Round: 54 Ground: Hardcourt outdoor
| ITF Women Granby Qual | 2018/07/22 20:30 | Akiko Omae v Haruna Arakawa | 6-1,7-6 |
| ITF Women Granby Qual | 2018/07/21 13:00 | Ariana Arseneault v Haruna Arakawa | 4-6,4-6 |
| ITF Women Berkeley | 2018/07/18 18:30 | Sofia Kenin v Haruna Arakawa | 6-0,6-3 |
| ITF Women Berkeley Qual | 2018/07/17 17:00 | Andreea Ghitescu v Haruna Arakawa | 4-6,6-2,6-7 |
| ITF Women Berkeley Qual | 2018/07/15 21:35 | Mylene Mukhar v Haruna Arakawa | 2-6,1-6 |
| ITF Women Honolulu Qual | 2018/07/10 20:00 | Haruna Arakawa v Denise Starr | 7-5,2-6,3-6 |
| ITF Women Honolulu Qual | 2018/07/09 22:40 | Haruna Arakawa v Anastasia Sysoeva | 6-1,6-0 |
| ITF Women Honolulu Qual | 2018/07/08 22:45 | Haruna Arakawa v Warona Mdlulwa | 6-1,6-0 |
| ITF Women Hong Kong | 2018/07/11 02:00 | Michaela Haet v Akari Inoue | 6-2,7-6 |
| ITF Women Hong Kong | 2018/07/09 02:00 | Akari Inoue v Mihika Yadav | 4-6,7-5,7-6 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Yanni Liu v Akari Inoue | 7-6,6-3 |
| ITF Women Daegu Qual | 2018/06/18 02:00 | Qianxin Kong v Akari Inoue | 4-6,3-6 |
| ITF Women Gyeongsan Qual | 2018/06/12 01:00 | Akari Inoue v Eri Shimizu | 6-7,7-6,2-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Akari Inoue v Qianxin Kong | 6-1,5-7,6-3 |
| ITF Women Sangju | 2018/06/06 06:05 | Dan Ni Wang v Akari Inoue | 6-4,7-5 |
| ITF Women Karuizawa Qual | 2018/05/20 01:00 | Natsuho Nakazawa v Akari Inoue | 6-2,3-6,6-4 |