Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/11/14 14:30 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/11/13 18:50 | Dennis Klein v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/10/17 11:25 | Dauud Cheaib v Dennis Klein | L | 2-3 |
| Challenger Series TT | 2023/10/16 09:10 | Dennis Klein v Dauud Cheaib | W | 2-3 |
| Challenger Series TT | 2023/09/08 12:50 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/09/07 16:30 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2023/07/06 07:50 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2023/06/23 13:30 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/12/05 13:50 | Dauud Cheaib v Corentin Mazaud | W | 3-0 |
| Challenger Series TT | 2023/12/05 12:25 | Dauud Cheaib v Carlo Rossi | L | 2-3 |
| Challenger Series TT | 2023/12/05 10:10 | Dauud Cheaib v Daniel Rinderer | W | 3-1 |
| Challenger Series TT | 2023/12/04 20:50 | Dauud Cheaib v Damian Zech | W | 3-1 |
| Challenger Series TT | 2023/12/04 18:10 | Dauud Cheaib v Rafael Turrini | L | 2-3 |
| Challenger Series TT | 2023/12/04 15:30 | Alexander Valuch v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/12/04 12:50 | Carlo Rossi v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/12/04 10:50 | Dauud Cheaib v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/12/19 11:00 | Benjamin Fruchart v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/12/19 09:30 | Akito Itagaki v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/12/19 08:10 | Adrien Coton v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/12/18 18:10 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/12/18 16:10 | Benjamin Fruchart v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/12/18 13:30 | Liang Qiu v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/12/18 12:10 | Damien Llorca v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/12/18 07:30 | Daniel Rinderer v Dennis Klein | W | 1-3 |