| Challenger Ochsenhausen | 2021/05/10 11:50 | Dennis Klein v Michael Engelhardt | L | 3-2 |
| Challenger Ochsenhausen | 2021/06/09 12:30 | Michael Engelhardt v Lars Brinkhaus | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/09 09:10 | Johannes Schnabel v Michael Engelhardt | W | 1-3 |
| Challenger Ochsenhausen | 2021/06/09 07:10 | Michael Engelhardt v Carlos Muhlbach | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/11 10:20 | Michael Engelhardt v Carlo Rossi | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/11 07:00 | Michael Engelhardt v Fedor Kuzmin | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 18:00 | Michael Engelhardt v Florian Bluhm | L | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 15:20 | Juri Grauer v Michael Engelhardt | W | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 11:50 | Dennis Klein v Michael Engelhardt | L | 3-2 |
| 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 | 2021/06/04 07:10 | Dennis Klein v Dauud Cheaib | L | 2-3 |
| Challenger Ochsenhausen | 2021/06/03 10:30 | Dennis Klein v Dillon Chambers | W | 3-0 |