SALT LAKE CITY (AP) — JJ Peterka and Barrett Hayton scored second-period goals, Karel Vejmelka made 19 saves, and the Utah Mammoth beat the Calgary Flames 3-1 on Wednesday night.

Utah became the sixth NHL franchise to win each of its first two home openers. The Mammoth also earned their fourth straight win over Calgary after going 3-0 against the Flames last season.

Kevin Stenlund added an unassisted empty-net goal with 22.2 seconds remaining to complete the scoring for Utah.

Calgary has surrendered 19 goals through its first five games and has a minus-9 goal differential — second-worst in the NHL. Devin Cooley made his season debut for the Flames and finished with 29 saves.

Rasmus Andersson opened the scoring for Calgary on a power-play goal at 8:37 of the first.

Hayton got Utah on t

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