| ITF Women Yokohama Qual | 2018/03/06 01:00 | Shiho Akita v Yexin Ma | 2-6,6-4,1-6 |
| ITF Women Yokohama Qual | 2018/03/04 06:00 | Shiho Akita v Suzuho Oshino | 6-4,7-5 |
| ITF Women Launceston Qual | 2018/02/04 23:00 | Shiho Akita v Alexandra Bozovic | 6-2,3-6,2-6 |
| ITF Women Launceston Qual | 2018/02/04 03:00 | Shiho Akita v Madison Frahn | 6-0,6-2 |
| ITF Women Burnie Qual | 2018/01/28 03:30 | Anastasia Pivovarova v Shiho Akita | 6-3,6-3 |
| ITF Women Tokyo | 2017/11/09 01:30 | Dalma Galfi v Shiho Akita | 6-4,7-5 |
| ITF Women Tokyo | 2017/11/07 01:00 | Na Ri Kim v Shiho Akita | 6-7,2-6 |
| ITF Women Makinohara | 2017/10/14 01:00 | Ayano Shimizu v Shiho Akita | 7-5,6-4 |
| ITF Women Tokyo Qual | 2017/11/04 01:00 | Kei Kato v Tori Kinard | 7-6,3-6,1-6 |
| ITF Women Hamamatsu Qual | 2017/10/17 06:00 | Kei Kato v Ange Oby Kajuru | 1-6,4-6 |
| ITF Women Tsukuba Qual | 2017/08/20 00:30 | Kei Kato v Yukina Saigo | 1-6,4-6 |
| ITF Women Tokyo Qual | 2017/06/05 01:00 | Kyoka Okamura v Kei Kato | 6-1,6-1 |
| ITF Women Tokyo Qual | 2017/06/04 02:15 | Moyuka Uchijima v Kei Kato | 5-7,5-7 |
| ITF Women Karuizawa Qual | 2017/05/22 02:55 | Kei Kato v Moyuka Uchijima | 4-6,2-6 |
| ITF Women Karuizawa Qual | 2017/05/21 04:00 | Kei Kato v Ran Miyachi | 6-4,6-0 |
| ITF Women Kurume Qual | 2017/05/15 01:00 | Rika Fujiwara v Kei Kato | 6-0,7-6 |