Stadium: Ochsenhausen, Germany Round: 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 | 2022/09/05 17:10 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Ochsenhausen | 2021/12/14 10:00 | Dennis Klein v Dauud Cheaib | L | 1-3 |
| Challenger Ochsenhausen | 2021/12/03 14:30 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/03/28 10:45 | Dennis Klein v Jeromy Loffler | W | 3-1 |
| Challenger Series TT | 2023/03/28 08:30 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/03/27 17:10 | Dennis Klein v Jeromy Loffler | W | 3-1 |
| Challenger Series TT | 2023/03/27 14:30 | Makoto Nogami v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/27 11:50 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/27 09:50 | Dennis Klein v Dillon Chambers | L | 2-3 |
| 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 | 2023/03/28 11:25 | Dauud Cheaib v Kirill Fadeev | W | 3-1 |
| Challenger Series TT | 2023/03/28 08:30 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2023/03/28 07:10 | Dauud Cheaib v Jeromy Loffler | W | 3-1 |
| Challenger Series TT | 2023/03/27 18:30 | Makoto Nogami v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2023/03/27 16:30 | Kirill Fadeev v Dauud Cheaib | W | 2-3 |
| Challenger Series TT | 2023/03/27 13:50 | Dauud Cheaib v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/03/27 10:30 | Dauud Cheaib v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/03/27 08:30 | Dauud Cheaib v Marius Henninger | L | 1-3 |