| Challenger Series TT | 2022/10/10 15:10 | Liang Qiu v Sven Happek | W | 1-3 |
| Challenger Series TT | 2022/09/19 11:10 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2022/01/20 15:30 | Liang Qiu v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/12/01 10:10 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2021/11/10 07:30 | Liang Qiu v Sven Happek | L | 3-1 |
| Challenger Ochsenhausen | 2021/10/27 06:30 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2021/09/29 06:30 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Ochsenhausen | 2021/03/31 07:10 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/12/19 14:10 | Marko Panic v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/12/19 11:30 | Dauud Cheaib v Sven Happek | L | 3-1 |
| Challenger Series TT | 2022/12/19 08:50 | Rafael De Las Heras v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/12/15 20:50 | Sven Happek v Dauud Cheaib | L | 0-3 |
| Challenger Series TT | 2022/12/15 18:10 | Sven Happek v Marius Henninger | L | 0-3 |
| Challenger Series TT | 2022/12/15 15:30 | Nikola Grujic v Sven Happek | L | 3-0 |
| Challenger Series TT | 2022/12/15 12:50 | Kirill Fadeev v Sven Happek | L | 3-2 |
| Challenger Series TT | 2022/12/15 10:50 | Sven Happek v Pavol Mego | L | 1-3 |
| Challenger Series TT | 2022/12/19 13:30 | Pavol Mego v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2022/12/19 12:10 | Marko Panic v Liang Qiu | W | 2-3 |
| Challenger Series TT | 2022/12/19 07:30 | Samuel Amann v Liang Qiu | W | 1-3 |
| Challenger Series TT | 2022/10/18 09:30 | Miguel Chamorro v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2022/10/18 08:45 | Liang Qiu v Maciej Kubik | L | 2-3 |
| Challenger Series TT | 2022/10/18 07:10 | Maciej Kubik v Liang Qiu | W | 1-3 |
| Challenger Series TT | 2022/10/17 17:10 | Kenan Hrnic v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2022/10/17 15:10 | Martin Andersen v Liang Qiu | W | 1-3 |