Originally Posted by CheeseForSteeze
My cousin who has run several marathons including one in the grueling 80 degree humidity of Hawaii and my friend who is a super marathoner living in Boulder who attempted his first 100 mile race in the desert this year (Zion 100) as well as the Leadville 50 and 100 both have said this is one the the toughest 10k events you can do.
I think I'll take their word over an internet commando who has has the word tard in his name (and proven it belongs there more than once) who posts mindless ramblings about some alleged wilderness camp where, more than likely, the reality was them circle jerking each other while they stumbled through poison ivy and ate double stuffed oreos.
This is probably some of the best info in this thread. Ultra marathoners are nucking futs, and I can guarantee that nobody on the site, especially cross fit gugu OP can get through 1/2 of the leadville race. For an ultra endurance runner to say the tough mudder is one of the hardest 10 mile races you can do it says a lot.