Canadians Mark McMorris and Laurie Blouin claimed the snowboard big air gold medals as the International Ski Federation (FIS) Snowboard and Freeski World Championships in Aspen reached their climax.
McMorris received scores of 92.75 and 86.50 on his opening two runs to post a total of 179.25 points - and win a maiden world title.
The 27-year-old is a two-time world silver medallist and two-time Olympic bronze medallist in slopestyle, but turned it on in today's big air final to beat compatriot Max Parrot by a single point.
Norway's Marcus Kleveland, who already won slopestyle gold at the FIS World Championships in Colorado this month and is the Winter X Games big air champion, was the men's bronze medallist thanks to a final-run score of 97.75 - the best of the day.
Blouin, previously a world champion and Olympic runner-up in slopestyle, also won by a point in the women's contest.
A final run scoring 89.75 gave Blouin a total of 177.75 and denied Zoi Sadowski-Synnott a second gold medal of the World Championships.
The New Zealander, who had already secured back-to-back slopestyle world titles, came second, with Japan's Miyabi Onitsuka completing the podium.
Onitsuka placed second in the X Games big air at this resort last month, when Sadowski-Synnott was third.
Watch Anastasia Tatalina make history today by becoming the the first woman ever to stomp both left and right side double cork 1260s in the same competition on her way to claiming Aspen 2021 big air World Championships gold... 🥇🙌 #ASPEN2021 pic.twitter.com/4eARk8RBjc— FISfreestyle (@FISfreestyle) March 16, 2021
On skis, 20-year-old Anastasia Tatalina was a resounding victor for the Russian Ski Federation and made history as the first woman to land left- and right-side double cork 1260s in competition.
Tatalina scored 93.00 and 91.50 for a total of 184.50 - some 19 points ahead of Lana Prusakova, who won silver for the Russian Ski Federation.
China's Eileen Gu had to settle for third place - a stunning third medal of the World Championships for the 17-year-old, following slopestyle and halfpipe victories.
On the men's side, Oliwer Magnusson backed up being the best performer in qualifying by winning the gold medal.
Needing to increase a second-run score of 87.00 by at least 2.00 points on the final run of the competition, the Swede dropped a 91.00 to win and relegate Canadian teenager Edouard Therriault to second place.
Swiss skier Kim Gubser was third.
Today was the last day of competition in Aspen.