| Challenger Ochsenhausen | 2021/12/03 12:25 | Dennis Klein v Liang Qiu | L | 3-2 |
| Challenger Ochsenhausen | 2021/12/02 08:10 | Liang Qiu v Dennis Klein | L | 2-3 |
| Challenger Ochsenhausen | 2021/11/01 07:30 | Dennis Klein v Liang Qiu | L | 3-2 |
| Challenger Ochsenhausen | 2021/06/28 06:30 | Liang Qiu v Dennis Klein | L | 2-3 |
| Challenger Ochsenhausen | 2021/02/25 08:10 | Liang Qiu v Dennis Klein | W | 3-0 |
| Challenger Ochsenhausen | 2021/02/22 13:30 | Dennis Klein v Liang Qiu | W | 1-3 |
| Challenger Ochsenhausen | 2021/01/27 13:30 | Dennis Klein v Liang Qiu | W | 2-3 |
| Challenger Ochsenhausen | 2021/01/25 12:50 | Liang Qiu v Dennis Klein | L | 1-3 |
| Challenger Ochsenhausen | 2022/07/28 14:30 | Mohammadali Rouintanesfahani v Liang Qiu | L | 3-1 |
| Challenger Ochsenhausen | 2022/07/28 11:50 | Evgeny Fadeev v Liang Qiu | W | 0-3 |
| Challenger Ochsenhausen | 2022/07/28 11:50 | Kirill Fadeev v Liang Qiu | W | 0-3 |
| Challenger Ochsenhausen | 2022/07/28 09:50 | Liang Qiu v Michael Engelhardt | W | 3-1 |
| Challenger Ochsenhausen | 2022/07/28 07:50 | Liang Qiu v Damian Zech | W | 3-0 |
| Challenger Ochsenhausen | 2022/03/15 10:10 | Tal Israeli v Liang Qiu | L | 3-0 |
| Challenger Ochsenhausen | 2022/03/15 08:10 | Liang Qiu v Vincent Picard | L | 0-3 |
| Challenger Ochsenhausen | 2022/03/14 20:10 | Tom Jarvis v Liang Qiu | L | 3-0 |
| Challenger Series TT | 2022/07/28 15:10 | Damian Zech v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2022/07/28 12:30 | Mohammadali Rouintanesfahani v Dennis Klein | W | 1-3 |
| Challenger Ochsenhausen | 2022/07/28 11:10 | Elia Schmid v Dennis Klein | L | 3-2 |
| Challenger Ochsenhausen | 2022/07/28 06:30 | Evgeny Fadeev v Dennis Klein | W | 0-3 |
| Challenger Ochsenhausen | 2022/07/28 06:30 | Kirill Fadeev v Dennis Klein | W | 0-3 |
| Challenger Series TT | 2022/07/12 13:30 | Dennis Klein v Amir Hossein Hodaei | L | 1-3 |
| Challenger Series TT | 2022/07/12 11:25 | Dennis Klein v Kirill Fadeev | W | 3-0 |
| Challenger Series TT | 2022/07/12 08:30 | Sven Happek v Dennis Klein | W | 1-3 |