

About Us
Hello, my name is Sébastien Mielle and I have been a tennis coach for many years.
A sportsman at heart 🏋️, I have always had the desire to understand movement, concentration and performance.
This is what led me to obtain two coaching diplomas, in tennis and swimming, and to devote my career to supporting athletes of all levels.
What deeply fascinates me is the progress of my students .
I believe that sport is not only a question of technique, but above all a question of organization, sensations and concentration.
My role is to create situations that allow players to experience new and positive feelings:
- feel better placed
- more balanced
- more precise
Seeing a student have that click, that smile 😃 when they feel they are really making progress, is for me the greatest reward.
At the same time, I cultivate another passion: long-distance trail running .
Spending several hours in the great outdoors, pushing my limits, learning to manage effort and stay focused over time... all of this brings me personal balance and nourishes my vision as a coach.
I find the same demands there as in tennis: to be present, attentive, connected to one's body and to the moment.
Through TennisPerformanceSystem , my goal is clear:
to provide players with simple yet powerful tools to improve their focus, better organize their game and perform with confidence.
Every player has enormous potential – often all it takes is a change in approach to trigger a real transformation.