DENVER (AP) -- Paul Stastny scored twice and added two assists and the Colorado Avalanche beat the Dallas Stars 6-2 on Monday night.
Erik Johnson and Andre Benoit also scored in a four-goal second period, and Nathan MacKinnon and Tyson Barrie scored for Colorado.
Tyler Seguin had a goal and an assist and Kevin Connauton scored his first NHL goal for the Stars, who have dropped three of the past four.
Goalie Kari Lehtonen stopped 42 shots for Dallas in a rare poor start against Colorado. Lehtonen was 8-3-2 with a 2.52 goals-against average against the Avalanche before Monday.
The Avalanche outshot Dallas 21-10 in the first period, but managed just one goal against Lehtonen. It was a different story in the second.
Stastny broke a 1-all tie when he knocked in Jamie McGinn's tip pass 8:29 into the period for his ninth goal of the season. Benoit made it 3-1 when he pinched in from the blue line and blasted a shot through traffic past Lehtonen.
Stastny scored again when he tipped a shot by Gabriel Landeskog in front of the net, and Johnson finished the run with a shot from the top of the right circle with 3 seconds left in the period to make it 5-1.
Seguin scored early in the third, but Barrie's first goal of the season on Stastny's second assist made it 6-2.
It was more than enough for the Avalanche, who improved to 3-0 against the Stars this season.
The teams will play again in Dallas on Tuesday night.
Colorado took a 1-0 lead midway through the first period when MacKinnon beat Lehtonen with a shot from the left circle. It was his seventh goal of the season.
The Avalanche continued to get shots on Lehtonen, and had a chance to add to their lead when they had 1:26 of a two-man advantage. They couldn't convert, and moments after the Stars killed off Sergei Gonchar's penalty, Matt Duchene was sent off for hooking.
Connauton tied it on the ensuing 4-on-4 with 33 seconds left in the first.
Dallas nearly scored again with 12 seconds left, but Seguin's shot from a sharp angle never crossed the goal line before resting on goalie Semyon Varlamov's back.
Varlamov had 31 saves for Colorado.
NOTES: Colorado D Ryan Wilson (back) was activated from the injured list, but did not return to the lineup. Wilson has missed 18 games after being injured Nov. 6 against Nashville. ... MacKinnon extended his points streak to four games. ... The Stars came into the game ranked 23rd on the penalty kill, but didn't allow a power-play goal in five chances. ... Colorado's six goals tied a season high.