Emma Coburn, 24
Another Colorado grad and 2012 Olympian, Coburn is the reigning U.S. steeplechase champ. World-ranked No. 3 in '14, she's a medal favorite for Beijing.
Molly Huddle, 30
The Notre Dame alum holds the U.S. record at 5,000 meters and stepped up to the 10,000 this season. She beat Flanagan to win the U.S. title on June 25, securing a world championship berth.
Ajeé Wilson, 21
The Neptune, N.J., 800-meter specialist won the 2012 world junior championships. Her PR of 1:57.67 at a Diamond League event was fastest in the world in '14.
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DON RYAN/AP (COBURN)
CHRISTIAN PETERSEN/GETTY IMAGES (HUDDLE)
KIRBY LEE/USA TODAY SPORTS (WILSON)