Marcel Hirscher won the opening men's World Cup giant slalom race of the season at Beaver Creek and Tina Weirather claimed a super-G victory at Lake Louise as Lindsey Vonn suffered another crash.
Hirscher finished 17th in the Levi slalom last month on his return from a broken ankle, but the Austrian great was back on the top step of the podium on Sunday.
The 28-year-old won a record sixth consecutive overall title last season and claimed his first victory of the 2017/18 campaign courtesy of an improved second run on the Birds of Prey course.
Hirscher, eyeing a fifth giant slalom globe and a fourth in a row, was only third fastest in his opening run behind Stefan Luitz and Ted Ligety.
After going down in one minute, 18.09 seconds first time around, Hirscher crossed the line in 1:19.21 to go joint-third on the all-time list of World Cup wins in the discipline with 23.
Henrik Kristoffersen was runner-up, a combined 0.88 seconds slower than Hirscher, and Luitz took third.
Weirather started the defence of her super-G title with a win, hurtling down an icy course in one minute, 18.52 seconds.
It was a sixth World Cup success in the discipline for the 28-year-old from Liechtenstein, who won the final race of last season in Aspen.
Lara Gut was second in a time of 1:18.63 at a resort where she won last year, with Nicole Schmidhofer filling the podium.
Vonn crashed into the barriers in the downhill on Friday and failed to finish again after taking another tumble.