Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/09/07 06:30 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/08/18 13:30 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/08/17 17:10 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/07/04 11:25 | Kirill Fadeev v Dennis Klein | W | 2-3 |
| Challenger Series TT | 2023/07/03 11:50 | Kirill Fadeev v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/05/05 11:25 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/05/04 17:10 | Dennis Klein v Kirill Fadeev | W | 3-1 |
| Challenger Series TT | 2023/05/02 11:25 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2023/09/08 12:50 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/09/08 11:25 | Dennis Klein v Rafael Turrini | L | 2-3 |
| Challenger Series TT | 2023/09/08 09:50 | Dennis Klein v Miguel Nunez | W | 3-0 |
| Challenger Series TT | 2023/09/08 06:30 | Dennis Klein v Corentin Mazaud | W | 3-1 |
| Challenger Series TT | 2023/09/07 17:50 | Dennis Klein v Oliver Both | W | 3-0 |
| Challenger Series TT | 2023/09/07 16:30 | Dennis Klein v Dauud Cheaib | W | 3-1 |
| Challenger Series TT | 2023/09/07 11:50 | Dennis Klein v Rafael Turrini | W | 3-0 |
| Challenger Series TT | 2023/09/07 09:10 | Dennis Klein v Tobias Slanina | W | 3-1 |
| Challenger Series TT | 2023/09/15 09:10 | Jin Ueda v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/09/15 07:50 | Kirill Fadeev v Akito Itagaki | L | 2-3 |
| Challenger Series TT | 2023/09/14 17:10 | Guillaume Alcayde v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/09/14 13:50 | Antonin Gavlas v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/09/14 09:50 | Simon Berglund v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/09/14 07:10 | Marco Stefanidis v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/09/08 13:30 | Rafael Turrini v Kirill Fadeev | W | 2-3 |
| Challenger Series TT | 2023/09/08 12:05 | Dauud Cheaib v Kirill Fadeev | W | 1-3 |