Sports1975–2026
Weeks at WTA World No. 1
The WTA computer rankings start in 1975 and quickly become a duel between Chris Evert and Martina Navratilova. Then Steffi Graf turns the leaderboard into a long reign, before Serena Williams, Ashleigh Barty, Iga Swiatek and Aryna Sabalenka pull the modern era back into motion.
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Source: WTA rankings records Career No. 1 week totals follow WTA records; year-end accumulation is reconstructed between known ranking eras and should be read as a close visual timeline. illustrative data Updated 2026-07-05