Renzo Olivo, Argentina, def. Inigo Cervantes, Spain, 7-6 (6), 6-4.
Guido Pella, Argentina, def. Guilherme Clezar, Brazil, 6-2, 6-3.
Gastao Elias, Portugal, def. Orlando Luz, Brazil, 6-2, 7-5.
Julio Peralta, Chile, and Horacio Zeballos (2), Argentina, def. Andres Molteni and Diego Schwartzman, Argentina, 6-4, 6-3.
Simone Bolelli and Fabio Fognini, Italy, def. Federico Delbonis and Maximo Gonzalez, Argentina, 3-6, 6-1, 10-8.
Rogerio Dutra Silva and Andre Sa, Brazil, def. Thomaz Bellucci and Thiago Monteiro, Brazil, 6-3, 6-4.
This story has been automatically published from the Associated Press wire which uses US spellings