Guillermo Rivera Aranguiz defeated Vicente Bronstein 6-3 6-2 in the Ecuador F3 round of 32 on clay.
Rivera Aranguiz G. took it in straight sets.
Guillermo Rivera Aranguiz beat Vicente Bronstein 6-3 6-2. Umpiry, "Guillermo Rivera Aranguiz vs Vicente Bronstein — Ecuador F3 Round of 32", https://umpiry.com/match/2012-08-27/aranguiz-vs-bronstein-ecuador-f3-r32?utm_source=cite (as of 27 August 2012).