Guido Andreozzi defeated Stefan Kozlov 6-4 6-1 in the US Open qualifying round of 128 on hard. The result followed the form book — Guido Andreozzi came in leading the head-to-head 1–0, defending last year's round of 128. Guido Andreozzi extended the head-to-head to 2–0.
Andreozzi G. took it in straight sets.
Guido Andreozzi beat Stefan Kozlov 6-4 6-1. Umpiry, "Guido Andreozzi vs Stefan Kozlov — US Open Qualifying Round of 128", https://umpiry.com/match/2017-08-22/andreozzi-vs-kozlov-us-open-q128?utm_source=cite (as of 22 August 2017).