Estadio: 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 | 2024/01/29 16:10 | Dauud Cheaib v Benjamin Fruchart | L | 2-3 |
| Challenger Series TT | 2024/01/29 14:10 | Sven Happek v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2024/01/29 11:30 | Mohammed Javad Sohrabi v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2024/01/29 08:50 | Alberto Lillo v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2024/01/26 14:30 | Dauud Cheaib v Miguel Nunez | W | 3-0 |
| Challenger Series TT | 2024/01/26 12:25 | Dauud Cheaib v Sudhanshu Grover | W | 3-0 |
| Challenger Series TT | 2024/01/26 11:30 | Dauud Cheaib v Mike Hollo | W | 3-1 |
| Challenger Series TT | 2024/01/26 08:50 | Dauud Cheaib v Manuel Kupfer | W | 3-0 |
| Challenger Series TT | 2024/01/29 16:50 | Sven Happek v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/01/29 14:50 | Mohammed Javad Sohrabi v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2024/01/29 10:50 | Alberto Lillo v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2024/01/29 08:10 | Marius Henninger v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/01/16 14:30 | Dennis Klein v Takumi Kageyama | W | 3-0 |
| Challenger Series TT | 2024/01/16 12:25 | Dennis Klein v Norbert Tauler | W | 3-1 |
| Challenger Series TT | 2024/01/16 09:30 | Francesco Maragioglio v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2024/01/16 08:10 | Takumi Kageyama v Dennis Klein | L | 3-0 |