| Challenger Ochsenhausen | 2022/05/19 10:30 | Sven Happek v Dillon Chambers | L | 1-3 |
| Challenger Ochsenhausen | 2022/05/12 11:10 | Dillon Chambers v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/02/24 18:50 | Sven Happek v Dillon Chambers | L | 1-3 |
| Challenger Ochsenhausen | 2021/04/01 09:10 | Dillon Chambers v Sven Happek | L | 3-2 |
| Challenger Ochsenhausen | 2021/03/11 10:50 | Sven Happek v Dillon Chambers | W | 3-2 |
| Challenger Ochsenhausen | 2021/01/28 07:30 | Sven Happek v Dillon Chambers | L | 0-3 |