You’ll wish you had nightvision.
Hate dark, closed-in spaces? You’re gonna have to suck it up for this obstacle. Crawl through narrow, dark, muddy trenches and watch out for rocks, obstructions, and the occasional splash of muddy water from the Mudder crawling ahead. This obstacle is almost pitch black until you finally reach the other side.
Plank Holds (with elbows touching the floor): 20 seconds on, 10 seconds off. Do 8 rounds.
Calf raises (standing with your toes on a step): 10x on both feet, 10x on each foot, 10x on both feet)
Bent Arm Pull-Up Hang (bring your chin over the bar): 15 seconds each. Do 4 rounds.
Mountain Climbers: 15 on each leg. Do 4 rounds
Tough Mudder Tips
Crawl low and fast.
Use your abs to crawl through this obstacle. If you don’t like enclosed spaces, ask one of your teammates to go ahead of you and call out where the twists and turns are.