• Jannik Sinner retained his ATP Finals title by defeating Carlos Alcaraz 7-6(4) 7-5.
• Sinner maintained an unbeaten streak in the tournament, finishing the year with six titles.
• This victory marks Sinner's second win over Alcaraz this season, improving their head-to-head record.

Italy's Jannik Sinner secured his place as the ATP Finals champion by overcoming world number one Carlos Alcaraz with a score of 7-6(4), 7-5, in a tense final match played in Turin. Sinner's victory is remarkable as he completed the tournament without dropping a set, marking a fitting end to a successful season where he also won the Australian Open and Wimbledon, amassing a total of $5.07 million in prize money, according to Reuters, BBC, Le Monde, and Al Jazeera.

Sinner's impressive performance in the final concluded a season marked by significant achievements despite a three-month doping ban that he overcame. He expressed his joy for winning in front of a home crowd, stating, "Finishing in front of the Italian public was a fantastic thing," referring to the electrifying atmosphere in the Inalpi Arena, according to BBC and Al Jazeera.

Throughout the match, Sinner not only showcased his resilience but also exhibited exceptional skill, rallying from behind after suffering early setbacks, such as double faults that allowed Alcaraz to break his serve in the opening of the second set. Nonetheless, Sinner rebounded effectively, ultimately breaking Alcaraz's serve to clinch the match and secure his title defense, as reported by Le Monde and Al Jazeera.

Sinner's triumph improves his career head-to-head record against Alcaraz, now at 10-6, and extends his remarkable winning streak on indoor hard courts to 31 matches. His accomplished 2025 season included victories against Alcaraz in both the Australian Open and Wimbledon finals, even as he faced challenges during the year, according to Reuters, BBC, and Le Monde.