| Challenger Ochsenhausen | 2021/01/25 10:10 | Liang Qiu v Dauud Cheaib | L | 0-3 |
| Challenger Ochsenhausen | 2021/01/25 07:30 | Liang Qiu v Florian Bluhm | L | 2-3 |
| Challenger Ochsenhausen | 2021/01/15 13:10 | Dauud Cheaib v Liang Qiu | L | 3-2 |
| Challenger Ochsenhausen | 2021/01/15 12:25 | Evgueni Chtchetinine v Liang Qiu | W | 0-3 |
| Challenger Ochsenhausen | 2021/01/15 09:30 | Liang Qiu v Dillon Chambers | W | 3-1 |
| Challenger Ochsenhausen | 2021/01/15 07:30 | Liang Qiu v Evgueni Chtchetinine | L | 0-3 |
| Challenger Ochsenhausen | 2021/01/14 10:50 | Liang Qiu v Christopher Ligocki | W | 3-0 |
| Challenger Ochsenhausen | 2021/01/14 08:10 | Florian Bluhm v Liang Qiu | L | 3-1 |
| Challenger Ochsenhausen | 2021/01/25 10:50 | Dennis Klein v Juan Perez | W | 3-2 |
| Challenger Ochsenhausen | 2021/01/25 08:50 | Dennis Klein v Francisco Sanchi | W | 3-0 |
| Dusseldorf Masters | 2020/07/10 15:30 | Nils Hohmeier v Dennis Klein | L | 4-1 |
| Polish Open | 2020/03/11 13:00 | Dennis Klein v Marco Golla | W | 3-0 |
| German Open | 2020/01/28 09:15 | Dennis Klein v Daniel Gonzalez | W | 4-1 |
| German Open | 2019/10/08 11:00 | Wang-Wei Peng v Dennis Klein | L | 4-1 |
| Serbia Open | 2019/05/02 09:35 | Dennis Klein v Jakub Zelinka | W | 3-1 |
| Serbia Open | 2019/05/01 15:40 | Dennis Klein v Yuriy Nadolnyy | W | 3-1 |