Jannik Sinner has reached another landmark in tennis. On 21 July 2026, the ATP confirmed that the Italian has accumulated 81 weeks as world No. 1, moving into tenth place on the all-time list.
The 24-year-old has now passed Lleyton Hewitt, who spent 80 weeks at the summit. Sinner first became No. 1 on 10 June 2024 and, after returning to the top during the 2026 season, has built a sizeable lead in the rankings.
The milestone matters because it reflects more than a single title or a short run of form. It shows that Sinner has converted major victories into sustained authority at the highest level. The next historical threshold is 100 weeks, with Andre Agassi on 101 and Björn Borg on 109 directly ahead of him.
ATP figures place Sinner 4,970 points clear of his nearest challenger, Alexander Zverev. That margin gives him room to extend his stay at No. 1, although the North American hard-court swing will be the next major test of his consistency.
This article was written from scratch by ON MEDIA.AL using the official ATP Tour announcement as its factual basis. It does not reproduce the source material, and the photograph is used only as an editorial illustration.
