Racket Form · Form lab and gear fitting
See how the pros hit.
Then find gear that fits how you do.
Every stroke is solved from real biomechanics, measured on the figure you see, and scrubbable to the frame.
Federer · Ready
Athletic base, racket head above wrists in front of the body
Elbow
75°
Knee
45°
Turn
0°
Gear intelligence
Real frames.
Real photos.
Yonex Vcore Pro Alpha 290g — pulled live from the catalog with a product photo, not a placeholder silhouette.
The 2020 Yonex VCore delivers a spin-friendly performance profile The 100 square inch head size provides excellent forgiveness and a generous sweet spot. With...
Athletes
Pick an athlete to study.
Each one opens the form lab with their own strokes: the same mechanics, tuned to how they actually hit.
- 01
Roger Federer
Switzerland · 2003–2022
All-court classic, efficiency, timing, disguise
Scrub in lab →
- 02
Rafael Nadal
Spain · 2001–2024
Lefty baseliner, extreme topspin, grit, geometry
Scrub in lab →
- 03
Novak Djokovic
Serbia · 2003–present
Defensive-aggressive, flexibility, balance, BH wall
Scrub in lab →
- 04
Serena Williams
USA · 1995–2022
First-strike power, serve + FH dominance
Scrub in lab →
- 05
Carlos Alcaraz
Spain · 2021–present
Modern explosive all-courter, RPM, drop shot, athleticism
Scrub in lab →
- 06
Jannik Sinner
Italy · 2019–present
Flat-to-heavy first strike, clean takeback, early contact, Speed Pro mold
Scrub in lab →
Gear database
Every spec, side by side.
Filter 675 frames by weight, swingweight, stiffness and balance. Plot the whole market on any two specs, compare up to four frames, and see how each one launches the ball.