So it's all over on snowy, soupy Cypress Mountain. China's Xu Mengtao wipes out while trying to complete the most difficult jump of the night, and the gold goes to Australia's Lydia Lassila (214.74), with China's Li Nina (207.23) and Guo Xinxin (205.72) claiming the silver and bronze.
Mengtao mighth have found a spot on the podium, but she lost her footing while landing her back/lay/double-full/full jump -- which has a 4.175 degree of difficulty -- and got turned around 180 degrees so she was facing the ramp before toppling.
Belmont's Emily Cook finished 11th with a score of 148.92, right behind teammates Lacy Schnoor (ninth, 172.89) and Ashley Caldwell (10th, 171.10)
Update, 11:24 p.m. Assoli Slivets of Belarus bumps Cooper from third place, scoring a 95.90 on her second jump for a total of 198.69.
. . . and Australia's Lydia Lassila follows Slivets's jump by bumping everyone down a notch, taking over the top spot with a combined score of 214.74. With one competitor remaining -- China's Xu Mengtao -- Lassila, a crowd favorite judging by the cheers when her score is posted, is assured of silver, with Li Nina having a hold on the bronze.
Update, 11:21 p.m. After nine competitors in the second jump, China's Li Nina (207.23) and Guo Xinxin (205.72) are 1-2, with Cooper hanging on to third. Cook is eighth.
Update, 11:14 p.m. So there will offically be no medal for Cook, who has been bumped to fifth overall after six competitors. Midway through the second run, the current leader is Australia's Jacqui Cooper, who has a combined score of 194.29.
Update, 11:06 p.m. Now that's the poise of an Olympic veteran.
Cook delivers on her second jump, a back/double-full/full, earning a score of 83.89, which temporarily puts her in first place.
She is unlikely to remain there -- she has a combined score of 148.92, while 10 competitors are yet to make her second jump -- but it was a nice moment of redemption after her first jump ended in disappointment.
Cook's second jump had a degree of difficulty of 3.525, the same as her first jump. After her smooth landing, she immediately raised both arms in the air and pumped her fists.
Update, 10:58: Emily Cook needs a terrific second jump and a sizeable helping of good fortune if she is going to earn a medal in women's aerials tonight at Cypress Mountain.
After the first run, the 30-year-old two-time Olympian is in 11th place among 12 competitors with a score of 65.03. Australia's Elizabeth Gardner is 12th with a 63.04.
That means Cook will be the second to go in the second round of jumps, since they go in reverse order of finish in the first round.
Update, 10:45: Tough first jump for Belmont's Emily Cook, who fell backward while landing to complete her jump and banged her head on the ground before recovering.
Cook came up holding her mouth, but appears to be OK. Her medal chances probably aren't, however. She scored a 65.03, which puts her seventh among the eight competitors to so far to make their first of two jumps.
Her jump was a Back/full/Double-full, which had a 3.525 degree of difficulty, the same as five of the 12 finalists. No one has a lower degree of difficulty on their first jump, though two will on the second jump.
Update, 10:43: Cook up now. Lacey Schnoor, her US teammate, just scored an 89.88 for fifth place among seven competitors.
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VANCOUVER, British Colombia -- The women's aerials are getting underway right now on right now at Cypress Mountain, despite foggy, sloppy conditions.
Belmont's Emily Cook, who finished fifth in qualifying, will be the eighth of 12 competitors. Currently, China's Mengtao Xu is in first place after five aerialists have gone.
She scored a 108.5 on a back/Lay/Double-full/Full, which had the highest degree of difficulty of any manuever in the competition.