REI Presents: How to Run 100 Miles

What happens when two friends sign up for a 100 mile race? Brendan Leonard and his buddy Jayson Sime had never run an ultra before but signed up for the 2017 Run Rabbit Run 100. It makes for great treadmill TV. Especially if you want to see what an ultra running race and the training for it looks like for regular guys who aren't sponsored athletes.