| Challenger Series TT | 2023/07/04 11:25 | Kirill Fadeev v Dennis Klein | L | 2-3 |
| Challenger Series TT | 2023/07/03 11:50 | Kirill Fadeev v Dennis Klein | W | 3-1 |
| Challenger Series TT | 2023/05/05 11:25 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/05/04 17:10 | Dennis Klein v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/05/02 11:25 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/05/01 09:10 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/04/06 14:30 | Kirill Fadeev v Dennis Klein | L | 1-3 |
| Challenger Series TT | 2023/04/04 10:05 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/08/17 14:30 | Daniel Rinderer v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/08/17 11:50 | Marco Stefanidis v Kirill Fadeev | W | 0-3 |
| Challenger Series TT | 2023/08/17 09:50 | Kirill Fadeev v Tobias Slanina | W | 3-1 |
| Challenger Series TT | 2023/08/17 07:50 | Kirill Fadeev v Makoto Nogami | W | 3-1 |
| Challenger Series TT | 2023/07/14 12:50 | Kirill Fadeev v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/07/14 11:25 | Antonin Gavlas v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/07/14 08:30 | Antonin Gavlas v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/07/14 07:10 | Tobias Slanina v Kirill Fadeev | L | 3-2 |
| Challenger Series TT | 2023/08/17 15:10 | Makoto Nogami v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/08/17 12:30 | Daniel Rinderer v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/08/17 11:10 | Alvaro Gainza v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/08/17 06:30 | Marco Stefanidis v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/07/27 09:50 | Dennis Klein v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/07/27 07:50 | Dennis Klein v Guillaume Alcayde | W | 3-1 |
| Challenger Series TT | 2023/07/11 13:30 | Dennis Klein v Benjamin Fruchart | W | 3-0 |
| Challenger Series TT | 2023/07/11 11:25 | Dennis Klein v Akos Kishegyi | W | 3-0 |