Stadium: Indoor 3 Round: 54
| ITF Women Fukuoka Qual | 2018/05/06 05:25 | Chisa Hosonuma v Mihoki Miyahara | 6-1,7-6 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Chie Kezuka v Mihoki Miyahara | 6-2,6-2 |
| ITF Women Hong Kong | 2017/12/24 02:00 | Aldila Sutjiadi v Mihoki Miyahara | 6-1,6-2 |
| ITF Women Hong Kong | 2017/12/23 04:00 | Wing Kiu Jacqueline Lam v Mihoki Miyahara | 4-6,1-6 |
| ITF Women Tokyo Qual | 2017/11/04 01:00 | Eri Shimizu v Mihoki Miyahara | 6-2,6-0 |
| ITF Women Hamamatsu Qual | 2017/10/16 02:00 | Rion Itaya v Mihoki Miyahara | 6-3,6-4 |
| ITF Women Makinohara Qual | 2017/10/08 00:30 | Yuka Hosoki v Mihoki Miyahara | 4-6,6-4,6-3 |
| ITF Women Kyoto | 2017/09/02 01:00 | Mihoki Miyahara v Yuki Ando | 6-7,6-7 |
| ITF Women Kurume Qual | 2017/05/14 00:30 | Meina Aratake v Louise Lampla | 0-6,3-6 |