| Challenger Ochsenhausen | 2021/07/30 09:10 | Dennis Klein v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2021/07/14 11:10 | Evgueni Chtchetinine v Dennis Klein | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/04 09:50 | Dennis Klein v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/19 15:20 | Evgueni Chtchetinine v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2021/04/13 13:00 | Dennis Klein v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 20:00 | Dennis Klein v Evgueni Chtchetinine | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/08 09:10 | Evgueni Chtchetinine v Dennis Klein | L | 3-1 |
| Challenger Ochsenhausen | 2021/03/23 12:40 | Evgueni Chtchetinine v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/11/15 15:00 | Dennis Klein v Sudhanshu Grover | W | 3-1 |
| Challenger Ochsenhausen | 2021/11/15 12:10 | Dennis Klein v Miguel Chamorro | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/15 09:30 | Dauud Cheaib v Dennis Klein | L | 3-1 |
| 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 | 2021/11/15 15:40 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/15 10:50 | Andrei Putuntica v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/15 08:10 | Adam Klajber v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/11/12 10:10 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/11 11:30 | Evgueni Chtchetinine v Simon Berglund | L | 0-3 |
| Challenger Ochsenhausen | 2021/11/11 08:50 | Evgueni Chtchetinine v Sven Happek | L | 2-3 |
| Challenger Ochsenhausen | 2021/11/11 07:30 | Florian Bourrassaud v Evgueni Chtchetinine | L | 3-2 |
| Challenger Ochsenhausen | 2021/11/10 11:30 | Alexander Valuch v Evgueni Chtchetinine | W | 0-3 |