Shuai Zhang defeated Bethanie Mattek Sands 6-3 7-5 in the Seoul round of 16 on hard. Shuai Zhang extended the head-to-head to 2–1.
Zhang S. took it in straight sets.
Zhang S. and Mattek Sands B. faced 2 of the same opponents in the last 12 months. Zhang S. went 1–1 (50%) against them, Mattek Sands B. 1–1 (50%).
Only 2 common opponents — too few for any conclusion. Shown without assessment.