Roberto Carballes Baena, Spain, defeated. Albert Ramos-Vinolas (8), Spain, 7-5, 6-4.
Tomas Martin Etcheverry, Argentina, def. Hugo Dellien, Bolivia, 3-6, 6-2, 6-2.
Camilo Ugo Carabelli, Argentina, defeated. Daniel Elahi Galan, Colombia, 7-6(7), 6-3.
Francisco Cerundolo (5), Argentina, def. Yannick Hanfmann, Germany, 6-2, 4-6, 7-5.
Facundo Diaz Acosta, Argentina, defeated. Federico Coria, Argentina, 7-6 (5), 7-5.
Dusan Lajovic, Serbia, def. Sebastian Baez (6), Argentina, 3-6, 7-6 (5), 6-3.
Andrey Golubev and Aleksandr Nedovyesov, Kazakhstan, def. Lucas Miedler and Alexander Erler, Austria, 6-4, 6-4.
Simone Bolelli and Fabio Fognini (3), Italy, def. Fabien Reboul and Sadio Doumbia, France, 6-1, 6-3.