Sadowski-Synnott produced a superb final run to clinch gold in Colorado’s Rocky Mountains.

It was the New Zealander’s fourth slopestyle title and fifth gold overall at the X Games.

Sadowski-Synnott finished ahead of Australia’s Tess Coady and Japan’s Kokomo Murase who claimed silver and bronze respectively.

Canada’s Megan Oldham earned her first X Games gold when she emerged victorious from the women’s ski Big Air final.

Oldham became the first woman to pull off a triple cork after completing three off-axis flips to earn her a perfect score of 50 points.

The world bronze medallist went on to register an overall total of 91 to take the title.

"It felt amazing to make history here in Aspen," said Oldham.

"It’s always the best course every single year.

"To come here and be able to push myself to my limits and kind of scare myself - and push women’s progression - it’s just an amazing feeling."

France’s Tess Ledeux clinched silver with 90, while Scotland’s Kirsty Muir bagged bronze with 85.

Australia’s two-time Olympic medallist Scotty James became X Games men’s snowboard superpipe champion for the fifth time.

James is just three titles away from equalling the record held by American star Shaun White.

Switzerland’s Jan Scherrer came second, with Australia’s Valentino Guseli sealing third spot.

Olympic slopestyle bronze medallist Jesper Tjäder of Sweden won the ski knuckle huck event.

Austrian Matej Svancer, who was the youngest in the field at 18, claimed silver, with Colby Stevenson of the United States taking bronze.