Competitors race against the clock challenging themselves

Competitors race against the clock challenging themselves and each other during the Alamo Run Fest Feb. 21 at San Antonio. Participants started at the Alamodome and made their way through Downtown San Antonio and Fort Sam Houston before finishing back inside the dome. Hundreds of volunteer service members and families supported the runners as they made their way through Fort Sam Houston, offering them beverages, snacks and encouragement along the route. (U.S. Army Photo by Sgt. Aaron Ellerman, 204th Public Affairs Detachment/Released)