Stadium: Ochsenhausen, Germany
| Challenger Series TT | 2023/03/06 10:50 | Marius Henninger v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/10/31 07:30 | Marius Henninger v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/10/11 07:10 | Dennis Klein v Marius Henninger | L | 2-3 |
| Challenger Ochsenhausen | 2021/04/19 11:50 | Marius Henninger v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2021/04/12 12:30 | Dennis Klein v Marius Henninger | W | 3-0 |
| Challenger Series TT | 2023/03/27 17:10 | Dennis Klein v Jeromy Loffler | W | 3-1 |
| Challenger Series TT | 2023/03/27 14:30 | Makoto Nogami v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2023/03/27 11:50 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| 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 | 2023/03/27 15:50 | Marius Henninger v Dillon Chambers | L | 1-3 |
| Challenger Series TT | 2023/03/27 13:10 | Marius Henninger v Bohdan Sinkevych | W | 3-0 |
| Challenger Series TT | 2023/03/27 11:10 | Marius Henninger v Jeromy Loffler | L | 0-3 |
| Challenger Series TT | 2023/03/27 08:30 | Dauud Cheaib v Marius Henninger | W | 1-3 |
| Challenger Series TT | 2023/03/21 11:30 | Marius Henninger v Rafael Turrini | L | 1-3 |
| Challenger Series TT | 2023/03/21 08:50 | Marius Henninger v Siddharta Almeida | W | 3-0 |
| Challenger Series TT | 2023/03/20 20:10 | Marius Henninger v Laszlo Magyar | L | 2-3 |
| Challenger Series TT | 2023/03/20 15:30 | Marius Henninger v Dauud Cheaib | L | 1-3 |