| Challenger Ochsenhausen | 2021/10/15 09:50 | Evgueni Chtchetinine v Sven Happek | W | 1-3 |
| Challenger Ochsenhausen | 2021/10/15 07:50 | Alexander Valuch v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/10/14 11:10 | Sven Happek v Cedric Tschanz | W | 3-0 |
| Challenger Ochsenhausen | 2021/10/14 07:50 | Sven Happek v Andriy Sitak | L | 0-3 |
| Challenger Ochsenhausen | 2021/10/14 06:30 | Amirreza Abbasi v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/10/13 10:30 | Andrei Putuntica v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/10/13 07:50 | Dauud Cheaib v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/10/01 10:30 | Sven Happek v Miguel Chamorro | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/24 11:00 | Daniel Rinderer v Dauud Cheaib | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/24 07:40 | Daniel Rinderer v Amirreza Abbasi | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/23 18:40 | Daniel Rinderer v Paul Lavergne | L | 2-3 |
| Challenger Ochsenhausen | 2021/08/23 17:20 | Daniel Rinderer v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 11:50 | Daniel Rinderer v Elia Schmid | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 09:10 | Daniel Rinderer v Josip Huzjak | L | 1-3 |
| Challenger Ochsenhausen | 2021/08/23 06:30 | Daniel Rinderer v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2021/08/10 11:00 | Daniel Rinderer v Dauud Cheaib | L | 0-3 |