British speed skater Elise Christie broke the 500m world record at the second World Cup event of the season in Salt Lake City.
The 26-year-old clocked 42.335 seconds - beating Fan Kexin's 42.504 - in her quarter-final, but then fell in the closing stages of the final.
The Scot took 500m gold in the opening event of World Cup series in Calgary.
The Livingston-born skater won a silver medal and three bronzes at this year's World Championships in March.
She had previously competed at the 2010 and 2014 Winter Olympics.