Red Bull Crashed Ice qualifying in the US kicked off at the McFetridge Sports Center in Chicago. Registration was full within the first week of opening and a lottery system narrowed down the registrations to 50 athletes who would compete for a starting place in Saint Paul next month.
Skaters competed on a flat track, testing their speed and agility.
32 rookies and 16 Red Bull Crashed Ice veterans lined up in Chicago in a competitive evening of skating.
The skaters had to clear a series of obstacles during the time trial.
The six fastest men and the fastest woman earned tickets to the main event in Saint Paul.
Gabriel Renauld was the fastest skater, stopping the clock at 23.05 seconds. Gwynne Attenborough was the quickest among the girls.