At Hary K Tennis Academy, we bring passion, expertise, and a proven methodology to players of all ages and skill levels.
Whether you're an enthusiastic amateur or an aspiring professional, our commitment remains the same — helping you train like a pro.
Our Academy motto: Train Like a Pro!
For athletes in our competitive teams and professional players who trust us with their development, we offer a holistic training approach that includes:
- Advanced technical development
- Mental performance coaching
- Optimized physical conditioning
- Ergometric evaluations
- Physiotherapy support
- Expert sports nutrition guidance
In addition, we provide tailored programs for young male and female athletes. In partnership with a specialized Greek sports communication and athlete management firm, we offer strategic promotion, media outreach, and sponsorship marketing for those pursuing a professional career in tennis.
UpGrade.You!
Our philosophy is rooted in developing the complete athlete — body, mind, and character. Under the guidance of Head Coach Hary Krystallogiannis, each player receives high-level coaching and personalized mentorship to help them thrive both on and off the court.
Meet Our Team
Dr. Hary Krystallogiannis
Founder & Head Coach | PhD in Tennis | GPTCA/ATP Certified Level A Star Coach
Dr. Hary Krystallogiannis is a distinguished tennis coach with extensive experience at the highest levels of the sport. He is the only coach in Greece to hold the prestigious A Star Level certification from the Global Professional Tennis Coach Association (GPTCA), endorsed by the ATP. He is officially licensed and registered with both the General Secretariat of Sports and the Hellenic Tennis Federation (HTF). Holding a PhD in tennis from Sofia University, Dr. Krystallogiannis has coached multiple professional players throughout his career. He is the founder of Hary K Tennis Academy in Greece and serves as the National President of GPTCA Greece.
Kostas Papanikolaou
Fitness Trainer | GPTCA/ATP Certified Level C Coach (Level B candidate – June)
Vasilis Asimakis
Assistant Coach | GPTCA Level C Candidate – June
Orestis Aslanidis
Assistant Coach & Sparring Partner
Elfi Karampina
Sports Psychologist & Mental Coach
Rena Gallou
Sports Nutritionist
Panagiotis Korellas
Physiotherapist
At Hary K Tennis Academy, our philosophy is rooted in the belief that tennis can be a lifelong pursuit that shapes both body and mind. We are committed to helping young athletes and active players grow, not only as competitors but as individuals. Our goal is to equip each player with the tools, mindset, and values needed to reach their full potential—on and off the court.
We recognize that every athlete is unique. That’s why our approach is tailored to support their personal development, with tennis serving as a powerful vehicle for physical, mental, and emotional growth.
For our competitive players, we deliver a comprehensive training and conditioning program designed to help them perform at the highest level.
At the same time, we celebrate the joy of the game, offering engaging and inclusive lessons for children and adults of all levels—because tennis should be for everyone.