BOSTON — Waiver-wire pickup David Schlemko made a memorable debut for Calgary, scoring the decisive goal in the eighth round of the shootout as the Flames swept the season series with a 4-3 victory over the Boston Bruins Thursday night at the TD Garden.

Jiri Hudler had a goal and an assist and Sean Monahan and rookie Johnny Gaudreau each scored on the power play as Calgary improved to 3-2-0 on its seven-game road trip while ending a four-game skid in Boston. Defensemen Kris Russell and Dennis Wideman collected two assists apiece and Karri Ramo made 34 saves before stopping seven attempts in the shootout.

Brad Marchand, Milan Lucic and Loui Eriksson scored for the Bruins, who entered the night with a two-point lead over Florida for eighth place in the Eastern Conference. Tuukka Rask turned aside 29 shots but was beaten in the final two rounds of the bonus format to fall to 3-0-2 lifetime against the Flames.

Boston scored the opening goal for the sixth straight game as Marchand pounded on a deflected puck to the right of the net before circling and beating Ramo on a wraparound at 7:46 of the first. Monahan answered on the power play just over 11 minutes later, knocking home a rebound for his sixth tally in nine games.

Lucic converted between the right dot and hash mark off Ryan Spooner’s pass from behind the net 2 1/2 minutes into the second, but Hudler buried a long rebound with 5:34 left in the session before Calgary went ahead on Gaudreau’s wrister from the right circle at 4:59 of the third. Eriksson got the equalizer with 8:20 to play, tucking home a rebound from the doorstep.

GAME NOTEBOOK: Gaudreau, who played at Boston College, ended a 15-game goalless drought while Monahan scored his 23rd goal to eclipse his total from last season’s rookie campaign. … Marchand scored for the fourth time in eight games to take over the team lead with 19 goals. … Flames F David Jones (lower body) was injured in the first period while blocking a slap shot by Bruins D Dougie Hamilton and did not return. … F Max Talbot, acquired from Colorado at the trade deadline, had three shots on goal in his Boston debut.

Flyers 3, Blues 1

PHILADELPHIA — Defenseman Michael Del Zotto and right winger Wayne Simmonds scored less than two minutes apart in the third period to lead the Philadelphia Flyers to a 3-1 win over the St. Louis Blues on Thursday.

Flyers goaltender Steve Mason and Blues netminder Brian Elliott went toe-to-toe, with each making 28 saves in the game.

For a while it looked like it just wasn’t going to be Philadelphia’s night, with St. Louis center Jaden Schwartz notched his 21st goal of the season at 12:52 of the first period. The tally was set up by third-year Blues right winger Vladimir Tarasenko, who intercepted a cross-ice pass by Flyers defenseman Mark Streit, intended for Flyers center Claude Giroux. Terasenko fed the puck to Schwartz, who ripped a shot over Mason’s left side to put the Blues ahead 1-0.

That was how the score stayed until midway through the third period, when the Flyers finally broke through on a slap shot by defenseman Michael Del Zotto over Elliott’s right shoulder, knotting the game at 1.

Less than two minutes later, the Flyers used crisp passes and a dose of patience to strike again as Simmonds took a pass from Streit and scored after quickly redirecting the puck past Elliott.

Philadelphia left winger Michael Raffl added an empty-net goal with just over a minute to play to seal the 3-1 win.

Philadelphia, which wrapped up a three-game homestand, heads on the road for a Saturday afternoon game at Boston. St. Louis completes its five-game road trip Saturday evening at Toronto.

Wild 2, Capitals

WASHINGTON — Back in late January, when the NHL took a long weekend to stage its All-Star Game, the Minnesota Wild were mired in mediocrity with a 20-20-5 record.

Since then, they have been the NHL’s hottest team.

Veteran right winger Jason Pominville netted two third-period goals 5:09 apart, leading the Wild to a come-from-behind, 2-1 victory over the Washington Capitals on a snowy Thursday night.

The win was the Wild’s fourth straight and improved their record since the All-Star break to a league-best 15-2-1. Minnesota (35-22-7) moved past the Winnipeg Jets and into the first wild-card spot in the Western Conference, five points ahead of the Los Angeles Kings and San Jose Sharks, who are tied for ninth place.

The Capitals (35-21-10) were playing without NHL leading goal scorer Alex Ovechkin, who was sidelined for the first time this season due to a lower-body injury. Left winger Curtis Glencross scored the lone goal for the Capitals, who were thwarted by Wild goaltender Devan Dubnyk (24 saves).

Washington had its two-game win streak snapped and failed in an attempt to catch the third-place Pittsburgh Penguins in the Metropolitan Division standings.

The Wild entered the final period trailing by a goal, and Pominville had to work hard to tie the score at the 9:19 mark. The 32-year-old veteran was stopped at the side of the net on a brilliant save by Washington goaltender Braden Holtby (28 saves). Pominville lost his stick in Hotby’s pads but yanked it loose just in time to shove the puck between Holtby’s legs for his 14th goal of the season.

Pominville struck again with 5:32 remaining in regulation when left winger Zach Parise picked off a pass by Capitals defenseman Mike Green and fed the puck to Pominville, who blasted a shot over sliding defenseman Tim Gleason and past Holtby’s left shoulder for the game-winning goal.

The Capitals opened the scoring 2:51 into the game when Glencross, acquired from the Calgary Flames on Sunday, scored his first goal as a Capital on his first shot at Verizon Center. Glencross took a lead pass from rookie center Evgeny Kuznetsov and fired a short side shot just under the right corner for his 10th goal of the season and first in a Washington jersey.

The power-play goal came with Wild left winger Thomas Vanek in the box for high sticking Capitals right winger Tom Wilson. It was just the second power-play goal allowed by the Wild in their past 49 penalty kills dating back 17 games.

The Capitals had a chance to make it 2-0 with three minutes remaining in the second period when rookie left winger Andre Burakovsky fed right winger Marcus Johansson inside the left circle, but Johansson’s shot rang off the left post and the teams went into the third period with Washington holding a one-goal lead.