| Challenger Series TT | 2023/01/09 16:10 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2022/09/05 17:10 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Ochsenhausen | 2021/12/14 10:00 | Dennis Klein v Dauud Cheaib | W | 1-3 |
| Challenger Ochsenhausen | 2021/12/03 14:30 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/12/02 10:50 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/16 14:15 | Dauud Cheaib v Dennis Klein | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/15 09:30 | Dauud Cheaib v Dennis Klein | W | 3-1 |
| Challenger Ochsenhausen | 2021/08/30 18:40 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/08/10 14:40 | Dennis Klein v Dauud Cheaib | L | 3-2 |
| Challenger Ochsenhausen | 2021/08/09 07:10 | Dennis Klein v Dauud Cheaib | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/30 11:25 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Ochsenhausen | 2021/07/28 09:50 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Ochsenhausen | 2021/07/27 13:15 | Dennis Klein v Dauud Cheaib | L | 3-2 |
| Challenger Ochsenhausen | 2021/07/26 12:30 | Dauud Cheaib v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2021/07/14 12:30 | Dauud Cheaib v Dennis Klein | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/29 14:40 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/06/28 18:00 | Dauud Cheaib v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2021/06/04 13:30 | Dauud Cheaib v Dennis Klein | L | 0-3 |
| Challenger Ochsenhausen | 2021/06/04 07:10 | Dennis Klein v Dauud Cheaib | W | 2-3 |
| Challenger Ochsenhausen | 2021/06/01 12:35 | Dennis Klein v Dauud Cheaib | W | 2-3 |
| Challenger Ochsenhausen | 2021/05/31 18:00 | Dennis Klein v Dauud Cheaib | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/20 13:15 | Dennis Klein v Dauud Cheaib | L | 3-2 |
| Challenger Ochsenhausen | 2021/04/19 18:00 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/13 14:40 | Dauud Cheaib v Dennis Klein | W | 3-2 |
| Challenger Ochsenhausen | 2021/04/12 15:20 | Dennis Klein v Dauud Cheaib | L | 3-0 |
| Challenger Ochsenhausen | 2021/04/09 12:05 | Dauud Cheaib v Dennis Klein | L | 0-3 |
| Challenger Ochsenhausen | 2021/04/07 07:10 | Dauud Cheaib v Dennis Klein | W | 3-2 |
| Challenger Ochsenhausen | 2021/02/26 14:30 | Dennis Klein v Dauud Cheaib | W | 0-3 |
| Challenger Ochsenhausen | 2021/02/25 10:50 | Dennis Klein v Dauud Cheaib | W | 2-3 |
| Challenger Ochsenhausen | 2021/02/22 16:20 | Dennis Klein v Dauud Cheaib | W | 0-3 |