Estadio: Indoor 9 Round: 62 Ground: Synthetic outdoor
| ITF Hamamatsu - Femenino | 2018/10/14 07:00 | Ayumi Miyamoto v Suzuka Furukawa | 6-1,6-4 |
| ITF Makinohara - Femenino | 2018/10/13 01:00 | Momoko Kobori v Ayumi Miyamoto | 6-0,4-6,6-3 |
| ITF Makinohara - Femenino | 2018/10/12 01:00 | Ayumi Miyamoto v Michika Ozeki | 6-4,7-6 |
| ITF Makinohara - Femenino | 2018/10/11 00:30 | Mai Hontama v Ayumi Miyamoto | 6-7,4-6 |
| ITF Makinohara - Femenino | 2018/10/08 03:00 | Ayumi Miyamoto v Akari Inoue | 6-2,6-4 |
| ITF Makinohara - Femenino | 2018/10/07 03:00 | Ayumi Miyamoto v Mayuka Aikawa | 6-4,6-0 |
| ITF Women Kyoto | 2018/09/05 06:00 | Michika Ozeki v Ayumi Miyamoto | 6-1,6-2 |
| ITF Women Kyoto | 2018/09/04 10:15 | Jia Qi Ren v Ayumi Miyamoto | 4-6,4-6 |
| ITF Hamamatsu - Femenino | 2018/10/14 08:30 | Rina Saigo v Miyu Nakashima | 6-3,6-1 |
| ITF Hamamatsu - Femenino | 2018/10/14 02:00 | Ryoko Ikeda v Rina Saigo | 6-4,0-6,4-6 |
| ITF Makinohara - Femenino | 2018/10/07 00:30 | Sakura Hondo v Rina Saigo | 6-3,6-2 |
| ITF Women Kyoto | 2018/09/06 02:25 | Himeno Sakatsume v Rina Saigo | 6-1,6-3 |
| ITF Women Kyoto | 2018/09/05 04:45 | Rina Saigo v Ramu Ueda | 6-1,6-1 |
| ITF Women Kyoto | 2018/09/04 03:00 | Rina Saigo v Yu-Ting Hsieh | 6-2,6-1 |
| ITF Women Kyoto | 2018/09/03 01:00 | Rina Saigo v Yuika Sano | 6-4,6-1 |
| ITF Nanao - Femenino | 2018/08/29 03:30 | Rina Saigo v Ayano Shimizu | 2-6,3-6 |