Tough Mudder...

Tough Mudder is the brain child of ex-British Forces, Harvard Business School graduate Will Dean and former lawyer Guy Livingstone. These Brits have captured the minds of the toughest of their American hosts by creating the ultimate challenge!

Tough Mudder's pitched as "probably the toughest event on the planet," an event in which the organisers are fully aware that eventually someone will die (all competitors must sign a death waiver).

Here's the official video of Tough Mudder's third event held in November 2010:

If the challenge looks difficult the training looks pretty hard too. Checkout some Tough Mudder training montages by inspirational seniors: Mustache Man and Age and Treachery (a Husband and Wife team).

Here's an interview with Tough Mudder's Chief Sadist Will Dean by Forbes Sports:

To keep up to date with all things Tough Mudder head here.