| Challenger Series TT | 2022/07/29 08:30 | Michael Engelhardt v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2022/07/11 11:10 | Michael Engelhardt v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2022/06/16 06:30 | Michael Engelhardt v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/07/28 11:50 | Michael Engelhardt v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/07/26 18:00 | Michael Engelhardt v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/10 07:10 | Michael Engelhardt v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/05/10 11:50 | Dennis Klein v Michael Engelhardt | W | 3-2 |
| Challenger Series TT | 2022/08/01 18:30 | Jean Rassouw v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/08/01 15:50 | Krisztian Katus v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/08/01 13:50 | Yannick Vostes v Dennis Klein | L | 3-0 |
| Challenger Series TT | 2022/08/01 09:50 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/08/01 07:10 | Carlos Muhlbach v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2022/07/29 12:50 | Liang Qiu v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/07/29 12:05 | Dennis Klein v Elia Schmid | L | 0-3 |
| Challenger Series TT | 2022/07/29 08:30 | Michael Engelhardt v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2022/08/02 07:10 | Yannick Vostes v Michael Engelhardt | L | 3-0 |
| Challenger Series TT | 2022/08/01 17:10 | Damian Zech v Michael Engelhardt | L | 3-0 |
| Challenger Series TT | 2022/08/01 15:10 | Jean Rassouw v Michael Engelhardt | W | 0-3 |
| Challenger Series TT | 2022/08/01 12:30 | Carlos Muhlbach v Michael Engelhardt | L | 3-0 |
| Challenger Series TT | 2022/08/01 11:10 | Krisztian Katus v Michael Engelhardt | W | 0-3 |
| Challenger Series TT | 2022/08/01 06:30 | Michael Fuchs v Michael Engelhardt | W | 1-3 |
| Challenger Series TT | 2022/07/29 09:50 | Kirill Fadeev v Michael Engelhardt | L | 3-0 |
| Challenger Series TT | 2022/07/29 08:30 | Michael Engelhardt v Dennis Klein | W | 3-2 |