Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF Women Fukuoka | 2018/05/08 05:25 | Momoko Kobori v Naho Sato | 6-3,2-6,6-1 |
| ITF Women Kashiwa Qual | 2018/04/01 03:00 | Yuxuan Zhang v Naho Sato | 3-6,6-2,7-5 |
| ITF Women Nishi-Tama | 2018/03/22 04:45 | Sarah Rebecca Sekulic v Naho Sato | 6-4,7-5 |
| ITF Women Nishi-Tama | 2018/03/21 03:55 | Naho Sato v Charlotte Robillard-Millette | 6-2,7-5 |
| ITF Women Yokohama Qual | 2018/03/04 05:30 | Akiko Omae v Naho Sato | 6-2,6-2 |
| ITF Women Mallorca | 2018/02/17 09:00 | Naho Sato v Alexandra Perper | 1-6,5-7 |
| ITF Women Mallorca | 2018/02/16 13:00 | Naho Sato v Guiomar Maristany Zuleta De Reales | 7-5,4-6,6-4 |
| ITF Women Mallorca | 2018/02/16 09:00 | Naho Sato v Marina Bassols Ribera | 6-2,6-0 |
| ITF Women Karuizawa | 2018/05/25 02:50 | Miyabi Inoue v Sakura Hondo | 6-3,6-4 |
| ITF Women Karuizawa | 2018/05/24 04:15 | Ayumi Miyamoto v Sakura Hondo | 5-7,1-6 |
| ITF Women Karuizawa | 2018/05/24 01:15 | Sakura Hondo v Yue Yuan | 6-1,6-3 |
| ITF Women Karuizawa Qual | 2018/05/21 02:40 | Sakura Hondo v Reina Takahashi | 6-1,5-7,6-1 |
| ITF Women Karuizawa Qual | 2018/05/20 04:00 | Sakura Hondo v Lisa-Marie Rioux | 3-6,6-1,6-1 |
| ITF Women Kurume | 2018/05/16 01:00 | Haruka Kaji v Sakura Hondo | 6-3,6-3 |
| ITF Women Kurume Qual | 2018/05/15 01:00 | Sakura Hondo v Michika Ozeki | 0-6,6-3,6-2 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Yukina Saigo v Sakura Hondo | 3-6,6-4,5-7 |