| Challenger Ochsenhausen | 2021/03/23 08:40 | Andrey Semenov v Dennis Klein | W | 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 | 2021/04/08 11:10 | Dimitrije Levajac v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2021/04/08 09:10 | Evgueni Chtchetinine v Dennis Klein | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/07 13:10 | Jiri Martinko v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2021/04/07 09:50 | Carlos Muhlbach v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/03/23 12:00 | Andrey Semenov v Florian Bluhm | L | 0-3 |
| Challenger Ochsenhausen | 2021/03/23 08:40 | Andrey Semenov v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2021/03/22 19:40 | Andrey Semenov v Miguel Chamorro | W | 3-1 |
| Challenger Ochsenhausen | 2021/03/22 18:20 | Andrey Semenov v Francisco Sanchi | W | 3-2 |
| Challenger Ochsenhausen | 2021/03/22 12:50 | Andrey Semenov v Peter Hribar | W | 3-0 |
| Challenger Ochsenhausen | 2021/03/22 09:50 | Andrey Semenov v Evgueni Chtchetinine | L | 1-3 |
| Challenger Ochsenhausen | 2021/03/22 07:30 | Andrey Semenov v Fedor Kuzmin | L | 2-3 |
| Challenger Ochsenhausen | 2021/03/09 11:20 | Andrey Semenov v Nico Longhino | W | 3-1 |