| Tournament | Start Date | End Date |
| ATP Cup | 3-January-2020 | 12-January-2020 |
| Qatar Open | 6-January-2020 | 11-January-2020 |
| Auckland Open | 6-January-2020 | 18-January-2020 |
| Adelaide International | 13-January-2020 | 18-January-2020 |
| Australian Open | 20-January-2020 | 2-February-2020 |
| Córdoba Open | 3-February-2020 | 9-February-2020 |
| Open Sud de France | 3-February-2020 | 9-February-2020 |
| Maharashtra Open | 3-February-2020 | 9-February-2020 |
| ABN AMRO World Tennis Tournament | 10-February-2020 | 16-February-2020 |
| Bengaluru Open 2020 | 10-February-2020 | 16-February-2020 |
| New York Open | 10-February-2020 | 16-February-2020 |
| Argentina Open | 10-February-2020 | 16-February-2020 |
| Rio Open | 16-February-2020 | 23-February-2020 |
| Delray Beach Open | 17-February-2020 | 23-February-2020 |
| Open 13 | 17-February-2020 | 23-February-2020 |
| Dubai Tennis Championships | 24-February-2020 | 29-February-2020 |
| Mexican Open | 24-February-2020 | 29-February-2020 |
| Chile Open | 24-February-2020 | 1-March-2020 |
| Davis Cup Qualifying Round | 6-March-2020 | 7-March-2020 |
| Indian Wells Masters | 12-March-2020 | 22-March-2020 |
| Stuttgart Open | 12-March-2020 | 22-March-2020 |
| Miami Open | 25-March-2020 | 5-April-2020 |
| Grand Prix Hassan II | 6-April-2020 | 12-April-2020 |
| U.S. Men's Clay Court Championships | 6-April-2020 | 12-April-2020 |
| Monte-Carlo Masters | 12-April-2020 | 19-April-2020 |
| Barcelona Open | 20-April-2020 | 26-April-2020 |
| Hungarian Open | 20-April-2020 | 26-April-2020 |
| Estoril Open | 27-April-2020 | 3-May-2020 |
| Bavarian International Tennis Championships | 27-April-2020 | 3-May-2020 |
| Madrid Open | 3-May-2020 | 10-May-2020 |
| Italian Open | 10-May-2020 | 17-May-2020 |
| Geneva Open | 17-May-2020 | 23-May-2020 |
| Lyon Open | 17-May-2020 | 23-May-2020 |
| French Open | 24-May-2020 | 7-June-2020 |
| Mercedes Cup | 8-June-2020 | 14-June-2020 |
| Libema Open | 8-June-2020 | 14-June-2020 |
| Queen's Club Championships | 15-June-2020 | 21-June-2020 |
| Halle Open | 15-June-2020 | 21-June-2020 |
| Mallorca Open | 22-June-2020 | 27-June-2020 |
| Nature Valley International | 22-June-2020 | 27-June-2020 |
| Wimbledon | 29-June-2020 | 12-July-2020 |
| German Open | 13-July-2020 | 19-July-2020 |
| Hall of Fame Open | 13-July-2020 | 19-July-2020 |
| Swedish Open | 13-July-2020 | 19-July-2020 |
| Los Cabos Open | 20-July-2020 | 25-July-2020 |
| Croatia Open | 20-July-2020 | 26-July-2020 |
| Swiss Open | 20-July-2020 | 26-July-2020 |
| Tokyo Olympics 2020 | 25-July-2020 | 2-August-2020 |
| Austrian Open Kitzbühel | 27-July-2020 | 1-August-2020 |
| Atlanta Open | 27-July-2020 | 2-August-2020 |
| Washington Open | 2-August-2020 | 9-August-2020 |
| Canadian Open | 10-August-2020 | 16-August-2020 |
| Cincinnati Masters | 16-August-2020 | 23-August-2020 |
| Winston-Salem Open | 23-August-2020 | 29-August-2020 |
| U.S. Open | 31-August-2020 | 13-September-2020 |
| St. Petersburg Open | 21 Septemebr 2020 | 27-September-2020 |
| Moselle Open | 21 Septemebr 2020 | 27-September-2020 |
| Laver Cup | 25-September-2020 | 27-September-2020 |
| Sofia Open | 28-September-2020 | 4-October-2020 |
| Chengdu Open | 28-September-2020 | 4-October-2020 |
| Zhuhai Championships | 28-September-2020 | 4-October-2020 |
| China Open | 5-October-2020 | 11-October-2020 |
| Japan Open | 5-October-2020 | 11-October-2020 |
| Shanghai Masters | 12-October-2020 | 18-October-2020 |
| Kremlin Cup | 19-October-2020 | 25-October-2020 |
| Stockholm Open | 19-October-2020 | 25-October-2020 |
| European Open | 19-October-2020 | 25-October-2020 |
| Vienna Open | 26-October-2020 | 1-November-2020 |
| Swiss Indoors | 26-October-2020 | 1-November-2020 |
| Paris Masters | 2-November-2020 | 9-November-2020 |
| Next Gen ATP Finals | 10-November-2020 | 14-November-2020 |
| ATP Finals | 15-November-2020 | 22-November-2020 |
| Davis Cup Finals | 23-November-2020 | 29-November-2020 |
| Tournaments | Start Date | End Date |
| Abierto GNP Seguros, Monterrey | 2-March-2020 | 8-March-2020 |
| Oracle Challenger Series | 2-March-2020 | 8-March-2020 |
| Open 6ème Sens – Métropole de Lyon | 2-March-2020 | 8-March-2020 |
| BNP Paribas Open | 11-March-2020 | 22-March-2020 |
| Abierto Zapopan 2020 | 16-March-2020 | 21-March-2020 |
| Miami Open | 24-March-2020 | 4-April-2020 |
| Copa Colsanitas | 6-April-2020 | 12-April-2020 |
| Volvo Car Open | 6-April-2020 | 12-April-2020 |
| Porsche Tennis Grand Prix | 20-April-2020 | 26-April-2020 |
| Istanbul Open | 20-April-2020 | 26-April-2020 |
| J&T Banka Prague Open | 27-April-2020 | 2-May-2020 |
| 2020 Kunming Open | 27-April-2020 | 3-May-2020 |
| Mutua Madrid Open | 2-May-2020 | 9-May-2020 |
| Internazionali BNL d'Italia | 11-May-2020 | 17-May-2020 |
| Internationaux de Strasbourg | 17-May-2020 | 23-May-2020 |
| Grand Prix De SAR La Princesse Lalla Meryem | 17-May-2020 | 23-May-2020 |
| French Open | 24-May-2020 | 6-June-2020 |
| Croatia Bol Open | 1-June-2020 | 6-June-2020 |
| Libema Open | 8-June-2020 | 14-June-2020 |
| Nature Valley Open | 8-June-2020 | 14-June-2020 |
| Nature Valley Classic | 15-June-2020 | 21-June-2020 |
| Grass Court Championships | 15-June-2020 | 21-June-2020 |
| Nature Valley International | 21-June-2020 | 27-June-2020 |
| Bad Homburg Open | 21-June-2020 | 27-June-2020 |
| Wimbledon | 29-June-2020 | 11-July-2020 |
| Mubadala Silicon Valley Classic | 3-August-2020 | 9-August-2020 |
| Citi Open | 3-August-2020 | 9-August-2020 |
| Rogers Cup presented by National Bank | 10-August-2020 | 16-August-2020 |
| Western & Southern Open | 17-August-2020 | 23-August-2020 |
| Albany Ope | 23-August-2020 | 29-August-2020 |
| 2020 US OPEN | 31-August-2020 | 12-September-2020 |
| BNP Paribas Warsaw Open | 7-September-2020 | 13-September-2020 |
| Jiangxi Open | 14-September-2020 | 20-September-2020 |
| Zhengzhou Open | 14-September-2020 | 20-September-2020 |
| Hana-cupid Japan Women's Open | 14-September-2020 | 20-September-2020 |
| Guangzhou Open | 21-September-2020 | 26-September-2020 |
| KEB Hana Bank Korea Open | 21-September-2020 | 27-September-2020 |
| Toray Pan Pacific Open | 21-September-2020 | 27-September-2020 |
| 2020 Dongfeng Motor Wuhan Open | 27-September-2020 | 3-October-2020 |
| Tashkent Open | 28-September-2020 | 3-October-2020 |
| China Open | 3-October-2020 | 11-October-2020 |
| TAIPEI OEC Open | 5-October-2020 | 11-October-2020 |
| Upper Austria Ladies Linz | 12-October-2020 | 18-October-2020 |
| Prudential Hong Kong Tennis Open | 12-October-2020 | 18-October-2020 |
| Tianjin Open | 12-October-2020 | 18-October-2020 |
| BGL BNP Paribas Luxembourg Open | 19-October-2020 | 25-October-2020 |
| VTB Kremlin Cup | 19-October-2020 | 25-October-2020 |
| Hengqin Life WTA Elite Trophy | 27-October-2020 | 1-November-2020 |
| Shiseido WTA Finals | 1-November-2020 | 8-November-2020 |
| Oracle Challenger Series | 15-November-2020 | 22-November-2020 |
| Open BLS De LIMOGES | 14- December-2020 | 20-December-2020 |
*Bold represents Grand Slams / Tennis Majors
