| Challenger Series TT | 2022/08/02 08:30 | Dennis Klein v Michael Engelhardt | W | 3-0 |
| 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 | 2022/08/08 06:30 | Dennis Klein v Florian Bluhm | L | 2-3 |
| Challenger Series TT | 2022/08/02 13:30 | Yannick Vostes v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2022/08/02 12:05 | Dennis Klein v Carlos Muhlbach | W | 3-0 |
| Challenger Series TT | 2022/08/02 09:50 | Michael Fuchs v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/08/02 08:30 | Dennis Klein v Michael Engelhardt | W | 3-0 |
| 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 | 2022/08/08 07:10 | Michael Engelhardt v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2022/08/05 13:30 | Michael Engelhardt v Daniel Rinderer | L | 0-3 |
| Challenger Series TT | 2022/08/05 11:25 | Anton Limonov v Michael Engelhardt | W | 0-3 |
| Challenger Series TT | 2022/08/05 09:10 | Michael Engelhardt v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2022/08/04 19:50 | Michael Engelhardt v Krisztian Katus | W | 3-1 |
| Challenger Series TT | 2022/08/04 17:10 | Michael Engelhardt v Makoto Nogami | W | 3-1 |
| Challenger Series TT | 2022/08/04 14:30 | Marius Henninger v Michael Engelhardt | W | 1-3 |
| Challenger Series TT | 2022/08/04 11:50 | Daniel Rinderer v Michael Engelhardt | L | 3-2 |