More than 5,000 people gathered at the start line of the Tough Guy Race this year, only to face the torture of a 13 km endurance course, designed by a former Grenadier Guardsman named Billy Wilson, in 1986. Competitors had to run and crawl through mud and flames, while dodging smoke bombs, barbed wire and electric charges.
The Tough Guy course is so dangerous the competitors had to sign a disclaimer saying �It�s my own bloody fault for being here�. According to the official site of the Tough Guy Race, there were many broken arms and legs this year, but luckily no one lost their lives.
Source: Boston