Scaling walls, crawling through mud, climbing ropes, and sprinting across rugged terrain. Obstacle course racing is one of the fastest-growing sports in the United States, and it's gaining popularity around the world. The sport is grueling, demanding, and intensely satisfying if you prepare, train, and know what to expect.

Only The Essentials of Obstacle Race Training can ensure you will be ready. Authored by David Magida, founder of Elevate Interval Fitness and member of the Spartan Race pro team, and Melissa Rodriguez, former contributing editor for Mud & Obstacle...