The champion ultrarunner has followed a long trail to the top.
From racer to race director, Craig Thornley is taking it all in stride.
A few top trail runners share their racing wisdom.
Austin runner achieves the Grand Slam of Ultra Running plus Hawaii Ironman in one year.
Check out these great shots from the most celebrated 100-miler in the world!
JB Benna's film captures all the drama of the 2010 Western States 100.
A lot more than training goes into a successful run at the Western States 100.
Top men take a wrong turn, adding more than a mile to the course.
Check out these great photos from the most epic ultramarathon in the world!
Here's the skinny on one of the oldest ultramarathons in the world.