Guillermo Rivera Aranguiz defeated Alex Theiler 6-2 6-3 in the Chile F13 round of 32 on clay. The result followed the form book — Guillermo Rivera Aranguiz came in leading the head-to-head 5–0. Guillermo Rivera Aranguiz extended the head-to-head to 6–0.
Rivera Aranguiz G. took it in straight sets.
Guillermo Rivera Aranguiz beat Alex Theiler 6-2 6-3. Umpiry, "Guillermo Rivera Aranguiz vs Alex Theiler — Chile F13 Round of 32", https://umpiry.com/match/2011-11-14/aranguiz-vs-theiler-chile-f13-r32?utm_source=cite (as of 14 November 2011).