| Challenger Ochsenhausen | 2021/09/30 08:30 | Sven Happek v Evgueni Chtchetinine | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/16 11:40 | Sven Happek v Evgueni Chtchetinine | W | 1-3 |
| Challenger Ochsenhausen | 2021/07/15 10:30 | Sven Happek v Evgueni Chtchetinine | W | 2-3 |
| Challenger Ochsenhausen | 2021/07/07 13:10 | Sven Happek v Evgueni Chtchetinine | W | 2-3 |
| Challenger Ochsenhausen | 2021/03/16 08:00 | Sven Happek v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/03/12 13:50 | Sven Happek v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/03/12 07:30 | Sven Happek v Evgueni Chtchetinine | W | 2-3 |
| Challenger Ochsenhausen | 2021/02/10 10:10 | Sven Happek v Evgueni Chtchetinine | L | 3-1 |
| Challenger Ochsenhausen | 2021/10/15 07:10 | Evgueni Chtchetinine v Amirreza Abbasi | W | 3-1 |
| Challenger Ochsenhausen | 2021/10/14 10:30 | Evgueni Chtchetinine v Andrei Putuntica | W | 3-2 |
| Challenger Ochsenhausen | 2021/10/14 07:10 | Evgueni Chtchetinine v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/10/13 12:30 | Evgueni Chtchetinine v Andriy Sitak | L | 2-3 |
| Challenger Ochsenhausen | 2021/10/13 09:10 | Alexander Valuch v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/10/13 07:10 | Evgueni Chtchetinine v Cedric Tschanz | L | 1-3 |
| Challenger Ochsenhausen | 2021/10/05 14:00 | Evgueni Chtchetinine v Andrey Semenov | L | 1-3 |
| Challenger Ochsenhausen | 2021/10/05 12:35 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-1 |
| 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 | 2021/10/01 07:50 | Sven Happek v Dauud Cheaib | L | 0-3 |