| Challenger Series TT | 2022/08/09 09:50 | Dennis Klein v Samuel Amann | W | 3-0 |
| Challenger Series TT | 2022/07/11 12:30 | Samuel Amann v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2021/06/02 12:30 | Dennis Klein v Samuel Amann | W | 3-0 |
| Challenger Ochsenhausen | 2021/05/11 11:00 | Dennis Klein v Samuel Amann | W | 3-0 |