| 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 | 2022/10/31 18:10 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| 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 | 2023/05/01 17:50 | Dennis Klein v George Downing | W | 3-0 |
| Challenger Series TT | 2023/05/01 16:30 | Dennis Klein v Alexander Sverdlik | W | 3-0 |
| Challenger Series TT | 2023/05/01 11:50 | Dennis Klein v Nico Longhino | W | 3-0 |
| Challenger Series TT | 2023/05/01 09:10 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/05/01 06:30 | Dennis Klein v Michael Engelhardt | W | 3-0 |
| Challenger Series TT | 2023/04/07 12:50 | Yannick Vostes v Dennis Klein | W | 1-3 |
| 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 |
| Challenger Series TT | 2023/05/01 19:10 | Kirill Fadeev v Alexander Sverdlik | W | 3-1 |
| Challenger Series TT | 2023/05/01 14:30 | Kirill Fadeev v Nico Longhino | W | 3-0 |
| Challenger Series TT | 2023/05/01 12:30 | Kirill Fadeev v Michael Engelhardt | W | 3-0 |
| Challenger Series TT | 2023/05/01 09:10 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/05/01 07:10 | Kirill Fadeev v Benjamin Fruchart | L | 1-3 |
| Challenger Series TT | 2023/04/24 19:10 | Kirill Fadeev v Alvaro Gainza | L | 0-3 |