Members of Space Base Delta 1 speed past the Mercury marker during the inaugural run of the Solar System Trail at Peterson Space Force Base, Colorado, March 17, 2026. The new base running trail is ...

The mile remains one of the simplest – and most revealing – fitness tests around. It’s short enough to run hard, but long enough to expose weaknesses in your engine, pacing and running economy. While ...

Feeling inspired by Josh Kerr’s mile world record? Then test yourself over the classic 1609-metre distance, too. In its simplest terms, that’s a shade over four laps of a standard athletics track.

Iowa Army National Guard soldiers participate in the sprint-drag-carry event during an Army Fitness Test at Camp Dodge Joint Maneuver Training Center in Johnston, Iowa, Sept. 12, 2025. (Sgt. Ruth ...