Stadium: Court 12 Round: 54 Ground: Hardcourt outdoor
| ITF China F5 Qual | 2018/05/07 04:20 | Wang, Chukang v Kai, Wai Yu | 6-4,6-3 |
| ITF China F5 Qual | 2018/05/05 08:55 | Kai, Wai Yu v Su, Chuanqi | 6-1,6-0 |
| ITF China F4 Qual | 2018/04/29 07:20 | Kai, Wai Yu v Chase Ferguson | 6-7,3-6 |
| ITF China F4 Qual | 2018/04/28 06:55 | Winter Meagher v Kai, Wai Yu | 1-6,6-2,4-6 |
| ITF Hong Kong F6 | 2017/12/31 02:00 | Murray, Jack v Kai, Wai Yu | 6-0,6-2 |
| ITF Hong Kong F6 | 2017/12/30 03:00 | Kai, Wai Yu v Tomohiro Masabayashi | 3-6,6-3,6-3 |
| ITF Hong Kong F5 | 2017/12/23 05:00 | Kai, Wai Yu v Saito, Takashi | 1-6,0-6 |
| Hong Kong F4, Simples | 2017/12/16 04:30 | Wang, Huixin v Kai, Wai Yu | 6-0,6-0 |
| ITF Guam F1 | 2018/06/21 01:30 | Sam Ryan Ziegann v Kawakami, Rimpei | 4-6,3-6 |
| ITF Vietnam F3 | 2018/05/12 03:00 | Sam Ryan Ziegann v Bajwa, Paramveer Singh | 2-6,2-6 |
| ITF Vietnam F1 | 2018/04/28 05:00 | Kerdlaphee, Kittirat v Sam Ryan Ziegann | 6-1,6-2 |
| ITF Italy F32 Qual | 2017/09/30 10:00 | Sam Ryan Ziegann v Masala, Matteo | 2-6,1-6 |
| ITF Hungary F6 Qual | 2017/08/20 09:00 | Szappanos, Marton v Sam Ryan Ziegann | 6-2,6-0 |