"I think we created a good amount. A few little exceptions, times we could have made a different play. But that's what happens when you have new linemates."
Matthews, who turned 19 on Saturday, said he wasn't nervous in or before his debut at Air Canada Centre.
"Not too much, to be honest," he said. "I was pretty anxious to get going. I think we all were. It was a pretty special night, first game playing here in Toronto. Definitely an exciting time."
He said he believes he fits on Team North America's top line.
"I think with all of us bringing different things to the table," Matthews said. "Obviously Connor with his speed, and myself and Scheifele are two big guys who can control the puck down low. I thought we created a lot of pretty good opportunities, (including) with Connor's goal getting called back (late in the first period because of goaltender interference). We definitely created some scoring chances.
"It's a pretty good feeling to go out there and contribute. All four lines brought something tonight. Everybody was out there doing their part. We were utilizing our strengths and I think we put them on their heels."
Matthews said it was time for the build up to the tournament to end, that he and his Team North America teammates were eager to get on with the real games.
"A two-week camp, three exhibition games, and I think all of us pretty anxious to get going in the tournament," he said. "I think it showed. We were flying around the ice tonight, using our speed and getting pucks in behind their defense. It definitely worked out in our favor."
Matthews was one of many Team North America players who excelled on Sunday. Team North America dictated the pace for more than two periods, building a 4-0 lead, and allowed Team Finland very little opportunity to rally at any point.
"It was pretty special," Matthews said. "I think we played a solid 60 minutes. Besides that one goal they scored, I think we controlled the pace of the game.
"We utilized our strengths, our speed and we were able to control pucks down low and we were able to kind of take control of it."