Stadium: Indoor 1 Round: 25
| ITF Women Goyang | 2018/05/13 02:40 | Na-Lae Han v Mayo Hibi | 2-6,7-5,3-6 |
| ITF Women Goyang | 2018/05/11 01:00 | Maia Lumsden v Na-Lae Han | 6-7,2-6 |
| ITF Women Goyang | 2018/05/10 02:55 | Natalija Stevanovic v Na-Lae Han | 4-6,7-6,1-6 |
| ITF Women Goyang | 2018/05/09 01:00 | Sunam Jeong v Na-Lae Han | 4-6,2-6 |
| ITF Women Gifu | 2018/05/03 04:20 | Kurumi Nara v Na-Lae Han | 6-2,6-2 |
| ITF Women Gifu | 2018/05/01 04:05 | Na-Lae Han v Mai Minokoshi | 6-2,6-3 |
| ITF Women Osaka | 2018/04/14 01:00 | Na-Lae Han v Destanee Aiava | 2-6,6-1,4-6 |
| ITF Women Osaka | 2018/04/13 01:00 | Na-Lae Han v Ksenia Lykina | 6-2,4-6,6-1 |
| ITF Women Incheon Qual | 2018/05/15 02:40 | Ayumi Koshiishi v Eunhye Lee | 6-3,3-6,6-1 |
| ITF Women Incheon Qual | 2018/05/14 03:30 | Ayumi Koshiishi v Seo-Kyung Kang | 6-0,6-2 |
| ITF Women Incheon Qual | 2018/05/13 03:30 | Freya Christie v Ayumi Koshiishi | 4-6,2-6 |
| ITF Women Goyang | 2018/05/09 04:55 | Ayumi Koshiishi v So-Ra Lee | 6-7,3-6 |
| ITF Women Goyang Qual | 2018/05/08 05:05 | Yexin Ma v Ayumi Koshiishi | 4-6,3-6 |
| ITF Women Goyang Qual | 2018/05/07 03:30 | Jin Yoo v Ayumi Koshiishi | 3-6,3-6 |
| ITF Women Gifu Qual | 2018/04/29 01:00 | Yuka Asano v Ayumi Koshiishi | 3-6,1-6 |
| ITF Women Osaka Qual | 2018/04/07 01:30 | Ayumi Koshiishi v Akiko Omae | 3-6,2-6 |