Check out this insane obstacle race run by soldiers in Chile. The course is part of the military pentathlon, a national and international competition held at the Military World Games. This was actually a practice run, but ran as a relay. Normally you would run the entire course by yourself. The agility and stamina these guy’s have is just incredible.
And you probably thought your 10K marathon was hard… Drop us a comment below and make sure to give this a share on Facebook before you go. (h/t Reddit)