"That is my fault on pulling the goalie," Tortorella said. "I need to wait until we get control."
Rantanen gave the Avalanche a 1-0 lead at 12:48 when his shot from the right circle nicked Blue Jackets defenseman Scott Harrington and beat Bobrovsky to the stick side. It was Rantanen's 14th goal.
"He's a great goalie," Rantanen said. "We got the first goal, a lucky bounce, it was good for us. We should have had more traffic in front of him, but the win is the biggest thing.
"It wasn't the best game from us, but we managed to stay with it. We didn't give them too many Grade-A chances and Bernier played great in the net. It was tight until the empty-netter."
Bobrovsky credited his teammates for playing solid defense, especially in the third period when they spent significant time in the Avalanche end.
"It is what it was," he said. "Our guys played hard, they played strong defense. Sometimes you have to give the other side credit and deal with the result. The game was played in our zone the first two periods. We got things going in the third period. The guys tried and worked hard. They tried to score."