Estadio: COURT A Round: 28 Ground: Synthetic outdoor
| ITF Makinohara - Femenino | 2016/10/12 02:10 | Ayumi Miyamoto v Momoko Kobori | 7-6,0-6,1-6 |
| ITF Makinohara - Femenino | 2018/10/12 01:00 | Momoko Kobori v Shiho Akita | 7-5,6-2 |
| ITF Makinohara - Femenino | 2018/10/11 02:55 | Momoko Kobori v Mei Yamaguchi | 6-1,6-3 |
| ITF Makinohara - Femenino | 2018/10/10 00:30 | Momoko Kobori v Sakura Hondo | 7-5,6-1 |
| WTA Tokio | 2018/09/15 09:00 | Magda Linette v Momoko Kobori | 7-6,6-3 |
| WTA Hiroshima | 2018/09/09 08:15 | Amanda Anisimova v Momoko Kobori | 6-3,6-3 |
| ITF Nanao - Femenino | 2018/08/29 06:05 | Momoko Kobori v Risa Ushijima | 5-7,2-6 |
| ITF Tsukuba - Femenino | 2018/08/25 03:00 | Xiyu Wang v Momoko Kobori | 4-6,6-3,6-3 |
| ITF Tsukuba - Femenino | 2018/08/24 01:00 | Chihiro Muramatsu v Momoko Kobori | 2-6,3-6 |
| 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 Nanao - Femenino | 2018/08/26 05:00 | Misa Okawa v Ayumi Miyamoto | 7-6,5-7,6-2 |
| ITF Tsukuba - Femenino | 2018/08/19 03:00 | Haruna Arakawa v Ayumi Miyamoto | 4-6,6-4,6-1 |