French Guyana defeated Anguilla 4-1 in the first game of the doubleheader, leaving Trinidad atop the group with six points, three ahead of both French Guyana and St. Kitts.
With Trinidad having already beaten both second-place teams, it is assured of advancing based on the head-to-head tiebreaker regardless of the results of Sunday's games, which will see Trinidad play winless Anguilla, and French Guyana and St. Kitts facing off.
Kevon Carter, who entered the game in the 43rd minute for Densill Theobald, scored six minutes into the second half to give Trinidad the victory.
In the earlier game, Gary Pigree scored the first of three goals in the third minute and paced French Guyana to an easy victory. Additional goals in first-half injury time and in the 50th put the Guyanese ahed 3-0 before Terrence Rodgers responded for Anguilla.
Ludovic Baal restored the three-goal advantage in the 74th and put French Guyana in position to also advance.
The best second-place team from either Group 4 or Group 5 will join Trinidad in the second round. Barbados already has finished second in Group 4 with six points and plus-one goal difference.
St. Kitts enters Sunday's game with a plus-one goal difference while French Guyana has a zero goal difference.
Trinidad will host second-round Group 8 and face Cuba, Suriname and the Group 2 runner-up November 14-18, while St. Kitts or French Guyana could possibly face Grenada, Haiti and the Group 2 winner in the next round.