More than 300 California runners have become sick with an unidentified virus following a mud run.
Tough Mudder participants fall ill after California race - Good Morning America
Hundreds of 'Tough Mudder' Participants Suffer Rashes After Race in California
Can Better Shoe Lacing Make You Run Faster? BOA Thinks So
An even tougher Tough Mudder? - The San Diego Union-Tribune
Hundreds involved in Tough Mudder race sick with possible staph, bacterial infections
Tough Mudder Race in California Gets Even Tougher After Illness Spreads
Tough Mudder athletes complain of rash after Sonoma County race
The 2023 Tough Mudder Event Schedule: Dates, Details, Venues, and More - Tough Mudder
Tough Mudder participants fall ill after California race
Seizures, electrocution, death: Has Tough Mudder gone too far?
Hundreds of illnesses followed a Tough Mudder race in Sonoma
Tough Mudder Race in California Gets Even Tougher After Illness Spreads
An even tougher Tough Mudder? - The San Diego Union-Tribune
California Tough Mudder race led to bacterial infections, runners say - The Washington Post
Another Solid Reason Not to Do a Mud-Obstacle Run - The Atlantic