| Challenger Ochsenhausen | 2021/04/01 12:30 | Sven Happek v Peter Hribar | L | 0-3 |
| Challenger Ochsenhausen | 2021/04/01 11:10 | Jiri Martinko v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/01 09:10 | Dillon Chambers v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/03/31 13:10 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/03/31 09:50 | Josip Huzjak v Sven Happek | W | 2-3 |
| Challenger Ochsenhausen | 2021/03/31 07:10 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/03/16 10:40 | Sven Happek v Jiri Martinko | L | 1-3 |
| Challenger Ochsenhausen | 2021/03/16 08:00 | Sven Happek v Evgueni Chtchetinine | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/07 11:30 | Florian Bluhm v Henning Zeptner | L | 3-2 |
| Challenger Ochsenhausen | 2021/05/07 10:45 | Carlos Muhlbach v Henning Zeptner | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/07 08:25 | Henning Zeptner v Florian Saljani | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/07 06:30 | Henning Zeptner v Michael Engelhardt | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/06 09:50 | Henning Zeptner v Carlo Rossi | W | 3-1 |
| Challenger Ochsenhausen | 2021/05/06 07:10 | Carlos Muhlbach v Henning Zeptner | L | 3-2 |
| Challenger Ochsenhausen | 2021/05/05 11:50 | Enio Mendes v Henning Zeptner | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/05 09:50 | Henning Zeptner v Florian Bluhm | L | 0-3 |