Great Britain's Jenny Jones soars into first place on her second run with a run of 87.25.
Sina Candrian of Switzerland notches an 87, pushing Jamie Anderson to fourth, so Jamie will have to improve on her first-run score to medal.
A big fall for Sarka Pancochova of Czech Republic but she gets to her feet; she did not finish her run and gets a score of 20. Still, her first run score is good for third place at the moment.
Enni Rukajarvi flies to the top of the leaderboard with a 92.50 score for the Finn. Karly Shorr up for the USA.
Solid run for American Karly Shorr and a score of 75, good for just sixth place though.
Here's Jamie Anderson's last shot. She needs better than an 87 to get into medal position.
Three very nice jumps from Jamie Anderson... her score: 95.25 to move into first place with two competitors to go!
And that will do it: Gold medal for Jamie Anderson of the USA!
Silver goes to Finland's Enni Rukajarvi (92.50) and bronze to Great Britain's Jenny Jones (87.25). The USA's Karly Shorr was sixth at 75.00.