Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/09/08 12:50 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/09/08 11:25 | Dennis Klein v Rafael Turrini | L | 2-3 |
| Challenger Series TT | 2023/09/08 09:50 | Dennis Klein v Miguel Nunez | W | 3-0 |
| Challenger Series TT | 2023/09/08 06:30 | Dennis Klein v Corentin Mazaud | W | 3-1 |
| Challenger Series TT | 2023/09/07 17:50 | Dennis Klein v Oliver Both | W | 3-0 |
| Challenger Series TT | 2023/09/07 16:30 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/09/07 11:50 | Dennis Klein v Rafael Turrini | W | 3-0 |
| Challenger Series TT | 2023/09/07 09:10 | Dennis Klein v Tobias Slanina | W | 3-1 |