Sports1973–2026
Weeks at ATP World No. 1
The ATP computer rankings launched in August 1973, and every week since has crowned exactly one world No. 1. This race counts those weeks as they pile up — from Connors' 160-week grip through Sampras and Federer to Djokovic's record 428.
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Source: ATP Tour Career week totals per ATP; within-year accumulation is approximated between year-end keyframes. Updated 2026-07-03