Round: 27 Ground: Hardcourt outdoor
| ITF M15 Tsukuba MD | 2019/03/27 04:40 | Nishiwaki/Ogura v Ishigure/Tagata | 3-6,5-7 |
| ITF M15 Tsukuba MD | 2019/03/27 05:10 | Lee/Wang v Hazawa/Niki | 4-6,3-6 |
| ITF M15 Kofu MD | 2019/03/22 05:30 | Ehara/Katayama v Hazawa/Niki | 6-4,6-4 |
| ITF M15 Kofu MD | 2019/03/21 09:15 | Ito/Mochizuki v Hazawa/Niki | 4-6,2-6 |
| ITF M15 Kofu MD | 2019/03/19 06:10 | Ichikawa/Tajima v Hazawa/Niki | 2-6,3-6 |