Imagine sprinting through mud, climbing towering walls, and diving under barbed wire—all in the name of time. Obstacle races take more than just sports; they are an extreme test of endurance, skill, ...

There are four levels of Spartan races, ranging from the 5K, 20-obstacle sprint to the 50K ... swinging from ropes and swinging from rings. To make the course even more difficult, the elevation ...

The obstacles require racers to haul themselves up and over barriers and swing on ropes and monkey bars. Forearm and upper back fortitude is essential to crushing a Spartan race—and you can ...