Founded in 2010, Tough Mudder now has six million participants worldwide, hosting 130 challenges and endurance events ...

Some unseasonably cool temperatures made for some cold water at some of the obstacles in Saturday’s Tough Mudder Indiana.

U.S. Customs and Border Protection (CBP) is hosting a recruiting event at Tough Mudder Chicago on August 23rd and 24th, with ...

When Nicole Villagran signed up to do her first Tough Mudder course, she thought she’d be getting an entertaining, if messy, workout. She got that — and much more. Villagran has spent the past ...

"Tough Mudder, in general, will help you prepare for any obstacle you may face in life," said Bishop. "It really tailors to your fears, whether it be heights, darkness, you know, water.

Dean said Tough Mudder had signed up 70 franchisees in the U.S. and could do as many as 1,000 in the U.S. and another 1,000 abroad. Follow USA TODAY reporter Nathan Bomey on Twitter @ NathanBomey.

Sunday, September 3, 4 p.m. – Tough Mudder X Finals, Twin Cities, Minnesota Saturday, October 28, 2 p.m. – Toughest Mudder Midwest, Chicago, Illinois ...

Tough Mudder has participants run 10- to 12-mile courses and obstacles like Electroshock Therapy (running through live wires) and the Mud Mile (running through waist-deep mud).

Tough Mudder races are notorious for their intensity, but the company is now unrolling an option for participants who want something a little less extreme. According to a press release, in 2016 ...

Nolan Kombol, head of course design for Tough Mudder, tells SI.com the 11-month process of reevaluating the group’s 40-plus obstacles was the first broad sweep of changes in course history.

Colorado Tough Mudder events are scheduled Aug. 10-11 at Sterling Ranch near Chatfield Reservoir (three event types, offered both days), with events at 20 other U.S. locations this year.