Stadium: Court 8 Round: 62 Ground: Hardcourt outdoor
| ITF Women Karuizawa Qual | 2018/05/20 01:00 | Yuika Sano v Yui Chikaraishi | 1-6,6-7 |
| ITF Women Gifu Qual | 2018/04/29 02:30 | Kyoka Okamura v Yuika Sano | 6-0,6-0 |
| ITF Women Toyota Qual | 2018/03/11 03:30 | Yuika Sano v Chihiro Muramatsu | 2-6,3-6 |
| ITF Women Toyota Qual | 2018/03/10 03:00 | Chinatsu Shimizu v Yuika Sano | 2-6,4-6 |
| ITF Women Hamamatsu Qual | 2017/10/14 00:00 | Mayuka Aikawa v Yuika Sano | 6-2,6-1 |
| ITF Women Nanao Qual | 2017/08/27 01:00 | Yuika Sano v Yuki Ando | 0-6,0-6 |
| ITF Women Kofu Qual | 2017/06/11 00:00 | Pei-Chi Lee v Yuika Sano | 6-3,6-0 |
| ITF Women Gifu | 2017/05/02 02:30 | Yuika Sano v Fangzhou Liu | 0-6,0-6 |
| ITF Women Kofu Qual | 2018/03/25 04:00 | Kiko Nishizato v Julia Lohoff | 0-6,1-6 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Kotomi Takahata v Kiko Nishizato | 6-3,6-3 |
| ITF Women Antalya | 2018/03/05 07:00 | Daniela Vukovic v Kiko Nishizato | 6-4,6-3 |
| ITF Women Antalya | 2018/03/04 08:30 | Kiko Nishizato v Paula Prehn | 6-1,6-0 |
| ITF Women Antalya | 2018/03/03 08:30 | Ekaterina Ovcharenko v Kiko Nishizato | 2-6,4-6 |
| ITF Women Antalya | 2018/02/25 07:30 | Dainah Cameron v Kiko Nishizato | 3-6,6-3,6-4 |
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Minami Shuto v Kiko Nishizato | 5-7,6-3,6-0 |
| ITF Women Kofu Qual | 2017/06/12 02:00 | Kiko Nishizato v Kimika Sakata | 3-6,2-6 |