Australians Belle Brockhoff and Josie Baff have both crashed out in the quarter-finals of the mixed snowboard cross teams event at the Beijing Olympics.
Both Australian pairings were drawn in the second of four quarter-finals and male boarders Cam Bolton and Adam Lambert successfully navigated the opening leg.
But with snow falling at Genting Snow Park, the luckless Brockhoff and Baff both failed to finish the second leg, ensuring that the United States and Switzerland claimed the top two positions and automatic qualification to the semi-finals later on Saturday.
Brockhoff needed medical assistance after crashing heavily midway through the race.
Competing at her third Olympics, Brockhoff was a close fourth in the women's snowboard cross event earlier in the Games.
Brockhoff and Bolton were Australia's top-seeded pair, with Baff and Lambert only being added to the field on Friday night following the late withdrawal of a team from the Czech Republic.
The mixed team event has been included on the Olympic program for the first time at the Beijing Games.
