"Goggins initially attempted to enter Badwater 135 without any ultra experience, but given it is an invite-only event, he was told he would need to run a 100-mile race first. Having never even run a marathon before, he completed the 2005 San Diego One Day, running 100 miles in 18:56:00."

https://run247.com/running-news/ultr...2018%3A56%3A00.