Chin Wei Chan defeated Mi Yoo 3-6 6-0 6-2 in the Changwon 25K qualifying round on hard. The upset overturned the form book — Mi Yoo came in leading the head-to-head 2–1. Chin Wei Chan narrowed the head-to-head to 2–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-03-17 | Shenzhen 10K | QF | hard | Chin Wei Chan | 6-3 1-6 6-4 |
| 2013-09-09 | Incheon 25K | R32 | hard | Mi Yoo | 6-2 7-6(4) |
| 2006-11-13 | Kaohsiung 75K | R32 | hard | Mi Yoo | 6-1 6-2 |
Averages over each player's completed matches in the selected window (14 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