| Challenger Series TT | 2023/06/23 07:50 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/04/04 07:10 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/03/28 12:50 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/03/28 08:30 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/03/07 14:30 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/03/06 16:50 | Dauud Cheaib v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/02/06 13:30 | Dauud Cheaib v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/01/09 16:10 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/06/23 11:32 | Dennis Klein v Igor Zavadskij | W | 3-0 |
| Challenger Series TT | 2023/06/23 11:25 | Dennis Klein v Ihor Zavadskyi | W | 3-0 |
| Challenger Series TT | 2023/06/23 07:50 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/06/22 19:10 | Dennis Klein v Carlo Rossi | W | 3-1 |
| Challenger Series TT | 2023/06/22 14:30 | Dennis Klein v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/06/22 12:30 | Dennis Klein v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2023/06/22 09:10 | Tobias Slanina v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/06/22 07:10 | Dennis Klein v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/06/23 12:05 | Dauud Cheaib v Carlo Rossi | W | 3-0 |
| Challenger Series TT | 2023/06/23 07:50 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Series TT | 2023/06/22 19:50 | Sven Happek v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/06/22 17:50 | Tobias Slanina v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/06/22 15:50 | Dauud Cheaib v Samuel Amann | W | 3-1 |
| Challenger Series TT | 2023/06/22 13:10 | Dauud Cheaib v Ihor Zavadskyi | W | 3-1 |
| Challenger Series TT | 2023/06/22 11:10 | Dauud Cheaib v Johannes Willeke | W | 3-0 |
| Challenger Series TT | 2023/06/22 08:30 | Dauud Cheaib v Carlo Rossi | W | 3-1 |