Guido Andreozzi and Guillermo Durán were the defending champions but only Andreozzi chose to defend his title, partnering Andrés Molteni. Andreozzi successfully defended his title.
Hugo Dellien and Guillermo Durán were the defending champions but only Dellien chose to defend his title, partnering Federico Zeballos. Dellien and Zeballos withdrew before their quarterfinal match.
Guido Andreozzi and Guillermo Durán were the defending champions but chose not to defend their title.
Guido Andreozzi and Andrés Molteni were the defending champions but only Andreozzi chose to defend his title, partnering Thiago Seyboth Wild. Andreozzi withdrew from the tournament before his quarterfinal match.
Sadio Doumbia and Fabien Reboul were the defending champions but chose not to defend their title.
Luciano Darderi and Juan Bautista Torres were the defending champions but only Torres chose to defend his title, partnering Thiago Agustín Tirante. Torres lost in the semifinals to Román Andrés Burruchaga and Facundo Díaz Acosta.
Ignacio Carou and Facundo Mena were the defending champions but chose not to defend their title.
Jesper de Jong and Bart Stevens were the defending champions but only de Jong chose to defend his title, partnering Max Houkes. De Jong and Houkes retired from their first round match against Boris Arias and Federico Zeballos.
Rafael Matos and Felipe Meligeni Alves were the defending champions but only Meligeni Alves chose to defend his title, partnering Matheus Pucinelli de Almeida. They withdrew before their first round match.
This was the third edition of the tournament as an ATP Challenger Tour event and the first edition since 2012.
Guillermo Durán and Felipe Meligeni Alves were the defending champions but chose not to defend their title.
Nicolás Jarry and Matheus Pucinelli de Almeida were the defending champions but chose not to defend their title.
Guido Andreozzi and Guillermo Durán were the defending champions but chose not to defend their title.
Boris Arias and Federico Zeballos were the defending champions but lost in the semifinals to Diego Hidalgo and Cristian Rodríguez.
Guido Andreozzi and Guillermo Durán were the defending champions but lost in the semifinals to Fernando Romboli and Marcelo Zormann.
Gonzalo Bueno and Daniel Vallejo were the defending champions but only Vallejo chose to defend his title, partnering Ignacio Buse. Vallejo lost in the first round to Renzo Olivo and Elias Ymer.
Karol Drzewiecki and Piotr Matuszewski were the defending champions but chose not to defend their title.
Mateus Alves and Gustavo Heide were the defending champions but chose to defend their title with different partners. Alves partnered Gabriel Décamps but lost in the semifinals to Marcelo Demoliner and Rafael Matos. Heide partnered Gilbert Klier Júnior but retired from his first round match against Demoliner and Matos.
Guido Andreozzi and Guillermo Durán were the defending champions but only Andreozzi chose to defend his title, partnering Ignacio Carou. Andreozzi withdrew before the start of the tournament due to a foot injury.
Orlando Luz and Rafael Matos were the defending champions but only Luz chose to defend his title, partnering Marcelo Zormann. Luz lost in the first round to Radu Albot and Alexandr Cozbinov.
Boris Arias 
Guido Andreozzi 
