Yuanfeng Li defeated John Michael Busch 6-1 6-1 in the USA F16 qualifying round of 128 on clay.
Li Y. took it in straight sets.
Yuanfeng Li beat John Michael Busch 6-1 6-1. Umpiry, "Yuanfeng Li vs John Michael Busch — USA F16 Qualifying Round of 128", https://umpiry.com/match/2013-06-17/busch-vs-li-usa-f16-q128?utm_source=cite (as of 17 June 2013).