Courtney Dauwalter and Thomas Cardin won this weekend’s Chianti Ultra Trail 120k. Our Chianti Ultra results article has the story!

breathing

By Corrine Malcolm Comments

A look at the non-asthma breathing problems that occur during endurance running.

By Tracy Beth Høeg MD, PhD Comments

An in-depth report from the 2015 Medicine & Science in Ultra-Endurance Sports Conference held before the 2015 Western States 100.