Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2025/05/01 07:00 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/04/17 10:30 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger Series TT | 2025/03/21 08:30 | Damian Zech v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2024/10/17 11:30 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/09/12 07:30 | Dennis Klein v Damian Zech | W | 3-1 |
| Challenger Series TT | 2024/07/22 12:30 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger Series TT | 2024/07/11 12:30 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger Series TT | 2024/07/08 14:30 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger Series TT | 2025/05/06 11:00 | Florian Bluhm v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/05/06 09:45 | Dennis Klein v Mauro Scharrer | W | 3-0 |
| Challenger Series TT | 2025/05/06 06:30 | Divyansh Srivastava v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2025/05/05 16:30 | Joon Shim v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2025/05/05 15:00 | Adrien Coton v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2025/05/05 13:30 | Dennis Klein v Mudit Dani | W | 3-0 |
| Challenger Series TT | 2025/05/05 11:30 | Dennis Klein v Florian Bluhm | L | 1-3 |
| Challenger Series TT | 2025/05/05 10:00 | Dennis Klein v Mauro Scharrer | W | 3-0 |
| Challenger Series TT | 2025/05/16 08:30 | Daniel Rinderer v Damian Zech | L | 3-0 |
| Challenger Series TT | 2025/05/15 17:00 | Marius Henninger v Damian Zech | L | 3-0 |
| Challenger Series TT | 2025/05/15 15:30 | Damian Zech v Alberto Lillo | L | 2-3 |
| Challenger Series TT | 2025/05/15 13:00 | Damian Zech v Kirill Fadeev | L | 1-3 |
| Challenger Series TT | 2025/05/15 11:30 | Alexander Sverdlik v Damian Zech | W | 0-3 |
| Challenger Series TT | 2025/05/15 09:30 | Matthias Danzer v Damian Zech | L | 3-0 |
| Challenger Series TT | 2025/05/15 07:30 | Frantisek Onderka v Damian Zech | L | 3-0 |
| Challenger Series TT | 2025/05/02 08:00 | Damian Zech v Dhairya Parmar | L | 2-3 |