How fast can a human run 100 miles? with Zach Bitter

Zach Bitter holds the American record for the 100 mile, a mark he first set in 2013 and briefly held as a world record in 2019. He talks about the question that's kept him hooked on the distance for over a decade: how fast can a human run 100 miles when everything is optimized for it. He and Nicky get into his approach to training intensity, why he's opened up to cross training on the bike, and the mental trick of knowing when to zoom in on a single hard interval versus zooming out to see the whole training block. Zach also shares the story of the blood clot he discovered two days before a hundred miler this year, how close it came to becoming a medical emergency, and what recovery has looked like since.Enjoy this conversation with Zach!