Once the rain had subsided at the National Tennis Centre in St Michael, Barbados sealed their place in the second round on what proved to be a good day for Haydn Lewis.
The home team's No. 2 player was leading Paraguay's Daniel-Alejandro Lopez Cassaccia 64 75 1-1 on Friday before the match had to be postponed due to wet weather on the Caribbean island.
But, returning to play on Saturday morning, Lewis prevailed in straight sets before teaming up with Darian King, himself a winner on Friday's opening singles rubber, to defeat Juan-Enrique Crosa and Gustavo Ramirez 63 64 64 to clinch the tie.
Barbados will now play Mexico in Mexico, after Mexico completed a 3-0 win over El Salvador. Mexico's Santiago Gonzalez and Cesar Ramirez won the doubles rubber over Marcelo and Rafael Arevalo 64 62 75.
In the other half of Americas Zone Group II, Domincan Republic stole the advantage going into the final day of play against Bolivia thanks to a win in the doubles for Victor Estrella and Jose Hernandez over Hugo Dellien and Mauricio Doria-Medina 36 62 75 63 in Santo Domingo.
The winner of that tie will go on to face Venezuela in the second round in April after the doubles pairing of Luis David Martinez and Roberto Maytin proved too good for Puerto Rico's Gilberto Alvarez and Ricardo Gonzalez-Diaz, winning 63 76(8) 76(4).
Venezuela, who are playing at the National Tennis Centre in Caracas, will look to complete the whitewash when the team's play Sunday's dead singles rubbers.