Hyun Hui Hong defeated Su Jeong Jang 6-4 6-1 in the Goyang $25K round of 16 on hard. The result followed the form book — Hyun Hui Hong came in leading the head-to-head 2–1. Hyun Hui Hong extended the head-to-head to 3–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2015-05-18 | Seoul $50K | R32 | hard | Su Jeong Jang | 7-6(4) 6-1 |
| 2014-05-26 | Changwon 25K | SF | hard | Hyun Hui Hong | 6-3 6-4 |
| 2010-07-05 | Pattaya 10K | R32 | hard | Hyun Hui Hong | 6-3 6-4 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.