Jonathan Chang defeated Andrew Watson 6-2 7-6 in the USA F24 qualifying round of 16 on hard.
Chang J. took it in straight sets.
Jonathan Chang beat Andrew Watson 6-2 7-6(6). Umpiry, "Jonathan Chang vs Andrew Watson — USA F24 Qualifying Round of 16", https://umpiry.com/match/2016-07-18/chang-vs-watson-usa-f24-q16?utm_source=cite (as of 18 July 2016).