Stadium: Court 2 Round: 62 Ground: Hardcourt outdoor
| ITF Women Nishi-Tama | 2018/03/21 02:00 | Mami Hasegawa v Makoto Yamaguchi | 6-4,6-2 |
| ITF Women Hamamatsu Qual | 2017/10/14 00:00 | Makoto Yamaguchi v Ayumi Koshiishi | 1-6,4-6 |
| ITF Women Nishi-Tama | 2017/03/18 02:00 | Kumi So v Makoto Yamaguchi | 6-2,6-2 |
| ITF Women Kofu Qual | 2018/03/24 00:30 | Aoiko Goto v Yuki Kristina Chiang | 1-6,0-6 |
| ITF Women Hamamatsu Qual | 2017/10/16 02:00 | Aoiko Goto v Ayumi Koshiishi | 0-6,2-6 |