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 ...

When Will Dean entered Tough Mudder in a business-plan competition at Harvard Business School, judges were skeptical about the viability of a team-based military obstacle course combined with an ...

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 ...

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 ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. SONOMA COUNTY, Calif. (KRON) — It’s been a year since participants in a Tough Mudder Race in Sonoma County. They reported having ...

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 ...

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 ...

Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The Uplift," ...

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 ...

When you launched Tough Mudder, how did you deal with the naysayers? Anytime you step away from the norm, others are tempted to dismiss you. At the same time, when you’re starting a company, you have ...

Tough Mudder – which rose to fame with extreme endurance events featuring some participants getting electrical shocks or crawling under barbed wire – is splitting into two companies as its events face ...