Guillermo Hormazabal defeated Arthur De Greef 6-3 6-3 in the Chile F9 qualifying round on clay.
Hormazabal G. took it in straight sets.
Guillermo Hormazabal beat Arthur De Greef 6-3 6-3. Umpiry, "Guillermo Hormazabal vs Arthur De Greef — Chile F9 Qualifying Round", https://umpiry.com/match/2011-10-17/greef-vs-hormazabal-chile-f9-qf?utm_source=cite (as of 17 October 2011).