The 2017 Reebok Spartan World Championships took place this weekend in California and hosted the most competitive elite field ever.
A rundown of some of the best obstacle racing events in the U.S. in 2017.
Scenes from the Spartan Race World Championships that took place on Oct. 2.
The 39-year-old future NFL Hall of Famer put his speed, strength and stamina to the test on Oct. 2 during the Spartan Race World Championship weekend.
Besides being the Spartan Race World Champion in 2013, Amelia Boone is also a corporate attorney for Apple and has a high tolerance for suffering.
Check out Brian Metzler's author page.
An obstacle course runner's paradise now doubles as a footwear testing center for Icebug.