Is it possible to run an ultramarathon with no prior background as a runner? Absolutely. And our guest today proves that - as she went from no running or endurance background and 100+ pounds obese to finishing multiple 50Ks in the top 10, completing the Leadville 100M Mountain Bike Race, and...

What does it take to have an amazing race in a type of terrain that is a different style from what you’re normally used to?  For Jeff Mogavero, an accomplished mountain ultrarunner for On Running, he looked to answer that question by racing in the Javelina Jundred 100 miler, just months after...

In one of the most impressive endurance accomplishments of the year, Tara Dower set the overall Fastest Known Time on the 2,000+ mile Appalachian Trail earlier this year in 40 days , 18 hours, and 6 minutes. It was an attempt that required mental toughness, extensive planning and curiosity,...