So Jung Kim defeated Tomoko Yonemura 4-6 6-4 7-5 in the Ibaraki 25K round of 32 on hard. The upset overturned the form book — Tomoko Yonemura came in leading the head-to-head 1–0, but So Jung Kim had been the form player, winning 3 of their last 8 on hard. So Jung Kim claimed a first win over Tomoko Yonemura in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2010-04-26 | Gifu 50K | R16 | hard | Tomoko Yonemura | 6-3 6-4 |
Averages over each player's completed matches in the selected window (5 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