Stadium: Court 4 Round: 25 Ground: Synthetic outdoor
| ITF Women Makinohara | 2018/10/11 03:50 | Haruna Arakawa v Shiho Akita | 1-6,4-6 |
| ITF Women Makinohara | 2018/10/09 00:30 | Haruna Arakawa v Honoka Uchiyama | 6-0,6-1 |
| ITF Women Brisbane | 2018/10/01 02:00 | Chihiro Muramatsu v Haruna Arakawa | 6-1,6-4 |
| ITF Women Brisbane | 2018/09/30 07:00 | Yuki Kristina Chiang v Haruna Arakawa | 4-6,3-6 |
| ITF Women Brisbane | 2018/09/30 05:00 | Isabella Bozicevic v Haruna Arakawa | 3-6,4-6 |
| ITF Women Kyoto | 2018/09/08 03:30 | Haruna Arakawa v Himeno Sakatsume | 6-3,3-6,1-6 |
| ITF Women Kyoto | 2018/09/07 03:30 | Haruna Arakawa v Michika Ozeki | 6-3,6-3 |
| ITF Women Kyoto | 2018/09/06 01:00 | Haruna Arakawa v Mitsumi Kawasaki | 6-0,6-3 |