Aug. 8, 2021 Olympic Silver Medalist Paul Chelimo named guest speaker for 25th Air Force Marathon WRIGHT-PATTERSON AIR FORCE BASE, Ohio – As the Air Force Marathon revs up to celebrate its 25th anniversary, two-time Olympian and one-time silver medalist Paul Chelimo will set the stage for celebration as the renowned guest speaker.“We are absolutely honored to have Paul Chelimo here for the 25th