Round: 26 Ground: Hardcourt outdoor
| ITF Women Gifu WD | 2018/04/30 04:00 | Han/Kajitani v Kim/Zhang | 6-4,6-1 |
| ITF Women Kashiwa WD | 2018/04/07 02:55 | Okamura/Okuno v Han/Kajitani | 6-2,6-2 |
| ITF Women Kashiwa WD | 2018/04/06 04:20 | Han/Kajitani v Han/Zhang | 6-1,7-6 |
| ITF Women Kashiwa WD | 2018/04/05 04:55 | Gumulya/Kumkhum v Han/Kajitani | 6-7,2-6 |
| ITF Women Kashiwa WD | 2018/04/03 05:35 | Han/Kajitani v Fujiwara/Takahata | 7-5,4-6,10-6 |