| Challenger Ochsenhausen | 2021/07/30 09:10 | Dennis Klein v Evgueni Chtchetinine | L | 3-1 |
| Challenger Ochsenhausen | 2021/07/14 11:10 | Evgueni Chtchetinine v Dennis Klein | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/04 09:50 | Dennis Klein v Evgueni Chtchetinine | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/19 15:20 | Evgueni Chtchetinine v Dennis Klein | L | 2-3 |
| Challenger Ochsenhausen | 2021/04/13 13:00 | Dennis Klein v Evgueni Chtchetinine | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 20:00 | Dennis Klein v Evgueni Chtchetinine | L | 3-2 |
| Challenger Ochsenhausen | 2021/04/08 09:10 | Evgueni Chtchetinine v Dennis Klein | W | 3-1 |
| Challenger Ochsenhausen | 2021/03/23 12:40 | Evgueni Chtchetinine v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2021/11/05 11:30 | Eduardo Gonzales v Evgueni Chtchetinine | L | 3-1 |
| Challenger Ochsenhausen | 2021/11/04 13:30 | Evgueni Chtchetinine v Javier Benito | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/04 12:10 | Amirreza Abbasi v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/04 10:10 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/03 14:10 | Jonathan Thimon v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/11/03 10:50 | Amir Hossein Hodaei v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/11/03 08:10 | Miguel Chamorro v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/10/15 09:50 | Evgueni Chtchetinine v Sven Happek | L | 1-3 |
| Challenger Ochsenhausen | 2021/11/02 13:10 | Dennis Klein v Simon Berglund | W | 3-2 |
| Challenger Ochsenhausen | 2021/11/02 12:30 | Dennis Klein v Amirreza Abbasi | L | 0-3 |
| Challenger Ochsenhausen | 2021/11/02 10:00 | Dennis Klein v Guilherme Teodoro | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/02 08:15 | Dennis Klein v Josip Huzjak | L | 2-3 |
| Challenger Ochsenhausen | 2021/11/01 10:10 | Dennis Klein v Javier Benito | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/01 07:30 | Dennis Klein v Liang Qiu | W | 3-2 |
| Challenger Ochsenhausen | 2021/10/11 15:20 | Dennis Klein v Amirreza Abbasi | L | 2-3 |
| Challenger Ochsenhausen | 2021/10/11 12:30 | Dennis Klein v Andriy Sitak | W | 3-1 |