Round: 54 Ground: Hardcourt outdoor
| ITF Women Hong Kong | 2016/07/16 03:00 | 람, 윙 키우 야쿠엘린 v 보조비치, 알렉산드라 | 1-6,1-6 |
| Tokyo, Singles Qualifying W-C100-JPN-01A | 2017/11/04 01:00 | 시미즈, 에리 v Miyahara, Mihoki | 6-2,6-0 |
| Hamamatsu, Singles Qualifying W-C25-JPN-06A | 2017/10/16 02:00 | Itaya, Rion v Miyahara, Mihoki | 6-3,6-4 |
| Makinohara, Singles Qualifying W-C25-JPN-05A | 2017/10/08 00:30 | 호소키, 유카 v Miyahara, Mihoki | 4-6,6-4,6-3 |
| ITF Women Kyoto | 2017/09/02 01:00 | Miyahara, Mihoki v Ando, Yuki | 6-7,6-7 |
| ITF Women Nanao Qual | 2017/08/27 01:00 | Shindo, Marie v Miyahara, Mihoki | 6-2,7-6 |
| ITF Women Tsukuba Qual | 2017/08/20 00:30 | Miyahara, Mihoki v Nishimoto, Megumi | 1-6,0-6 |
| ITF Women Hong Kong | 2017/07/25 06:00 | 예웅, 베니아 v Miyahara, Mihoki | 4-6,6-1,6-3 |
| ITF Women Victoria | 2017/06/22 18:30 | 호, 제시카 v Miyahara, Mihoki | 6-4,6-4 |