| Challenger Series TT | 2023/11/14 09:30 | Liang Qiu v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/10/09 11:50 | Liang Qiu v Sven Happek | W | 3-0 |
| Challenger Series TT | 2023/09/18 06:30 | Sven Happek v Liang Qiu | W | 2-3 |
| Challenger Series TT | 2023/06/27 08:30 | Sven Happek v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2023/06/15 07:10 | Sven Happek v Liang Qiu | W | 2-3 |
| Challenger Series TT | 2022/12/19 16:10 | Sven Happek v Liang Qiu | L | 3-0 |
| Challenger Series TT | 2022/10/10 15:10 | Liang Qiu v Sven Happek | L | 1-3 |
| Challenger Series TT | 2022/09/19 11:10 | Sven Happek v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2024/02/26 09:30 | Liang Qiu v Dennis Klein | L | 2-3 |
| Challenger Series TT | 2023/12/19 13:05 | Liang Qiu v Damien Llorca | L | 2-3 |
| Challenger Series TT | 2023/12/19 11:30 | Liang Qiu v Benjamin Fruchart | L | 2-3 |
| Challenger Series TT | 2023/12/19 08:50 | Liang Qiu v Damien Llorca | W | 3-1 |
| Challenger Series TT | 2023/12/18 20:10 | Liang Qiu v Adrien Coton | W | 3-2 |
| Challenger Series TT | 2023/12/18 15:30 | Liang Qiu v Damian Zech | W | 3-0 |
| Challenger Series TT | 2023/12/18 13:30 | Liang Qiu v Dennis Klein | W | 3-1 |
| Challenger Series TT | 2023/12/18 10:10 | Daniel Rinderer v Liang Qiu | L | 3-0 |
| Challenger Series TT | 2024/02/26 08:50 | Samuel Amann v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/02/06 13:50 | Sven Happek v Dauud Cheaib | L | 1-3 |
| Challenger Series TT | 2024/02/06 12:25 | Rafael Turrini v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/02/06 11:30 | Sven Happek v Aljaz Godec | W | 3-2 |
| Challenger Series TT | 2024/02/06 08:50 | Sven Happek v Rafael Turrini | L | 0-3 |
| Challenger Series TT | 2024/02/05 20:10 | Sven Happek v Marc Miro Llorente | W | 3-1 |
| Challenger Series TT | 2024/02/05 15:30 | Sven Happek v Makoto Nogami | W | 3-2 |
| Challenger Series TT | 2024/02/05 13:20 | Sven Happek v Damian Zech | W | 3-2 |