| Challenger Series TT | 2022/09/19 17:10 | Damian Zech v Liang Qiu | W | 1-3 |
| Challenger Ochsenhausen | 2022/07/28 07:50 | Liang Qiu v Damian Zech | W | 3-0 |
| Challenger Ochsenhausen | 2022/01/20 13:30 | Liang Qiu v Damian Zech | W | 3-0 |
| Challenger Ochsenhausen | 2021/10/18 12:30 | Damian Zech v Liang Qiu | W | 0-3 |