How Does Jannik Sinner’s Indoor Supremacy Compare in ATP History?
An in-depth analysis by Infosys ATP Beyond The Numbers explores Sinner’s indoor mastery.
November 16, 2025
Corinne Dubreuil/ATP Tour
Jannik Sinner possesses the top indoor winning percentage among active players.
By Andrew Eichenholz
Jannik Sinner is transforming into an indoor legend.
The Italian star, set to clash with Carlos Alcaraz for the Nitto ATP Finals title this Sunday, has been unstoppable under the roof. The second seed’s semi-final against Alex de Minaur marked his 30th consecutive indoor match, and he shows no signs of faltering.
Sinner’s current winning streak is now the sixth-longest in the Open Era (excluding carpet), dating back to the finals in Turin two years ago where he faced off against Novak Djokovic. Only legends like John McEnroe, Djokovic, Roger Federer, and Ivan Lendl have achieved longer consecutive indoor hard-court victories, with Federer doing it twice.
McEnroe holds the record for the longest streak in the Open Era, clinching 47 victories in a row from 1978 to 1987. No other player has surpassed 35 consecutive wins.
All-Time Longest Indoor Hard-Court Winning Streaks in the Open Era
What truly sets Sinner’s success apart is not just the volume of wins, but the manner in which he achieves them. Out of his 30 victories during this run, only three have required a deciding set, while he has compiled an impressive 27 straight-sets wins, utilizing merely six tie-breaks.
During last year’s Nitto ATP Finals, Sinner dominated without losing more than four games in a single set, making him the first player since Lendl in 1986 to win the season finale without dropping a set. He has continued this remarkable form, sailing through four matches in Turin this year without losing a single set or serve.
Since the ATP started recording service statistics in 1991, only Novak Djokovic has reached the championship match at the Nitto ATP Finals without losing a service game (2018). Sinner attributes his indoor success to the unique conditions.
“When opponents hit hard, it’s challenging to pace the ball differently, which definitely benefits me when playing indoors,” Sinner noted. “However, I also focus on varying my pace, which is crucial, especially when facing diverse styles of play.
“Without wind or sunlight, the court’s conditions remain consistent. This continuity helps me feel increasingly at ease on the court, which is a significant advantage.”
Not only does Sinner’s indoor performance stand out among contemporaries, but it also places him among the sport’s all-time greats. The San Candido native boasts a remarkable indoor record of 90-21, earning him the fourth-best winning percentage in the Open Era per the Infosys ATP Win/Loss Index. Only McEnroe (85.3%), Lendl (83%), and Jimmy Connors (81.6%) have a better winning rate. Sinner has surpassed icons like Roger Federer (81%) and Bjorn Borg (80.6%) during the Nitto ATP Finals.
Currently, no other active player, including Djokovic (80.2%), can claim a higher indoor match winning percentage. Sinner has the opportunity to elevate his indoor legacy this week as he aims to extend his streak to 31 victories and successfully defend his Nitto ATP Finals title.
Editor’s Note: This piece was initially published following two matches at the 2025 Nitto ATP Finals and has since been updated with the latest statistics leading into the final.
