Since the Women's Tennis Association (WTA) rankings began in 1975, Steffi Graf spent the longest time at World No.*. During her career, which lasted for 17 years, Graf spent 377 weeks at the top of the rankings.Â
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WTA. (January 13, 2025). Professional female tennis players by number of total weeks at No.1 in the WTA rankings from 1975 to 2025 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 04, 2026, from /statistics/807652/wta-ratings-female-tennis-players-total-weeks-number-one/
WTA. "Professional female tennis players by number of total weeks at No.1 in the WTA rankings from 1975 to 2025." Chart. January 13, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 04, 2026. /statistics/807652/wta-ratings-female-tennis-players-total-weeks-number-one/
WTA. (2025). Professional female tennis players by number of total weeks at No.1 in the WTA rankings from 1975 to 2025. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 04, 2026. /statistics/807652/wta-ratings-female-tennis-players-total-weeks-number-one/
WTA. "Professional Female Tennis Players by Number of Total Weeks at No.1 in The Wta Rankings from 1975 to 2025." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 13 Jan 2025, /statistics/807652/wta-ratings-female-tennis-players-total-weeks-number-one/
WTA, Professional female tennis players by number of total weeks at No.1 in the WTA rankings from 1975 to 2025 ÌÇÐÄÆƽâ°æ, /statistics/807652/wta-ratings-female-tennis-players-total-weeks-number-one/ (last visited August 04, 2026)
Professional female tennis players by number of total weeks at No.1 in the WTA rankings from 1975 to 2025 [Graph], WTA, January 13, 2025. [Online]. Available: /statistics/807652/wta-ratings-female-tennis-players-total-weeks-number-one/
