Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/05/04 17:10 | Dennis Klein v Kirill Fadeev | W | 3-1 |
| Challenger Series TT | 2023/05/04 14:30 | Damian Zech v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/05/04 11:50 | Makoto Nogami v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/05/04 09:50 | Dennis Klein v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/05/04 07:50 | Dennis Klein v Peter Hribar | W | 3-0 |
| Challenger Series TT | 2023/05/02 13:30 | Dennis Klein v Snehit Suravajjula | L | 0-3 |
| Challenger Series TT | 2023/05/02 11:25 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/05/02 09:50 | Dennis Klein v Benjamin Fruchart | W | 3-2 |
| Challenger Series TT | 2023/05/04 17:50 | Makoto Nogami v Akito Itagaki | L | 3-1 |
| Challenger Series TT | 2023/05/04 15:50 | Akito Itagaki v Bohdan Sinkevych | L | 2-3 |
| Challenger Series TT | 2023/05/04 13:10 | Akito Itagaki v Peter Hribar | L | 0-3 |
| Challenger Series TT | 2023/05/04 11:10 | Akito Itagaki v Kirill Fadeev | L | 2-3 |
| Challenger Series TT | 2023/05/04 08:30 | Benjamin Fruchart v Akito Itagaki | L | 3-1 |