Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/02/03 12:25 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/02/03 07:30 | Dennis Klein v Dillon Chambers | W | 3-2 |
| Challenger Series TT | 2022/10/31 12:10 | Dillon Chambers v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/09/01 17:50 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger de Ochsenhausen | 2022/05/26 11:50 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger de Ochsenhausen | 2022/05/13 07:50 | Dennis Klein v Dillon Chambers | W | 3-1 |
| Challenger de Ochsenhausen | 2022/03/24 17:30 | Dennis Klein v Dillon Chambers | W | 3-1 |
| Challenger de Ochsenhausen | 2021/08/10 11:40 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/03/27 07:50 | Dennis Klein v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/03/07 14:30 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/03/07 12:25 | Dennis Klein v Peter Hribar | W | 3-1 |
| Challenger Series TT | 2023/03/07 10:50 | Aljaz Godec v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/03/07 09:30 | Dennis Klein v Peter Hribar | L | 2-3 |
| Challenger Series TT | 2023/03/06 19:30 | Sven Happek v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/03/06 16:50 | Dauud Cheaib v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/06 14:50 | Bastien Dupont v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/27 07:10 | Makoto Nogami v Dillon Chambers | L | 3-0 |
| Challenger Series TT | 2023/03/10 11:30 | Karl Zimmermann v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/03/10 07:30 | Kirill Fadeev v Dillon Chambers | L | 3-0 |
| Challenger Series TT | 2023/03/09 19:30 | Dillon Chambers v Dimitrije Levajac | W | 3-0 |
| Challenger Series TT | 2023/03/09 16:10 | Dillon Chambers v Samuel Amann | W | 3-2 |
| Challenger Series TT | 2023/03/09 14:10 | Guilherme Teodoro v Dillon Chambers | L | 3-2 |
| Challenger Series TT | 2023/03/09 11:30 | Thibault Poret v Dillon Chambers | L | 3-1 |
| Challenger Series TT | 2023/03/09 08:50 | Damian Zech v Dillon Chambers | W | 1-3 |