Stadium: Court 3 Round: 25
| ITF Women Gifu | 2018/05/04 03:20 | Moyuka Uchijima v Momoko Kobori | 4-6,6-3,6-4 |
| ITF Women Gifu | 2018/05/03 02:00 | Momoko Kobori v Inoue, Miyabi | 6-3,6-3 |
| ITF Women Gifu | 2018/05/01 01:00 | Mei Yamaguchi v Momoko Kobori | 6-4,3-6,3-6 |
| ITF Women Osaka | 2018/04/12 01:00 | Shiho Akita v Momoko Kobori | 3-6,6-2,6-2 |
| ITF Women Osaka | 2018/04/11 01:00 | Momoko Kobori v Ayano Shimizu | 6-4,6-4 |
| ITF Women Kashiwa | 2018/04/03 02:35 | Na-Lae Han v Momoko Kobori | 6-3,6-0 |
| ITF Women Kashiwa Qual | 2018/04/02 02:35 | Momoko Kobori v Jeong, Sunam | 6-0,6-2 |
| ITF Women Kashiwa Qual | 2018/04/01 05:00 | Momoko Kobori v Chiang, Yuki Kristina | 6-2,6-3 |
| ITF Women Kashiwa Qual | 2018/04/01 03:00 | Zhang, Yuxuan v Naho Sato | 3-6,6-2,7-5 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/22 04:45 | Sarah Rebecca Sekulic v Naho Sato | 6-4,7-5 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/21 03:55 | Naho Sato v Robillard-Millette, Charlotte | 6-2,7-5 |
| Yokohama, Singles Qualifying W-WITF-JPN-01B | 2018/03/04 05:30 | Akiko Omae v Naho Sato | 6-2,6-2 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/17 09:00 | Naho Sato v Perper, Alexandra | 1-6,5-7 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/16 13:00 | Naho Sato v Guiomar Maristany Zuleta De Reales | 7-5,4-6,6-4 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/16 09:00 | Naho Sato v Marina Bassols Ribera | 6-2,6-0 |
| Manacor (Mallorca), Singles Quali W-WITF-ESP-01A | 2018/02/15 10:55 | Paigina, Marta v Naho Sato | 5-7,2-6 |