Stadium: Court 5 Round: 25 Ground: Synthetic outdoor
| ITF Women Makinohara | 2018/10/12 01:00 | Momoko Kobori v Shiho Akita | 7-5,6-2 |
| ITF Women Makinohara | 2018/10/11 03:50 | Haruna Arakawa v Shiho Akita | 1-6,4-6 |
| ITF Women Makinohara | 2018/10/09 00:30 | Marina Yudanov v Shiho Akita | 2-6,2-6 |
| ITF Women Nanao | 2018/08/30 03:00 | Jia-Jing Lu v Shiho Akita | 6-3,7-5 |
| ITF Women Nanao | 2018/08/29 06:40 | Shiho Akita v Riko Sawayanagi | 6-7,6-1,7-5 |
| ITF Women Tsukuba | 2018/08/22 00:30 | Shiho Akita v Risa Ushijima | 2-6,2-6 |
| ITF Women Nonthaburi | 2018/08/13 02:00 | Michika Ozeki v Shiho Akita | 6-1,6-2 |
| ITF Women Nonthaburi | 2018/08/06 02:30 | Shiho Akita v Rutuja Bhosale | 6-4,1-6,6-2 |
| ITF Women Hamamatsu | 2018/10/15 04:25 | Ayumi Miyamoto v Rina Saigo | 6-0,6-4 |
| ITF Women Hamamatsu | 2018/10/14 07:00 | Ayumi Miyamoto v Suzuka Furukawa | 6-1,6-4 |
| ITF Women Makinohara | 2018/10/13 01:00 | Momoko Kobori v Ayumi Miyamoto | 6-0,4-6,6-3 |
| ITF Women Makinohara | 2018/10/12 01:00 | Ayumi Miyamoto v Michika Ozeki | 6-4,7-6 |
| ITF Women Makinohara | 2018/10/11 00:30 | Mai Hontama v Ayumi Miyamoto | 6-7,4-6 |
| ITF Women Makinohara | 2018/10/08 03:00 | Ayumi Miyamoto v Akari Inoue | 6-2,6-4 |
| ITF Women Makinohara | 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 |