"We have been offensively challenged for quite some time," Krug said. "We've had to win a lot of tight, low-scoring games, so it was nice to win one like this."
Even in a high-scoring game, Boston needed a few key stops on Gaudreau. The former Boston College standout scored from a tight angle with 9:27 left to cut Boston's lead to 4-3 and also had an assist, but he failed to convert on two breakaways. The diminutive All-Star was coming off consecutive four-point games.
"Gaudreau is a special player with his height and how he came into the league," DeBrusk said. "He's so nifty."
"It was a special day," Krejci said. "They (Calgary) are really good and to get the two points was a cherry on top."
After Gaudreau's goal, DeBrusk quickly stretched the lead off a pass from Krejci with 6:14 to play. Backlund scored less than three minutes later to make it 5-4, but Marchand iced it with an empty-netter with 1:50 left.
"Caught him (Smith) off guard," DeBrusk said. "It was lucky, but I'll take it."
Frolik got Calgary going with a short-handed goal 7:46 into the game. He charged out of the box after he and Lindholm were called for penalties five seconds apart and beat Halak.
NOTES: Boston F David Backes served the final game of his three-game suspension for an illegal hit to the head. ... Joakim Nordstrom sustained a non-displaced fibula fracture in the Winter Classic and will be re-evaluated in three weeks for the Bruins. ... The Flames split the season series but have dropped seven of nine in Boston. ... Boston has scored nine power-play goals in the last six games and has only allowed two in in the last ten.
Flames: Visit Philadelphia on Saturday
Bruins: Host Buffalo on Saturday