Miki Miyamura defeated Kyoka Okamura 4-6 7-5 6-3 in the Kofu $10K qualifying round on hard. The upset overturned the form book — Kyoka Okamura came in leading the head-to-head 2–0, but Miki Miyamura had been the form player, winning 3 of their last 5 on hard. Miki Miyamura claimed a first win over Kyoka Okamura in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-03-23 | Nishi Tama $10K | QF | hard | Kyoka Okamura | 6-1 6-4 |
| 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.