The Italian claimed a whopping seven of his eight tour-level titles on hard courts this year and tallied a 53-3 (94.6 per cent) record on the surface. Two of those losses came against his rival Carlos Alcaraz, who finished second in match-win percentage on hard courts. Zverev's 40 hard-court wins were second to Sinner's season-leading 53.

Hard Court Infosys ATP Win/Loss Index

Sinner closed his season by triumphing at the Nitto ATP Finals, where he capped a perfect year on indoor hard courts. The 23-year-old went 13-0 on indoor hard, lifting trophies in Rotterdam and Turin.

Karen Khachanov and Tommy Paul also scored titles on indoor hard courts, finishing in the top three in those conditions according to the Infosys ATP Win/Loss Index. The 28-year-old Khachanov tallied the most indoor hard wins (14).

The 18-time tour-level champion Sinner earned a milestone moment at the ATP 500 in Halle this season, capturing his maiden title on grass. The World No. 1 in the PIF ATP Rankings went on a nine-match winning streak on grass before falling to Daniil Medvedev in the Wimbledon quarter-finals.

Sinner earned nine grass-court wins, which was one more than Wimbledon champion Alcaraz (8). Lorenzo Musetti tallied the most grass-court wins (12).

Sinner's countryman Matteo Berrettini led the Infosys ATP Win/Loss Index on clay with a 93.8 winning percentage (15-1). Berrettini won three tour-level titles on clay, lifting trophies in Marrakech, Gstaad and Kitzbühel.