Akiko Yonemura defeated Kazusa Ito 6-1 6-1 in the Tokyo 10K round of 32 on hard. The upset overturned the form book — Kazusa Ito came in leading the head-to-head 2–0. Akiko Yonemura claimed a first win over Kazusa Ito in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-09-03 | Noto 25K | QF | grass | Kazusa Ito | 6-2 6-1 |
| 2011-09-12 | Kyoto 10K | F | carpet | Kazusa Ito | 6-3 3-6 6-4 |