Artem Sitak defeated Walter Valarezo 6-4 6-4 in the Mexico F7 round of 32 on hard.
Sitak A. took it in straight sets.
Artem Sitak beat Walter Valarezo 6-4 6-4. Umpiry, "Artem Sitak vs Walter Valarezo — Mexico F7 Round of 32", https://umpiry.com/match/2011-06-13/sitak-vs-valarezo-mexico-f7-r32?utm_source=cite (as of 13 June 2011).