Guillermo Rivera Aranguiz defeated Daniel Stahl 6-4 6-4 in the Chile F7 round of 32 on clay.
Rivera Aranguiz G. took it in straight sets.
Guillermo Rivera Aranguiz beat Daniel Stahl 6-4 6-4. Umpiry, "Guillermo Rivera Aranguiz vs Daniel Stahl — Chile F7 Round of 32", https://umpiry.com/match/2012-06-04/aranguiz-vs-stahl-chile-f7-r32?utm_source=cite (as of 4 June 2012).