TECNIFIBRE | Inside the Racket Customization of U14 Champion Jonas Waelti

What does it take to fine-tune a racket for a future star? Our customizer Dieter takes you behind the scenes of Jonas Waelti's racket customization, making precise adjustments to help the young Swiss player hit with greater depth and gain stability, especially at the net. ⚙️ Weight: 289 g → 295 g ⚙️ Balance: Additional weight at 3 and 9 o’clock for greater stability. Small adjustments can make a big difference. After winning in London the U14 category, Jonas is already taking on players competing on the pro tour. Every detail matters as he continues to raise his game.