Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/10/16 06:30 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| 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 | 2023/12/12 07:30 | Dennis Klein v Bohdan Sinkevych | W | 3-1 |
| Challenger Series TT | 2023/12/11 18:50 | Dennis Klein v Jeromy Loffler | W | 3-0 |
| Challenger Series TT | 2023/12/11 17:30 | Dennis Klein v Lichen Wang | W | 3-0 |
| Challenger Series TT | 2023/12/11 12:50 | Dennis Klein v Mike Hollo | W | 3-0 |
| Challenger Series TT | 2023/12/11 10:10 | Dennis Klein v Alexander Valuch | W | 3-0 |
| Challenger Series TT | 2023/12/11 07:30 | Dennis Klein v Liang Qiu | W | 3-0 |
| Challenger Series TT | 2023/11/14 14:30 | Dennis Klein v Dauud Cheaib | W | 3-0 |
| Challenger Series TT | 2023/11/14 12:25 | Dennis Klein v Martin Baechler | W | 3-0 |
| Challenger Series TT | 2023/12/12 09:30 | Kirill Fadeev v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/12/11 19:30 | Kirill Fadeev v Bohdan Sinkevych | L | 2-3 |
| Challenger Series TT | 2023/12/11 16:50 | Jeromy Loffler v Kirill Fadeev | L | 3-2 |
| Challenger Series TT | 2023/12/11 14:50 | Lichen Wang v Kirill Fadeev | W | 2-3 |
| Challenger Series TT | 2023/12/11 10:50 | Mike Hollo v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/12/11 08:10 | Alexander Valuch v Kirill Fadeev | L | 3-0 |
| Challenger Series TT | 2023/11/28 13:10 | Liang Qiu v Kirill Fadeev | W | 1-3 |
| Challenger Series TT | 2023/11/28 11:45 | Kirill Fadeev v Michael Fuchs | W | 3-0 |