| Challenger Series TT | 2022/11/10 07:30 | Michael Engelhardt v Jeromy Loffler | L | 0-3 |
| Challenger Series TT | 2022/08/09 10:30 | Michael Engelhardt v Josip Huzjak | L | 1-3 |
| Challenger Series TT | 2022/08/09 07:50 | Michael Engelhardt v Bastian Rembert | L | 0-3 |
| Challenger Series TT | 2022/08/08 19:10 | Michael Engelhardt v Anton Limonov | L | 0-3 |
| Challenger Series TT | 2022/08/08 14:30 | Michael Engelhardt v Damian Zech | W | 3-2 |
| Challenger Series TT | 2022/08/08 12:30 | Michael Engelhardt v Florian Bluhm | L | 0-3 |
| Challenger Series TT | 2022/08/08 09:10 | Dennis Klein v Michael Engelhardt | L | 3-0 |
| Challenger Series TT | 2022/08/08 07:10 | Michael Engelhardt v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2022/11/10 08:10 | Karl Zimmermann v Ahmed El-Mahdy | L | 0-3 |
| Challenger Series TT | 2022/10/11 10:30 | Karl Zimmermann v Liang Qiu | W | 3-1 |
| Challenger Series TT | 2022/10/11 07:50 | Karl Zimmermann v Andres Martinez | L | 1-3 |
| Challenger Series TT | 2022/10/10 19:10 | Karl Zimmermann v Patrik Juhasz | L | 0-3 |
| Challenger Series TT | 2022/10/10 14:30 | Karl Zimmermann v Carlos Muhlbach | L | 1-3 |
| Challenger Series TT | 2022/10/10 12:30 | Karl Zimmermann v Sven Happek | L | 0-3 |
| Challenger Series TT | 2022/10/10 09:10 | Florian Bluhm v Karl Zimmermann | L | 3-0 |
| Challenger Series TT | 2022/10/10 07:10 | Karl Zimmermann v Kirill Fadeev | L | 2-3 |