Stadium: Court 4 Round: 54
| 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 | 2018/06/20 04:05 | Haruna Arakawa v Zuzana Zlochova | 1-6,6-0,3-6 |
| ITF Women Hong Kong | 2018/06/19 05:20 | Ling Zhang v Haruna Arakawa | 5-7,3-6 |
| ITF Women Kofu | 2018/06/14 01:00 | Haruna Arakawa v Momoko Kobori | 1-6,6-0,3-6 |
| ITF Women Kofu | 2018/06/12 02:40 | Nudnida Luangnam v Haruna Arakawa | 4-6,0-6 |
| ITF Women Antalya | 2018/06/06 08:55 | Haruna Arakawa v Angelina Zhuravleva | 6-4,4-6,2-6 |