What distance is the Tough Mudder Classic?

Tough Mudder Classic (2019-2021), previously known as Tough Mudder Full (2015-2018) and originally just "Tough Mudder," is now referred to as Tough Mudder 15K. 

But better than ever-- we've packed the highest density of obstacles on to the 9+ mile course with over 30 obstacle challenges-- an average of 3+ per mile.