Stadium: Court A Round: 27
| ITF Women Kyoto | 2018/09/05 04:55 | Haruna Arakawa v Anri Nagata | 6-2,6-2 |
| ITF Women Kyoto | 2018/09/05 01:00 | Haruna Arakawa v Furuya, Michiru | 6-4,6-2 |
| ITF Women Nanao | 2018/08/28 03:00 | Haruna Arakawa v Mai Hontama | 2-6,7-6,3-6 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/22 00:30 | Ya-Hsuan Lee v Haruna Arakawa | 5-7,6-0,6-0 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/20 01:00 | Haruna Arakawa v Hondo, Sakura | 4-6,6-3,6-3 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 03:00 | Haruna Arakawa v Miyamoto, Ayumi | 4-6,6-4,6-1 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/16 02:00 | Haruna Arakawa v Xiyu Wang | 1-6,1-6 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/15 03:55 | Thamchaiwat, B. v Haruna Arakawa | 4-6,2-6 |
| ITF Women Kyoto | 2018/09/05 07:20 | Kawasaki, Mitsumi v Morimoto, Nagisa | 6-4,6-3 |
| ITF Women Kyoto | 2018/09/05 01:00 | Kanako Osafune v Kawasaki, Mitsumi | 4-6,6-7 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 00:30 | Nagi Hanatani v Kawasaki, Mitsumi | 6-3,6-3 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/05 02:00 | Dabin Kim v Kawasaki, Mitsumi | 7-6,6-3 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/04 02:00 | Kawasaki, Mitsumi v Lisa-Marie Rioux | 7-5,6-4 |
| ITF Women Taipei | 2018/07/25 05:30 | Ng, Kwan Yau v Kawasaki, Mitsumi | 6-4,6-4 |
| ITF Women Hong Kong | 2018/07/09 05:55 | Reina Takahashi v Kawasaki, Mitsumi | 6-0,7-5 |
| Kofu, Singles W-WITF-JPN-02A | 2018/06/12 01:00 | Tanaka, Yuuki v Kawasaki, Mitsumi | 6-0,6-2 |