Ying Ying Duan defeated Chang Liu 6-0 6-1 in the Qianshan 10K round of 16 on hard. The result followed the form book — Ying Ying Duan came in leading the head-to-head 2–0. Ying Ying Duan extended the head-to-head to 3–0.
Duan Y. took it in straight sets.
Ying Ying Duan beat Chang Liu 6-0 6-1. Umpiry, "Ying Ying Duan vs Chang Liu — Qianshan 10K Round of 16", https://umpiry.com/match/2009-08-24/duan-vs-liu-qianshan-10k-r16?utm_source=cite (as of 24 August 2009).