Estádio: Roy Emerson Arena Round: 29 Ground: Clay
| ATP - Gstaad - Duplas Masculinas | 2021/07/24 13:00 | Paire/Rinderknech v Huesler/Stricker | 4-6,6-4,12-14 |
| ATP - Gstaad - Duplas Masculinas | 2021/07/22 11:00 | Delbonis/Duran v Huesler/Stricker | 1-6,4-6 |
| ATP - Gstaad - Duplas Masculinas | 2021/07/21 10:30 | Arneodo/Olivetti v Huesler/Stricker | 4-6,4-6 |
| ATP - Génova - Duplas Masculinas | 2021/05/20 16:15 | Huesler/Stricker v Peers/Venus | 3-6,6-1,9-11 |
| ATP - Génova - Duplas Masculinas | 2021/05/18 15:30 | Huesler/Stricker v Monroe/Paire | 7-6,6-1 |
| ATP - Gstaad - Duplas Masculinas | 2021/07/23 10:45 | Paul/Riedi v Walkow/Zielinski | 6-4,6-7,2-10 |
| ATP - Gstaad - Duplas Masculinas | 2021/07/22 09:00 | Walkow/Zielinski v Brown/Weissborn | 6-4,6-7,10-7 |
| Challenger - Brunsvique - Duplas Masculinas | 2021/07/10 11:30 | Sabanov/Sabanov v Walkow/Zielinski | 4-6,6-4,4-10 |
| Challenger - Brunsvique - Duplas Masculinas | 2021/07/08 14:50 | Duran/Sandkaulen v Walkow/Zielinski | 5-7,4-6 |
| Challenger - Brunsvique - Duplas Masculinas | 2021/07/07 11:35 | Walkow/Zielinski v Cerretani/Zelenay | 6-3,6-4 |
| Challenger - Milão - Duplas Masculinas | 2021/06/25 16:25 | Brown/Weissborn v Walkow/Zielinski | 7-5,6-4 |
| Challenger - Milão - Duplas Masculinas | 2021/06/24 13:00 | Bonadio/Gabashvili v Walkow/Zielinski | 2-6,1-6 |
| Challenger - Milão - Duplas Masculinas | 2021/06/23 15:00 | Brancaccio/Zeppieri v Walkow/Zielinski | 6-7,4-6 |