Kelly Sildaru of Estonia became the first athlete under the age of 15 to have won two Winter X Games gold medals ©Getty Images

Kelly Sildaru of Estonia became the first athlete under the age of 15 to have won two Winter X Games gold medals as she claimed victory in the women’s ski slopestyle competition on the final day of the event in Aspen in Colorado.

The 14-year-old, who claimed slopestyle gold last year, topped the podium with a formidable score of 92.33 points, achieved during her first run.

Tess Ledeux of France earned silver, 2.33 adrift of the Estonian, while Johanne Killi of Norway earned bronze for the second consecutive edition of the Winter X Games in Aspen.

“I know I can do a better run, but it ended up well,” Sildaru told the Denver Post.

“My first run wasn’t as good as the last one.

“I wanted to do a better run.”

In the men’s snowboard slopestyle event, Marcus Kleveland of Norway clinched his maiden Winter X Games title as he scored a total of 91.66.

His display in his first run proved enough for him to seal the gold medal, with Canada’s Tyler Nicholson taking home silver on 89.00.

Marcus Kleveland of Norway clinched his maiden Winter X Games title by winning the men's snowboard slopestyle event ©Getty Images
Marcus Kleveland of Norway clinched his maiden Winter X Games title by winning the men's snowboard slopestyle event ©Getty Images

Nicholson’s team-mate Mark McMorris, Olympic slopestyle bronze medallist at Sochi 2014, finished third after his routine was given a score of 87.33.

“This weekend could not have gone any better,” said Kleveland, who landed the first-ever quadruple cork in competition during the big air event, said.

 “I couldn’t believe it.”

Sweden’s Daniel Bodin won the men’s snowmobile best trick event with a score of 85.33.

Brett Turcote of Canada was narrowly adrift of the winning total as his effort yielded 83.33 points, while American Joe Parsons picked up the bronze medal.

Colten Moore of the United States was rushed to hospital after he suffered a nasty fall when attempting a double backflip.

A spokesperson for ESPN told the Denver Post that the American rider was being transported to “another facility for further treatment and evaluation”.

His brother, Caleb Moore, died in hospital after an accident at the 2013 Winter X Games.