Tournaments
| Year | Tour | Tournament | Surface | Level | Dates | Matches | Champion |
|---|---|---|---|---|---|---|---|
| 2021 | ATP | Davis Cup WG1 R1: IND vs FIN | Hard | Davis Cup | 2021-09-17 | 3 | - |
| 2021 | ATP | Davis Cup WG1 R1: KOR vs NZL | Grass | Davis Cup | 2021-09-17 | 3 | - |
| 2021 | ATP | Davis Cup WG1 R1: UZB vs NOR | Hard | Davis Cup | 2021-09-17 | 3 | - |
| 2021 | ATP | Davis Cup WG2 R1: BAR vs INA | Hard | Davis Cup | 2021-09-17 | 3 | - |
| 2021 | ATP | Davis Cup WG2 R1: DOM vs TUN | Hard | Davis Cup | 2021-09-17 | 4 | - |
| 2021 | ATP | Davis Cup WG2 R1: SLO vs PAR | Clay | Davis Cup | 2021-09-17 | 3 | - |
| 2021 | ATP | Davis Cup WG2 R1: SUI vs EST | Hard | Davis Cup | 2021-09-17 | 4 | - |
| 2021 | ATP | Davis Cup WG2 R1: THA vs DEN | Hard | Davis Cup | 2021-09-17 | 4 | - |
| 2021 | WTA | Luxembourg | Hard | WTA International | 2021-09-13 | 29 | Clara Tauson |
| 2021 | WTA | Portoroz | Hard | WTA International | 2021-09-13 | 31 | Jasmine Paolini |
| 2021 | WTA | US Open | Hard | Grand Slam | 2021-08-30 | 127 | Emma Raducanu |
| 2021 | ATP | US Open | Hard | Grand Slam | 2021-08-30 | 127 | Daniil Medvedev |
| 2021 | WTA | Chicago 1 | Hard | WTA Tour | 2021-08-23 | 31 | Elina Svitolina |
| 2021 | WTA | Cleveland | Hard | WTA Tour | 2021-08-23 | 31 | Anett Kontaveit |
| 2021 | ATP | Winston-Salem | Hard | ATP 500/250 | 2021-08-23 | 47 | Ilya Ivashka |
| 2021 | WTA | Cincinnati | Hard | WTA Premier | 2021-08-16 | 55 | Ashleigh Barty |
| 2021 | ATP | Cincinnati Masters | Hard | Masters 1000 | 2021-08-16 | 55 | Alexander Zverev |
| 2021 | ATP | Canada Masters | Hard | Masters 1000 | 2021-08-09 | 47 | Daniil Medvedev |
| 2021 | WTA | Montreal | Hard | WTA Premier | 2021-08-09 | 55 | Camila Giorgi |
| 2021 | WTA | Cluj-Napoca 1 | Clay | WTA International | 2021-08-02 | 30 | Andrea Petkovic |
| 2021 | WTA | San Jose | Hard | WTA Tour | 2021-08-02 | 27 | Danielle Collins |
| 2021 | ATP | Washington | Hard | ATP 500/250 | 2021-08-02 | 47 | Jannik Sinner |
| 2021 | ATP | Atlanta | Hard | ATP 500/250 | 2021-07-26 | 27 | John Isner |
| 2021 | ATP | Kitzbuhel | Clay | ATP 500/250 | 2021-07-26 | 27 | Casper Ruud |
| 2021 | WTA | Tokyo Olympics | Hard | Olympics | 2021-07-24 | 64 | Belinda Bencic |
| 2021 | ATP | Tokyo Olympics | Hard | ATP 500/250 | 2021-07-24 | 64 | Alexander Zverev |
| 2021 | WTA | Gdynia | Clay | WTA International | 2021-07-19 | 31 | Maryna Zanevska |
| 2021 | ATP | Gstaad | Clay | ATP 500/250 | 2021-07-19 | 27 | Casper Ruud |
| 2021 | ATP | Los Cabos | Hard | ATP 500/250 | 2021-07-19 | 27 | Cameron Norrie |
| 2021 | WTA | Palermo | Clay | WTA International | 2021-07-19 | 31 | Danielle Collins |
| 2021 | ATP | Umag | Clay | ATP 500/250 | 2021-07-19 | 27 | Carlos Alcaraz |
| 2021 | ATP | Bastad | Clay | ATP 500/250 | 2021-07-12 | 27 | Casper Ruud |
| 2021 | WTA | Budapest | Clay | WTA International | 2021-07-12 | 31 | Yulia Putintseva |
| 2021 | ATP | Hamburg | Clay | ATP 500/250 | 2021-07-12 | 27 | Pablo Carreno Busta |
| 2021 | WTA | Lausanne | Clay | WTA International | 2021-07-12 | 31 | Tamara Zidansek |
| 2021 | ATP | Newport | Grass | ATP 500/250 | 2021-07-12 | 27 | Kevin Anderson |
| 2021 | WTA | Prague | Hard | WTA International | 2021-07-12 | 31 | Barbora Krejcikova |
| 2021 | WTA | Hamburg | Clay | WTA International | 2021-07-05 | 27 | Elena Gabriela Ruse |
| 2021 | WTA | Wimbledon | Grass | Grand Slam | 2021-06-28 | 127 | Ashleigh Barty |
| 2021 | ATP | Wimbledon | Grass | Grand Slam | 2021-06-28 | 127 | Novak Djokovic |
| 2021 | WTA | Bad Homburg | Grass | WTA Tour | 2021-06-21 | 31 | Angelique Kerber |
| 2021 | WTA | Eastbourne | Grass | WTA Tour | 2021-06-21 | 31 | Jelena Ostapenko |
| 2021 | ATP | Eastbourne | Grass | ATP 500/250 | 2021-06-21 | 27 | Alex De Minaur |
| 2021 | ATP | Mallorca | Grass | ATP 500/250 | 2021-06-21 | 27 | Daniil Medvedev |
| 2021 | WTA | Berlin | Grass | WTA Premier | 2021-06-14 | 27 | Liudmila Samsonova |
| 2021 | WTA | Birmingham | Grass | WTA International | 2021-06-14 | 31 | Ons Jabeur |
| 2021 | ATP | Halle | Grass | ATP 500/250 | 2021-06-14 | 31 | Ugo Humbert |
| 2021 | ATP | Queen's Club | Grass | ATP 500/250 | 2021-06-14 | 31 | Matteo Berrettini |
| 2021 | WTA | Nottingham | Grass | WTA International | 2021-06-07 | 47 | Johanna Konta |
| 2021 | ATP | Stuttgart | Grass | ATP 500/250 | 2021-06-07 | 27 | Marin Cilic |
| 2021 | WTA | Roland Garros | Clay | Grand Slam | 2021-05-31 | 127 | Barbora Krejcikova |
| 2021 | ATP | Roland Garros | Clay | Grand Slam | 2021-05-31 | 127 | Novak Djokovic |
| 2021 | ATP | Belgrade 2 | Clay | ATP 500/250 | 2021-05-24 | 27 | Novak Djokovic |
| 2021 | ATP | Parma | Clay | ATP 500/250 | 2021-05-24 | 27 | Sebastian Korda |
| 2021 | WTA | Strasbourg | Clay | WTA Tour | 2021-05-24 | 31 | Barbora Krejcikova |
| 2021 | WTA | Belgrade | Clay | WTA Tour | 2021-05-17 | 31 | Paula Badosa |
| 2021 | ATP | Geneva | Clay | ATP 500/250 | 2021-05-17 | 27 | Casper Ruud |
| 2021 | ATP | Lyon | Clay | ATP 500/250 | 2021-05-17 | 27 | Stefanos Tsitsipas |
| 2021 | WTA | Parma | Clay | WTA Tour | 2021-05-17 | 31 | Coco Gauff |
| 2021 | WTA | Rome | Clay | WTA Premier Mandatory | 2021-05-10 | 55 | Iga Swiatek |