Jong Sam Chung defeated Tae Hee Kong 4-6 6-1 6-1 in the Korea Masters 4 round of 16 on hard. The upset overturned the form book — Tae Hee Kong came in leading the head-to-head 3–0. Jong Sam Chung claimed a first win over Tae Hee Kong in four meetings, narrowing the head-to-head to 3–1.
Chung J. came through in three sets.
Hard: level 1–1 · Clay: Kong T. leads 2–0