| Challenger Ochsenhausen | 2020/02/17 10:10 | Liang Qiu v Jakub Kosowski | W | 0-3 |
| Challenger Ochsenhausen | 2019/07/18 12:30 | Jakub Kosowski v Liang Qiu | W | 3-1 |
| Challenger Ochsenhausen | 2019/04/19 11:50 | Jakub Kosowski v Liang Qiu | W | 3-2 |
| Challenger Ochsenhausen | 2019/04/18 07:50 | Liang Qiu v Jakub Kosowski | L | 3-2 |
| Challenger Ochsenhausen | 2018/06/04 20:00 | Jakub Kosowski v Liang Qiu | W | 3-1 |