| 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 | 2021/02/23 10:00 | Dennis Klein v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/01/26 11:20 | Dennis Klein v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/04/12 15:20 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 12:30 | Dennis Klein v Marius Henninger | W | 3-0 |
| Challenger Ochsenhausen | 2021/04/12 09:10 | Florian Bluhm v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/12 07:10 | Dennis Klein v Andrey Semenov | L | 1-3 |
| Challenger Ochsenhausen | 2021/04/09 13:30 | Jiri Martinko v Dennis Klein | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/09 12:05 | Dauud Cheaib v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/04/09 10:30 | Miguel Chamorro v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/08 12:30 | Dennis Klein v Dillon Chambers | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 17:20 | Florian Bluhm v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/04/12 14:40 | Evgueni Chtchetinine v Andrey Semenov | L | 2-3 |
| Challenger Ochsenhausen | 2021/04/12 10:30 | Evgueni Chtchetinine v Miguel Chamorro | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/12 08:30 | Evgueni Chtchetinine v Josip Huzjak | W | 3-1 |
| Challenger Ochsenhausen | 2021/04/09 09:10 | Carlos Muhlbach v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/09 07:10 | Dauud Cheaib v Evgueni Chtchetinine | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/08 11:50 | Miguel Chamorro v Evgueni Chtchetinine | W | 0-3 |
| Challenger Ochsenhausen | 2021/04/08 09:10 | Evgueni Chtchetinine v Dennis Klein | W | 3-1 |