On the winning play, Boston won the faceoff and got the puck to Chara at the right point. The big defenseman launched a wrister that Satan deflected into the net with the shaft of his stick, sending the Bruins into sole possession of the seventh seed in the Western Conference.
Tuukka Rask made 27 saves for the Bruins, winners of three of their last five games. Boston remained two points behind sixth-place Montreal in the West.
Colton Orr got the only score for the Maple Leafs while Jonas Gustavsson made 28 saves in the defeat.