| 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 Ochsenhausen | 2021/12/02 10:50 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Ochsenhausen | 2021/11/16 14:15 | Dauud Cheaib v Dennis Klein | L | 3-0 |
| Challenger Ochsenhausen | 2021/11/15 09:30 | Dauud Cheaib v Dennis Klein | L | 3-1 |
| Challenger Ochsenhausen | 2021/08/30 18:40 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Ochsenhausen | 2021/08/10 14:40 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Ochsenhausen | 2021/08/09 07:10 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2022/09/05 13:50 | Dennis Klein v Felix Kohler | W | 3-0 |
| Challenger Series TT | 2022/09/05 12:30 | Dennis Klein v Carlos Muhlbach | L | 0-3 |
| Challenger Series TT | 2022/09/05 09:10 | Daniel Rinderer v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/09/05 07:10 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2022/09/02 13:30 | Dennis Klein v Amirreza Abbasi | W | 3-1 |
| Challenger Series TT | 2022/09/02 11:25 | Dennis Klein v Elia Schmid | W | 3-0 |
| Challenger Series TT | 2022/09/02 09:50 | Dennis Klein v Denis Bernhard | W | 3-0 |
| Challenger Series TT | 2022/09/02 06:30 | Dennis Klein v Mohammadali Rouintanesfahani | W | 3-0 |
| Challenger Series TT | 2022/09/05 15:10 | Daniel Rinderer v Dauud Cheaib | L | 3-1 |
| Challenger Series TT | 2022/09/05 13:10 | Dauud Cheaib v Kirill Fadeev | W | 3-2 |
| Challenger Series TT | 2022/09/05 10:30 | Dauud Cheaib v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2022/09/05 08:30 | Dauud Cheaib v Romain Ruiz | L | 2-3 |
| Challenger Series TT | 2022/07/26 12:50 | Dauud Cheaib v Florian Bluhm | W | 3-1 |
| Challenger Series TT | 2022/07/26 10:45 | Dauud Cheaib v Kirill Fadeev | W | 3-2 |
| Challenger Series TT | 2022/07/26 07:50 | Kenan Hrnic v Dauud Cheaib | W | 0-3 |
| Challenger Series TT | 2022/07/25 17:50 | Florian Bluhm v Dauud Cheaib | W | 0-3 |