Stadium: Court 12 Round: 25 Ground: Synthetic outdoor
| ITF Women Karuizawa Qual | 2018/05/21 01:30 | Kanako Morisaki v Mana Kawamura | 5-7,6-4,6-3 |
| ITF Women Kurume | 2018/05/15 02:50 | Kanako Morisaki v Arina Rodionova | 0-6,4-6 |
| ITF Women Osaka Qual | 2018/04/07 04:00 | Kanako Morisaki v Mayuka Aikawa | 6-7,3-6 |
| ITF Women Nishi-Tama | 2018/03/22 04:25 | Na Ri Kim v Kanako Morisaki | 1-6,7-5,6-2 |
| ITF Women Nishi-Tama | 2018/03/20 04:50 | Haruna Arakawa v Kanako Morisaki | 5-7,2-6 |
| ITF Women Nishi-Tama | 2018/03/19 01:00 | Kanako Morisaki v Akari Inoue | 6-1,6-2 |
| ITF Women Nishi-Tama | 2018/03/18 03:00 | Kanako Morisaki v Erika Matsuda | 6-1,6-4 |
| ITF Women Nishi-Tama | 2018/03/17 05:30 | Kanako Morisaki v Sakura Hondo | 6-2,6-1 |
| ITF Women Karuizawa Qual | 2018/05/21 02:55 | Yukina Saigo v Chihiro Takayama | 6-1,6-1 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Yukina Saigo v Sakura Hondo | 3-6,6-4,5-7 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Moyuka Uchijima v Yukina Saigo | 6-1,3-6,1-6 |
| ITF Women Fukuoka Qual | 2018/05/07 03:55 | Yukina Saigo v Erina Hayashi | 4-6,5-7 |
| ITF Women Fukuoka Qual | 2018/05/06 04:30 | Yukina Saigo v Nagisa Imamura | 7-5,6-4 |
| ITF Women Osaka Qual | 2018/04/09 03:05 | Ya-Hsuan Lee v Yukina Saigo | 6-2,6-2 |
| ITF Women Osaka Qual | 2018/04/08 03:30 | Haruna Arakawa v Yukina Saigo | 5-7,3-6 |
| ITF Women Osaka Qual | 2018/04/08 01:00 | Yukina Saigo v Alina Silich | 7-6,6-4 |