Di Wu advanced when Daniel Yoo retired 4-6 6-1 1-0 in the China F7 qualifying round. Di Wu extended the head-to-head to 2–0.
Wu D. advanced when Yoo D. retired.
Di Wu beat Daniel Yoo 4-6 6-1 1-0 after Daniel Yoo retired. Umpiry, "Di Wu vs Daniel Yoo — China F7 Qualifying Round", https://umpiry.com/match/2012-05-14/wu-vs-yoo-china-f7-qf?utm_source=cite (as of 14 May 2012).