19th Annual U.S. Air Force Marathon
Marathon participants walk to the starting line for the 19th Annual U.S. Air Force Marathon, Sept. 19, 2015, near Wright-Patterson Air Force Base, Ohio. Thousands of runners and cclists from across the country attended the three-day event that began Sept. 17 and included a Sport and Fitness Expo, Gourmet Pasta Dinner and a full, and half marathon, 10K, and 5K race. (U.S. Air Force photo by Senior Airman Matthew Lotz)