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 ...

With most Tough Mudder competitions, the course — outside of the obstacles — usually is dry at the start and gets progressively muddier as the waves of athletes make their way through the course.

DOVER — Tough Mudder is not a mud race, it’s a challenge, according to Jane Di Leo, Tough Mudder public relations manager. Tough Mudder is a 10- to 12-mile course comprised of 26 military-style ...

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 last 10 days ...

OK, you’re gonna face some of your worst fears. Like water. Tight spaces. Water in tight spaces. Electric shock. Heights. You're going to test your endurance like you do when running a long race, but ...