Sachie Ishizu defeated Ayumi Oka 6-2 3-6 6-3 in the Komoro 10K semi-final on clay. The result followed the form book — Sachie Ishizu came in leading the head-to-head 1–0. Sachie Ishizu extended the head-to-head to 2–0.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-03-22 | Kofu 10K | SF | hard | Sachie Ishizu | 7-6(3) 1-6 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.