Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/06/27 09:50 | Marius Henninger v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/06/27 08:30 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/06/26 18:30 | Benjamin Fruchart v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/06/26 15:50 | Antonin Gavlas v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/26 13:50 | Carlo Rossi v Sven Happek | L | 3-2 |
| Challenger Series TT | 2023/06/26 09:50 | Damian Zech v Sven Happek | W | 2-3 |
| Challenger Series TT | 2023/06/26 07:10 | Makoto Nogami v Sven Happek | L | 3-1 |
| Challenger Series TT | 2023/06/23 09:10 | Sven Happek v Carlo Rossi | L | 2-3 |
| 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 |