Stadium: Court 2 Round: 62
| ITF Women Kofu Qual | 2018/03/24 00:30 | Mei Yamaguchi v Suzuho Oshino | 6-1,7-6 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Rika Fujiwara v Suzuho Oshino | 7-5,6-0 |
| ITF Women Yokohama Qual | 2018/03/04 06:00 | Shiho Akita v Suzuho Oshino | 6-4,7-5 |
| ITF Women Tokyo Qual | 2017/11/04 01:00 | Sunam Jeong v Suzuho Oshino | 6-2,6-2 |
| ITF Women Hamamatsu | 2017/10/18 04:10 | Chihiro Muramatsu v Suzuho Oshino | 6-0,6-0 |
| ITF Women Hamamatsu Qual | 2017/10/17 06:00 | Suzuho Oshino v Rion Itaya | 6-4,6-7,7-5 |
| ITF Women Hamamatsu Qual | 2017/10/16 02:00 | Suzuho Oshino v Mayuka Aikawa | 6-4,6-7,6-4 |
| ITF Women Hamamatsu Qual | 2017/10/14 00:00 | Suzuho Oshino v Nagisa Suzuki | 6-0,6-3 |
| ITF Women Kofu Qual | 2018/03/25 02:30 | Mami Hasegawa v Kotomi Takahata | 6-2,7-6 |
| ITF Women Kofu Qual | 2018/03/24 04:00 | Chie Kezuka v Kotomi Takahata | 4-6,5-7 |
| ITF Women Nishi-Tama | 2018/03/19 01:00 | Kotomi Takahata v Michiru Furuya | 7-6,5-7,4-6 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Kotomi Takahata v Kiko Nishizato | 6-3,6-3 |
| ITF Women Nishi-Tama | 2018/03/17 04:00 | Kotomi Takahata v Sae Haraguchi | 6-1,6-1 |
| ITF Women Burnie Qual | 2018/01/27 23:00 | Jia Qi Ren v Kotomi Takahata | 6-7,6-3,6-1 |
| ITF Women Toyota Qual | 2017/11/12 01:40 | Megumi Nishimoto v Kotomi Takahata | 6-3,2-6,6-3 |
| ITF Women Makinohara | 2017/10/11 00:30 | Kotomi Takahata v Naomi Cheong | 0-6,1-6 |