Jannik Sinner defeated Carlos Alcaraz 7-6 (4), 7-5 in the final of the ATP Finals in Turin on Sunday, successfully defending his title in front of a partisan home crowd. The victory extended Sinner's winning streak on indoor hard courts to 31 matches, dating back to Italy's Davis Cup triumph in 2023.
The 24-year-old Italian becomes the youngest man to defend the ATP Finals title since Roger Federer in 2004, and only the second after Novak Djokovic to win the tournament consecutively without dropping a set. Sinner finishes the 2025 season with six titles and a 58-6 win-loss record, despite a three-month doping ban that shortened his campaign.
Alcaraz, who secured the year-end No. 1 ranking, had won seven of his previous eight matches against Sinner, but the Italian levelled the playing field with a composed performance. Sinner made tactical adjustments after his US Open defeat to Alcaraz, incorporating more drop shots and net play, and improving his serve. These changes paid off as he fired a 116mph second serve to save a set point in the first set.
The first set lasted 79 minutes, with both players serving precisely and attacking aggressively. A medical emergency in the crowd caused a 10-minute break, but it did not disrupt the intensity. Alcaraz received treatment for tightness in his right hamstring during the first set and had his leg taped for the second, which affected his movement.
Despite Alcaraz breaking early in the second set, Sinner responded with expressive celebrations, cupping his hands to his ears and raising his racket to the crowd. He broke back and served out the match, sealing a perfect end to his season with three titles and a 15-match winning run.
