As extreme sports go bigger and bigger, their athletes are getting younger and younger. Sabre Norris, a 9-year-old from New South Wales, Australia, just landed her first 540 air on a halfpipe.

"My skating all started because I wasn't allowed to get a bike because we don't have a garage," Norris told The Berrics. "My mum bought us skateboards instead."

With three years of experience to her credit, she says she tried the 540 75 times that day (verified by putting a rock on a table for every attempt), meaning that before she made her trick, she'd spun around 112.5 times. She made no comment about her equilibrium.

"I was frothing," Norris says, adding that she's already trying 720s. "I still can't ride a bike, but I can do a 540."