Yi Jing Zhao defeated Hyun Hui Hong 6-0 6-0 in the Pattaya 10K qualifying round on hard. The upset overturned the form book — Hyun Hui Hong came in leading the head-to-head 1–0. Yi Jing Zhao claimed a first win over Hyun Hui Hong in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-06-18 | Goyang 25K | R32 | hard | Hyun Hui Hong | 7-5 6-7(3) 7-6(5) |
Averages over each player's completed matches in the selected window (2 vs 1). 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