Cristobal Saavedra Corvalan defeated Juan Martin Aranguren 6-4 6-3 in the Chile F5 qualifying round on clay. The upset overturned the form book — Juan Martin Aranguren came in leading the head-to-head 1–0. Cristobal Saavedra Corvalan claimed a first win over Juan Martin Aranguren in two meetings, levelling the head-to-head at 1–1.
Saavedra Corvalan C. took it in straight sets.
Cristobal Saavedra Corvalan beat Juan Martin Aranguren 6-4 6-3. Umpiry, "Cristobal Saavedra Corvalan vs Juan Martin Aranguren — Chile F5 Qualifying Round", https://umpiry.com/match/2012-05-21/aranguren-vs-corvalan-chile-f5-qf?utm_source=cite (as of 21 May 2012).