Ying Ying Duan defeated Chang Liu 6-2 6-2 in the Qianshan 10K round of 32 on hard. The result followed the form book — Ying Ying Duan came in leading the head-to-head 1–0. Ying Ying Duan extended the head-to-head to 2–0.
Duan Y. took it in straight sets.
Ying Ying Duan beat Chang Liu 6-2 6-2. Umpiry, "Ying Ying Duan vs Chang Liu — Qianshan 10K Round of 32", https://umpiry.com/match/2009-06-22/duan-vs-liu-qianshan-10k-r32?utm_source=cite (as of 22 June 2009).