| Challenger Ochsenhausen | 2021/07/07 13:10 | Sven Happek v Evgueni Chtchetinine | L | 2-3 |
| 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 | 2021/07/14 11:50 | Sven Happek v Josip Huzjak | W | 3-1 |
| Challenger Ochsenhausen | 2021/07/14 09:10 | Sven Happek v Dauud Cheaib | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/14 06:30 | Sven Happek v Dennis Klein | W | 3-2 |
| Challenger Ochsenhausen | 2021/07/09 08:30 | Sven Happek v Valerij Rakov | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/09 06:30 | Jeet Chandra v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 10:30 | Fedor Kuzmin v Sven Happek | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 08:30 | Andriy Sitak v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/07 13:10 | Sven Happek v Evgueni Chtchetinine | L | 2-3 |
| Challenger Ochsenhausen | 2021/07/15 08:30 | Evgueni Chtchetinine v Andrei Putuntica | L | 1-3 |
| Challenger Ochsenhausen | 2021/07/15 06:30 | Evgueni Chtchetinine v Alexander Valuch | W | 3-1 |
| Challenger Ochsenhausen | 2021/07/14 11:10 | Evgueni Chtchetinine v Dennis Klein | W | 3-0 |
| Challenger Ochsenhausen | 2021/07/14 08:30 | Mathieu De Saintilan v Evgueni Chtchetinine | W | 2-3 |
| Challenger Ochsenhausen | 2021/07/09 13:30 | Evgueni Chtchetinine v Snehit Suravajjula | W | 3-1 |
| Challenger Ochsenhausen | 2021/07/09 11:25 | Fedor Kuzmin v Evgueni Chtchetinine | W | 1-3 |
| Challenger Ochsenhausen | 2021/07/09 10:30 | Andriy Sitak v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/07/08 12:30 | Evgueni Chtchetinine v Valerij Rakov | L | 1-3 |