| Challenger Ochsenhausen | 2021/06/11 07:10 | Michael Engelhardt v Miguel Chamorro | L | 1-3 |
| Challenger Ochsenhausen | 2021/06/10 10:30 | Michael Engelhardt v Andrey Semenov | W | 3-2 |
| Challenger Ochsenhausen | 2021/06/10 07:10 | Michael Engelhardt v Dennis Klein | L | 0-3 |
| 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 | 2021/06/11 07:50 | Johannes Schnabel v Dillon Chambers | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/10 11:10 | Dillon Chambers v Carlos Muhlbach | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/10 07:50 | Dillon Chambers v Lars Brinkhaus | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/10 06:30 | Miguel Chamorro v Dillon Chambers | W | 2-3 |
| Challenger Ochsenhausen | 2021/06/09 10:30 | Andrey Semenov v Dillon Chambers | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/09 07:50 | Dennis Klein v Dillon Chambers | L | 3-0 |
| Challenger Series TT | 2021/06/04 12:50 | Dillon Chambers v Peter Hribar | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/04 11:25 | Dauud Cheaib v Dillon Chambers | L | 3-0 |