The top 24 athletes in the Olympic quota allocation list qualified, with a maximum of four athletes per National Olympic Committee (NOC) allowed. All athletes qualifying must also have placed in the top 30 of a FIS World Cup event or the FIS Freestyle Ski and Snowboarding World Championships 2017 during the qualification period (1 July 2016 to 21 January 2018) and also have a minimum of 100 FIS points to compete. If the host country, did not qualify, their chosen athlete would displace the last qualified athlete, granted all qualification criterion was met.[4]
She suffered an accident and was injured in a training session on February 15.
Elimination round
In the quarterfinals the first three ranked competitors in each heat proceed to the next phase. In the semifinals the first three ranked competitors of each heat proceed to the Big Final. The 4th to 6th ranked competitors of each heat proceed to the Small Final.[6]