Gavin Brindley scored twice in a 2:33 span of the second period as the United States opened its world junior championship with a 4-1 win over Norway on Tuesday.
Jimmy Snuggerud and Isaac Howard also scored for the United States (1-0-0-0). Trey Augustine made 22 saves.
Petter Vesterheim scored the lone goal for Norway (0-0-0-1) while Markus Stensrud turned away 40 shots.
Norway held the U.S. scoreless in the first period before Snuggerud sparked a three-goal American onslaught in the second.
Vesterheim cut into the lead at 4:18 of the third but Howard restored the three-goal margin just 25 seconds later.