Huan Li defeated Xi Bai 6-1 6-2 in the Pingguo 25K qualifying round of 64 on hard.
Li H. took it in straight sets.
Huan Li beat Xi Bai 6-1 6-2. Umpiry, "Huan Li vs Xi Bai — Pingguo 25K Qualifying Round of 64", https://umpiry.com/match/2011-01-10/bai-vs-li-pingguo-25k-q64?utm_source=cite (as of 10 January 2011).