Shiho Hisamatsu defeated Yi Jing Zhao 6-1 6-4 in the Pingguo 25K q16 on hard. The upset overturned the form book — Yi Jing Zhao came in leading the head-to-head 1–0. Shiho Hisamatsu claimed a first win over Yi Jing Zhao in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2007-09-10 | Tokyo 50K | QF | hard | Yi Jing Zhao | 6-2 6-3 |
Averages over each player's completed matches in the selected window (3 vs 2). ATP, WTA & Challenger.
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. Small sample — read as indicative. About