Stadium: Court 3 Round: 62 Ground: Hardcourt outdoor
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 03:00 | Erika Sema v Kato, Kei | 4-6,6-3,6-0 |
| Toyota, Singles W-WITF-JPN-02A | 2018/03/16 06:30 | Erika Sema v Katherine Sebov | 4-6,1-6 |
| Toyota, Singles W-WITF-JPN-02A | 2018/03/15 01:00 | Fujiwara, Rika v Erika Sema | 5-7,5-7 |
| Toyota, Singles W-WITF-JPN-02A | 2018/03/14 02:45 | Erika Sema v Jia-Jing Lu | 6-4,7-6 |
| Yokohama, Singles W-WITF-JPN-01B | 2018/03/07 01:00 | Erika Sema v Ayla Aksu | 2-6,0-6 |
| Perth, Simples W-WITF-AUS-05A | 2018/02/22 04:45 | Erika Sema v Irina Khromacheva | 2-6,2-6 |
| Perth, Simples W-WITF-AUS-05A | 2018/02/21 03:15 | Inoue, Miyabi v Erika Sema | 4-6,6-7 |
| Perth, Simples W-WITF-AUS-05A | 2018/02/14 05:25 | Hozumi, Eri v Erika Sema | 6-3,5-7,6-1 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 03:00 | Shimizu, Chinatsu v Kawasaki, Mitsumi | 3-6,6-4,2-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/19 01:00 | Kawasaki, Mitsumi v Hosonuma, Chisa | 6-1,4-6,2-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/18 01:00 | Kawasaki, Mitsumi v Yoshitomi, Yumeko | 6-1,6-0 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/17 03:00 | Kawasaki, Mitsumi v Shiho Shibata | 7-5,7-5 |
| ITF Women Toyota Qual | 2018/03/11 03:30 | Kawasaki, Mitsumi v Eguchi, Misa | 0-6,0-6 |
| ITF Women Toyota Qual | 2018/03/10 03:00 | Hondo, Sakura v Kawasaki, Mitsumi | 1-6,4-6 |
| ITF Women Hong Kong | 2018/01/02 03:50 | Kawasaki, Mitsumi v Ng, Kwan Yau | 5-7,5-7 |
| ITF Women Hong Kong | 2017/12/31 02:00 | Kawasaki, Mitsumi v Masuda Karrasch, Sheena Jade | 6-1,6-1 |