Katie Visco may not be a household name, but her ultra-running accomplishments are mind-blowing. In 2009, Katie ran 3,132 miles solo across the United States from Boston to San Diego. At the age of 23, she became the second youngest and 13th woman to run that route. Ten years later, Katie ran 2,112 miles over 119 days across Australia. Her husband Henley Phillips was her support vehicle, but human-powered, on a bicycle. Henley had to haul their food, water, and gear through the Outback, which at times weighed up to 400 pounds.