Stadium: Indoor 7 Round: 62 Ground: Synthetic outdoor
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 06:30 | Nana Kawagishi v Morimoto, Nagisa | 6-7,6-0,3-6 |
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 02:00 | Morimoto, Nagisa v Nishizato, Kiko | 6-0,4-6,6-1 |
| 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 | 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 |
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 02:00 | Mabuchi, Mami v Matsumoto, Ari | 5-7,0-6 |
| Hamamatsu, Singles W-WITF-JPN-12A | 2018/10/14 01:00 | Takayama, Chihiro v Matsumoto, Ari | 2-6,2-6 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/10 02:25 | Matsumoto, Ari v Imanishi, Miharu | 4-6,2-6 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/08 02:45 | Matsumoto, Ari v Sakura Hosogi | 7-5,6-1 |
| Makinohara, Singles Qualifying W-WITF-JPN-15A | 2018/10/07 03:00 | Matsumoto, Ari v Yui Chikaraishi | 6-3,6-3 |
| Kofu, Singles W-WITF-JPN-02A | 2018/06/13 02:45 | Matsumoto, Ari v Chang, Kai-Chen | 2-6,6-7 |
| Karuizawa, Singles W-WITF-JPN-10A | 2018/05/24 02:40 | Inoue, Miyabi v Matsumoto, Ari | 6-4,6-2 |
| Karuizawa, Singles W-WITF-JPN-10A | 2018/05/22 02:35 | Hosonuma, Chisa v Matsumoto, Ari | 5-7,2-6 |