| Challenger Ochsenhausen | 2021/03/16 08:00 | Sven Happek v Evgueni Chtchetinine | W | 3-0 |
| Challenger Ochsenhausen | 2021/03/12 13:50 | Sven Happek v Evgueni Chtchetinine | L | 0-3 |
| Challenger Ochsenhausen | 2021/03/12 07:30 | Sven Happek v Evgueni Chtchetinine | L | 2-3 |
| Challenger Ochsenhausen | 2021/02/10 10:10 | Sven Happek v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2020/11/20 10:50 | Sven Happek v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2020/10/22 11:50 | Sven Happek v Evgueni Chtchetinine | L | 0-3 |
| Challenger Ochsenhausen | 2020/07/20 14:00 | Evgueni Chtchetinine v Sven Happek | W | 2-3 |
| Challenger Ochsenhausen | 2020/07/01 09:50 | Evgueni Chtchetinine v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/07 11:00 | Sven Happek v Snehit Suravajjula | L | 0-3 |
| Challenger Ochsenhausen | 2021/07/07 09:45 | Sven Happek v Dwain Schwarzer | W | 3-2 |
| Challenger Ochsenhausen | 2021/06/18 12:50 | Sven Happek v Harmeet Desai | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/18 11:25 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/06/18 09:50 | Sven Happek v Fedor Kuzmin | L | 2-3 |
| Challenger Ochsenhausen | 2021/06/18 07:10 | Sven Happek v Harmeet Desai | L | 1-3 |
| Challenger Ochsenhausen | 2021/06/17 10:30 | Sven Happek v Miguel Chamorro | L | 2-3 |
| Challenger Ochsenhausen | 2021/06/17 07:10 | Sven Happek v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2021/07/07 10:35 | Jeet Chandra v Evgueni Chtchetinine | W | 1-3 |
| Challenger Ochsenhausen | 2021/07/07 08:55 | Fedor Kuzmin v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/04 09:50 | Dennis Klein v Evgueni Chtchetinine | L | 3-1 |
| Challenger Ochsenhausen | 2021/06/04 07:50 | Christopher Ligocki v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/03 11:10 | Evgueni Chtchetinine v Fedor Kuzmin | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/03 07:50 | Evgueni Chtchetinine v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/03 06:30 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/02 10:30 | Dillon Chambers v Evgueni Chtchetinine | W | 1-3 |