Ha Young Ji defeated Hyojung Yea 6-2 6-1 in the Goyang 25K q32 on hard. The upset overturned the form book — Hyojung Yea came in leading the head-to-head 3–0. Ha Young Ji claimed a first win over Hyojung Yea in four meetings, narrowing the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2014-05-26 | Changwon 25K | Q32 | hard | Hyojung Yea | 6-3 6-2 |
| 2012-10-22 | Seoul 25K | Q16 | hard | Hyojung Yea | 6-3 6-2 |
| 2011-05-23 | Changwon 25K | Q64 | hard | Hyojung Yea | 6-2 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.