CAPITALS 4, BRUINS 3: Jay Beagle scored a rare goal to snap a tie midway through the second period and Tomas Vokoun turned aside 30 shots as visiting Washington topped Boston to move to within one point of Southeast Division-leading Florida.
Brooks Laich netted a power-play tally and Alexander Semin and Matt Hendricks scored 25 seconds apart in the first period for the Capitals, who advanced past idle Winnipeg to gain sole possession of eighth place in the Eastern Conference.
Milan Lucic and Brad Marchand scored and defenseman Johnny Boychuk tallied for the second straight contest after going goalless in his previous 39. Boychuk tapped in a rebound to trim the deficit to one at 4-3 with 3:13 remaining in the third, but Boston couldn't net the equalizer and fell for the sixth time in nine games at TD Garden.
After Marchand leveled the contest at 2-2 at 4:58 of the second period, Beagle regained the advantage nearly 6 1/2 minutes later.
Semin gained control of a loose puck in the corner and alertly wired a centering feed to Beagle, who beat Vezina Trophy winner Tim Thomas for his second goal of the season and fifth career.
Laich doubled the advantage after taking a feed at the top of the crease from former Bruins defenseman Dennis Wideman before chipping the puck past Thomas.
GAME NOTEBOOK: Washington veteran defenseman Roman Hamrlik returned to the lineup after serving as a healthy scratch for the last eight contests. Coach Dale Hunter told the Washington Post that Hamrlik was punished after being on the ice for too many scoring chances. ... Lucic extended his point streak to six games by scoring with six seconds left in the first period. ... Boston will return to action Sunday afternoon versus Pittsburgh, which ruled out captain Sidney Crosby for the contest.