5. Kaya Turski
Photograph By Mark Kohlman/ESPN
The most decorated woman in ski slopestyle history, Canadian Kaya Turski earned the first women's ski slopestyle four-peat in X Games history in 2013 in Tignes, France. She won again at X Games Aspen 2014, just five months after undergoing knee surgery. She's constantly pushing her sport to the next level. In 2011 at a big air contest in Europe, she became the first female skier to land a switch 1080 in competition.