The Bajans came into the final leading 2-1 after wins from the doubles team of Darian King and Haydn Lewis while King had won his singles match against Junior French Open Champion Christian Garin.
King continued his winning ways by dispatching Gonzalo Lama in straight sets 6-2, 6-4, 6-3.
The Chilean seemed incensed at being outmatched by a lesser ranked player and was twice warned by the umpire about his behaviour.
“We couldn’t have done this without them,” said king in reference to the spectators who turned out to support.
“This is one of my biggest victories, especially as this is Davis Cup, playing for your country. I rank this at the top of the list, because playing for your country, you are leaving it all on the court, and to come out with a win is fantastic”.
Lama raced to a 0-2 lead in the first set but King bounced back to level at 2-2 by making effective use of the drop shot before going on to win 6-2.
Lama destroyed his racquet by hitting it onto the court, and was cited by the chair umpire for a racquet violation After King won the second set 6-4.
He grew even more frustrated as the game wore on, as he had difficulty dealing with the windy conditions in Wildey.
With King leading 5-3 in the third set, Lama’s temper again got the better of him, and he accidentally hit one of the net umpires on the side of the head.
The Chilean was given a point penalty for unsportsmanlike conduct, and King easily added the final two points needed to win the set 6-3, and the match 6-2, 6-4, 6-3.
Barbados will now face El Salvador in the second round in April this year at the National Tennis Centre, after the latter defeated Paraguay 3-2.
Chile must now play Paraguay to avoid being relegated to Group III.
Barbados is the only Caribbean country to compete in the Group II with the others competing in Group III.