Benjamin Lock defeated Jonathan Chang 6-2 6-2 in the USA F32 round of 16 on hard.
Lock B. took it in straight sets.
Benjamin Lock beat Jonathan Chang 6-2 6-2. Umpiry, "Benjamin Lock vs Jonathan Chang — USA F32 Round of 16", https://umpiry.com/match/2016-10-17/chang-vs-lock-usa-f32-r16?utm_source=cite (as of 17 October 2016).