But last year's Vezina Trophy winner and playoff MVP was in fine form for a Super Bowl Sunday matinee, the first time all season he's played on back-to-back days. Among his 35 saves was a quick reflex stop against Alex Ovechkin when the Capitals forward had an open look after a rebound.
"Tim's capable of doing that for us, and he's done that a lot in the past," Boston coach Claude Julien said. "And I thought he was on top of his game today."
Thomas was booed pregame.
"I think I'm pretty much booed at every arena, wouldn't you say?" Thomas said. "Even before anything happened?"
Still, he acknowledged it was good to have a trip back to Washington that was all about hockey.
"Yeah, yeah, it was. This is more normal," he said. "This is what I'm used to, that's for sure."
Milan Lucic and Brad Marchand scored first-period goals, and Tyler Seguin and Rich Peverley tallied in the third for the Bruins, who built a 3-0 lead.
Marcus Johansson scored the lone goal for the Capitals.
The Capitals also lost center Brooks Laich, who left the game after being hit into the boards by Dennis Seidenberg with 8 minutes remaining in the second period. Laich was walking on crutches and wearing a left knee brace after the game. Coach Dale Hunter said Laich was day-to-day.
Also, Caps defenseman Dmitry Orlov, whose nose was broken when he was struck in the face by a puck on Saturday, took another puck to the face, this time with 11:54 to go in the third on a deflected shot from Shawn Thornton. Hunter said Orlov wouldn't miss any games.
In other games *
At Newark, N.J., Ilya Kovalchuk had a goal and two assists, and the New Jersey Devils extended their winning streak to four with a 5-2 victory over the Pittsburgh Penguins.