| January 2021 | ||
|---|---|---|
| CATEGORY | TOURNAMENT | START DATE |
| ATP 250 | Delray Beach Open | 07.01.2021 |
| ATP 250 | Antalya Open | 07.01.2021 |
| ATP 250 | Melbourne 1 (Adelaide) | 31.01.2021 |
| ATP 250 | Melbourne 2 | 31.01.2021 |
| February 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP Cup | ATP Cup | 01.02.2021 |
| Grand Slam | Australian Open | 08.02.2021 |
| ATP 250 | Cordoba Open | 22.02.2021 |
| ATP 250 | Open Sud de France (Montpelleir) | 22.02.2021 |
| March 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 500 | ABN AMRO World Tennis Tournament (Rotterdam) | 01.03.2021 |
| ATP 250 | Argentina Open (Buenos Aires) | 01.03.2021 |
| ATP 250 | Chile Open (Santiago) | 08.03.2021 |
| ATP 250 | Open 13 Provence (Marseille) | 08.03.2021 |
| ATP 250 | Qatar Open (Doha) | 08.03.2021 |
| ATP 500 | Abierto Mexicano (Acapulco) | 15.03.2021 |
| ATP 500 | Dubai Duty Free Tennis Championships | 15.03.2021 |
| ATP 1000 | Miami Open | 24.03.2021 |
| April 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 250 | U.S. Men's Clay Court Championship (Houston) | 05.04.2021 |
| ATP 250 | Grand Prix Hassan II (Marrakech) | 05.04.2021 |
| ATP 1000 | Monte-Carlo Masters | 11.04.2021 |
| ATP 500 | Barcelona Open | 19.04.2021 |
| ATP 250 | Hungarian Open (Budapest) | 19.04.2021 |
| ATP 250 | BMW Open (Munich) | 26.04.2021 |
| ATP 250 | Estoril Open | 26.04.2021 |
| May 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 1000 | Madrid Open | 02.05.2021 |
| ATP 1000 | Internazionali BNL d'Italia (Rome) | 09.05.2021 |
| ATP 250 | Geneva Open | 16.05.2021 |
| ATP 250 | Open Parc Auvergne-Rhone-Alpes Lyon | 16.05.2021 |
| Grand Slam | Roland Garros | 23.05.2021 |
| June 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 250 | Libema Open ('s-Hertogenbosch) | 07.06.2021 |
| ATP 250 | MerdecesCup (Stuttgart) | 07.06.2021 |
| ATP 500 | Fever-Tree Championships | 14.06.2021 |
| ATP 500 | Noventi Open (Halle) | 14.06.2021 |
| ATP 250 | Mallorca Championships | 20.06.2021 |
| ATP 250 | Nature Valley International (Eastbourne) | 21.06.2021 |
| Grand Slam | Wimbledon | 28.06.2021 |
| July 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 250 | Hall of Fame Open (Newport) | 12.07.2021 |
| ATP 500 | Hamburg European Open | 12.07.2021 |
| ATP 250 | Nordea Open (Bastad) | 12.07.2021 |
| ATP 250 | Abierto de Tenis (Los Cabos) | 19.07.2021 |
| ATP 250 | Croatia Open Umag | 19.07.2021 |
| ATP 250 | Swiss Open Gstaad | 19.07.2021 |
| Olympics | Tokyo Olympics | 24.07.2021 |
| ATP 250 | Generali Open | 26.07.2021 |
| ATP 250 | Atlanta Open | 26.07.2021 |
| August 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 500 | Citi Open (Washington) | 02.08.2021 |
| ATP 1000 | Rogers Cup (Toronto) | 09.08.2021 |
| ATP 1000 | Western & Southern Open (Cincinnati) | 15.08.2021 |
| ATP 250 | Winston-Salem Open | 22.08.2021 |
| Grand Slam | US Open | 30.08.2021 |
| September 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 250 | Moselle Open (Metz) | 20.09.2021 |
| ATP 250 | St. Petersburg Open | 20.09.2021 |
| Laver Cup | Laver Cup (Boston) | 24.09.2021 |
| ATP 250 | Chengdu Open | 27.09.2021 |
| ATP 250 | Sofia Open | 27.09.2021 |
| ATP 250 | Zhuhai Championships | 27.09.2021 |
| October 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 500 | China Open (Beijing) | 04.10.2021 |
| ATP 500 | Japan Open (Tokyo) | 04.10.2021 |
| ATP 1000 | Shanghai Masters | 10.10.2021 |
| ATP 250 | European Open (Antwerp) | 18.10.2021 |
| ATP 250 | Stockholm Open | 18.10.2021 |
| ATP 250 | Kremlin Cup (Moscow) | 18.10.2021 |
| ATP 500 | Erste Bank Open (Vienna) | 25.10.2021 |
| ATP 500 | Swiss Indoors Basel | 25.10.2021 |
| November 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| ATP 1000 | Paris Masters | 01.11.2021 |
| NextGen | Next Gen ATP Finals (Milan) | 09.11.2021 |
| ATP Finals | ATP Finals (Turin) | 14.11.2021 |
| January 2021 | ||
|---|---|---|
| CATEGORY | TOURNAMENT | START DATE |
| WTA 500 | Abu Dhabi WTA Women's Tennis Open | 06.01.2021 |
| WTA 500 | Melbourne 1 | 31.01.2021 |
| WTA 500 | Melbourne 2 | 31.01.2021 |
| February 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| Grand Slam | Australian Open | 08.02.2021 |
| WTA 250 | Melbourne 3 | 13.02.2021 |
| WTA 500 | WTA 500 Australia | 22.02.2021 |
| March 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| WTA 500 | Qatar Open | 01.03.2021 |
| WTA 250 | Open 6ème Sens Métropole de Lyon | 01.03.2021 |
| WTA 1000 | Dubai Duty Free Tennis Championships | 08.03.2021 |
| WTA 250 | Abierto de Guadalajara | 08.03.2021 |
| WTA 250 | Abierto GNP Seguros (Monterrey) | 15.03.2021 |
| WTA 500 | St. Petersburg Ladies Trophy | 15.03.2021 |
| WTA 1000 | Miami Open | 22.03.2021 |
| April 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| WTA 500 | Volvo Car Open (Charletson) | 05.04.2021 |
| WTA 250 | Copa Colsanitas (Bogota) | 05.04.2021 |
| WTA 250 | Kunming Open (Anning) | 12.04.2021 |
| WTA 500 | Porsche Tennis Grand Prix (Stuttgart) | 19.04.2021 |
| WTA 250 | Tennis Championship Istanbul | 19.04.2021 |
| WTA 1000 | Madrid Open | 26.04.2021 |
| May 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| WTA 1000 | Internazionali BNL d'Italia (Rome) | 10.05.2021 |
| WTA 250 | Internationaux de Strasbourg | 17.05.2021 |
| WTA 250 | Grand Prix Morocco | 17.05.2021 |
| WTA 250 | Cologne Open | 17.05.2021 |
| Grand Slam | Roland Garros | 23.05.2021 |
| June 2021 | ||
| CATEGORY | TOURNAMENT | START DATE |
| WTA 250 | Libema Open ('s-Hertogenbosch) | 07.06.2021 |
| WTA 250 | Nottingham Open | 07.06.2021 |
| WTA 250 | Birmingham Classic | 14.06.2021 |
| WTA 250 | Bett1Open (Berlin) | 14.06.2021 |
| WTA 500 | Eastbourne International | 21.06.2021 |
| WTA 250 | Bad Homburg Open | 21.06.2021 |
| Grand Slam | Wimbledon | 28.06.2021 |
