| Challenger de Ochsenhausen | 2019/11/07 11:30 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger de Ochsenhausen | 2019/07/15 09:50 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger de Ochsenhausen | 2019/03/14 09:30 | Jakub Kosowski v Sven Happek | L | 1-3 |
| Challenger de Ochsenhausen | 2018/11/21 12:50 | Jakub Kosowski v Sven Happek | W | 3-0 |
| Challenger de Ochsenhausen | 2018/04/16 18:40 | Jakub Kosowski v Sven Happek | W | 3-1 |
| Challenger de Ochsenhausen | 2018/01/18 11:30 | Jakub Kosowski v Sven Happek | W | 3-0 |