Laviolette said the Rangers did not adjust to MacKinnon's speed.
"That's on me," Laviolette said. "We knew what was coming at us, and sometimes I feel like I can do a better job of explaining things. We were in place, we were in position, but after that happened we made a quick adjustment inside the room and were able to handle that speed a little bit more."
The Avalanche had three power play chances before MacKinnon scored.
"Skating early, drawing penalties, a lot going on for us in the first period," Bednar said. "It would have been nice to capitalize on one of those power play opportunities, but all in all, I think that was our best period."
Panarin tied it 1-1 with 8:43 remaining in the third period. He got the puck behind the net, skated up the left wing, and held off Makar as he cut across the point before scoring with a wrist shot through traffic.
"We had a nice push at the end of the second after they had us hemmed in our zone for a while," Bednar said. "We pushed back, come in with the lead, and in the third they continued to push and it looks like we didn't do enough to secure the win."