Thousands of runners start the half-marathon during the Air Force Marathon Sept. 18, 2010, at Wright-Patterson Air Force Base, Ohio. A record breaking 12,000 runners registered for the events on Sept. 17-18. (U.S. Air Force photo/Michelle Gigante) 2011 Air Force Marathon registration opens Jan. 1 12/27/2010 - WRIGHT-PATTERSON AIR FORCE BASE, Ohio (AFNS) -- Air Force Marathon officials announced they will open registration for the 2011 marathon Jan. 1, with special sale pricing for New Year's Day. The 15th annual event will occur Sept. 17 at the National Museum of the United States Air Force here. In addition to a full 26.2 mile marathon, runners also can compete in a 13.1 mile half marathon, a 10K run or a 5K race. Marathon organizers are encouraging runners to register early this year. "In 2010, every single event sold out, with more than 12,000 runners registering," said Molly Louden, the race director. "We are increasing our race caps to 13,000 this year in order to accommodate those runners who didn't register in time last year, but we fully expect to sell out even earlier this year." To take advantage of this special New Year's Day pricing, runners must register online at www.usafmarathon.com.