Stadium: Court 7 Round: 25
| ITF Women Hong Kong | 2018/01/02 03:50 | Mitsumi Kawasaki v Kwan Yau Ng | 5-7,5-7 |
| ITF Women Nanjing Qual | 2018/04/02 02:00 | Kwan Yau Ng v Emma Raducanu | 4-6,1-6 |
| ITF Women Nanjing Qual | 2018/04/01 02:00 | Kwan Yau Ng v Qian Yang | 6-4,6-1 |
| ITF Women Kofu Qual | 2018/03/24 04:00 | Jia-Qi Kang v Kwan Yau Ng | 6-0,2-6,7-5 |
| ITF Women Nishi-Tama | 2018/03/17 04:00 | Michiru Furuya v Kwan Yau Ng | 6-2,7-5 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Kwan Yau Ng v Sunam Jeong | 2-6,5-7 |
| ITF Women Xiamen | 2018/02/26 02:00 | Kwan Yau Ng v Zoe Gwen Scandalis | 3-6,1-6 |
| ITF Women Xiamen | 2018/02/25 02:00 | Kwan Yau Ng v Jiahuan He | 6-2,6-1 |
| 2018 Fed Cup | 2018/02/07 05:55 | Yulia Putintseva v Kwan Yau Ng | 6-1,6-0 |
| ITF Women Kofu Qual | 2018/03/25 02:30 | Erika Sema v Mitsumi Kawasaki | 6-0,6-2 |
| ITF Women Kofu Qual | 2018/03/24 03:00 | Chinatsu Shimizu v Mitsumi Kawasaki | 3-6,6-4,2-6 |
| ITF Women Nishi-Tama | 2018/03/19 01:00 | Mitsumi Kawasaki v Chisa Hosonuma | 6-1,4-6,2-6 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Mitsumi Kawasaki v Yumeko Yoshitomi | 6-1,6-0 |
| ITF Women Nishi-Tama | 2018/03/17 03:00 | Mitsumi Kawasaki v Shiho Shibata | 7-5,7-5 |
| ITF Women Toyota Qual | 2018/03/11 03:30 | Mitsumi Kawasaki v Misa Eguchi | 0-6,0-6 |
| ITF Women Toyota Qual | 2018/03/10 03:00 | Sakura Hondo v Mitsumi Kawasaki | 1-6,4-6 |
| ITF Women Hong Kong | 2018/01/02 03:50 | Mitsumi Kawasaki v Kwan Yau Ng | 5-7,5-7 |