Stadium: Court 13 Round: 25 Ground: Synthetic outdoor
| ITF Women Kyoto | 2017/09/02 01:00 | Funa Kozaki v Miyachi, Ran | 6-3,6-3 |
| ITF Women Nanao Qual | 2017/08/27 01:00 | Miyachi, Ran v Friant, Eimi | 2-6,3-6 |
| ITF Women Karuizawa Qual | 2017/05/21 04:00 | Kato, Kei v Miyachi, Ran | 6-4,6-0 |
| ITF Women Karuizawa Qual | 2017/05/20 04:00 | Miyachi, Ran v Pang, Sarah | 6-3,6-4 |
| ITF Women Hamamatsu Qual | 2016/10/15 03:00 | Haruna Arakawa v Miyachi, Ran | 6-0,6-0 |
| ITF Women Kurume | 2018/05/15 04:05 | Eguchi, Misa v Momoko Kobori | 2-6,6-3,6-0 |
| ITF Women Fukuoka | 2018/05/12 04:20 | Katie Boulter v Momoko Kobori | 6-1,6-4 |
| ITF Women Fukuoka | 2018/05/11 03:35 | Momoko Kobori v Jorovic, Ivana | 3-6,7-5,6-2 |
| ITF Women Fukuoka | 2018/05/10 01:00 | Su Jeong Jang v Momoko Kobori | 6-7,4-6 |
| ITF Women Fukuoka | 2018/05/08 05:25 | Momoko Kobori v Naho Sato | 6-3,2-6,6-1 |
| 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 |