Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/06 14:30 | Hannes Hormann v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2023/07/06 12:30 | Hannes Hormann v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/07/06 09:10 | Johannes Willeke v Hannes Hormann | W | 2-3 |
| Challenger Series TT | 2023/07/06 07:10 | Hannes Hormann v David Reitspies | L | 1-3 |
| Challenger Series TT | 2023/02/03 10:10 | Damian Zech v Hannes Hormann | W | 1-3 |
| Challenger Series TT | 2023/02/03 08:10 | Hannes Hormann v Kirill Fadeev | L | 0-3 |
| Challenger Series TT | 2023/02/02 20:10 | Kenan Hrnic v Hannes Hormann | W | 0-3 |
| Challenger Series TT | 2023/02/02 17:30 | Dennis Klein v Hannes Hormann | L | 3-0 |
| 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 |
| Challenger Series TT | 2023/07/04 07:10 | Mathias Golab v Daniel Rinderer | L | 1-3 |
| Challenger Series TT | 2023/07/03 19:10 | Tobias Slanina v Mathias Golab | L | 3-2 |
| Challenger Series TT | 2023/07/03 16:30 | Kirill Fadeev v Mathias Golab | L | 3-0 |