In the 2010 playoffs, Boucher defeated Martin Brodeur and the New Jersey Devils in the first round four games to one. The national media remarked he was the surprise of the playoffs after the first round with his outstanding play in net. The Flyers defeated the Boston Bruins in the second round by overcoming a three-game deficit, but Boucher was injured in Game 5 of that series with knee injuries. Boucher returned from his injuries to serve as a backup to Leighton in Game 1 of the Stanley Cup Finals against the Chicago Blackhawks. He saw game action in Game 1 and Game 5 in relief of Leighton, but the Flyers lost in six games to the Blackhawks.