Ivo Karlovic defeated Mackenzie Mcdonald 6-3 6-4 in the US Open qualifying round of 128 on hard. The result followed the form book — Ivo Karlovic came in defending last year's round of 128.
Karlovic I. took it in straight sets.
Ivo Karlovic beat Mackenzie Mcdonald 6-3 6-4. Umpiry, "Ivo Karlovic vs Mackenzie Mcdonald — US Open Qualifying Round of 128", https://umpiry.com/match/2013-08-20/karlovic-vs-mcdonald-us-open-q128?utm_source=cite (as of 20 August 2013).