Nick Schmaltz and John Marino also scored, and Karel Vejmelka made 31 saves for the Mammoth (14-12-3), who have won two in a row after losing the previous four.
“They had a lot of shots, ‘Veggie’ was on top of his game. We had some big blocks and when we had our chances we scored,” Sergachev said. “So that's what you want to see from your team. You defend well and when you have a chance to score, you score.”
Arshdeep Bains scored and Kevin Lankinen made 14 saves for the Canucks (10-15-3), who are winless in four games (0-3-1) and have one win in their past eight (1-6-1).
“We believe we can win every game,” Canucks forward Elias Pettersson said. “Obviously, it hasn't been looking good, the record, but we're giving effort every game and it's not bouncing our way.”
Vejmelka made a few pad saves early, going left to right to deny Elias Pettersson in tight at 4:52, then the other way to rob Linus Karlsson on a backdoor chance at 5:08.
Sergachev put the Mammoth ahead 1-0 on the game’s first power play at 16:00 of the first period when his point shot deflected twice -- first off Elias Pettersson, then defenseman Marcus Pettersson -- and caught Lankinen sliding the other way.
Utah was 1-for-2 on the power play for the second straight game after going 1-for-19 the previous nine games.
“They were both broken plays and lucky goals,” Sergachev said. “So, I don't want to say anything. That's thanks to hockey God, I guess.”