Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/03/09 18:10 | Damian Zech v Samuel Amann | W | 3-2 |
| Challenger Series TT | 2023/03/02 13:30 | Samuel Amann v Damian Zech | W | 0-3 |
| Challenger Series TT | 2023/01/30 18:10 | Damian Zech v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2022/08/26 08:30 | Damian Zech v Samuel Amann | L | 2-3 |
| Challenger Series TT | 2022/08/08 09:50 | Damian Zech v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2022/06/27 11:50 | Samuel Amann v Damian Zech | W | 1-3 |
| Challenger Ochsenhausen | 2022/01/20 07:30 | Samuel Amann v Damian Zech | W | 0-3 |
| Challenger Series TT | 2023/07/10 09:10 | Johannes Willeke v Damian Zech | W | 1-3 |
| Challenger Series TT | 2023/07/10 07:10 | Damian Zech v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/06/27 09:10 | Damian Zech v Carlo Rossi | L | 1-3 |
| Challenger Series TT | 2023/06/26 19:50 | Damian Zech v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/26 17:10 | Damian Zech v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/06/26 14:30 | Makoto Nogami v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/06/26 11:50 | Marius Henninger v Damian Zech | W | 2-3 |
| Challenger Series TT | 2023/06/26 09:50 | Damian Zech v Sven Happek | L | 2-3 |
| Challenger Series TT | 2023/07/10 11:10 | Kestutis Zeimys v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/07/10 06:30 | Johannes Willeke v Samuel Amann | L | 3-1 |
| Challenger Series TT | 2023/06/23 09:50 | Tobias Slanina v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/06/23 08:30 | Samuel Amann v Johannes Willeke | L | 0-3 |
| Challenger Series TT | 2023/06/22 18:30 | Ihor Zavadskyi v Samuel Amann | W | 1-3 |
| Challenger Series TT | 2023/06/22 15:50 | Dauud Cheaib v Samuel Amann | L | 3-1 |
| Challenger Series TT | 2023/06/22 13:50 | Carlo Rossi v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/06/22 09:50 | Sven Happek v Samuel Amann | L | 3-0 |