| Challenger Ochsenhausen | 2021/02/15 13:30 | Pekka Pelz v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/04/03 06:30 | Pekka Pelz v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/02/21 09:30 | Miguel Nunez v Pekka Pelz | L | 3-2 |
| Challenger Series TT | 2023/02/21 08:10 | Andrei Putuntica v Pekka Pelz | L | 3-1 |
| Challenger Series TT | 2023/02/20 14:50 | Dauud Cheaib v Pekka Pelz | L | 3-2 |
| Challenger Series TT | 2023/02/20 12:50 | Norbert Tauler v Pekka Pelz | L | 3-1 |
| Challenger Series TT | 2023/02/20 12:10 | David Reitspies v Pekka Pelz | L | 3-1 |
| Challenger Series TT | 2023/02/20 07:30 | Daniel Rinderer v Pekka Pelz | L | 3-1 |
| Challenger Ochsenhausen | 2021/04/06 11:00 | Pekka Pelz v Jiri Martinko | L | 0-3 |
| Challenger Series TT | 2023/04/03 07:10 | Dennis Klein v Amirreza Abbasi | W | 3-2 |
| Challenger Series TT | 2023/03/28 12:50 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| 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 |