Stadium: Court 2 Round: 27 Ground: Clay
| ITF Women Osaka WD | 2018/04/13 04:00 | Han/Kobori v Omae/Plipuech | 1-6,3-6 |
| ITF Women Osaka WD | 2018/04/12 03:50 | Hayashi/Takahata v Han/Kobori | 6-2,4-6,8-10 |
| ITF Women Osaka WD | 2018/04/10 04:00 | Kamata/Kitayama v Han/Kobori | 2-6,5-7 |