Stadium: Court 9 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Tianjin | 2023/06/12 03:45 | Yanjie Zheng v Wai Yu Kai | 7-6,4-6,10-1 |
| ITF M15 Tianjin | 2023/06/11 01:00 | Shaoyun Liu v Wai Yu Kai | 0-2 |
| Davis Cup | 2020/03/07 14:45 | Maks Kasnikowski v Wai Yu Kai | 1-6,6-2,10-3 |
| ITF M15 Monastir | 2020/02/25 10:15 | Nino Ehrenschneider v Wai Yu Kai | 6-4,6-1 |
| ITF M15 Monastir | 2020/02/18 09:00 | Wai Yu Kai v Quentin Folliot | 1-6,1-6 |
| ITF M15 Monastir | 2020/02/10 08:30 | Stefan Palosi v Wai Yu Kai | 6-4,6-4 |
| ITF M15 Monastir | 2020/02/09 08:00 | Jing L Weng v Wai Yu Kai | 1-6,2-6 |
| ITF M15 Monastir | 2020/02/05 11:40 | Mohamed Aziz Dougaz v Wai Yu Kai | 6-4,6-1 |