Kazusa Ito defeated Yumi Miyazaki 6-1 6-1 in the Nagano 25K round of 32 on carpet. The upset overturned the form book — Yumi Miyazaki came in leading the head-to-head 1–0. Kazusa Ito claimed a first win over Yumi Miyazaki in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-17 | Tokyo 10K | R32 | hard | Yumi Miyazaki | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.