Novak Djokovic

Twenty-four Grand Slam titles, the most weeks at No. 1 in history (428 total), and a 70% winning percentage across all surfaces make Djokovic the statistical peak of men's tennis. He outperforms #2 Federer in both total weeks at No. 1 and head-to-head record on grass, while his 2023 Australian Open triumph at age 35 tied a 53-year-old record.