The Golden Knights and Avalanche combined for 16 penalties, six for slashing and two for faceoff infractions.
"We are all getting used to each other and there's a lot of adaptation process for us with the new rules and everything," said Vegas left wing Jonathan Marchessault, who scored a first-period power-play goal on a two-man advantage. "The faceoffs, the penalties, I like what they're doing. It's a big change, but it's good. It's going to open up the play and make more room to stay with the puck. I think it's a good thing."
It should help a skilled forward like Marchessault, who scored 30 goals for the Florida Panthers last season. He played on a line with Reilly Smith and Russian center Vadim Shipachyov, who made his NHL debut after spending the previous nine seasons in the Kontinental Hockey League.
"It was the first game, so we need a lot of adaptation," Marchessault said. "Me and Reilly, we know each other. We played together a little bit last year (for Florida). I know what kind of player he is, he knows what kind I am. It wasn't perfect, but as we go on we'll be better."
Shipachyov, 30, had 76 points (26 goals, 50 assists) in 50 games last season for SKA St. Petersburg, but it also will take some time for him to adjust to the smaller NHL rinks.