| 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 | 2023/01/30 15:30 | Makoto Nogami v Damian Zech | L | 3-2 |
| Challenger Series TT | 2023/01/30 12:50 | Florian Bluhm v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/01/30 10:50 | Damian Zech v Guilherme Teodoro | L | 0-3 |
| Challenger Series TT | 2023/01/30 08:50 | Damian Zech v Nikola Grujic | L | 0-3 |
| Challenger Series TT | 2023/01/13 10:50 | Damian Zech v Jean Rassouw | L | 2-3 |
| Challenger Series TT | 2023/01/13 07:30 | Damian Zech v Bohdan Sinkevych | L | 1-3 |
| Challenger Series TT | 2023/01/12 18:50 | Damian Zech v Aljaz Godec | L | 1-3 |
| Challenger Series TT | 2023/01/12 17:30 | Damian Zech v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/01/30 16:10 | Nikola Grujic v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/01/30 13:30 | Makoto Nogami v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/01/30 12:10 | Josip Huzjak v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/01/30 07:30 | Florian Bluhm v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/01/06 10:10 | Kirill Fadeev v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2023/01/06 08:10 | Samuel Amann v Marius Henninger | L | 0-3 |
| Challenger Series TT | 2023/01/05 20:10 | David Kumpel v Samuel Amann | W | 2-3 |
| Challenger Series TT | 2023/01/05 17:30 | Daniel Rinderer v Samuel Amann | L | 3-1 |