Stadium: I Round: 54
| ITF Women Fukuoka Qual | 2018/05/06 04:15 | Kawasaki, Mitsumi v 마이어스, 아비 | 1-6,2-6 |
| ITF Women Gifu Qual | 2018/04/29 01:00 | 쿠와타, 히로코 v Kawasaki, Mitsumi | 6-0,7-6 |
| ITF Women Osaka Qual | 2018/04/07 01:30 | 마리노, 레베카 v Kawasaki, Mitsumi | 6-1,6-4 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/25 02:30 | 세마, 에리카 v Kawasaki, Mitsumi | 6-0,6-2 |
| 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 호소투마, 치사 | 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 Shibata, Shiho | 7-5,7-5 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/17 01:00 | Sonoda, Ayano v 호소기, 사쿠라 | 4-6,4-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/27 06:30 | Sonoda, Ayano v 타카야마, 치히로 | 0-6,0-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/21 11:00 | Sonoda, Ayano v Altukhova, Polina | 2-6,4-6 |
| Antalya, Singles Qualifying W-WITF-TUR-08A | 2018/01/15 08:00 | Sonoda, Ayano v Schippers, Daniela | 2-6,3-6 |
| Tokyo, Singles Qualifying W-C100-JPN-01A | 2017/11/04 06:15 | Sonoda, Ayano v 청, 나오미 | 0-6,2-6 |
| Hamamatsu, Singles Qualifying W-C25-JPN-06A | 2017/10/16 01:00 | 사이고, 유키나 v Sonoda, Ayano | 6-3,6-2 |
| Hamamatsu, Singles Qualifying W-C25-JPN-06A | 2017/10/14 01:00 | Shindo, Marie v Sonoda, Ayano | 3-6,1-6 |
| Tokyo, Singles Qualifying W-C100-JPN-01A | 2017/06/04 02:15 | Sonoda, Ayano v Fujiwara, Rika | 0-6,1-6 |