18 Feb 19 Feb 20 Feb 21 Feb 22 Feb 23 Feb 24 Feb 25 Feb 26 Feb
| Starting at 16:30 | ||
| Alex Molcan SVK | vs | Joao Fonseca BRA |
| Not before 19:00 | ||
| Dominic Thiem AUT | vs | Thiago Monteiro BRA |
| Followed by | ||
| Lorenzo Musetti ITA | vs | Nicolas Jarry CHI |
| Starting at 16:30 | ||
| Pedro Martinez ESP | vs | Cristian Garin CHI |
| Followed by | ||
| Laslo Djere SRB | vs | Facundo Bagnis ARG |
| Starting at 16:30 | ||
| Joao Sousa POR | vs | Hugo Dellien BOL |
| Followed by | ||
| Pedro Cachin ARG Francisco Cerundolo ARG |
vs | Tomas Martin Etcheverry ARG Diego Schwartzman ARG |
| Not before 19:30 | ||
| Sebastian Baez ARG Albert Ramos-Vinolas ESP |
vs | Nathaniel Lammons USA Jackson Withrow USA |