Jae Sik Kim defeated Seung Ho Ji 7-6 1-6 6-4 in the Korea Masters 4 round of 32 on hard. The upset overturned the form book — Seung Ho Ji came in leading the head-to-head 1–0. Jae Sik Kim claimed a first win over Seung Ho Ji in two meetings, narrowing the head-to-head to 1–1.
Sik Kim J. came through in three sets.
Hard: Sik Kim J. leads 1–0 · Clay: Ho Ji S. leads 1–0