2021 ATP season
ATPWTA
The 2021 ATP season: 2,471 matches. Grand Slam champions: Djokovic N. (3), Medvedev D.; most titles: Djokovic N. (5).
Hard 1,437 · Clay 739 · Grass 295 matches
Grand Slams, Tour Finals and 1000s
| 21 Feb 2021 | Australian Open Grand Slam | Djokovic N. |
| 4 Apr 2021 | Miami Open 1000 | Hurkacz H. |
| 18 Apr 2021 | Monte Carlo Masters 1000 | Tsitsipas S. |
| 9 May 2021 | Mutua Madrid Open 1000 | Zverev A. |
| 16 May 2021 | Internazionali BNL d'Italia 1000 | Nadal R. |
| 13 Jun 2021 | French Open Grand Slam | Djokovic N. |
| 11 Jul 2021 | Wimbledon Grand Slam | Djokovic N. |
| 15 Aug 2021 | Canadian Open 1000 | Medvedev D. |
| 22 Aug 2021 | Western & Southern Financial Group Masters 1000 | Zverev A. |
| 12 Sept 2021 | US Open Grand Slam | Medvedev D. |
| 18 Oct 2021 | BNP Paribas Open 1000 | Norrie C. |
| 7 Nov 2021 | BNP Paribas Masters 1000 | Djokovic N. |
| 21 Nov 2021 | Masters Cup Tour Finals | Zverev A. |
Most titles
Longest winning runs
Biggest upsets by the odds
| 9 Feb 2021 | Albot R. (85) | Bautista Agut R. (13) | 11.43 | Australian Open Grand Slam1st Round |
| 15 Apr 2021 | Evans D. (33) | Djokovic N. (1) | 10.90 | Monte Carlo Masters 10003rd Round |
| 1 Jun 2021 | Seppi A. (98) | Auger-Aliassime F. (21) | 10.21 | French Open Grand Slam1st Round |
| 2 Jun 2021 | Laaksonen H. (150) | Bautista Agut R. (11) | 8.93 | French Open Grand Slam2nd Round |
| 27 Jul 2021 | Erler A. (337) | Alcaraz C. (55) | 8.85 | Generali Open 2501st Round |
| 21 Oct 2021 | Mannarino A. (51) | Rublev A. (6) | 8.35 | Kremlin Cup 2502nd Round |
| 30 May 2021 | Andujar P. (68) | Thiem D. (4) | 7.73 | French Open Grand Slam1st Round |
| 2 Sept 2021 | Seppi A. (89) | Hurkacz H. (13) | 7.57 | US Open Grand Slam2nd Round |
| 1 Sept 2021 | Van De Zandschulp B. (117) | Ruud C. (11) | 7.50 | US Open Grand Slam2nd Round |
| 3 Mar 2021 | Lajovic D. (27) | Medvedev D. (3) | 7.35 | ABN AMRO World Tennis Tournament 5001st Round |
Biggest upsets by ranking
| 22 Feb 2021 | Jarry N. (1165) | Munar J. (104) | 1061 | Cordoba Open 2501st Round |
| 24 Mar 2021 | Lu Y. (1020) | Querrey S. (63) | 957 | Miami Open 10001st Round |
| 31 Aug 2021 | Svajda Z. (716) | Cecchinato M. (81) | 635 | US Open Grand Slam1st Round |
| 2 Feb 2021 | Sweeny D. (797) | Nam J.S. (273) | 524 | Great Ocean Road Open 2501st Round |
| 17 May 2021 | Cazaux A. (517) | Mannarino A. (37) | 480 | Geneva Open 2501st Round |
| 10 Mar 2021 | Rune H. (410) | Paire B. (29) | 381 | Chile Open 2502nd Round |
| 19 May 2021 | Stricker D. (419) | Fucsovics M. (44) | 375 | Geneva Open 2502nd Round |
| 18 May 2021 | Stricker D. (419) | Cilic M. (46) | 373 | Geneva Open 2501st Round |
| 23 May 2021 | Cobolli F. (429) | Giron M. (82) | 347 | Emilia-Romagna Open 2501st Round |
| 22 Feb 2021 | Andreev A. (423) | Harris L. (82) | 341 | Singapore Open 2501st Round |
Every final (61)
| 13 Jan 2021 | Antalya Open 250 | De Minaur A. |
| 13 Jan 2021 | Delray Beach Open 250 | Hurkacz H. |
| 7 Feb 2021 | Great Ocean Road Open 250 | Sinner J. |
| 7 Feb 2021 | Murray River Open 250 | Evans D. |
| 21 Feb 2021 | Australian Open Grand Slam | Djokovic N. |
| 28 Feb 2021 | Cordoba Open 250 | Cerundolo J.M. |
| 28 Feb 2021 | Open Sud de France 250 | Goffin D. |
| 28 Feb 2021 | Singapore Open 250 | Popyrin A. |
| 7 Mar 2021 | ABN AMRO World Tennis Tournament 500 | Rublev A. |
| 7 Mar 2021 | Argentina Open 250 | Schwartzman D. |
| 13 Mar 2021 | Qatar Exxon Mobil Open 250 | Basilashvili N. |
| 14 Mar 2021 | Chile Open 250 | Garin C. |
| 14 Mar 2021 | Open 13 250 | Medvedev D. |
| 20 Mar 2021 | Dubai Tennis Championships 500 | Karatsev A. |
| 21 Mar 2021 | Abierto Mexicano 500 | Zverev A. |
| 4 Apr 2021 | Miami Open 1000 | Hurkacz H. |
| 11 Apr 2021 | AnyTech365 Andalucia Open 250 | Carreno Busta P. |
| 11 Apr 2021 | Sardegna Open 250 | Sonego L. |
| 18 Apr 2021 | Monte Carlo Masters 1000 | Tsitsipas S. |
| 25 Apr 2021 | Barcelona Open 500 | Nadal R. |
| 25 Apr 2021 | Serbia Open 250 | Berrettini M. |
| 2 May 2021 | BMW Open 250 | Basilashvili N. |
| 2 May 2021 | Millennium Estoril Open 250 | Ramos-Vinolas A. |
| 9 May 2021 | Mutua Madrid Open 1000 | Zverev A. |
| 16 May 2021 | Internazionali BNL d'Italia 1000 | Nadal R. |
| 22 May 2021 | Geneva Open 250 | Ruud C. |
| 23 May 2021 | Lyon Open 250 | Tsitsipas S. |
| 29 May 2021 | Belgrade Open 250 | Djokovic N. |
| 29 May 2021 | Emilia-Romagna Open 250 | Korda S. |
| 13 Jun 2021 | French Open Grand Slam | Djokovic N. |
| 13 Jun 2021 | Mercedes Cup 250 | Cilic M. |
| 20 Jun 2021 | Halle Open 500 | Humbert U. |
| 20 Jun 2021 | Queen's Club Championships 500 | Berrettini M. |
| 26 Jun 2021 | Mallorca Championships 250 | Medvedev D. |
| 26 Jun 2021 | Viking International 250 | De Minaur A. |
| 11 Jul 2021 | Wimbledon Grand Slam | Djokovic N. |
| 18 Jul 2021 | European Open 250 | Carreno Busta P. |
| 18 Jul 2021 | Hall of Fame Championships 250 | Anderson K. |
| 18 Jul 2021 | Nordea Open 250 | Ruud C. |
| 25 Jul 2021 | Croatia Open 250 | Alcaraz C. |
| 25 Jul 2021 | Mifel Open 250 | Norrie C. |
| 25 Jul 2021 | Suisse Open Gstaad 250 | Ruud C. |
| 31 Jul 2021 | Generali Open 250 | Ruud C. |
| 1 Aug 2021 | BB&T Atlanta Open 250 | Isner J. |
| 8 Aug 2021 | Citi Open 500 | Sinner J. |
| 15 Aug 2021 | Canadian Open 1000 | Medvedev D. |
| 22 Aug 2021 | Western & Southern Financial Group Masters 1000 | Zverev A. |
| 28 Aug 2021 | Winston-Salem Open at Wake Forest University 250 | Ivashka I. |
| 12 Sept 2021 | US Open Grand Slam | Medvedev D. |
| 26 Sept 2021 | Astana Open 250 | Kwon S.W. |
| 26 Sept 2021 | Open de Moselle 250 | Hurkacz H. |
| 3 Oct 2021 | Sofia Open 250 | Sinner J. |
| 4 Oct 2021 | San Diego Open 250 | Ruud C. |
| 18 Oct 2021 | BNP Paribas Open 1000 | Norrie C. |
| 24 Oct 2021 | European Open 250 | Sinner J. |
| 24 Oct 2021 | Kremlin Cup 250 | Karatsev A. |
| 31 Oct 2021 | St. Petersburg Open 250 | Cilic M. |
| 31 Oct 2021 | Vienna Open 500 | Zverev A. |
| 7 Nov 2021 | BNP Paribas Masters 1000 | Djokovic N. |
| 13 Nov 2021 | Stockholm Open 250 | Paul T. |
| 21 Nov 2021 | Masters Cup Tour Finals | Zverev A. |
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.