The U.S. Air Force Marathon is held the third Saturday in September and traverses historical places on Wright-Patterson Air Force Base, Ohio, including the National Museum of the U.S. Air Force, Huffman Prairie Flying Field, and the base flight line, Oct. 29, 2019. This promo video informs viewers that registration for the 2020 marathon opens on Jan. 1, 2020. (U.S. Air Force video by Matthew Clouse) More