Jannik Sinner, a revolution at Wimbledon: He’s already shattered his own record

Jannik Sinner heads into his Wimbledon semifinal against Novak Djokovic with a weapon that has evolved significantly compared to the past: his serve. What the Serbian himself had called a “predictable” shot in 2022 is now one of the world No. 1’s greatest strengths, proving especially decisive in a tournament where his forehand hasn’t always been flawless.

In the quarterfinals against Jan-Lennard Struff, Sinner built his victory on his serve. After winning the first set thanks to a break in the eleventh game, he dominated the second-set tiebreak with a series of unreturnable serves: aces, winners, and first serves exceeding 200 km/h left the German unable to respond consistently.

His progress, however, isn’t just about speed. In recent years, Sinner has revolutionized his technique, modifying his movement, ball toss, and timing. His work on varying his serve options has also been crucial: wide serves to open up the court, kick serves to raise the bounce on grass, and flat serves down the middle in search of the ace. “It’s not just about hitting hard, but choosing the right serve at the right moment,” explained the Italian, emphasizing how his physical improvement has given him greater confidence.

A key turning point came after the 2023 French Open, when his team changed his foot positioning on the serve (from “foot back” to “foot up”), making the motion more effective and stable. The numbers confirm this evolution: points won on the first serve rose from 76% in 2022 to 85% at this year’s Wimbledon, while his average number of aces climbed from 5.4 to over 20 per match.

The overall statistics are also impressive. In the tournament he won in 2025, 62 aces were enough; this year he has already reached 97, ranking third in the tournament behind Struff and Bublik, both of whom have already been eliminated. His personal record remains the 31 aces he served against Kecmanovic in the first round.