Brett Howden extended his goal streak to three games, and Carter Hart made 22 saves for the Golden Knights, who are the No. 1 seed from the Pacific Division.
“We simplified things. We just tried to go north, tried to play behind the net,” Vegas coach John Tortorella said. “The second goal was a really important part of the game for us, just to shift itself, and then we scored the second one before they got one. I thought that was a really big part of the game.”
Kailer Yamamoto scored, and Karel Vejmelka made 21 saves for the Mammoth, who were the first wild card from the Western Conference.
“I was really confident we would go to Vegas tomorrow,” Utah coach Andre Tourigny said. “I’m disappointed. I’m not mad at the players, I’m mad at the fact we lost. ... I hate excuses. I hate taking the easy way out. I think I told you all year, your failure makes you stronger. You learn from it and it makes you better, but in order to make sure that happens, it has to hurt. I don't even want to feel good about it. I want it to hurt and learn from it.”
Howden opened the scoring at 15:02 of the first period. Marner's shot from the high slot went wide of the net, but the rebound caromed off the end boards right to Howden, who put it past Vejmelka at the left post to give the Golden Knights a 1-0 lead.