Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/02/06 07:30 | Kirill Fadeev v Dennis Klein | W | 3-1 |
| Challenger Series TT | 2023/02/02 07:30 | Dennis Klein v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2022/10/31 18:10 | Kirill Fadeev v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2022/09/29 06:30 | Dennis Klein v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2022/09/05 07:10 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Ochsenhausen | 2022/07/28 06:30 | Kirill Fadeev v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2022/07/12 11:25 | Dennis Klein v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2022/07/11 06:30 | Kirill Fadeev v Dennis Klein | L | 2-3 |
| Challenger Series TT | 2023/03/27 09:10 | Kirill Fadeev v Makoto Nogami | W | 3-0 |
| Challenger Series TT | 2023/03/27 06:30 | Kirill Fadeev v Jeromy Loffler | L | 1-3 |
| Challenger Series TT | 2023/03/10 13:50 | Thibault Poret v Kirill Fadeev | L | 3-1 |
| Challenger Series TT | 2023/03/10 13:05 | Dimitrije Levajac v Kirill Fadeev | L | 3-2 |
| Challenger Series TT | 2023/03/10 10:50 | Kirill Fadeev v Dimitrije Levajac | L | 0-3 |
| Challenger Series TT | 2023/03/10 07:30 | Kirill Fadeev v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/03/09 18:50 | Kirill Fadeev v Guilherme Teodoro | L | 2-3 |
| Challenger Series TT | 2023/03/09 17:30 | Kirill Fadeev v Thibault Poret | W | 3-2 |
| Challenger Series TT | 2023/03/27 09:50 | Dennis Klein v Dillon Chambers | L | 2-3 |
| Challenger Series TT | 2023/03/27 07:50 | Dennis Klein v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/03/07 14:30 | Dennis Klein v Dauud Cheaib | W | 3-2 |
| Challenger Series TT | 2023/03/07 12:25 | Dennis Klein v Peter Hribar | W | 3-1 |
| Challenger Series TT | 2023/03/07 10:50 | Aljaz Godec v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/03/07 09:30 | Dennis Klein v Peter Hribar | L | 2-3 |
| Challenger Series TT | 2023/03/06 19:30 | Sven Happek v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/03/06 16:50 | Dauud Cheaib v Dennis Klein | W | 0-3 |