What is Tough Mudder?

Tough Mudder presented by Merrell is a 10-12 mile (16-18 km) obstacle course designed to test all-around strength, stamina, teamwork, and mental grit.

"The teamwork and camaraderie out there was amazing."

-Lynn Gruber, Fortune

Tough Mudder is more than a fitness challenge, it's a set of values lived out on the course, and in everyday life.

The Mudder Pledge
  • I understand that Tough Mudder is not a race but a challenge.
  • I put teamwork and camaraderie before my course time.
  • I do not whine – kids whine.
  • I help my fellow mudders complete the course.
  • I overcome all fears.

"The idea of Tough Mudder is not to win...but to have a story to tell."

-New York Times

150+ Events

since 2010

10-12 Miles

course length


TM Tattoos

$8.5 Mil.

Raised for charities


total participants


team participation

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  • obstacle details
  • training tips
  • event info

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Reasons you're interested

FACT #1 - It's fun. Real fun.

Bring your friends. Bring your family members. Bring that dude in your office that always shows you photos of his cat. The more the merrier. Tough Mudder is not a race, it’s a teamwork-oriented challenge that puts camaraderie over course time.

FACT #3 – Finishing feels THAT good.

“Euphoria” is one word people often use to describe finishing. “Ecstasy” is another. Participating in a team event like Tough Mudder gets people in shape and out of their routines and comfort zones.

FACT #2 – You can do it. Seriously.

With the right amount of training and preparation, you can complete a Tough Mudder. At the start line all Mudders pledge to help their fellow Mudders complete the course and leave no Mudder behind. You are no exception to that rule.

FACT #4 – It gets you pumped up.

Once you sign up for a Tough Mudder, it’s time to start training. Tough Mudder isn’t just about event day, it’s about your entire Mudder journey--from the adrenaline rush of committing to the glory of that finish line beer.

Ready to run already?

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