The Ultra-Trail du Mont-Blanc and its sister races are drawing more Americans than ever.
This year's events will see 7,500 athletes from 77 countries.
The two-time Western States champion recently released his first book, Hal Koerner's Field Guide To Ultrarunning.
Here's what it means for those wanting to do the popular Rim-to-Rim-to-Rim run.
One of ultrarunning's most accomplished stars shares his philosophy on long runs, strength training, improving your technical skill set and
If you're an ultrarunner, you'll love this short video of the 2014 Leadville 100 that took place Aug. 16-17 in the high country of Colorado.
Check out the amazing images from this year's Leadville 100.
The medics at ultramarathons get a first-hand look at where races go wrong. Here is their advice to get you to the finish line. When it
Explore these 20 must-do trailheads that travel along all types of terrain.
Stay on two feet and keep your momentum going when you encounter an obstacle while running off-road.