Yumi Nakano defeated Aya Tanaka 6-2 3-6 7-6 in the Hamamatsu $25K q16 on grass. The upset overturned the form book — Aya Tanaka came in leading the head-to-head 1–0. Yumi Nakano claimed a first win over Aya Tanaka in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-10-12 | Makinohara $25K | Q16 | grass | Aya Tanaka | 6-1 6-1 |