Silver was earned by Vivian Cheruiyot in 29:32.53, and bronze was claimed by defending Olympic champion Tirunesh Dibaba, who closed in 29:42.56.
U.S. Olympic Trials champion Molly Huddle finished sixth overall, and broke the American record in the process. Huddle finished in 30:13.17, which broke the previous record by a whopping nine seconds.
The race was destined to make history from the beginning as the competitors established a fast championship showdown from the gun.
Alice Aprot Nawowuna of Kenya established an early lead among with a 3:01 initial 1000m split. The world junior bronze medalist from Kenya took the field through 2000m in 5:55, and was followed by the Ethiopian powerhouse duo of world champion Ayana and defending Olympic champion Dibaba. The early move set a precedent for the blazing-fast pace that led the 10K.
Nawowuna's front-running and brisk pace established a lead group early on. U.S. Trials winner Huddle attempted to run with them, but was unable to hold the pace, and found herself running alone around 12 minutes into the race. But running alone didn't phase Huddle in the slightest.
Meanwhile, Nawowuna took the field through an unprecedented 5K split of 14:46. Huddle followed nine seconds behind in 14:55--just over 10 seconds slower than her American record 5K time of 14:42.
As if the pace wasn't fast enough, Ayana shot to the front and established an even faster pace just after the 5K mark. With nine laps to go, Ayana found herself with a 20-meter lead on the field, and no challengers in sight. The only woman who attempted to come close was reigning world champion Cheriuyot, who trailed Ayana by a sizable amount.
Ayana powered through 8K in 23:25, which is considerably faster than the world-record pace set by Wang Junxia of China in 1993. On her way to setting the world record of 29:31, Junxia ran 23:59 for 8K.
In just her second track 10K ever, Ayana into the record books with a world record of 29:17.46--15 seconds faster than silver medalist Cheruiyot and 42 seconds faster than Junxia's long-standing mark.
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Credit: James Lang/USA TODAY Sports