| Challenger Series TT | 2024/02/26 11:30 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/11/14 09:30 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/10/09 11:50 | Liang Qiu v Sven Happek | L | 3-0 |
| Challenger Series TT | 2023/09/18 06:30 | Sven Happek v Liang Qiu | L | 2-3 |
| Challenger Series TT | 2023/06/27 08:30 | Sven Happek v Liang Qiu | L | 0-3 |
| Challenger Series TT | 2023/06/15 07:10 | Sven Happek v Liang Qiu | L | 2-3 |
| Challenger Series TT | 2022/12/19 16:10 | Sven Happek v Liang Qiu | W | 3-0 |
| Challenger Series TT | 2022/10/10 15:10 | Liang Qiu v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/03/21 09:15 | Mike Hollo v Sven Happek | L | 3-0 |
| Challenger Series TT | 2024/03/19 08:10 | Norbert Tauler v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/03/18 18:10 | Ronit Bhanja v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/03/18 16:10 | Armin Alicic v Sven Happek | L | 3-1 |
| Challenger Series TT | 2024/03/18 14:50 | Sven Happek v Amirreza Abbasi | L | 2-3 |
| Challenger Series TT | 2024/03/18 12:50 | Sven Happek v Joon Shim | L | 1-3 |
| Challenger Series TT | 2024/03/18 09:30 | Damian Zech v Sven Happek | W | 2-3 |
| Challenger Series TT | 2024/03/12 09:25 | Akos Kishegyi v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/03/08 11:30 | Alexander Valuch v Liang Qiu | W | 1-3 |
| Challenger Series TT | 2024/03/08 07:30 | Haruki Harada v Liang Qiu | L | 3-0 |
| Challenger Series TT | 2024/03/07 19:30 | Liang Qiu v Carlo Rossi | L | 0-3 |
| Challenger Series TT | 2024/03/07 16:10 | Liang Qiu v Yuma Hoshi | L | 2-3 |
| Challenger Series TT | 2024/03/07 14:10 | Mohammad Mousavi Taher v Liang Qiu | L | 3-2 |
| Challenger Series TT | 2024/03/07 11:30 | Zhenlong Liu v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2024/03/07 08:50 | Kirill Fadeev v Liang Qiu | L | 3-1 |
| Challenger Series TT | 2024/02/27 14:30 | Liang Qiu v Dennis Klein | L | 1-3 |