After blowing through 7 pairs of shoes and running an average of 51.6 miles a day, Karl comes to the finish of his 2,064 mile journey across the historic Pony Express trail from Sacramento California to St. Joseph Missouri.


The sure-footed, indefatigable Karl now adds Red Bull Human Express to his long list of accomplishments.


Check out http://RedBullUSA.com/HumanExpress to find more ridiculous stats on the Red Bull Human Express and the amazing ultra marathoner behind it.