Stadium: Roy Emerson Arena Round: 29 Ground: Clay
| ATP Gstaad MD | 2021/07/24 13:00 | Paire/Rinderknech v Huesler/Stricker | 4-6,6-4,12-14 |
| ATP Gstaad MD | 2021/07/22 11:00 | Delbonis F / Duran G v Huesler/Stricker | 1-6,4-6 |
| ATP Gstaad MD | 2021/07/21 10:30 | Arneodo/Olivetti v Huesler/Stricker | 4-6,4-6 |
| ATP - Genève - Doubles Hommes | 2021/05/20 16:15 | Huesler/Stricker v Peers J / Venus M | 3-6,6-1,9-11 |
| ATP - Genève - Doubles Hommes | 2021/05/18 15:30 | Huesler/Stricker v Monroe N / Paire B | 7-6,6-1 |
| ATP Gstaad MD | 2021/07/23 10:45 | Paul/Riedi v Walkow S / Zielinski J | 6-4,6-7,2-10 |
| ATP Gstaad MD | 2021/07/22 09:00 | Walkow S / Zielinski J v Brown/Weissborn | 6-4,6-7,10-7 |
| Challenger Braunschweig MD | 2021/07/10 11:30 | Sabanov/Sabanov v Walkow S / Zielinski J | 4-6,6-4,4-10 |
| Challenger Braunschweig MD | 2021/07/08 14:50 | Duran/Sandkaulen v Walkow S / Zielinski J | 5-7,4-6 |
| Challenger Braunschweig MD | 2021/07/07 11:35 | Walkow S / Zielinski J v Cerretani/Zelenay | 6-3,6-4 |
| Challenger Milan MD | 2021/06/25 16:25 | Brown/Weissborn v Walkow S / Zielinski J | 7-5,6-4 |
| Challenger Milan MD | 2021/06/24 13:00 | Bonadio/Gabashvili v Walkow S / Zielinski J | 2-6,1-6 |
| Challenger Milan MD | 2021/06/23 15:00 | Brancaccio R / Zeppieri G v Walkow S / Zielinski J | 6-7,4-6 |