BOSTON -- Tuukka Rask extended his point streak to 20 games, and the Boston Bruins ended the Toronto Maple Leafs four-game winning streak with a 4-1 win at TD Garden on Saturday.
Rask is 18-0-2 in his past 21 games (20 starts) and hasn't lost in regulation since Nov. 26.
Torey Krug had a goal and an assist, and Patrice Bergeron, David Pastrnak and Tim Schaller scored for the Bruins (31-11-8), who are 16-1-4 in their past 21 games. Rask made 23 saves.
[WATCH: All Maple Leafs vs. Bruins highlights]
"Toronto, when we played them last year, earlier this year, they were really skating. I thought we outskated them tonight," Bruins coach Bruce Cassidy said. "At least that's how I saw it. ... I liked the way we skated. We were winning pucks and we're killing plays in the neutral zone, getting back and re-attacking them. I thought that was the difference in the game, us being able to sustain that transition game where we were back in their end and eventually wear them down."
Mitchell Marner scored, and Frederik Andersen made 26 saves for the Maple Leafs (30-19-5), who had won their past six games against Boston, two this season.
"If you don't have everyone on deck and you're not ready to go, you're not going to win very often," Toronto coach Mike Babcock said. "So I thought we've done a good job of that of late, and I didn't think we got that tonight. Just didn't have enough players in there, and when the game was there after one [period] and you hadn't been great, it's time for pushback. We didn't have a pushback."
Bergeron scored from the slot at 4:29 of the first period for a 1-0 lead after a back pass from Danton Heinen.
Video: TOR@BOS: Bergeron goes top shelf for opening tally
Marner scored a power-play goal to tie the score 1-1 at 8:03. His slap shot from the right face-off dot went off Bruins forward Sean Kuraly's stick out high and then off defenseman Charlie McAvoy's stick at the top of the crease before entering the net.
Rask was at his best in the second period, making seven saves, including a spectacular stop on Tyler Bozak during an early Toronto power play. After Rask made the initial save on Marner's shot from the top of the right circle, he dove across the crease and batted Bozak's shot off the rebound out of the air to keep the score 1-1.
"Unreal in the second period. That's one that could be a swing in the game right there, could give them a lot of life," Cassidy said. "Gives us some juice, big save like that we want to go get him a goal right after that. I didn't think he was too busy to the point where he had to stand on his head, but that was a stand-on-your-head type save and was very, very timely."
Pastrnak scored a power-play goal at 9:22 of the second period for a 2-1 Boston lead. He drove to the net and beat Andersen to the short side with a wrist shot.
Krug made it 3-1 with a power-play goal at 16:47 before Schaller scored into an empty net with 1:39 remaining in the third period for a 4-1 lead.
Video: TOR@BOS: Krug rips one-timer past Andersen for PPG
Goal of the game
Pastrnak's goal at 9:22 of the second period.
Video: TOR@BOS: Pastrnak slips tough shot through for PPG
Save of the game
Rask's save on William Nylander at 13:58 of the third period.
Video: TOR@BOS: Rask bottles up Nylander's one-timer
Highlight of the game
Rask's save on Bozak at 3:45 of the second period.
Video: TOR@BOS: Rask makes fantastic save on Bozak
They said it
"We didn't help the 'D' enough. We didn't track back and get open for our D-men. We need to work to be successful and tonight I don't think we were helping out our D-men too much." -- Maple Leafs forward Mitchell Marner
"It's one of those I actually had pretty good patience on that. I waited for the puck to get there and then dove. Good timing, right play. Skill and luck, I guess, combined." -- Bruins goaltender Tuukka Rask on his save on Tyler Bozak
Need to know
Bergeron's goal ended Toronto's shutout streak at 146:46. The previous goal was by Dallas Stars forward Tyler Seguin at 17:43 of the second period Jan. 25. The Maple Leafs then had two straight shutouts. ... McAvoy returned after missing four games because he had an ablation to correct an irregular heart rhythm. He was plus-1 in 18:51. ... Bruins defenseman Zdeno Chara became the 39th player to play 1,400 NHL games. ... Rask is the 13th goaltender in NHL history to have a point streak of 20 games or more.
Maple Leafs: Host the Anaheim Ducks on Monday (7 p.m. ET; TSN4, PRIME, NHL.TV)
Bruins: At the Detroit Red Wings on Tuesday (7:30 p.m. ET; FS-D, NESN, NHL.TV)
Video: Krug, Rask lead Bruins to 4-1 win against Maple Leafs