Damir Dzumhur, Bosnia-Herzegovina, def. Dino Prizmic, Croatia, 7-6 (5), 2-6, 6-2.

David Goffin, Belgium, def. Remy Bertola, Switzerland, 3-6, 6-3, 6-4.

Francisco Cerundolo (3), Argentina, def. Martin Damm Jr, United States, 6-4, 7-6 (4).

Tallon Griekspoor, Netherlands, def. Mariano Navone (8), Argentina, 7-6 (4), 7-5.

Clement Chidekh, France, def. Jacob Fearnley, Britain, 7-6 (4), 6-2.

Jan-Lennard Struff, Germany, def. Gauthier Onclin, Belgium, 6-4, 6-2.

Guido Andreozzi, Argentina, and Manuel Guinard (1), France, def. Michael Geerts and Joran Vliegen, Belgium, 6-4, 6-4.

Francisco Cerundolo, Argentina, and Alex Michelsen, United States, def. Rafael Matos and Orlando Luz (2), Brazil, 6-3, 7-5.