Seung Ri Sohn defeated Han Cheol Shin 6-3 7-6 in the Korea Masters 4 round of 32 on clay. The upset overturned the form book — Han Cheol Shin came in leading the head-to-head 1–0, but Seung Ri Sohn had been the form player, winning 2 of their last 5 on clay. Seung Ri Sohn claimed a first win over Han Cheol Shin in two meetings, narrowing the head-to-head to 1–1.
Ri Sohn S. took it in straight sets.
Clay: Ri Sohn S. leads 1–0 · Hard: Cheol Shin H. leads 1–0