Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/01/13 10:50 | Damian Zech v Jean Rassouw | W | 2-3 |
| Challenger Series TT | 2023/01/13 09:30 | Jean Rassouw v Makoto Nogami | W | 3-2 |
| Challenger Series TT | 2023/01/12 19:30 | Bohdan Sinkevych v Jean Rassouw | L | 3-1 |
| Challenger Series TT | 2023/01/12 16:50 | Aljaz Godec v Jean Rassouw | L | 3-1 |
| Challenger Series TT | 2023/01/12 14:50 | Dillon Chambers v Jean Rassouw | L | 3-2 |
| Challenger Series TT | 2023/01/12 10:50 | Josip Huzjak v Jean Rassouw | L | 3-0 |
| Challenger Series TT | 2023/01/12 08:10 | Sven Happek v Jean Rassouw | L | 3-0 |
| Challenger Series TT | 2023/01/10 10:50 | Yannick Vostes v Jean Rassouw | L | 3-0 |
| Challenger Series TT | 2023/07/07 09:10 | Dennis Klein v Mathias Golab | L | 3-1 |
| Challenger Series TT | 2023/07/07 07:10 | Mathias Golab v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/07/06 19:10 | Hannes Hormann v Mathias Golab | L | 3-1 |
| Challenger Series TT | 2023/07/06 16:30 | Johannes Willeke v Mathias Golab | L | 3-0 |
| Challenger Series TT | 2023/07/06 13:50 | Mathias Golab v David Reitspies | L | 0-3 |
| Challenger Series TT | 2023/07/06 10:30 | Mathias Golab v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2023/07/06 08:30 | Mathias Golab v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2023/07/04 09:10 | Dennis Klein v Mathias Golab | L | 3-0 |