Norwegian skier Kjetil Jansrud won his first Winter Olympics gold medal after triumphing in the men's super-G, while American Bode Miller earned a historic podium place.
Jansrud, a bronze medallist in the downhill a week ago, posted a time of one minute 18.14 seconds to leap to the top of the standings at Rosa Khutor Alpine Center.
His time was 0.3secs quicker than nearest rival Andrew Weibrecht, who settled for silver, with his fellow American Miller and Canadian Jan Hudec sharing bronze with an identical time of 1min 18.67secs.
Victory in the super-G may be especially sweet for Jansrud, who tore a ligament in his knee in the same event at the 2013 World Championship, which ended his season.
He said: "I'm floating and feeling great. It hasn't sunk in yet.
"It means the world to me. It's the biggest thing you can win. It's something I have worked for since I was a little kid, so I'm just going to enjoy it."
Eva Samkova of the Czech Republic clinched the gold medal in the women's snowboard cross as American favourite Lindsey Jacobellis crashed out once again.
Jacobellis, who famously blew gold in Turin in 2006 when she fell after attempting a stunt on her final jump, slid out of contention after falling when well ahead in her semi-final.
Samkova executed a clear run to ease to victory ahead of World Cup leader Dominique Maltais of Canada, with French teenager Chloe Trespeuch taking bronze.
Sweden saw off stiff competition from Russia and France to take gold in the men's 4x10k cross-country relay.
An impressive final run from Sweden's Marcus Hellner secured a first-place finish for his team, who had been dominant throughout.
Russia won the silver medal, finishing 27.3 seconds behind Sweden. France finished in third to win their first ever medal in this event, while favourites Norway finished fourth.