Hyung Chan Lim defeated Byung Kook Kang 2-6 6-1 6-2 in the Korea F1 q32 on hard. The upset overturned the form book — Byung Kook Kang came in leading the head-to-head 1–0. Hyung Chan Lim claimed a first win over Byung Kook Kang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2013-06-03 | Korea F5 | Q16 | hard | Byung Kook Kang | 7-5 6-0 |
Averages over each player's completed matches in the selected window. ATP, WTA & Challenger.