In the second round of the tie-breaker, Gerbe came straight up the middle and fired a wrist shot past the glove side of Devils goalie Martin Brodeur.
Steve Sullivan and Mark Fayne tallied for the Devils, who gained one standings point as they scrambled for an Eastern Conference playoff spot.
New Jersey finished the night three points out of the East's eighth and final playoff spot.
Brodeur ended with 24 saves.
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