Stadium: Court 6 Round: 26 Ground: Hardcourt outdoor
| ITF Women Solo | 2018/07/11 02:30 | Suzuho Oshino v Ayaka Okuno | 6-7,4-6 |
| ITF Women Jakarta | 2018/07/18 03:00 | Chihiro Takayama v Suzuho Oshino | 7-6,3-6,2-6 |
| ITF Women Solo | 2018/07/11 02:30 | Suzuho Oshino v Ayaka Okuno | 6-7,4-6 |
| ITF Women Solo | 2018/07/10 07:05 | Anastasia Shaulskaya v Suzuho Oshino | 5-7,1-6 |
| ITF Women Kofu | 2018/06/12 02:25 | Mai Hontama v Suzuho Oshino | 6-3,6-2 |
| ITF Women Karuizawa Qual | 2018/05/20 02:30 | Mana Kawamura v Suzuho Oshino | 6-2,6-2 |
| ITF Women Kurume | 2018/05/17 01:00 | Naomi Broady v Suzuho Oshino | 6-1,6-4 |
| ITF Women Osaka Qual | 2018/04/08 02:00 | Chihiro Muramatsu v Suzuho Oshino | 6-1,6-1 |
| ITF Women Kofu Qual | 2018/03/24 00:30 | Mei Yamaguchi v Suzuho Oshino | 6-1,7-6 |
| ITF Women Jakarta | 2018/07/18 03:00 | Ani Vangelova v Ayaka Okuno | 1-6,1-6 |
| ITF Women Solo | 2018/07/12 03:00 | Mana Ayukawa v Ayaka Okuno | 6-0,4-6,6-3 |
| ITF Women Solo | 2018/07/11 02:30 | Suzuho Oshino v Ayaka Okuno | 6-7,4-6 |
| ITF Women Solo | 2018/07/10 07:20 | Snehal Mane v Ayaka Okuno | 1-6,4-6 |
| ITF Women Daegu | 2018/06/21 01:00 | Hanna Chang v Ayaka Okuno | 6-2,7-5 |
| ITF Women Daegu | 2018/06/20 02:10 | Eunhye Lee v Ayaka Okuno | 6-3,2-6,5-7 |
| ITF Women Daegu Qual | 2018/06/19 01:00 | Ayaka Okuno v Rio Kitagawa | 6-0,7-6 |
| ITF Women Daegu Qual | 2018/06/18 01:00 | Ayaka Okuno v Jin Ju Lee | 6-0,4-6,6-2 |