Ying Ying Duan defeated Sung Hee Han 6-3 6-2 in the Changwon 25K qualifying round on hard.
Duan Y. took it in straight sets.
Ying Ying Duan beat Sung Hee Han 6-3 6-2. Umpiry, "Ying Ying Duan vs Sung Hee Han — Changwon 25K Qualifying Round", https://umpiry.com/match/2012-05-21/duan-vs-han-changwon-25k-qf?utm_source=cite (as of 21 May 2012).