"Cory, he had no chance on the second one, which was an unfortunate bounce," Hynes said. "Second period, we gave up a few odd-man rushes, he came up big, and when we got ourselves in trouble, he held the fort."
MacKinnon scored an empty-net goal with 1:34 left in the third period for the 3-0 final.
Colorado went 0-for-3 on the power play but killed four New Jersey man-advantages.
"Special teams are always important," Avalanche forward Derick Brassard said. "We gave them a chance a few times to get back in the game. Our [penalty kill] was strong, and our goalie was strong as well. It was a complete effort, and that's what we needed to build some confidence."
Bednar said he is confident the Avalanche can get into the playoffs.
"I have faith that we can pull this off, that we can do it," he said. "We're going to fight to the bitter end to try and get it done. You don't know how this is going to play out. We know we're behind right now and we're going to have to win hockey games. We don't know what the number is, you still can't tell. We just know there's some important games coming up."