontoudi Prep Center, I found exactly that. Mrs. Gerontoudi, Mr. Karalis, and Mr. Kalandranis were more than very qualified and experienced tutors. They were people that genuinely cared about my progress and took the extra time and effort to guide me through the entire process of the exams. Their pedagogical system, contrary to the majority of prep centers, is not based on mass education and huge classes. It is based on a very skillfully organized program that includes courses and lab tests and on individual attention to each and every one of their students. In my experience, when faced with rather intimidating tests, crucial to my application, it was exactly the type of mentoring that helped me flourish. Mrs Dia’s classes taught me much more than vocabulary. They taught me how to be efficient in a highly stressful environment and how to perform well when on a tight time schedule. I am sure that her guidance and instructions will prove useful in many more occasions in the future, other than the GRE and TOEFL tests. I owe them so much for helping me succeed and I truly thank them for making this a really enjoyable experience! “

Stavros Michalopoulos (JD / LLM University of Cambridge / Georgetown University Law Center)

The LSATs are perhaps the hardest test a law student can ever take in their lives. In addition to being intellectually challenging, they are, as I like to call them “ a marathon run like a sprint”.

I did not know how to start preparing for the LSATs until I met Ms. Gerontoudi and Mr. Kalandranis. I was astounded by their professionalism and familiarity with such exams. The division of labor and their advice were of the highest quality while their thought process and teaching tactics were very methodical, always achieving the best possible result.

What particularly impressed me about both instructors is how well they understood my strengths and weaknesses from a very early stage and tailored the program to my needs instead of opting for the one-size-fits-all approach. I saw rapid progress in my studying and results from a very early stage and thus managed to get 5 offers from Universities from all over the United States.

Finally, I attest to their quality as human beings. They are both very friendly, easy going, with a wealth of knowledge and experience. Especially for those interested in studying and living in the US, Mr. Kalandranis can offer valuable advice regarding college applications and personal statements.

To conclude, I am very satisfied with the quality of work at Dia Gerontoudi Prep Center, and I am already strongly recommending it to everyone interested.

Natalia Kokkala (MSc International Finance, HEC Paris / NTUA Arch. Eng. / TOEFL 117 / GRE Q161/V165), Also accepted in MiM, London Business School (LBS)

“In Dia’s Prep Center I found exactly what I needed to prepare for my GRE exam, and a lot more beyond that.

The structured curriculum, comprehensive study materials and holistic teaching approach are tailored to the high standards of one of the most demanding exams, with Dia, Thomas and Mr Karalis being the catalysts to their students’ success. Thanks to their guidance I was able to organise and optimise my study plan, by covering a wide spectrum of material in the least possible time and in the most effective way. They helped me identify my weaknesses and work on them, thus achieving top scores at my exams.

Our collaboration goes back a few years, and they have consistently offered me their support and guidance, especially in my decision to switch careers and pursue a Master’s in a Business School.

I know that at Dia’s Center the door will always be open for me to come in, share my concerns, and get the advice I need to make tough career choices. Thank you for everything.”

Ζoe Papaharalambous (HEC-Paris MBA / CEO Ergmasin Deals PC / Diploma in Civil Engineering, Patras / GMAT 660)

After my admission at the HEC-MBA September 2017, I reflected on who and what helped me to reach my target.

It was easy for me to see that Dia and Thomas played a crucial role in my road to success. The organized structure of the courses at Dia Gerontoudi Prep Center and the methods that Dia used, helped me focus on my objective of a high score on GMAT and IELTS. Additionally, Thomas Kalandranis mentored me all the way through my application and advised me carefully on the most appropriate course of action.

Clearly, their love for what they practice can be seen in all aspects of their actions, advice, and lessons. I am thankful for all the time and patience my tutors and Thomas showed me, because they helped me face and overcome my weaknesses and become more organized and focused on my master targets.

I would totally recommend Dia Gerontoudi Prep Center to everyone if they want to prepare for their academic future in a professional, supportive, and organized environment!

Yannis Zisos (HEC-Paris MBA, MSc in Engineering & Economic Systems NTUA, Dipl. Electronics & Computer Engineering ΤUC)

Dia’s Prep Center constitutes the Absolute Catalyst to Success. Dia, Thomas and Kostas are top quality charismatic instructors-mentors who offer a unique learning experience.Best choice to accomplish your goals. Strongly Recommended.

Andreas Mastorakos (Business Analyst at Essilor / MiM HEC Paris – Grande Ecole / Diploma in Mechanical Eng. NTUA / GMAT 700)

“Pursuing your dreams is an ongoing adventure full of obstacles. During this effort I had the chance to be trained and guided by Dia Gerontoudi (Verbal Section), Thomas Kalandranis (Interview Preparation) and Kostas Karalis (Quant Section). Their personal care and experience formed the absolute creative environment that helped me develop all the necessary skills in order to make my dream come true. Overcoming the obstacles feels easier when feeling secure and well supported.”

Thomas Anastaselos (Business Development at Infosys / HEC MBA (UCLA Exhange Program) / Electrical and Computer Engineering, Univ. of Patras)

“Studying for the GMAT with Mrs. Dia Gerontoudi turned out to be a rather amazing experience. Her method of learning was highly organized and systematic, allowing for maximum efficiency in the minimum of time. It was also a great help to discuss possible postgraduate options and review the approach for each one of those. The successful admissions results justified her effective strategy.”

Dimitris Kofitsas (Investment Banking at Goldman Sachs / MBA London Business School (LBS) / The Vodafone Group Foundation-Sir Christopher Gent Award / AUEB Economics)

“Dia Gerontoudi played a determining role in my being admitted into the MBA programme at London Business School, with a special award on top! Apart from the dramatic improvement in my GMAT (the Verbal Section climbed from 60% to 90%), and TOEFL scores, Dia guided me along every step of my preparation, helping me highlight the strongest points of my personality in my personal essays. She is an outstanding tutor, who with her extensive knowledge, experience, and commitment drove me to distinguish myself among other candidates, in a very demanding, time consuming, and highly competitive process. I will be forever grateful to her.”

George Shaheen (Senior Operations and Planning Department Viking Cruises, BL, Switzerland / MiM, London Business School (LBS) / GMAT 720 / IELTS 8 / Production Eng. & Mgt TUC)

“Dia Gerontoudi was my private tutor for my GMAT preparation. It was a really stressful period for me because I was working full time at the moment and I had only one chance to score really high in the test because I was a late applicant for LBS. Thankfully Dias unique system got me from lower average to 94th percentile in no time. If you are looking for a methodical teaching system and a mathematical approach with proved results Dia should be your 1st choice. I am really grateful for her contribution to my career path.”

avra diamanti
Avra Diamanti (Infrastructure and Structured Finance Analyst at Edmond de Rothschild/MiM London Business School (LBS) / AUEB Acc. and Finance)

“Dia Gerontoudi was my tutor for the GMAT and TOEFL test. She is an excellent professional, a motivating teacher and a great person. Her lectures were thought-provoking, her material extensive and easy to read and her methodology was, even within the context of the class, customized to each student’s abilities. The center’s technical support and professional advice on the tests, the essay writing and the interview preparation were always substantial. Ultimately, due to Dia’s help, I feel better prepared to be fully adjusted in an international program.”

George Zeritis (Co-Head of Business Development at ZERITIS GROUP / MiM, London Business School (LBS) / AUEB Acc. and Finance)

” (At Dia Gerontoudi Prep Center, they) showed me the path to double up my verbal scores, coordinated my thoughts, edited my essays in a unique way, networked me with London Business School students – made me achieve my goals. The Best Prep Center in Greece by far!”

Maria Sarantopoulou (MSc in Public Policy and Administration, London School of Economics and Political Science (LSE) / Media and Communication EKPA)

When I joined the preparation centre of Dia Gerontoudi, I was searching for a prep center which would not only provide me the necessary knowledge for just passing the exams but a centre which would prepare me to integrate best into a university abroad and help me get a deeper knowledge on the tough studying programmes of a master’s degree at an international high level university. The professionalism of Mrs Gerontoudi and Mr. Kalandranis, and their experience is really impressive. The structure of the courses and the teaching method is an ace up a student’s sleeve, as the success in the exams is guaranteed and most important (which a student will figure out during his/her studies abroad) the courses are representative of a pre-course of a university. In addition, they and their associates are very friendly and supportive, which is extremely significant for such a stressful period. I would really recommend this to every ambitious student and I would like to thank them for that unique experience that they offered to me and my classmates.

Apostolos Paradellis (Senior Consultant Financial Services and Risk Management Dept., Ernst&Young / MSc in Finance, London School of Economics (LSE) / GMAT 690 / AUEB Management Science and Technology)

Dia Gerontoudi Prep Center focused on my personal needs and way of thinking and helped me succeed both in my GMAT scores and my applications. However, my experience was much more than that. The Center makes the difference by inspiring its students to do great; figure alternative university options and career paths, set goals and accomplish them. I would recommend it by all means.

Konstantina Giannakopoulou (LLB at London School of Economics (LSE) / AUEB Acc. and Finance)

I prepared at the Dia Gerontoudi center for my law entry exam (LNAT), IELTS and my overall application for law schools. From the first moment, the whole team approached my case individually and with extra care. I was astonished by their level of expertise, their organized and thorough material, and the in-depth knowledge of all “the tricks of the trade” and the aspects of an application, especially for a rare choice of field such as the bachelor in law abroad. I was exposed to learning material and techniques that fully expanded my way of thinking and helped me cultivate the much-needed for a law student critical and analytical skills.

Out of extended personal experience, I can guarantee that Dia Gerontoudi preparation center offers first tier services. Academic success, though, doesn’t derive only from good preparation for the compulsory examinations, but also lies in the mentality. The center is an extremely stimulating environment that pushes you to think beyond the obvious and explore that extra something that leads you to success. Mrs. Gerontoudi and Mr. Kalandranis, with whom I had the honor to work with towards my goals, share a remarkable passion for excellence and they have dedicated their lives to helping young, ambitious people achieve their dreams. The center helped me fulfill my wildest dream and I am more than happy to say, that at the center, I met a mentor for life: Mrs. Dia Gerontoudi.

Mariza Bakogianni (Commercial Planning Manager, Retail Banking, Branch Network & Deposits Piraeus Bank / MSc in International Employment Relations and Human Resource Management, LSE / Economics Univ. of Piraeus)

“I would highly recommend Dia’s professional, result oriented, highly structured and tailored to student’s needs work. She has successfully coached me throughout my planning for my graduate studies, beginning from the test exams preparation to effectively counseling me with the best approach to get into my desired course of studies in one of the world’s top universities. It was goes without saying that I feel privileged to have had Dia not only as my instructor but also as a valuable partner in this preparation step. She still is… even now in my professional life and she will definitely be in my next academic experience. A big thank you.”

Martha Georgakopoulou (MSc Accounting and Finance LSE / Business Administration AUEB)

Dia Gerontoudi Prep Center has been a valuable help and the key to success while preparing for my GMAT and IELTS exams. The materials were well structured and the entire preparation was focused on my needs and weaknesses. I worked out of Athens while preparing for the exams and I was impressed by the progress I was able to achieve via on-line lessons. At the same time, all the tips and pieces of advice provided proved to be exactly what was needed for the exams.

Agis Petrovits (Consultant at W-focus Geneva / MSc in Construction Economics and Management, University College London (UCL) –Bartlett School of Graduate Studies / IMD MBA in Lausanne / BEng Hons, Civil Engineering, Oxford Brookes Univ.)

Dia’s input was key while I was looking to apply a systematic approach to the GMAT examination that is critical for obtaining a high score on the exam.
Her experience dealing with the verbal and analytical aspects of the GMAT requirements and the method applied during our sessions helped me advance my performance and deliver solid results in the 85%+ region.

Stella Seymeni (LLB Candidate Durham University / LNAT Grade 28)

My LNAT tutoring sessions were very useful, from reading simulations to assumption exercises, it all helped boost my performance and receive an offer for my first choice university. My tutor Thomas Kalandranis was supportive, he noticed my weaknesses from the start and advised me on how to tackle them. All the lessons were very interesting and I can honestly say that I improved a bit more in every one of them. What I think especially benefited me were the simulation tests I took in the computer lab, the conditions were similar to those of the actual exam and hence it really helped me prepare for the real exam. Thank you for all your help 🙂

Yannis Rossonis (Mechanical Engineering UCL, MBA INSEAD)

Dia Gerontoudi Prep Center is a must when it comes to Grad School applications preparation. The Center is truly student focused – methodologies and tactics are customised according to each student’s strengths and weaknesses, forming the basis for success. Dia and Thomas, with whom I had the chance to work with, are very charismatic, experienced and results oriented. I fully recommend it!

Panos Patoucheas (LLB Queen Mary / Political Science, Athens Law School)

Throughout my LNAT and IELTS preparation for the UK top law schools, both Dia Gerontoudi and Thomas Kalandranis supported me enormously to pursue my goal. For me, Dia Gerontoudi Prep Center is not only an excellent, professional and well-equipped prep center for studying abroad, but it is a source of inspiration arming you with motivation and determination to achieve your goals. Undoubtedly, a great amount of my success is owned to Dia and Thomas.

Dia is more than an experienced and qualified tutor. She has a unique method of communicating her knowledge to each student, as well as organizing the lessons in such a way that almost everything would be understandable and she is specialist in her field. However, apart from all these qualities that make a tutor professional, Dia was willing to guide me offering advice that will be valuable for the rest of my life.

During my LNAT preparation, I worked closely with Thomas, who is an encouraging mentor and tutor. I remember how early he identified my weaknesses so that I could improve them. In addition, his endless pool of tests and labs gave me a great opportunity to maximize my LNAT performance. Also, Thomas helped me organize my personal statement contributing decisively to my successful application . More precisely, after a careful consideration of a CV , he is able to showcase the abilities and background of each student in a unique way in order to achieve the best possible results.

Finally, I feel very lucky to have cooperated with Dia and Thomas because through the process of my preparation, I have gained two genuine friends in them. I would like wholeheartedly thank both Dia and Thomas. Dia Gerontoudi Prep Center provides a uniquely creative and stimulating atmosphere, which helped me deepen my knowledge, as well as teach me that dreams have no limits. Ι hope they will continue teaching and preparing students with the same zeal and enthusiasm.

Eleni Antonakou (Law School of Athens, LLM/Queen Mary University, IELTS 8)

Dia’s teaching methods and organized learning along with her great vistas of knowledge makes IELTS preparation very easy and stimulating, too. Besides being an extremely intelligent teacher, she is an inspiration and a beautiful person, who provides not only typical knowledge but also moral training. Dia Gerontoudi Prep Center is an easy road to success!

Giannis Parganas (MSc in International Shipping and Finance, Henley Bus. School, University of Reading / Economics AUEB)

Το Dia Gerontoudi Pre Center ήταν ακριβώς αυτό που έψαχνα. Ένα φροντιστήριο όπου με οργάνωση και καθημερινή ενασχόληση θα είναι ικανό να με προετοιμάσει για το επόμενο βήμα μου, το μεταπτυχιακό. Τόσο στο IELTS όσο και στην προετοιμασία της αίτησης μου η εξαιρετική δουλεία των Dia Gerontoudi και Thomas Kalandranis έπαιξε σημαντικό ρόλο στην επιτυχία μου. Επίσης θέλω να τονίσω πως ο Thomas Kalandranis, υπεύθυνος για την προετοιμασία της αίτησης μου, με έκανε να τον αισθανθώ σαν φίλο μου αφού ήταν πάντα πρόθυμος να μου απαντήσει και να με βοηθήσει σε οποιαδήποτε ερώτηση μου και ανησυχία μου. Συνεπώς ο συνδυασμός της σκληρής προσπάθειας αλλά και της άριστης προετοιμασίας που μου προσφέρθηκε στο Dia Gerontoudi Pre Center οδήγησε στο να ξεπεράσω τις προσδοκίες μου και να γίνω δεκτός σε ένα υψηλού φήμης βρετανικό πανεπιστήμιο.

Marina Katsampani (Development Engineer for Electrical Systems, GE Power Switzerland / MSc in Energy Science and Technology, ETH Zurich / Electrical Engineering NTUA)

“Dia’s contribution in helping me prepare my CV and personal statement was very important. She coached me how to best express my ideas and present my unique personal characteristics, in such a way as to make my application stand apart. What made the difference for me was Dia’s ability to tailor her lessons to my abilities and needs, and help me push beyond my limits, to reach a new, higher level of performance. She is the ideal teacher for candidates with lofty goals.”

Pantelis Lemos (General Manager at Blossom Maritime Corporation / MSc in Shipping, Cass Business School / BSc Economics EKPA)

“Studying under Mrs. Dia Gerontoudi, I was impressed by her extremely organized methodology, which allowed us to cover a maximum of topics. My results at the very demanding GMAT examination were very strong and I feel I owe a great deal of my success to her instruction.”

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Asimina Paraskevopoulou (PhD Candidate, The Bartlett DPU, UCL,A.G. Levendis Foundation Scholarship/MSc Urban Development Planning, The Bartlett DPU, UCL, Bodossakis Scholarship, Diploma in Architectural Engin. NTUA)
Harry Zotos (Analyst at Seaborne Capital Advisors / MSc in Finance, IE Business School / ACCA / Accounting and Finance AUEB)

Η κα Ντία Γεροντούδη, και το προσωπικό του κέντρου της με το ανώτατο επίπεδο γνώσης τους με βοήθησαν να ανταπεξέλθω στις υψηλές απαιτήσεις των πανεπιστημίων του εξωτερικού και να εισαχθώ σε ένα από τα καλύτερα στην κατηγορία των business schools.Η πείρα και το αμέριστο ενδιαφέρον για τους μαθητές της συνέβαλαν καταλυτικά στην επιτυχημένη συνέχιση της ακαδημαΪκής μου καριέρας.

Savina Kousoula (Junior Account Executive McCann / MSc in Marketing and Strategy, University of Warwick / Communication and Media Studies EKPA)

In Dia Gerontoudi Prep Center you will find friendly and devoted professionals who do not only care about academics but also about you as a person. They will do their best to help you achieve your goal !!

Evita Nikitara (MSc in Accounting, Auditing and Control, RSM University / AUEB Accounting and Finance)

Dia Gerontoudi Prep Center is definitely the best choice for someone who wants to take GMAT/TOEFL courses. Dia does an awesome job and really cares about her students . She and her colleagues are very experienced and qualified. I definitely recommend Dia’s Prep center !

Maria Koutsogiorga (Pireaus University / MSc in Financial Economics, Rotterdam School of Management, Erasmus University)

Το να επιλέξεις το συγκεκριμένο φροντιστήριο ώστε να πετύχεις τους στόχους σου είναι η καλύτερη λύση γιατί η εμπειρία και η γνώση της κυρίας Ντίας Γεροντούδη και του κύριου Θωμά Καλανδράνη σε προετοιμάζουν κατάλληλα και σου προσφέρουν μια ασφάλεια και σιγουριά . Όλα αυτά όμως φαίνονται και στα στατιστικά επιτυχίας του φροντιστηρίου . Το πιο σημαντικό όμως , που δεν φαίνεται στα στατιστικά αλλά σίγουρα παίζει μεγάλο ρόλο , είναι το κλίμα και η ψυχολογική υποστήριξη που παρέχουν . Θα βρεις ανθρώπους που θα προσπαθήσουν να σε βοηθήσουν σε οποιοδήποτε δυσκολία συναντήσεις ακόμα και εκτός μαθήματος . Είναι πολύ σημαντικό σε μια αγχωτική και πιεστική διαδικασία να έχεις ανθρώπους δίπλα σου κάθε στιγμή που θα σε ηρεμήσουν , προσφέροντας λύσεις.

Stathis Karapanos (Music Studies, Hochschule für Musik Karlsruhe, Germany)

I am very delighted to have had the chance to learn and develop under the supervision of Ms. Gerontoudi and the staff of Dia Gerontoudi Prep Center. Both she and her colleagues inspired me from the very beginning and I am sure that they can and will inspire everyone that they work with. They have a very organised and methodic way of working and the atmosphere is very friendly. Needless to say that as a result a lot of their students have been accepted in some of the world’s most elite universities. It has been a very pleasant experience and I highly recommend it to everyone!

Panos Pitsillides (Finance Manager /Operations, External Fulfillment, and Infrastructure at Amazon Co. / IE MBA, Spain / Master in European Multicultural Integrated Management Economic Univ. of Krakow / BA Economics Essex)

Excellent professional services, from experienced and friendly staff. It is definitely the best choice for anyone who targets high scores ! 100% recommended. Thanks Doctor 🙂

Kostis Petkos (MRes in Bioengineering, Imperial College London / Electrical Eng. Aristotle Univ. of Thessaloniki)

Dia Gerontoudi Preparation center is a place you can find a friendly environment and great support not only for your English or Math exams but also for your personal statements and CV. Today as an MRes postgraduate student at Imperial College London in Bioengineering, I really thank all stuff and especially Dia for the help and guidance they gave me during these really stressful moments of my life!

Maria Stavridou (Economic Research Trainee at Kreab / MSc in Economics, University of Warwick / AUEB Economics)

Applying for studying overseas can be a very stressful and demanding procedure. Studying at Dia Gerontoudi Prep Center was definitely the best option and made this procedure a lot easier than it seemed at the beginning. With the constant tutoring and mentoring of Mrs. Gerontoudi, Mr. Kalandranis and Mr. Karalis I successfully managed to achieve my goals. Studying there was not only about learning grammar, vocabulary and math, but most of all about getting useful advice for the new chapter of our lives and building our personalities… Thank you all 🙂

Thanasis Giakos (Commercial Graduate Trainee at Wilmar Europe / MSc in Maritime Economics, and Logistics, Erasmus University / Management Science & Technology AUEB)

Mrs Dia manages to discover ones weakness and transform them into strengths ! Moreover, she is not only focusing to results but prefers providing high quality education, in any way possible. I will always remember our conversations..
Last but not least, the rest of the team, can help a lot with Msc applications.

Dimitris Zeritis (Co-Head of Business Development at Zeritis Group / MSc in Strategic Marketing, Imperial College London / Management Science and Technology AUEB)

Dia Gerontoudi Prep Center provides candidates with unique guidance, especially in the verbal section of the GMAT. With Dia’s help I managed scoring a 700 on my GMAT, which got me to Imperial!

Alexandros Kokkoris (Admin/Finance Associate, United Nations High Commissioner for Refugees / MSc in African Studies, University of Edinburgh / BA Political Science and History, Panteion Univ.)

Dia Gerontoudi Prep Center is a friendly environment that meets very high professional standards. With highly experienced and qualified staff that ensures to provide the necessary knowledge assets and valuable advice, it is definitely the best choice for students to help them achieve their goals.

Agathoklis Andrianos (Business Intelligence Analyst at ProQR Therapeutics NV / MSc in Biology and Science-based Business, Universiteit Leiden, Netherlands / Biomolecular Sciences and Biotechnology Univ. of Crete)

I highly recommend Dia Gerontoudi Preparation Center for plenty of reasons. To begin with, D. Gerontoudi’s center is more than a technocratic tutorial center. In my experience, it is a vivid advising and mentoring source, run by great and inspiring personalities, with excellent teaching skills and thorough knowledge on how to prepare a candidate in all levels. Ms. Gerontoudi and Mr. Kalandranis show a true and personal interest in your future goals and help you build up the path towards study programs/positions of your interest, starting off with TOEFL, GRE, GMAT preparations and then moving on to helping you organize your CV and edit your Letters of Intent. I acknowledge the first of the aforementioned to be the biggest advantage in choosing center – the personal factor. Moreover, the courses are perfectly organized and provide you with all of the essential knowledge and tips to success in the exams. To make a long story short, Dia Gerontoudi Prep Center’s contribution has been substantial for me, on multiple levels (on a personal level, as well), but most importantly on my being accepted in the MSc program of my interest. I will end this, saying a huge thank you!

Charis D. Stengos (National Empowerment Plan Manager, Microsoft Co. Romania / ΕSADE MBA, Spain / MSc Services Management AUEB / Business Administration AUEB)

Η επιλογή του φροντιστηρίου δε πρέπει να γίνεται με γνώμονα τις τυποποιημένες εκστρατείες marketing ή εναλλακτικά τις φθηνότερες προσφορές. Όταν θες να επενδύσεις στο μέλλον σου, ο μοναδικός τρόπος για να επιλέξεις σωστά είναι μέσω επιτυχημένων παραδειγμάτων προσωπικών σου φίλων (WoM). Έτσι έμαθα κι εγώ για το φροντιστήριο της κ. Γεροντούδη, και με τη σειρά μου το συνιστώ ανεπιφύλακτα σε όποιον θέλει να πετύχει. Η κ. Ντία έχει το μοναδικό τρόπο να σε καθοδηγεί, να σε διδάσκει, να σε εμπνέει, να σε ηρεμεί, και εν τέλει να σε οδηγεί στην επιτυχία.

Τι κατάφερα υπό τη καθοδήγηση της ?

  • Να αγγίξω το τέλειο score σε GMAT, GRE και TOEFL και τελικά να εισαχθώ σε top20 MBA.

Πως ένιωσα?

  • Δικαιωμένος για την επιλογή μου.
Areti Kornelaki (Senior Sales Manager, Korplast / MSc in Global Supply Chain Management, Cass Business School / Political Science and Public Administration EKPA)

Dia Gerontoudi Prep Center is not only about the structured, gap filling, perfectly time managed learning process. It’s more. A venue that fosters improvement, beyond learning. Full with people who have the experience and the holistic knowledge to identify capabilities you didn’t even know you had, and encourage you to pursue your development. Not just because it’s their job, but also their intention and responsibility. A place ready to serve the customized needs and potential of each student to the maximum. And that’s exactly what they did with me, during my IELTS,GMAT and MSc applications preparation, managing to get the first ranking in my “thank you” list, when all of the above were successfully accomplished. Overall, Dia Gerontoudi Prep Center, is like a big, warm, intellectual hug!

Dimitris Deventzis (Research Analyst at Bank of America, Merrill Lynch, London UK / MSc in Banking & Finance, St. Gallen, Switzerland / GMAT 710)

“Η κ. Γεροντούδη καλύπτει απόλυτα τις ανάγκες του υποψηφίου σε όλο την διαδικασία της αίτησης λόγω της χρόνιας ενασχόλησης της με το GMAT test, λόγω της ακαδημαϊκής της κουλτούρας και λόγω του έντονου ενδιαφέροντος της για την πορεία του μαθητή.”

Dimitris Drougkas (Senior Analyst, EY / Google Policy Fellow 2013 at Bruegel / MSc in International Economic Policy, Sciences Po Paris / Political Science and Government Panteion University)

“H Ντία Γεροντούδη με τον επαγγελματισμό, την γνώση, την αφοσίωση στον μαθητή και την ποιότητα της ως άνθρωπος συνέβαλε αποφασιστικά στην προσωπική μου επαγγελματική επιτυχία. Την ευγνωμονώ από καρδιάς”

Apostolos Pantelis (Deloitte IT Auditor/ MSc in Risk Management, ALBA / Electrical Engineering NTUA)

“Η κυρία Ντία Γεροντούδη είναι ένας εκπληκτικός άνθρωπος και επαγγελματίας. Με την προσωπικότητα και τις συμβουλές της με βοήθησε να ξεπεράσω τις αδυναμίες μου και να δώσω τον καλύτερό μου εαυτό ώστε να πετύχω τους στόχους μου. Ταυτόχρονα η άριστη μέθοδος διδασκαλίας, οι αποτελεσματικές τεχνικές αντιμετώπισης των τεστ και η εμπειρία της υπήρξαν καθοριστικοί παράγοντες στο να πετύχω σε πολύ σύντομο χρονικό διάστημα τα υψηλά σκορ σε GMAT και TOEFL που απαιτούσε το μεταπτυχιακό πρόγραμμα της επιλογής μου, παρότι κατά την έναρξη της προετοιμασίας το επίπεδο των αγγλικών μου δεν ήταν το επιθυμητό.

Ένα μεγάλο ευχαριστώ κυρία Ντία!

Επίσης, θα ήθελα να ευχαριστήσω ιδιαίτερα τον κύριο Κώστα Καραλή για τη σημαντική καθοδήγηση στο Quant μέρος του GMAT καθώς και τον κύριο Θωμά Καλανδράνη, η συμβολή του οποίου στην σύνταξη του CV και του Personal Statement υπήρξε καταλυτική για την αποδοχή μου στο RSM και στο ALBA.”

Hara Andriakopoulou (MSc in Biomedical Engineering, DELFT University of Technology / Diploma in Applied Mathematics, NTUA)

“Θα ήθελα να ευχαριστήσω μέσα από την καρδιά μου την κυρία Γεροντούδη για την πολύτιμη βοήθειά της στην προσπάθειά μου να πραγματοποιήσω τα όνειρά μου. Οι γνώσεις και η εμπειρία της ήταν για μένα πολύ σημαντικές καθώς με καθοδήγησε και με βοήθησε σε μία περίοδο δύσκολη για μένα και κρίσιμη για το μέλλον μου. Θα ήθελα επίσης να ευχαριστήσω τον κύριο Καλανδράνη για τη βοήθεια του και τις συμβουλές του όσον αφορά τις αιτήσεις που έκανα.”

George Stratigis (Consultant at Boston Consulting Group / MBA, INSEAD / Master of Engineering in Electronics and Electrical Engineering Univ. of Edinburgh)

While preparing for my MBA, I was fortunate enough to have Mrs Gerontoudi and Mr Kalandranis as my tutors.

Dia’s tuition methodology is beyond any doubt excellent. Her systemic approach helped me consistently deliver top grades on GMAT practice tests, as well as the actual exam.

Thomas is a professional who really knows how to get candidates in the right mindset. It took him only a few hours of coaching to make me understand what the schools expected to see in me and how to sell myself.

I wish to thank you both for your great support and guidance. I would recommend you to all who take their postgraduate journey seriously.

Λένα Καρκαντζού-Διοσκουρίδου

Ίσως είναι παράξενο ανάμεσα στα σχόλια μαθητών να γράψει και μία μητέρα. Το κάνω, γιατί θέλω να πω ενα μεγάλο “ευχαριστώ” στον άνθρωπο που δίδαξε, βοήθησε, ενέπνευσε, και καθοδήγησε σωστά τα παιδιά μου στον δρόμο των στόχων τους. Κυρία Γεροντούδη να είστε υπερήφανη που με τις γνώσεις και τη διδασκαλία σας, οι μαθητές σας βγαίνουν πάντα νικητές στη μονομαχία με τον ανταγωνισμό.