– Panna Udvardy

WTA Player Top 100 / Hungary Fed Cup Player

“Jhonny is not just a great coach but an even better person. He is a big part in my tennis journey, helping me improve from WTA 350 to top 100 in the world. He is super committed, knowledgeable and cares about the player just as much as the person.”

– Jose Hernandez (Bebo)

Former ATP Top 200 / University North Carolina / Former Dominican Republic Davis Cup Player / WTA Coach

“I had the privilege of sharing many tournaments with Jhonny during my time as a tennis player, and I can confidently say that he is one of the finest coaches you will ever meet. His vast knowledge and extensive international experience set him apart in the world of tennis coaching.

Jhonny’s passion for the sport is contagious; he brings energy and intensity to every training session, pushing his players to reach their full potential. However, what truly makes him exceptional is his human side.

He has a unique ability to put himself in your shoes, understanding your perspective as a player. He guides you with genuine care, always prioritizing what’s best for your growth on and off the court.

Coaches like Jhonny are rare in the circuit, and his dedication, empathy, and expertise made him a standout mentor in my career”.

– Charlotte

Harvard Women’s Tennis ‘26 / ITF Juniors Top 75 / Juniors Grand Slams

“Coach Jhonny was instrumental in my growth both as a tennis player and as an individual during high school. At a time when I faced challenges in my development on court, he helped me regain my confidence and focus. His strategic guidance ensured that I competed in the right tournaments at the appropriate level, balancing my ITF and USTA rankings to maximize my growth and opportunities. His support extended beyond the court, as he travelled with my family and me to international tournaments, ensuring seamless coordination of logistics and competition schedules.

What truly set Coach Jhonny apart was his unwavering positivity and encouragement. No matter the situation, he always found ways to motivate and uplift me, creating an environment where I could thrive, enjoy the game, and improve daily. His ability to connect on a personal level while maintaining a professional focus made his coaching style exceptional.

– Víctor Estrella

Former ATP player #43 / 3 ATP Titles / Former Dominican Republic Davis Cup Player / Olympic Games Rio 2016

“Coach Jhonny was instrumental in my growth both as a tennis player and as an individual during high school. At a time when I faced challenges in my development on court, he helped me regain my confidence and focus. His strategic guidance ensured that I competed in the right tournaments at the appropriate level, balancing my ITF and USTA rankings to maximize my growth and opportunities. His support extended beyond the court, as he travelled with my family and me to international tournaments, ensuring seamless coordination of logistics and competition schedules.

– Nick Hardt

Currently ATP Top 200 / Gold Medal Central American Games / Bronce Medal Panamerican Games Chile
/ Dominican Republic Davis Cup Player

My name is Nick Hardt, the number one tennis player from the Dominican Republic. I am currently ranked 200 ATP.
I have the opportunity to have Jhonny as the captain of the Davis Cup and work alongside him these coming years, where he has helped me achieve several important titles in my career.
Jhonny is a coach who gives his all on the court, he has a lot of passion for the sport, and he puts his heart into every practice.
He is a coach with a wealth of experience and makes a strong impression wherever he goes. We are always in contact despite the distance. I am extremely grateful for all his professionalism.