USA: W80 Tyler, TX - Doubles - Main |
| 1/8-finals | Ahn K./Broady N. | Doi M./Stojanovic N. | CAN. | details | 29.10.2020 |
USA: W80 Macon - Doubles - Main |
| Semi-finals | Di Lorenzo F./Loeb J. | Doi M./Stojanovic N. | 2:1 (1:6, 6:3, 10:8) | details | 23.10.2020 |
| Quarter-finals | Sharma A./Sherif M. | Doi M./Stojanovic N. | 1:2 (6:4, 611:7, 1:10) | details | 22.10.2020 |
| 1/8-finals | Minnen G./Vickery S. | Doi M./Stojanovic N. | 0:2 (3:6, 63:7) | details | 20.10.2020 |
France: French Open - Doubles - Main |
| 1/16-finals | Dabrowski G./Ostapenko J. | Doi M./Niculescu M. | 2:1 (6:4, 2:6, 7:5) | details | 02.10.2020 |
| 1/32-finals | Doi M./Niculescu M. | Bara Irina M./Stollar F. | 2:0 (6:4, 6:2) | details | 30.09.2020 |
Italy: Rome - Doubles - Main |
| 1/16-finals | Kato M./Santamaria S. | Doi M./Voracova R. | 2:1 (6:4, 3:6, 10:6) | details | 15.09.2020 |
USA: Indian Wells - Doubles - Main |
| Quarter-finals | Doi M./Siegemund L. | McNally C./Pegula J. | 1:2 (1:6, 6:3, 5:10) | details | 06.03.2020 |
| 1/8-finals | Duan Y./Hibino N. | Doi M./Siegemund L. | 0:2 (5:7, 0:6) | details | 02.03.2020 |
Australia: Australian Open - Doubles - Main |
| 1/8-finals | Chan H-C./Chan L. | Doi M./Niculescu M. | 2:0 (7:65, 6:4) | details | 27.01.2020 |
| 1/16-finals | Doi M./Niculescu M. | Hibino N./Ninomiya M. | 2:0 (6:2, 7:5) | details | 25.01.2020 |
| 1/32-finals | Doi M./Niculescu M. | Kalinskaya A./Putintseva Y. | 2:1 (65:7, 6:4, 6:2) | details | 22.01.2020 |
China: Shenzhen - Doubles - Main |
| Semi-finals | Doi M./Niculescu M. | Duan Y./Zheng S. | 1:2 (6:3, 3:6, 4:10) | details | 10.01.2020 |
| Quarter-finals | Mertens E./Sabalenka A. | Doi M./Niculescu M. | 0:2 (5:7, 4:6) | details | 08.01.2020 |
| 1/8-finals | Alexandrova E./Kalashnikova O. | Doi M./Niculescu M. | 0:2 (2:6, 2:6) | details | 06.01.2020 |
Luxembourg: Luxembourg - Doubles - Main |
| 1/8-finals | Gauff C./McNally C. | Doi M./Ninomiya M. | 2:1 (6:3, 65:7, 10:5) | details | 15.10.2019 |