Wilson Leite defeated Guillermo Rivera Aranguiz 6-4 6-4 in the Chile F16 round of 16 on clay.
Leite W. took it in straight sets.
Wilson Leite beat Guillermo Rivera Aranguiz 6-4 6-4. Umpiry, "Wilson Leite vs Guillermo Rivera Aranguiz — Chile F16 Round of 16", https://umpiry.com/match/2012-12-17/aranguiz-vs-leite-chile-f16-r16?utm_source=cite (as of 17 December 2012).