| Challenger Ochsenhausen | 2021/04/12 07:10 | Dennis Klein v Andrey Semenov | L | 1-3 |
| Challenger Ochsenhausen | 2021/03/23 08:40 | Andrey Semenov v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/06/10 09:50 | Dennis Klein v Lars Brinkhaus | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/10 07:10 | Michael Engelhardt v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/09 11:50 | Johannes Schnabel v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/09 09:50 | Dennis Klein v Carlos Muhlbach | W | 3-2 |
| Challenger Ochsenhausen | 2021/06/09 07:50 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/04 13:30 | Dauud Cheaib v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/04 12:05 | Peter Hribar v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/06/04 09:50 | Dennis Klein v Evgueni Chtchetinine | W | 3-1 |
| Challenger Ochsenhausen | 2021/06/10 10:30 | Michael Engelhardt v Andrey Semenov | L | 3-2 |
| Challenger Ochsenhausen | 2021/06/10 08:30 | Johannes Schnabel v Andrey Semenov | W | 1-3 |
| Challenger Ochsenhausen | 2021/06/09 13:10 | Andrey Semenov v Carlos Muhlbach | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/09 10:30 | Andrey Semenov v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/09 08:30 | Andrey Semenov v Miguel Chamorro | L | 1-3 |
| Challenger Ochsenhausen | 2021/06/08 09:00 | Florian Bluhm v Andrey Semenov | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/08 07:00 | Lars Brinkhaus v Andrey Semenov | W | 2-3 |
| Challenger Ochsenhausen | 2021/06/07 18:40 | Felix Wetzel v Andrey Semenov | L | 3-0 |