Vigneault said, "I liked the way we started the game, and then they had that 10-minute unbelievable push in that first period. It's as quick as I've seen a team come at us. They got a quite a few looks, but after that I really liked our game."
Rantanen made it 2-0 at 16:05 of the second period when he skated to the net and redirected Nathan MacKinnon's pass from the left circle.
"Nate made a good play on the rush," Rantanen said. "He made a great pass to me driving to the net, and I tapped it in."
The Flyers spent most of the second in the Avalanche zone, outshooting them 17-5.
"We couldn't finish today," Philadelphia center Sean Couturier said. "The goalie was hot, and we maybe didn't have our best finish as we usually do. They were that much better in the execution part, but I thought we battled hard and created a lot of chances."
Francouz said, "It's a fun part of the game. I think a huge part of this game is that we stayed patient. We didn't panic in that time. We stayed structured in our zone trying to seal them out of the danger zones and we blocked a lot of shots. We scored the second goal, and that was huge for us."
Rantanen increased the lead to 3-0 at 2:31 of the third period. He shot short side from near the right post after receiving Nazem Kadri's pass from behind the net.
"We cycled behind the net, [Kadri] was there, and he made a quick play behind the net," Rantanen said. "I got two good passes for those goals."