With the Bruins coming off a 3-2 loss at the Washington Capitals on Wednesday, the Lightning said they wanted to play physical early, and they had 19 hits in the first period.
"We knew if we could get on them early, they're a great team and they played a big, physical, heavy game in Washington last night," Stamkos said. "If anything, we had the fresh legs and we took advantage. It doesn't always work out that way, but tonight we were able to play our game, and it worked."
The plan started to work in the second period, when Stamkos tied it 1-1 with a power-play goal at 12:35.
Point put the Lightning ahead 2-1 with a power-play goal at 4:07 of the third. He scored with a shot from the slot off a backhand pass from below the goal line by Kucherov, whose one-timer from the right face-off circle was swatted by Rask at 3:52.
"Can't put it on the forwards or on the [defensemen], [the Lightning] just started making plays," Bruins coach Bruce Cassidy said. "Penalty kill just didn't have an answer tonight, all night. They scored twice and probably should've scored another."
Stamkos made it 3-1 at 15:13 with his sixth goal in four games.