BOSTON - Matt Duchene broke a tie in the third period with his sixth goal in five games and the Colorado Avalanche beat the Boston Bruins 3-2 on Thursday night.
Reto Berra made 25 saves, and Colorado won back-to-back road games for the first time this season after beating Philadelphia on Tuesday night.
Zdeno Chara and Ryan Spooner scored in the first to give Boston a 2-0 lead, but Carl Soderberg and Francois Beauchemin scored to tie it 2-2 later in the period.
Duchene had just one goal in his first 11 games this season. He also assisted on Beauchemin's goal.
The Bruins broke a club record by losing to Colorado at home for the eighth straight time. Boston had previously gone winless at home seven times against both Montreal and Detroit.
Soderberg, a former Bruin, scored when he converted a feed from Blake Comeau to beat Tuukka Rask with 7:52 left in the first.
Beauchemin tied it with 29 seconds remaining.
Avalanche captain Gabriel Landeskog received a match penalty at 5:46 of the second period for an illegal hit to the head of Bruins forward Brad Marchand. After slumping over on the ice for a few seconds, Marchand calmly stood, skated over to Landeskog and sucker punched him in the face. Marchand received a minor penalty and Landeskog is automatically suspended the next game pending an NHL review.
Chara scored his first career goal against Colorado 72 seconds into the game after keeping in a clearing attempt by Tyson Barrie.
Spooner gave the Bruins a power-play goal for the eighth straight game.
Rask made 27 saves and is now winless in five starts against the Avalanche.
Boston fell to 1-5-1 at home this season and lost for the fourth time in five games.
NOTES: Bruins defenceman Dennis Seidenberg made his season debut and returned after missing seven weeks. ... Berra has allowed four goals in his three starts in place of Semyon Varlamov, who is recovering from a groin injury. ... Boston signed 2015 first-round picks Jake DeBrusk and Zach Senyshyn to entry-level contracts. Boston has now signed all three of its first-round picks from this year, including Jakub Zboril. ... Iginla tied Peter Stastny for 37th on the all-time scoring list with an assist. ... Avalanche defenceman Erik Johnson recorded an assist for his 200th career point.