Stadium: Court B Round: 26
| 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 |
| ITF Women Karuizawa Qual | 2018/05/21 01:00 | Kawasaki, Mitsumi v Rina Saigo | 1-6,2-6 |
| ITF Women Kyoto | 2018/09/05 01:00 | Morimoto, Nagisa v Hondo, Sakura | 7-5,4-6,6-4 |
| ITF Women Jakarta | 2018/07/15 05:30 | Morimoto, Nagisa v Li, Yuenu | 5-7,6-4,3-6 |
| ITF Women Jakarta | 2018/07/14 03:00 | Morimoto, Nagisa v Saumya Vig | 7-5,6-4 |
| ITF Women Daegu Qual | 2018/06/18 01:00 | Yanni Liu v Morimoto, Nagisa | 6-2,6-1 |
| ITF Women Daegu Qual | 2018/06/17 01:00 | Kim, Sandeul v Morimoto, Nagisa | 1-6,0-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Morimoto, Nagisa v Hasegawa, Mami | 6-4,2-6,2-6 |
| ITF Women Gyeongsan Qual | 2018/06/10 02:00 | Morimoto, Nagisa v Lee, Han Byeol | 6-0,6-3 |
| ITF Women Sangju Qual | 2018/06/03 01:00 | Morimoto, Nagisa v Sakura Hosogi | 4-6,6-2,5-7 |