Kyoka Okamura defeated Miki Miyamura 6-1 6-4 in the Nishi Tama $10K quarter-final on hard. Kyoka Okamura extended the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-16 | Kofu $10K | QF | hard | Miki Miyamura | 4-6 7-5 6-3 |
| 2014-07-28 | Wuhan 50K | Q16 | hard | Kyoka Okamura | 6-7(5) 6-0 6-2 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.