The Estonian set freestyle skiing alight by winning the world halfpipe title aged 16 last year, and captured slopestyle gold at the Winter Youth Olympic Games in Lausanne earlier this month.

She leaves Colorado with two gold medals after also winning the women's ski superpipe title yesterday.

Sildaru won today under a new scoring system which sees judges giving an "overall impression" instead of the best score from a single run being declared the winner.

The youngster previously won slopestyle gold in Aspen in 2016, 2017 and 2019 and did not compete in 2018.

She now has nine Winter X Games medals, which draws her level with American snowboarder Shaun White for the most won by a teenager.

"I don't know, I haven't figured it out yet," Sildaru said to the Aspen Times when asked why she is so successful at slopestyle.

"I'm just trying to enjoy it and have fun skiing.

"I just tried to enjoy the course and make the most of it."

Reigning Olympic slopestyle champion Sarah Hoefflin of Switzerland had to settle for silver behind Sildaru, with Maggie Voisin of hosts United States third.

The men's ski superpipe final was also held on the last day of the Games, with American Alex Ferreira, the Olympic halfpipe silver medallist, grabbing gold.

World halfpipe champion Aaron Blunck took home silver for the US and Canada's Brendan MacKay won bronze.