Sixties

Karl Metzer has fallen off pace to be the fastest to run the Appalachian Trail but if he picks up the pace....

"Karl has to average 60 miles a day from here out. There's no doubt in my mind he can do that if things go well. But it's a hard trip," Simpson said.

Follow his progress at whereskarl.com
I think it is a little too much for Speedgoat.