Stadium: Court 8 Round: 44 Ground: Clay
| ITF M15 Nanchang | 2019/09/29 04:00 | Hanyi Liu v Wai Yu Kai | 4-6,4-6 |
| Davis Cup | 2019/09/15 04:45 | Wai Yu Kai v Chun Hsin Tseng | 2-6,5-7 |
| ITF M25 Hengyang | 2019/06/17 04:15 | Martin Borisiouk v Wai Yu Kai | 3-6,7-5,10-8 |
| ITF M25 Hongkong | 2019/06/12 06:25 | Alexander Crnokrak v Wai Yu Kai | 6-3,6-1 |
| ITF M25 Hongkong | 2019/06/04 05:25 | Shuichi Sekiguchi v Wai Yu Kai | 6-2,6-1 |
| ITF M15 Wuhan | 2019/04/29 03:45 | Wai Yu Kai v Kousuke Ogura | 3-6,4-6 |
| ITF Hong Kong F3 | 2018/12/22 02:00 | Xin Gao v Wai Yu Kai | 6-3,6-2 |
| ITF China F12 Qual | 2018/08/11 02:00 | Hu Liu v Wai Yu Kai | 6-2,6-3 |
| ITF M15 Nanchang | 2019/09/29 02:00 | Jianhui Li v Linang Xiao | 3-6,3-6 |
| ITF M15 Nanchang | 2019/09/25 02:00 | Hao Wu v Linang Xiao | 6-3,6-2 |
| ITF M15 Nanchang | 2019/09/23 06:35 | Bang Shuo Yin v Linang Xiao | 6-7,3-6 |
| ITF M15 Nanchang | 2019/09/23 02:00 | Linang Xiao v Hao Yuan Ng | 6-3,6-2 |
| ITF M15 Nanchang | 2019/09/22 02:00 | Linang Xiao v Zijiang Yang | 6-4,6-2 |
| ITF M25 Kunshan | 2019/07/01 10:35 | Sam Taylor v Linang Xiao | 6-3,6-4 |
| ITF M25 Luzhou | 2019/05/28 03:20 | Haitong Xia v Linang Xiao | 2-6,6-1,10-7 |
| ITF M25 Luzhou | 2019/05/27 07:15 | Linang Xiao v Shuai Xu | 6-2,6-0 |