Maximo Gonzalez, Argentina, and Nicolas Jarry, Chile, def. Marco Cecchinato, Italy, and Dusan Lajovic, Serbia, 6-4, 6-1.
Nikola Mektic, Croatia, and Horacio Zeballos (3), Argentina, def. Austin Krajicek, United States, and Artem Sitak, New Zealand, 7-6 (1), 6-1.
Roman Jebavy, Czech Republic, and Andres Molteni, Argentina, def. Malek Jaziri, Tunisia, and Leonardo Mayer, Argentina, 2-6, 6-2, 10-6.