Vincent Leroux

Introduction: Why Standard Advice Fails Go to any tennis shop, and the advice is almost always the same: "You are a beginner? Take 280g. You are a competitor? Take 300g." This approach relies on a social metric (your ranking) to solve a physical equation (a collision). It is fundamentally flawed. At Matcheur , we believe that a tennis racquet is not just a product; it is a counterweight system designed to manage kinetic energy. We built our ProSetup Selector based on two fundamental...

CHAPTER 4: GEOMETRY, AERODYNAMICS & INTERFACE (THE FINAL OPTIMIZATION) 4.1. Aerodynamics: The War Against Drag (Cx) Marketing uses the term "Aerodynamic" to sell speed. The engineer sees a Drag Force equation: Fd = ½ · ρ · v² · Cd · A Where: v: Racquet velocity (Note that it is squared: a small aero gain has an exponential impact at high speed). A: Frontal area (profile thickness). Cd: Drag coefficient (related to section shape). Box Beam vs. Elliptical Section (Aero) Square Section...

CHAPTER 3: MASS, INERTIA & BIOMECHANICS (THE DYNAMIC EQUATION) 3.1. The Myth of Static Weight and the Racquet/Ball Couple The fundamental error of mass-market marketing is segmenting racquets by static mass (e.g., "280g for a beginner," "300g for a competitor"). This is an incomplete view that only considers the Player ↔ Racquet couple (the sensation of heaviness at rest), completely omitting the Racquet ↔ Ball couple (the collision). At impact, we are dealing with an Inelastic Collision...