While Tough Mudder races are known to be grueling affairs that can take a toll on one’s body, an illness outbreak is affecting a large portion of California runners days after the race’s conclusion.

Add Yahoo as a preferred source to see more of our stories on Google. CBS and Tough Mudder have expanded their multi-year media partnership to feature the fittest, fastest athletes in the world ...

Without investment, turning a million-dollar idea on paper into a reality is nothing more than a dream. Or at least, that’s usually the case. Tough Mudder, the military-style endurance ...

More than 100 athletes who participated last weekend in the Tough Mudder obstacle course race at Sonoma Raceway have since reported experiencing fevers, vomiting, muscle pain and a distinct rash that ...

Extreme obstacle courses, mud runs, and the like are only increasing in popularity (surpassing both marathons and half-marathons combined, according to data from Running USA). But hearing about your ...

I was fortunate enough to sit down with Will Dean, founder and CEO of Tough Mudder. For anyone who’s been living under a rock these past four years, Tough Mudder is the enormously popular endurance ...

World's Toughest Mudder is like no obstacle course you've ever seen or endured. A five-mile stretch that challenges competitors over a 24-hour period, it is the biggest, baddest and most insane course ...

This week, in conjunction with the World's Toughest Mudder season-ending competition, Tough Mudder unveiled its new obstacles and special features for previous event participants for 2017. Some of the ...

SENECA, Ill. — Every participant in the Tough Mudder obstacle course is shocked to be here. Literally. Greg Perko was crawling through the mud when he got hit with 10,000 volts from one of the dozens ...

This 83-year-old is one Tough Mudder. Mildred Wilson of Missouri is the oldest person to complete in the endurance 5K — and she ran her third race on May 1, according to SWNS. Seemingly torturous ...

You’re standing in a huge field—maybe it’s at a park, a campground, or even the grassy expanse surrounding an airport. All around you are packs of mud-covered, grinning athletes. They’re climbing ...