IMAGE DISTRIBUTED FOR SAFEWAY - Summer Sanders, Olympic Gold Medalist and Team Safeway runner, warming up for the Nike Women's Marathon in San Francisco on Sunday, Oct. 14, 2012. Sponsored by Safeway,... more 
IMAGE DISTRIBUTED FOR SAFEWAY - Summer Sanders, Olympic Gold Medalist and Team Safeway runner, warming up for the Nike Women's Marathon in San Francisco on Sunday, Oct. 14, 2012. Sponsored by Safeway, the Nike Women's Marathon is the largest women's marathon in the world with 25,000 runners. (Photo by Tony Avelar/Invision for Safeway/AP Images) less 
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Associated Press
Sun, Oct 14, 2012 3:18 PM EDT