USA snowboarder Jamie Anderson believes that the Rosa Khutor course in Extreme Park is "challenging".
The 23-year-old Team USA member qualified for the slopestyle finals second overall with a score of 93.50.
"It's a challenging course; a lot of impact for everyone," the Detroit News quotes her as saying. "Little 15-year-olds are, like, 'I'm not even old and my back is still sore every day. Not even from crashing, just from riding.'"
The finals will be held on Saturday.