Adam Hall and Sean Couturier also scored for the Flyers, who snapped a four-game losing streak. The Flyers (26-22-6) won an eighth straight game at home against the Red Wings (23-19-11), a franchise best against Detroit, which has not won in Philadelphia since the 1997 Stanley Cup final.
Mason recorded his second shutout of the season and the 21st of his career.
Starting in place of Jimmy Howard, who was back on the Detroit bench after missing three games with a knee injury, Jonas Gustavsson stopped 23 of 28 shots
I downplayed the first one because I thought it's just a hockey game. We just want to win the game; it's against our rival and we want the two points. I downplayed it, but now having gone through the first one I look back and say, 'Geez, that was really cool.' I think as I've grown a bit older I've got a lot more appreciation for what we're allowed to do every day.
— Capitals forward Brooks Laich on the 2015 NHL Bridgestone Winter Classic, the second one of his career after 2011 in Pittsburgh