Backlund, Gaudreau score 2 goals each as Flames top Avs, 6-3

Calgary Flames center Sam Bennett, right, takes a shot as Colorado Avalanche left wing Andreas Martinsen, of Norway, defends in the second period of an NHL hockey game, Tuesday, Dec. 27, 2016, in Denver. (AP Photo/David Zalubowski) (The Associated Press)

Calgary Flames right wing Michael Frolik, right, of the Czech Republic, has his shot stopped by Colorado Avalanche goalie Calvin Pickard in the second period of an NHL hockey game, Tuesday, Dec. 27, 2016, in Denver. (AP Photo/David Zalubowski) (The Associated Press)

Calgary Flames goalie Brian Elliott, front, makes a kick save of a shot as Colorado Avalanche center Nathan MacKinnon looks on in the first period of an NHL hockey game, Tuesday, Dec. 27, 2016, in Denver. (AP Photo/David Zalubowski) (The Associated Press)

Mikael Backlund scored two of Calgary's four goals in the second period and also had an assist, and the Flames beat the Colorado Avalanche 6-3 on Tuesday night.

Johnny Gaudreau also had two goals and an assist for the Flames. All of Calgary's second-period goals deflected off Colorado players.

Brian Elliott had 25 saves for the Flames, who have won nine of 12.

Gabriel Landeskog had two goals and Jarome Iginla scored for Colorado, which has now lost nine straight at home for the first time since moving to Denver. The Avalanche are 0-8-1 at Pepsi Center since beating the Los Angeles Kings 4-1 on Nov. 15.