Yumi Miyazaki defeated Maya Kato 6-2 6-3 in the Tokyo 10K round of 32 on carpet. The upset overturned the form book — Maya Kato came in leading the head-to-head 1–0. Yumi Miyazaki claimed a first win over Maya Kato in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2011-06-27 | Pattaya 10K | R32 | hard | Maya Kato | 6-7(6) 6-2 7-6(5) |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.