It was the Islanders' second shootout victory in as many games.
Michael Grabner also scored for the Islanders. Evgeni Nabokov made 19 saves in 26 minutes of ice time after starter Al Montoya was injured on a collision with Winnipeg's Evander Kane and left the game.
All of the scoring in regulation came in the first two periods, with Ladd's goal a 9:46 of the second period knotting the score 2-2.
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