| Challenger - Series TT | 2023/02/02 17:30 | Dennis Klein v Hannes Hormann | W | 3-0 |
| Challenger - Series TT | 2023/02/02 12:50 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger - Series TT | 2023/02/02 10:10 | Dennis Klein v Kenan Hrnic | W | 3-0 |
| Challenger - Series TT | 2023/02/02 07:30 | Dennis Klein v Kirill Fadeev | W | 3-1 |
| Challenger - Series TT | 2023/01/23 12:10 | Enzo Angles v Dennis Klein | L | 3-1 |
| Challenger - Series TT | 2023/01/23 07:30 | Sven Happek v Dennis Klein | W | 1-3 |
| Challenger - Series TT | 2023/01/10 13:50 | Dennis Klein v Yannick Vostes | W | 3-0 |
| Challenger - Series TT | 2023/01/10 12:25 | Yongyin Li v Dennis Klein | L | 3-0 |
| Challenger - Series TT | 2023/02/02 16:50 | Nikola Grujic v Anton Limonov | L | 1-3 |
| Challenger - Series TT | 2023/02/02 14:10 | Nikola Grujic v Dillon Chambers | L | 0-3 |
| Challenger - Series TT | 2023/02/02 12:10 | Nikola Grujic v Kirill Fadeev | L | 1-3 |
| Challenger - Series TT | 2023/02/02 09:30 | Hannes Hormann v Nikola Grujic | W | 2-3 |
| Challenger - Series TT | 2023/01/31 11:30 | Makoto Nogami v Nikola Grujic | L | 3-2 |
| Challenger - Series TT | 2023/01/31 07:30 | Florian Bluhm v Nikola Grujic | L | 3-0 |
| Challenger - Series TT | 2023/01/30 19:30 | Nikola Grujic v Guilherme Teodoro | L | 1-3 |
| Challenger - Series TT | 2023/01/30 16:10 | Nikola Grujic v Samuel Amann | W | 3-0 |