Kazusa Ito defeated Yumi Nakano 7-6 6-3 in the Niigata 10K round of 32 on carpet. The upset overturned the form book — Yumi Nakano came in leading the head-to-head 2–0. Kazusa Ito claimed a first win over Yumi Nakano in three meetings, narrowing the head-to-head to 2–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-19 | Mie 10K | QF | carpet | Yumi Nakano | 6-1 6-3 |
| 2007-06-04 | Tokyo 10K | R32 | hard | Yumi Nakano | 6-4 5-7 6-1 |