Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/05/04 14:30 | Damian Zech v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/04/06 11:50 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/02/02 12:50 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger Series TT | 2022/10/06 12:30 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/08/08 11:50 | Dennis Klein v Damian Zech | W | 3-1 |
| Challenger Series TT | 2022/08/01 09:50 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/07/28 15:10 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2022/06/20 07:50 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/06/20 13:30 | Dennis Klein v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/20 11:25 | Dennis Klein v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/20 09:50 | Dennis Klein v Jose Guillot | W | 3-0 |
| Challenger Series TT | 2023/06/20 06:30 | Dennis Klein v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/06/19 17:50 | Dennis Klein v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/06/19 16:30 | Dennis Klein v Aljaz Godec | W | 3-0 |
| Challenger Series TT | 2023/06/19 11:50 | Dennis Klein v Marco Stefanidis | W | 3-0 |
| Challenger Series TT | 2023/06/19 09:10 | Dennis Klein v Sven Happek | W | 3-1 |
| Challenger Series TT | 2023/05/23 09:50 | Jeromy Loffler v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/05/23 08:30 | Damian Zech v Kirill Fadeev | L | 0-3 |
| Challenger Series TT | 2023/05/22 18:30 | Louis Price v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/05/22 15:50 | Aljaz Godec v Damian Zech | W | 0-3 |
| Challenger Series TT | 2023/05/22 13:50 | Albert Vilardell v Damian Zech | L | 3-0 |
| Challenger Series TT | 2023/05/22 09:50 | Sven Happek v Damian Zech | W | 0-3 |
| Challenger Series TT | 2023/05/22 07:10 | Michael Engelhardt v Damian Zech | L | 3-1 |
| Challenger Series TT | 2023/05/16 09:10 | David Molnar v Damian Zech | L | 3-2 |