In an all-French affair, Martinique started in its familiar attacking style, making every attempt to strike for an early goal against Haiti goalkeeper Frandy Motrevil. Kevin Parsemain was his usual dangerous self, menacing the Haitian defense in combination with Fabrice Reuperne and Steeve Gustan.
Haiti, though, had the best chance in the first half, when Olrish Saurel's free kick was pushed over the crossbar by Loic Chauvet.
Following the break, Haiti immediately went on the offensive and could have taken a 50th minute advantage, but an unmarked Fritznel Lois shot wide from inside the 18-yard box with only Chauvet to beat.
Afterwards, Jean-Philippe Peguero had two opportunities - just minutes apart -- to give the 2007 Caribbean champion a lead. He saw Chauvet save an attempt from close range and then had another effort rattle the Martinique crossbar.
A Daniel Herelle free kick just before the end of regulation almost gave Martinique the win, however, a diving Motrevil did well to keep the ball out of his net.
Haiti finally cracked Martinique's armor in extra time with St. Preux flicking home an exquisitely delivered 40-yard pass from Wiselet Saint Lois.
Trinidad & Tobago will meet Cuba in the championship later in the day.