Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/05/02 11:25 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/05/01 09:10 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/04/06 14:30 | Kirill Fadeev v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/04/04 10:05 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/04/03 14:30 | Dennis Klein v Kirill Fadeev | W | 3-2 |
| Challenger Series TT | 2023/03/27 11:50 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/02/06 07:30 | Kirill Fadeev v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/02/02 07:30 | 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 | 2023/05/02 06:30 | Dennis Klein v Snehit Suravajjula | L | 2-3 |
| Challenger Series TT | 2023/05/04 15:10 | Peter Hribar v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/05/04 12:30 | Damian Zech v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/05/04 11:10 | Akito Itagaki v Kirill Fadeev | W | 2-3 |
| Challenger Series TT | 2023/05/04 06:30 | Makoto Nogami v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/05/02 12:50 | Kirill Fadeev v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/05/02 11:25 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/05/02 10:30 | Kirill Fadeev v Snehit Suravajjula | L | 1-3 |
| Challenger Series TT | 2023/05/02 07:50 | Kirill Fadeev v George Downing | W | 3-0 |