The Utah Mammoth are only in their third year as a franchise, so the roster of grudges is still being built. But if the fan reaction in one new video is any indication, the early leader for Utah’s biggest headache is already clear: the Vegas Golden Knights.
A clip shared by Cole Bagley on October 12, 2026 showed a heavy majority of Mammoth fans siding against Vegas, a reaction that hardly came as a shock given how the two teams have already crossed paths in memorable ways.
Before the Arizona Coyotes relocated to Utah, the state’s hockey leanings seemed to tilt toward either the Golden Knights or the Colorado Avalanche, with Vegas drawing the bigger share. Now that Utah has its own team, that old connection to the Golden Knights has started to crack, and the move may have cost Vegas a big chunk of support.
There’s also the matter of the old Arizona fanbase. Arizona, the source material notes, is a state that doesn’t seem to really like hockey, but if those fans latch onto anyone, it could still be their former club, now the Mammoth. That only adds another layer to why these teams may not be fond of each other.
The on-ice history doesn’t help either. Last season, Utah had a series that felt there for the taking after going up 2-1 on Vegas, only to watch the Golden Knights erase two late third-period leads and steal the matchup.
For Mammoth fans, that kind of ending sticks. It left a hollow feeling in Utah, and things got worse when Vegas moved through the Western Conference without much trouble, getting past the Avalanche and Anaheim Ducks en route to the Stanley Cup Finals.
The Carolina Hurricanes eventually beat Vegas in the Final, but that didn’t ease the sting for Utah supporters.
With plenty of teams in the Central Division to choose from, Utah fans have options when it comes to rivals. Right now, though, the Golden Knights appear to be the one drawing the most heat.
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