Sebastian Korda defeated Alan Kohen 6-4 7-6 in the USA F33 round of 16 on hard.
Korda S. took it in straight sets.
Sebastian Korda beat Alan Kohen 6-4 7-6(2). Umpiry, "Sebastian Korda vs Alan Kohen — USA F33 Round of 16", https://umpiry.com/match/2017-10-09/kohen-vs-korda-usa-f33-r16?utm_source=cite (as of 9 October 2017).