| Challenger Series TT | 2023/01/09 11:30 | Daniel Rinderer v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2022/09/29 17:50 | Dennis Klein v Daniel Rinderer | W | 3-0 |
| Challenger Series TT | 2022/09/06 11:25 | Dennis Klein v Daniel Rinderer | W | 3-2 |
| Challenger Series TT | 2022/09/05 09:10 | Daniel Rinderer v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/09/01 06:30 | Dennis Klein v Daniel Rinderer | W | 3-0 |
| Challenger Series TT | 2022/07/12 07:10 | Daniel Rinderer v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2022/06/23 09:10 | Dennis Klein v Daniel Rinderer | L | 0-3 |
| Challenger Ochsenhausen | 2022/05/27 11:30 | Daniel Rinderer v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/05/09 12:50 | Humberto Manhani v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/05/09 12:05 | Amirreza Abbasi v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/05/09 08:30 | Amirreza Abbasi v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/05/09 07:10 | Humberto Manhani v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/05/08 17:10 | Sven Happek v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/05/08 15:10 | Anton Limonov v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/05/08 12:30 | Anton Andersson v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/05/08 11:10 | Antonin Gavlas v Dennis Klein | L | 3-0 |
| Challenger Series TT | 2023/02/21 10:10 | Daniel Rinderer v Miguel Nunez | L | 2-3 |
| Challenger Series TT | 2023/02/21 07:30 | Daniel Rinderer v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2023/02/20 16:50 | Daniel Rinderer v David Reitspies | L | 1-3 |
| Challenger Series TT | 2023/02/20 16:10 | Daniel Rinderer v Andrei Putuntica | L | 1-3 |
| Challenger Series TT | 2023/02/20 10:10 | Daniel Rinderer v Norbert Tauler | L | 2-3 |
| Challenger Series TT | 2023/02/20 07:30 | Daniel Rinderer v Pekka Pelz | W | 3-1 |
| Challenger Series TT | 2023/01/10 10:10 | Kestutis Zeimys v Daniel Rinderer | W | 2-3 |
| Challenger Series TT | 2023/01/10 08:10 | Daniel Rinderer v Dauud Cheaib | L | 2-3 |