Estadio: Ochsenhausen, Germany
| Challenger Series TT | 2023/07/07 13:30 | Dennis Klein v David Reitspies | W | 3-2 |
| Challenger Series TT | 2023/07/07 11:25 | Dennis Klein v Liang Qiu | W | 3-1 |
| Challenger Series TT | 2023/07/07 09:10 | Dennis Klein v Mathias Golab | W | 3-1 |
| Challenger Series TT | 2023/07/06 19:50 | Dennis Klein v Benjamin Fruchart | W | 3-1 |
| Challenger Series TT | 2023/07/06 17:10 | Dennis Klein v Liang Qiu | W | 3-1 |
| Challenger Series TT | 2023/07/06 14:30 | Hannes Hormann v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/07/06 11:50 | Johannes Willeke v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/07/06 09:50 | Dennis Klein v David Reitspies | W | 3-0 |
| Challenger Series TT | 2023/06/06 09:50 | Akos Kishegyi v Florian Bluhm | L | 0-3 |
| Challenger Series TT | 2023/06/06 06:30 | Akos Kishegyi v Jin Ueda | L | 0-3 |
| Challenger Series TT | 2023/06/05 17:50 | Akos Kishegyi v Antonin Gavlas | L | 0-3 |
| Challenger Series TT | 2023/06/05 16:30 | Akos Kishegyi v Simon Berglund | L | 0-3 |
| Challenger Series TT | 2023/06/05 11:50 | Akos Kishegyi v Akito Itagaki | L | 1-3 |
| Challenger Series TT | 2023/06/05 09:10 | Akos Kishegyi v Kirill Fadeev | L | 2-3 |
| Challenger Series TT | 2023/06/05 06:30 | Akos Kishegyi v David Molnar | L | 1-3 |
| Challenger Series TT | 2023/05/16 10:40 | Akos Kishegyi v Norbert Tauler | L | 1-3 |