| Challenger Ochsenhausen | 2021/06/02 12:30 | Dennis Klein v Samuel Amann | L | 3-0 |
| Challenger Ochsenhausen | 2021/05/11 11:00 | Dennis Klein v Samuel Amann | L | 3-0 |
| Challenger Series TT | 2022/07/11 09:10 | Kirill Fadeev v Samuel Amann | L | 3-1 |
| Challenger Series TT | 2022/07/11 07:10 | Samuel Amann v Sven Happek | L | 1-3 |
| Challenger Ochsenhausen | 2022/06/28 08:30 | Samuel Amann v Florian Bluhm | L | 0-3 |
| Challenger Ochsenhausen | 2022/06/28 06:30 | Samuel Amann v Simon Berglund | L | 0-3 |
| Challenger Ochsenhausen | 2022/06/27 15:50 | Samuel Amann v Amir Hossein Hodaei | L | 1-3 |
| Challenger Ochsenhausen | 2022/06/27 15:10 | Samuel Amann v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2022/06/27 11:50 | Samuel Amann v Damian Zech | L | 1-3 |
| Challenger Ochsenhausen | 2022/06/27 09:10 | Samuel Amann v Sven Happek | L | 2-3 |
| Challenger Series TT | 2022/07/11 11:10 | Michael Engelhardt v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2022/07/11 06:30 | Kirill Fadeev v Dennis Klein | W | 2-3 |
| Challenger Ochsenhausen | 2022/06/24 13:30 | Simon Berglund v Dennis Klein | L | 3-1 |
| Challenger Ochsenhausen | 2022/06/24 13:05 | Amirreza Abbasi v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2022/06/24 09:50 | Dennis Klein v Simon Berglund | W | 3-1 |
| Challenger Ochsenhausen | 2022/06/24 06:30 | Dennis Klein v Mohammadali Rouintanesfahani | W | 3-1 |
| Challenger Ochsenhausen | 2022/06/23 17:50 | Dennis Klein v Albert Vilardell | W | 3-2 |
| Challenger Ochsenhausen | 2022/06/23 16:30 | Dennis Klein v Josip Huzjak | W | 3-0 |