| Challenger Series TT | 2022/10/31 12:10 | Dillon Chambers v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/09/01 17:50 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2022/05/26 11:50 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2022/05/13 07:50 | Dennis Klein v Dillon Chambers | W | 3-1 |
| Challenger Ochsenhausen | 2022/03/24 17:30 | Dennis Klein v Dillon Chambers | W | 3-1 |
| Challenger Ochsenhausen | 2021/08/10 11:40 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/09 07:50 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Ochsenhausen | 2021/06/03 10:30 | Dennis Klein v Dillon Chambers | W | 3-0 |
| Challenger Series TT | 2023/02/02 18:50 | Dennis Klein v Nikola Grujic | W | 3-0 |
| Challenger Series TT | 2023/02/02 17:30 | Dennis Klein v Hannes Hormann | W | 3-0 |
| Challenger Series TT | 2023/02/02 12:50 | Dennis Klein v Damian Zech | W | 3-0 |
| Challenger Series TT | 2023/02/02 10:10 | Dennis Klein v Kenan Hrnic | W | 3-0 |
| Challenger Series TT | 2023/02/02 07:30 | Dennis Klein v Kirill Fadeev | W | 3-1 |
| Challenger Series TT | 2023/01/23 12:10 | Enzo Angles v Dennis Klein | L | 3-1 |
| Challenger Series TT | 2023/01/23 07:30 | Sven Happek v Dennis Klein | W | 1-3 |
| Challenger Series TT | 2023/01/10 13:50 | Dennis Klein v Yannick Vostes | W | 3-0 |
| Challenger Series TT | 2023/02/02 19:30 | Dillon Chambers v Anton Limonov | L | 1-3 |
| Challenger Series TT | 2023/02/02 16:10 | Dillon Chambers v Kirill Fadeev | L | 0-3 |
| Challenger Series TT | 2023/02/02 14:10 | Nikola Grujic v Dillon Chambers | W | 0-3 |
| Challenger Series TT | 2023/02/02 11:30 | Hannes Hormann v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/02/02 08:50 | Damian Zech v Dillon Chambers | W | 1-3 |
| Challenger Series TT | 2023/01/13 10:10 | Josip Huzjak v Dillon Chambers | W | 2-3 |
| Challenger Series TT | 2023/01/13 08:10 | Dillon Chambers v Makoto Nogami | L | 1-3 |
| Challenger Series TT | 2023/01/12 20:10 | Sven Happek v Dillon Chambers | L | 3-2 |