Snowboard halfpipe debuted in 1998 and went on to become the second-most-watched event at the Winter Olympics. Adding the ski event was a no-brainer. "Ski halfpipe could become more popular than snowboarding halfpipe," says Steele Spence. "Skiing looks more accessible and relatable to people."
What to watch for: Ski halfpipe will take place at the same venue as the snowboard event – with 600-foot-long, 22-foot-high walls – and the double cork 1,260 is the trick that will separate gold medalists from the rest. (It's a progression of Shaun White's double cork in 2010.) "It's the trick to beat," says Steele.