2021 WTA season
ATPWTA
The 2021 WTA season: 2,419 matches. Grand Slam champions: Osaka N., Krejcikova B., Barty A., Raducanu E.; most titles: Barty A. (5).
Hard 1,441 · Clay 685 · Grass 293 matches
Grand Slams, Tour Finals and 1000s
| 20 Feb 2021 | Australian Open Grand Slam | Osaka N. |
| 3 Apr 2021 | Miami Open 1000 | Barty A. |
| 8 May 2021 | Mutua Madrid Open 1000 | Sabalenka A. |
| 16 May 2021 | Internazionali BNL d'Italia 1000 | Swiatek I. |
| 12 Jun 2021 | French Open Grand Slam | Krejcikova B. |
| 10 Jul 2021 | Wimbledon Grand Slam | Barty A. |
| 15 Aug 2021 | Canadian Open 1000 | Giorgi C. |
| 22 Aug 2021 | Western & Southern Financial Group Women's Open 1000 | Barty A. |
| 11 Sept 2021 | US Open Grand Slam | Raducanu E. |
| 17 Oct 2021 | BNP Paribas Open 1000 | Badosa P. |
| 18 Nov 2021 | WTA Finals Tour Finals | Muguruza G. |
Most titles
Longest winning runs
Biggest upsets by the odds
| 23 Aug 2021 | Hanatani N. (402) | Blinkova A. (83) | 10.50 | Tennis in the Land 2501st Round |
| 15 Feb 2021 | Da Silva Fick G. (566) | Sasnovich A. (92) | 9.09 | Phillip Island Trophy 2502nd Round |
| 12 Jul 2021 | Sramkova R. (226) | Kvitova P. (12) | 7.97 | Prague Open 2501st Round |
| 20 Oct 2021 | Osorio M. (63) | Svitolina E. (6) | 7.66 | Tenerife Ladies Open 2501st Round |
| 9 Jan 2021 | Gasanova A. (292) | Pliskova Ka. (6) | 7.54 | Abu Dhabi WTA Women's Tennis Open 5002nd Round |
| 14 Feb 2021 | Gadecki O. | Kenin S. (4) | 7.45 | Phillip Island Trophy 2502nd Round |
| 29 Jun 2021 | Sasnovich A. (100) | Williams S. (8) | 7.16 | Wimbledon Grand Slam1st Round |
| 14 Feb 2021 | Birrell K. (739) | Cornet A. (54) | 6.52 | Phillip Island Trophy 2501st Round |
| 9 Feb 2021 | Mladenovic K. (52) | Sakkari M. (23) | 5.93 | Australian Open Grand Slam1st Round |
| 13 Apr 2021 | Fruhvirtova L. (499) | Cornet A. (59) | 5.90 | MUSC Health Women's Open 2501st Round |
Biggest upsets by ranking
| 30 May 2021 | Vesnina E. (1096) | Govortsova O. (138) | 958 | French Open Grand Slam1st Round |
| 14 Feb 2021 | Birrell K. (739) | Cornet A. (54) | 685 | Phillip Island Trophy 2501st Round |
| 11 May 2021 | Shvedova Y. (665) | Trevisan M. (97) | 568 | Internazionali BNL d'Italia 10001st Round |
| 15 Feb 2021 | Birrell K. (739) | Raina A. (181) | 558 | Phillip Island Trophy 2502nd Round |
| 29 Jun 2021 | Liu C. (608) | Doi M. (83) | 525 | Wimbledon Grand Slam1st Round |
| 15 Feb 2021 | Da Silva Fick G. (566) | Sasnovich A. (92) | 474 | Phillip Island Trophy 2502nd Round |
| 13 Apr 2021 | Fruhvirtova L. (499) | Cornet A. (59) | 440 | MUSC Health Women's Open 2501st Round |
| 31 Jan 2021 | Saville D. (452) | Kuzmova V. (98) | 354 | Yarra Valley Classic 5001st Round |
| 7 Apr 2021 | Navarro E. (481) | Zarazua R. (141) | 340 | Volvo Car Open 5001st Round |
| 12 Jul 2021 | Smitkova T. (478) | Inglis M. (138) | 340 | Prague Open 2501st Round |
Every final (54)
| 13 Jan 2021 | Abu Dhabi WTA Women's Tennis Open 500 | Sabalenka A. |
| 7 Feb 2021 | Gippsland Trophy 500 | Mertens E. |
| 7 Feb 2021 | Yarra Valley Classic 500 | Barty A. |
| 19 Feb 2021 | Phillip Island Trophy 250 | Kasatkina D. |
| 20 Feb 2021 | Australian Open Grand Slam | Osaka N. |
| 27 Feb 2021 | Adelaide International 500 | Swiatek I. |
| 6 Mar 2021 | Qatar Total Open 500 | Kvitova P. |
| 7 Mar 2021 | Lyon Open 250 | Tauson C. |
| 13 Mar 2021 | Dubai Duty Free Tennis Championships 500 | Muguruza G. |
| 14 Mar 2021 | Abierto Zapopan 250 | Sorribes Tormo S. |
| 21 Mar 2021 | Ladies Trophy 500 | Kasatkina D. |
| 21 Mar 2021 | Monterrey Open 250 | Fernandez L.A. |
| 3 Apr 2021 | Miami Open 1000 | Barty A. |
| 11 Apr 2021 | Copa Colsanitas 250 | Osorio M. |
| 11 Apr 2021 | Volvo Car Open 500 | Kudermetova V. |
| 18 Apr 2021 | MUSC Health Women's Open 250 | Sharma A. |
| 25 Apr 2021 | Istanbul Cup 250 | Cirstea S. |
| 25 Apr 2021 | Porsche Tennis Grand Prix 500 | Barty A. |
| 8 May 2021 | Mutua Madrid Open 1000 | Sabalenka A. |
| 16 May 2021 | Internazionali BNL d'Italia 1000 | Swiatek I. |
| 22 May 2021 | Emilia-Romagna Open 250 | Gauff C. |
| 22 May 2021 | Serbia Ladies Open 250 | Badosa P. |
| 29 May 2021 | Internationaux de Strasbourg 250 | Krejcikova B. |
| 12 Jun 2021 | French Open Grand Slam | Krejcikova B. |
| 13 Jun 2021 | Nottingham Open 250 | Konta J. |
| 20 Jun 2021 | Bett1Open 500 | Samsonova L. |
| 20 Jun 2021 | Viking Classic 250 | Jabeur O. |
| 26 Jun 2021 | Bad Homburg Open 250 | Kerber A. |
| 26 Jun 2021 | Viking International 500 | Ostapenko J. |
| 10 Jul 2021 | Wimbledon Grand Slam | Barty A. |
| 11 Jul 2021 | European Open 250 | Ruse E.G. |
| 18 Jul 2021 | Budapest Open 250 | Putintseva Y. |
| 18 Jul 2021 | Ladies Open Lausanne 250 | Zidansek T. |
| 18 Jul 2021 | Prague Open 250 | Krejcikova B. |
| 25 Jul 2021 | Internazionali Femminili di Palermo 250 | Collins D. |
| 25 Jul 2021 | Poland Open 250 | Zanevska M. |
| 9 Aug 2021 | Mubadala Silicon Valley Classic 500 | Collins D. |
| 15 Aug 2021 | Canadian Open 1000 | Giorgi C. |
| 22 Aug 2021 | Western & Southern Financial Group Women's Open 1000 | Barty A. |
| 28 Aug 2021 | Chicago Women's Opeen 250 | Svitolina E. |
| 28 Aug 2021 | Tennis in the Land 250 | Kontaveit A. |
| 11 Sept 2021 | US Open Grand Slam | Raducanu E. |
| 19 Sept 2021 | Luxembourg Open 250 | Tauson C. |
| 19 Sept 2021 | Slovenia Open 250 | Paolini J. |
| 26 Sept 2021 | Ostrava Open 250 | Kontaveit A. |
| 2 Oct 2021 | Astana Open 250 | Van Uytvanck A. |
| 3 Oct 2021 | Chicago Fall Tennis Classic 500 | Muguruza G. |
| 17 Oct 2021 | BNP Paribas Open 1000 | Badosa P. |
| 24 Oct 2021 | Kremlin Cup 500 | Kontaveit A. |
| 24 Oct 2021 | Tenerife Ladies Open 250 | Li A. |
| 31 Oct 2021 | Courmayeur Ladies Open 250 | Vekic D. |
| 31 Oct 2021 | Transylvania Open 250 | Kontaveit A. |
| 12 Nov 2021 | Generali Ladies Linz Open 250 | Riske A. |
| 18 Nov 2021 | WTA Finals Tour Finals | Muguruza G. |
Rankings (in brackets) are as at the match. Odds are the winner's pre-match average market price (Bet365 or Pinnacle before 2010). Winning runs ignore walkovers. Tour-level main draws. Data: tennis-data.co.uk.