Estadio: Court 4 Round: 25 Ground: Synthetic outdoor
| ITF Women Noto | 2016/09/01 02:40 | Ayumi Koshiishi v Momoko Kobori | 1-6,0-6 |
| ITF Makinohara - Femenino | 2017/10/15 04:30 | Ayano Shimizu v Momoko Kobori | 6-3,6-3 |
| ITF Makinohara - Femenino | 2017/10/14 01:00 | Miyabi Inoue v Momoko Kobori | 6-1,2-6,1-6 |
| ITF Makinohara - Femenino | 2017/10/13 00:30 | Momoko Kobori v Kisa Yoshioka | 4-6,6-2,7-6 |
| ITF Makinohara - Femenino | 2017/10/12 00:30 | Momoko Kobori v Ching-Wen Hsu | 6-0,6-2 |
| ITF Makinohara - Femenino | 2017/10/11 03:40 | Momoko Kobori v Karin Kennel | 6-1,7-5 |
| ITF Toowoomba - Femenino | 2017/10/05 01:25 | Momoko Kobori v Chihiro Muramatsu | 1-6,3-6 |
| ITF Toowoomba - Femenino | 2017/10/04 03:35 | Yuuki Tanaka v Momoko Kobori | 2-6,4-6 |
| ITF Brisbane - Femenino | 2017/09/28 02:35 | Zoe Hives v Momoko Kobori | 6-3,6-1 |
| ITF Hamamatsu - Femenino - Clasificación | 2017/10/17 06:00 | Mami Hasegawa v Ayumi Koshiishi | 2-6,6-3,6-7 |
| ITF Hamamatsu - Femenino - Clasificación | 2017/10/16 02:00 | Aoiko Goto v Ayumi Koshiishi | 0-6,2-6 |
| ITF Hamamatsu - Femenino - Clasificación | 2017/10/14 00:00 | Makoto Yamaguchi v Ayumi Koshiishi | 1-6,4-6 |
| ITF Makinohara - Femenino | 2017/10/12 03:20 | Miyabi Inoue v Ayumi Koshiishi | 6-4,6-2 |
| ITF Makinohara - Femenino | 2017/10/10 02:55 | Mayuka Aikawa v Ayumi Koshiishi | 2-6,3-6 |
| ITF Makinohara - Femenino - Clasificación | 2017/10/09 00:30 | Chie Kezuka v Ayumi Koshiishi | 3-6,3-6 |
| ITF Women Kyoto | 2017/09/05 02:40 | Ramu Ueda v Ayumi Koshiishi | 6-4,6-2 |
| ITF Nanao - Femenino | 2017/08/29 02:45 | Ayumi Koshiishi v Miyabi Inoue | 2-6,3-6 |