Norway's Kjetil Jansrud won his second medal of the 2014 Winter Olympics with gold in the super-G in Sochi as Bode Miller added a bronze.
The 28-year-old downhill bronze medallist clocked one minute 18.14 seconds on the sun-dappled course above Rosa Khutor.
Miller took his tally of Olympic medals to six.
Team-mate Andrew Weibrecht, third in 2010, put in a late charge to win silver, 0.30 seconds back.
It was Miller's first medal of the Games as he and Canada's Jan Hudec shared bronze.
Miller, 36, is the oldest alpine skier to win an Olympic medal and became the joint-second most successful US Winter Olympian alongside short-track speed skater Bonnie Blair. Only short track star Apolo Ohno has more with eight medals.
It was the second skiing event of the Games to see shared medals after Slovenia's Tina Maze and Swiss Dominique Gisin won joint golds in the women's downhill.
The last time a men's Olympic skiing medal was shared was when Hans Knauss and Didier Cuche could not be split for silver in the super-G in Nagano in 1998.
Norway's Aksel Lund Svindal, the world champion and World Cup leader, finished 0.6 seconds back in seventh.
Miller, who was second in the super-G behind Svindal in Vancouver 2010, came into the Games as one of the favourites to win multiple medals but could only finish eighth in the downhill and sixth in the super-combined earlier in the programme.
The colourful American, who left the US ski team to race under his own Team America banner for two years in 2007, was in tears when the super-G medals were confirmed.
Miller suffered the shock death of his brother Chelone in April and is embroiled in a custody battle for his son.
"It's not so much about the skiing, it's about everything else," said an emotional Miller afterwards.
"It's been a hard year. I feel really lucky to have come out with a medal. I skied hard but it wasn't about that - it came down to luck. I'm very fortunate. I'm just really happy to have got on the right side of the numbers."
His fellow bronze medallist, 32-year-old Hudec, is the first Canadian to win an alpine skiing medal for 20 years, matching Ed Podivinsky's bronze in downhill in 1994.