Stadium: C Round: 26 Ground: Hardcourt outdoor
| ITF Women Karuizawa | 2018/05/25 01:00 | Kanako Morisaki v Momoko Kobori | 2-6,6-7 |
| ITF Women Nishi-Tama | 2017/03/20 01:00 | Momoko Kobori v Kanako Morisaki | 6-4,7-5 |
| ITF Women Tsukuba | 2018/08/22 00:30 | Kanako Morisaki v Mana Kawamura | 4-6,7-5,7-5 |
| ITF Women Daegu | 2018/06/20 01:00 | Haruka Kaji v Kanako Morisaki | 7-5,6-3 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Kanako Morisaki v Se-Hyun Kim | 1-6,6-3,6-4 |
| ITF Women Daegu Qual | 2018/06/18 03:00 | Kanako Morisaki v Robu Kajitani | 6-2,6-1 |
| ITF Women Gyeongsan | 2018/06/14 02:45 | Chang Liu v Kanako Morisaki | 6-3,0-6,6-0 |
| ITF Women Sangju | 2018/06/08 02:00 | Kanako Morisaki v Sunam Jeong | 2-6,0-6 |
| ITF Women Sangju | 2018/06/06 02:30 | Kanako Morisaki v So Hee Jung | 6-3,6-4 |
| ITF Women Karuizawa | 2018/05/25 01:00 | Kanako Morisaki v Momoko Kobori | 2-6,6-7 |
| ITF Women Tsukuba | 2018/08/21 00:30 | Riko Sawayanagi v Momoko Kobori | 4-6,3-6 |
| WTA Nanchang | 2018/07/23 09:00 | Momoko Kobori v Fang Ying Xun | 6-7,0-6 |
| WTA Nanchang Qual | 2018/07/22 11:00 | Momoko Kobori v Shilin Xu | 6-4,2-6,4-6 |
| WTA Nanchang Qual | 2018/07/21 10:35 | Momoko Kobori v Qianhui Tang | 6-4,6-2 |
| ITF Women Contrexeville | 2018/07/11 09:30 | Ysaline Bonaventure v Momoko Kobori | 6-3,7-6 |
| ITF Women Denain | 2018/07/04 08:30 | Mari Osaka v Momoko Kobori | 6-1,6-1 |
| ITF Women Perigueux | 2018/06/25 09:30 | Momoko Kobori v Cristina Bucsa | 1-6,3-6 |
| ITF Women Montpellier | 2018/06/19 12:30 | Momoko Kobori v Nathaly Kurata | 7-6,3-6,5-7 |