 USA: World TeamTennis - Doubles - Main |
|---|
| | Mattek-Sands B./Bouchard E. | Pegula J./Collins D. R. | 1:0 (5:3) | details | 19.07.2020 |
| | Lisicki S./Peschke K. | Collins D. R./Pegula J. | 0:1 (44:5) | details | 17.07.2020 |
| USA: Credit One Bank Invitational - Doubles - Main |
|---|
| | Collins D. R./Navarro E. | Fernandez L. A./Puig M. | 1:2 (6:2, 4:6, 9:11) | details | 29.06.2020 |
| | Bouchard E./Collins D. R. | Stephens S./Anisimova A. | 1:2 (6:4, 65:7, 7:10) | details | 25.06.2020 |
 Australia: Australian Open - Doubles - Main |
|---|
| 1/16-finals | Collins D. R./Rosolska A. | Aoyama S./Shibahara E. | WO. | details | 24.01.2020 |
| 1/32-finals | Collins D. R./Rosolska A. | Kozlova Kat./Linette M. | 2:1 (5:7, 7:5, 6:0) | details | 22.01.2020 |
| Australia: Adelaide - Doubles - Main |
|---|
| 1/8-finals | Melichar N./Xu Y. | Collins D. R./Rosolska A. | 2:0 (7:5, 6:1) | details | 14.01.2020 |
| USA: Hawaii Open - Mixed Doubles - Main |
|---|
| Final | Collins D. R./Harrison C. | Wickmayer Y./Querrey S. | 2:1 (6:4, 66:7, 10:6) | details | 29.12.2019 |
| USA: US Open - Doubles - Main |
|---|
| 1/8-finals | Kuzmova V./Sasnovich A. | Collins D. R./Perez E. | 2:1 (7:64, 5:7, 7:5) | details | 01.09.2019 |
| USA: US Open - Mixed Doubles - Main |
|---|
| 1/16-finals | Collins D. R./Monroe N. | Carter H./Withrow J. | 0:2 (2:6, 2:6) | details | 01.09.2019 |
| USA: US Open - Doubles - Main |
|---|
| 1/16-finals | Aoyama S./Krunic A. | Collins D. R./Perez E. | 0:2 (61:7, 2:6) | details | 31.08.2019 |
| 1/32-finals | Collins D. R./Perez E. | Stosur S./Zhang S. | 2:1 (1:6, 6:4, 6:4) | details | 31.08.2019 |
France: French Open - Singles - Main
World: UTR Pro Match Series - Singles - Main
China: Beijing - Singles - Main