Emery Welshman carried the attack for the Golden Jaguars
Carnejy Antoine, who had what looked a certainty of a goal saved by Quillian Roberts got his mark on the scoresheet in the 38th minute, and the norm of Haiti scoring in a procession continued as Derrick Eitienne Jr hit the back of the net in the 41st and 43rd.
Nathan Moriah-Welsh made the most of his chance in the 45th to add a consolation, if any, for the Guyanese at the half.
Shabazz rang the changes in the second half, bringing on Jeremy Garrett, Tre Mitford, and Adams, and though it brought more stability to the backline, and more zest in attacking, Haiti still held the clear advantage.
Mitford used his height and aggression to run at goal, and with wonder kid, Omari Glasgow being shut down by the Haitian defenders, there were few options going forward, and often too few bodies in the box.
Ten minutes before the end of regulation time, Fredler Christophe added a sixth goal for the Haitians, who are yet to endure defeat against the Guyanese.
Guyana, who entered the contest on the back of two wins, would ideally need a draw in the Dominican Republic to hold on to second place, which would give them a chance at contesting the Gold Cup prelims.
