Stadium: COURT A Round: 25 Ground: Synthetic outdoor
| ITF Women Makinohara | 2018/10/08 03:25 | Kotomi Takahata v Suzuho Oshino | 4-6,2-6 |
| ITF Women Makinohara | 2018/10/07 03:00 | Haine Ogata v Suzuho Oshino | 6-1,3-6,2-6 |
| ITF Women Jakarta | 2018/07/19 03:00 | Suzuho Oshino v Ayaka Okuno | 3-6,4-6 |
| 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 Makinohara | 2018/10/08 02:05 | Honoka Kobayashi v Erina Hayashi | 6-7,4-6 |
| ITF Women Yeongwol | 2018/09/05 01:00 | Hanna Chang v Erina Hayashi | 6-1,6-4 |
| ITF Women Kurume | 2018/05/15 03:50 | Erina Hayashi v Abigail Tere-Apisah | 1-6,2-6 |
| ITF Women Fukuoka | 2018/05/09 02:00 | Rika Fujiwara v Erina Hayashi | 6-4,6-4 |
| ITF Women Fukuoka Qual | 2018/05/08 01:00 | Tara Moore v Erina Hayashi | 6-7,6-2,6-3 |
| ITF Women Fukuoka Qual | 2018/05/07 03:55 | Yukina Saigo v Erina Hayashi | 4-6,5-7 |
| ITF Women Fukuoka Qual | 2018/05/06 07:00 | Haruna Sakamoto v Erina Hayashi | 1-6,2-6 |
| ITF Women Gifu Qual | 2018/04/30 01:00 | Hiroko Kuwata v Erina Hayashi | 6-2,7-6 |