Stadium: Ochsenhausen, Germany
| 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 | 2023/02/02 14:50 | Hannes Hormann v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2023/02/02 11:30 | Hannes Hormann v Dillon Chambers | L | 1-3 |
| Challenger Series TT | 2023/02/02 09:30 | Hannes Hormann v Nikola Grujic | L | 2-3 |
| Challenger Series TT | 2023/07/04 12:50 | Kirill Fadeev v David Reitspies | W | 2-3 |
| Challenger Series TT | 2023/07/04 12:05 | David Reitspies v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2023/07/04 10:30 | Tobias Slanina v David Reitspies | W | 0-3 |
| Challenger Series TT | 2023/07/04 06:30 | Kirill Fadeev v David Reitspies | W | 1-3 |
| Challenger Series TT | 2023/07/03 18:30 | David Reitspies v Akito Itagaki | W | 3-2 |
| Challenger Series TT | 2023/07/03 15:10 | David Reitspies v Daniel Rinderer | W | 3-0 |
| Challenger Series TT | 2023/07/03 13:10 | Benjamin Fruchart v David Reitspies | W | 1-3 |
| Challenger Series TT | 2023/07/03 10:30 | Mathias Golab v David Reitspies | W | 2-3 |