Gauff's Serve: The Most Improved Weapon in Women's Tennis

Two years ago, Coco Gauff's serve was the subject of whispered concern in coaching circles. Double faults in pressure moments. A ball toss that wandered. A motion that sometimes looked like it was fighting itself.

Today, Gauff's serve is arguably the most improved shot in professional tennis — men's or women's.

By The Numbers

The Biomechanical Changes

Frame-by-frame analysis reveals three critical adjustments:

1. Ball Toss Consistency

Gauff's ball toss was the root of her serving problems. It drifted too far to the left, forcing compensatory adjustments in her motion. Working with biomechanics expert Dr. Mark Kovacs, she's developed a toss that lands consistently in a 6-inch target zone — down from a 14-inch scatter pattern.

2. Trophy Position

Her racket drop is now 15 degrees deeper, creating more potential energy for the upward swing. This single change accounts for approximately 4 mph of the speed increase.

3. Leg Drive

Gauff's knee bend at the loading phase has increased from 120 degrees to 105 degrees. The additional leg drive translates directly into upward force and, consequently, serve speed.

The Impact

The serve transformation has fundamentally changed Gauff's game. She's holding serve at 82%, up from 68% two years ago. More importantly, she's winning first-serve points at 73%, a rate that puts her among the WTA elite.