Makiho Kozawa defeated Kaori Onishi 6-7 6-2 6-2 in the Kyoto 10K qualifying round on carpet. The upset overturned the form book — Kaori Onishi came in leading the head-to-head 1–0, but Makiho Kozawa had been the form player, winning 3 of their last 4 on carpet. Makiho Kozawa claimed a first win over Kaori Onishi in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-03 | Noto 25K | Q32 | grass | Kaori Onishi | 6-4 4-6 6-3 |