Head to Head
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/26 03:20 | 쿠와타, 히로코 v 오카무라, 쿄카 | 6-7,4-6 |
| WTA Guangzhou Qual | 2017/09/16 06:25 | 오카무라, 쿄카 v 쿠와타, 히로코 | 6-4,7-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/26 03:20 | 쿠와타, 히로코 v 오카무라, 쿄카 | 6-7,4-6 |
| WTA Guangzhou Qual | 2017/09/16 06:25 | 오카무라, 쿄카 v 쿠와타, 히로코 | 6-4,7-6 |