| 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 | 2023/04/03 14:30 | Dennis Klein v Kirill Fadeev | L | 3-2 |
| Challenger Series TT | 2023/07/04 09:50 | Kirill Fadeev v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/07/04 06:30 | Kirill Fadeev v David Reitspies | L | 1-3 |
| Challenger Series TT | 2023/07/03 17:50 | Kirill Fadeev v Benjamin Fruchart | W | 3-1 |
| Challenger Series TT | 2023/07/03 16:30 | Kirill Fadeev v Mathias Golab | W | 3-0 |
| Challenger Series TT | 2023/07/03 11:50 | Kirill Fadeev v Dennis Klein | W | 3-1 |
| Challenger Series TT | 2023/07/03 09:10 | Kirill Fadeev v Tobias Slanina | W | 3-1 |
| Challenger Series TT | 2023/07/03 06:30 | Kirill Fadeev v Daniel Rinderer | W | 3-1 |
| Challenger Series TT | 2023/06/30 13:30 | Kirill Fadeev v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2023/07/04 09:10 | Dennis Klein v Mathias Golab | W | 3-0 |
| Challenger Series TT | 2023/07/03 19:50 | Dennis Klein v Benjamin Fruchart | L | 0-3 |
| Challenger Series TT | 2023/07/03 17:10 | Dennis Klein v Daniel Rinderer | W | 3-1 |
| Challenger Series TT | 2023/07/03 14:30 | Tobias Slanina v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/07/03 11:50 | Kirill Fadeev v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/07/03 09:50 | Dennis Klein v Akito Itagaki | W | 3-0 |
| Challenger Series TT | 2023/07/03 07:50 | Dennis Klein v David Reitspies | W | 3-1 |
| Challenger Series TT | 2023/06/23 13:30 | Dennis Klein v Dauud Cheaib | W | 3-0 |