Support WBURHow Many Calories Do Olympic Athletes Need?Eliza BarclayAugust 05, 2016 ShareMeb Keflezighi and Galen Rupp lead the race during the U.S Olympic Marathon Team Trials in February in Los Angeles. (Getty Images)
Meb Keflezighi and Galen Rupp lead the race during the U.S Olympic Marathon Team Trials in February in Los Angeles. (Getty Images)