Chris Letcher defeated Jon Wiegand 7-6 6-4 in the Mexico F5 round of 16 on hard.
Letcher C. took it in straight sets.
Chris Letcher beat Jon Wiegand 7-6(5) 6-4. Umpiry, "Chris Letcher vs Jon Wiegand — Mexico F5 Round of 16", https://umpiry.com/match/2012-04-30/letcher-vs-wiegand-mexico-f5-r16?utm_source=cite (as of 30 April 2012).