Stadium: Court 2 Round: 27 Ground: Hardcourt outdoor
| ITF Women Kofu | 2018/06/14 01:00 | Misaki Matsuda v Naho Sato | 1-6,6-3,2-6 |
| ITF Women Kofu | 2018/06/13 02:25 | Naho Sato v Sakura Hondo | 6-3,7-6 |
| 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 Kofu | 2018/06/14 02:45 | Bojana Marinkovic v Shiori Fukuda | 7-6,0-6,3-6 |
| ITF Women Kofu | 2018/06/12 01:00 | Shiori Fukuda v Risa Ushijima | 6-3,6-3 |
| ITF Women Kofu Qual | 2018/06/10 01:30 | Eimi Friant v Shiori Fukuda | 1-6,0-6 |