Woong Sun Jun defeated Liang Chi Huang 7-6 6-3 in the Japan F8 round of 32 on hard. The upset overturned the form book — Liang Chi Huang came in leading the head-to-head 1–0. Woong Sun Jun claimed a first win over Liang Chi Huang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2012-05-21 | Korea F2 | QF | hard | Liang Chi Huang | 7-5 6-3 |
Averages over each player's completed matches in the selected window (6 vs 70). 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. About