Stadium: Court 1 Round: 44 Ground: Hardcourt outdoor
| ITF China F11 Qual | 2018/07/14 02:50 | Wai Yu Kai v Xiaoyu He | 6-2,6-2 |
| ITF China F10 Qual | 2018/07/07 02:00 | Weibowen Zou v Wai Yu Kai | 6-3,7-6 |
| ITF China F9 Qual | 2018/07/01 04:00 | Bingyu Yu v Wai Yu Kai | 6-2,6-1 |
| ITF Hong Kong F1 | 2018/06/26 02:00 | Hong Kit Wong v Wai Yu Kai | 6-4,6-4 |
| ITF Hong Kong F1 Qual | 2018/06/24 03:25 | Alex Hunt v Wai Yu Kai | 2-6,1-6 |
| ITF Hong Kong F1 Qual | 2018/06/23 02:00 | Wai Yu Kai v Sam Ryan Ziegann | 6-3,6-3 |
| ITF China F5 Qual | 2018/05/07 04:20 | Chukang Wang v Wai Yu Kai | 6-4,6-3 |
| ITF China F5 Qual | 2018/05/05 08:55 | Wai Yu Kai v Chuanqi Su | 6-1,6-0 |