Runners participate in the 31st annual Ekiden Run at Yokota Air Base, Japan, June 7, 2015. The Yokota Striders running club sponsored the annual Ekiden Run consisting of three different races at this event: a 4-person 5k relay, 5k race, and 2k Kid's Run. (U.S. Air Force photo by Osakabe Yasuo/Released)
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