| 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 | 2024/06/27 11:30 | Sven Happek v Dennis Klein | L | 0-3 |
| Challenger Series TT | 2024/06/27 10:00 | Sven Happek v Hannes Hormann | L | 2-3 |
| Challenger Series TT | 2024/06/27 08:00 | Marco Stefanidis v Sven Happek | L | 3-2 |
| Challenger Series TT | 2024/06/06 15:00 | Sven Happek v Szilard Kanabe | W | 3-0 |
| Challenger Series TT | 2024/06/06 13:30 | Sven Happek v Jon Ander Guerricabeitia | W | 3-0 |
| Challenger Series TT | 2024/06/06 12:00 | Sven Happek v Siddharta Almeida | W | 3-2 |
| Challenger Series TT | 2024/06/06 10:30 | Sven Happek v Damian Zech | W | 3-1 |
| Challenger Series TT | 2024/06/06 07:30 | Oleksii Dehtiarov v Sven Happek | W | 1-3 |
| Challenger Series TT | 2024/06/27 12:00 | Marco Stefanidis v Liang Qiu | W | 0-3 |
| Challenger Series TT | 2024/06/27 09:00 | Samuel Kulczycki v Liang Qiu | L | 3-2 |
| Challenger Series TT | 2024/06/27 07:00 | Guillaume Alcayde v Liang Qiu | L | 3-2 |
| Challenger Series TT | 2024/04/30 12:45 | Dennis Klein v Liang Qiu | L | 3-0 |
| Challenger Series TT | 2024/04/30 11:20 | Mohammed Javad Sohrabi v Liang Qiu | W | 1-3 |
| Challenger Series TT | 2024/04/30 08:15 | Dennis Klein v Liang Qiu | L | 3-1 |
| Challenger Series TT | 2024/04/30 07:05 | Reda Nemras v Liang Qiu | W | 1-3 |
| Challenger Series TT | 2024/04/29 15:50 | Tobias Slanina v Liang Qiu | W | 0-3 |