Tessa Worley of France secured her ninth career FIS World Cup giant slalom victory - and her first since 2013 - in Killington on Saturday, with home favourite Mikaela Shiffrin forced to settle for fifth in Vermont.
Worley recorded first and second runs of 59.56 and 59.70 seconds respectively for an overall time of one minute 59.26 seconds, winning for the first time since St. Moritz nearly three years ago.
Early pacesetter Nina Loeseth of Norway was 0.80secs back in second, followed by Italian Sofia Goggia (2:00.37).
American supporters had hoped to cheer on Colorado-born Shiffrin to victory, but the 2014 Winter Olympic slalom champion found herself sandwiched between Goggia's compatriot Marta Bassino and Ana Drev of Slovenia.
"I'm pretty disappointed with today but I'm happy with the second run," Shiffrin said.
Reigning overall World Cup holder Lara Gut crashed out in her first run but was impressed by the competition's return to Vermont for the first time since 1978.
"I think they did an amazing job," the Swiss said.
"Usually, when we're in the USA, there's not so many people. Here, there are so many people. I was surprised."
Shiffrin remains top of the overall points tally ahead of the slalom on Sunday and next week's events in Lake Louise.