 Switzerland: Gstaad - Doubles - Main |
|---|
| Quarter-finals | Walkow S./Zielinski J. | Brown D./Weissborn S. | 2:1 (6:4, 67:7, 10:7) | details | 22.07.2021 |
| 1/8-finals | Brown D./Weissborn S. | Behar A./Escobar G. | 2:1 (6:4, 3:6, 10:7) | details | 20.07.2021 |
 Netherlands: Amersfoort - Doubles - Main |
|---|
| Semi-finals | Castelnuovo L./Guinard M. | Brown D./Weissborn S. | 2:0 (6:4, 6:3) | details | 16.07.2021 |
| Quarter-finals | Kestelboim M./Mena F. | Brown D./Weissborn S. | 0:2 (3:6, 2:6) | details | 16.07.2021 |
| 1/8-finals | Vatutin A./Vrbensky M. | Brown D./Weissborn S. | 0:2 (4:6, 3:6) | details | 14.07.2021 |
 Austria: Salzburg - Doubles - Main |
|---|
| 1/8-finals | Cerundolo F./Coria F. | Brown D./Weissborn S. | 2:1 (6:3, 0:6, 11:9) | details | 07.07.2021 |
 Italy: Milan - Doubles - Main |
|---|
| Final | Brown D./Weissborn S. | Kopriva V./Lehecka J. | 0:2 (4:6, 0:6) | details | 26.06.2021 |
| Semi-finals | Brown D./Weissborn S. | Walkow S./Zielinski J. | 2:0 (7:5, 6:4) | details | 25.06.2021 |
| Quarter-finals | Brown D./Weissborn S. | Cachin P./Ugo Carabelli C. | 2:0 (6:4, 6:2) | details | 24.06.2021 |
| 1/8-finals | Martinez L. D./Matos R. | Brown D./Weissborn S. | 1:2 (6:4, 4:6, 8:10) | details | 22.06.2021 |
 Portugal: Oeiras 4 - Doubles - Main |
|---|
| Quarter-finals | Brown D./Weissborn S. | De Jong J./van Rijthoven T. | 1:2 (6:4, 1:6, 10:12) | details | 26.05.2021 |
| 1/8-finals | Brown D./Weissborn S. | Galdos S./Zeballos F. | 2:0 (6:4, 6:1) | details | 25.05.2021 |
