| Challenger Series TT | 2022/10/31 18:10 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/09/29 06:30 | Dennis Klein v Kirill Fadeev | W | 3-1 |
| Challenger Series TT | 2022/09/05 07:10 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger de Ochsenhausen | 2022/07/28 06:30 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/07/12 11:25 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2022/07/11 06:30 | Kirill Fadeev v Dennis Klein | W | 2-3 |
| Challenger de Ochsenhausen | 2022/06/21 13:30 | Dennis Klein v Kirill Fadeev | W | 3-1 |
| Challenger de Ochsenhausen | 2022/06/20 18:30 | Dennis Klein v Kirill Fadeev | W | 3-2 |
| Challenger Series TT | 2023/01/23 12:10 | Enzo Angles v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/01/23 07:30 | Sven Happek v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/01/10 13:50 | Dennis Klein v Yannick Vostes | W | 3-0 |
| Challenger Series TT | 2023/01/10 12:25 | Yongyin Li v Dennis Klein | L | 3-0 |
| Challenger Series TT | 2023/01/10 11:30 | Yongyin Li v Dennis Klein | L | 3-0 |
| Challenger Series TT | 2023/01/10 07:30 | Yannick Vostes v Dennis Klein | L | 3-2 |
| Challenger Series TT | 2023/01/09 19:30 | Dennis Klein v Jean Rassouw | W | 3-0 |
| Challenger Series TT | 2023/01/09 16:10 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/01/06 13:50 | Kirill Fadeev v Daniel Rinderer | W | 3-1 |
| Challenger Series TT | 2023/01/06 12:25 | Dauud Cheaib v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/01/06 10:10 | Kirill Fadeev v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2023/01/05 20:50 | Kirill Fadeev v Liang Qiu | W | 3-1 |
| Challenger Series TT | 2023/01/05 18:10 | Kirill Fadeev v Marius Henninger | L | 1-3 |
| Challenger Series TT | 2023/01/05 15:30 | David Kumpel v Kirill Fadeev | W | 0-3 |
| Challenger Series TT | 2023/01/05 12:50 | Daniel Rinderer v Kirill Fadeev | L | 3-2 |
| Challenger Series TT | 2023/01/05 10:50 | Kirill Fadeev v Salim Karam | W | 3-0 |