Paul Henri Mathieu defeated Christian Harrison 6-0 6-2 6-1 in the US Open round of 128 on hard. The result followed the form book — Paul Henri Mathieu came in defending last year's round of 128.
Mathieu P. took it in straight sets.
Paul Henri Mathieu beat Christian Harrison 6-0 6-2 6-1. Umpiry, "Paul Henri Mathieu vs Christian Harrison — US Open Round of 128", https://umpiry.com/match/2016-08-29/harrison-vs-mathieu-us-open-r128?utm_source=cite (as of 29 August 2016).