Nam Hoon Kim defeated Eui Jong Chang 6-4 6-4 in the Korea Masters 4 qualifying round on hard. The upset overturned the form book — Eui Jong Chang came in leading the head-to-head 1–0, but Nam Hoon Kim had been the form player, winning 2 of their last 4 on hard. Nam Hoon Kim claimed a first win over Eui Jong Chang in two meetings, narrowing the head-to-head to 1–1.
Hoon Kim N. took it in straight sets.
Hard: Hoon Kim N. leads 1–0 · Clay: Jong Chang E. leads 1–0