Ultrarunning Growth in the U.S. Through a Geographic Lens
A look at the growth of ultramarathons in the U.S. from 2000 to 2024, including overall growth in events and their locations, and changes in participant travel.
Abby Hall and Caleb Olson won the Western States 100! Read our 2025 Western States 100 results article for the full race story. Watch Abby and Caleb’s post-race interviews, and enter now for your chance to win Altra Experience Wild 2 trail shoes.
A look at the growth of ultramarathons in the U.S. from 2000 to 2024, including overall growth in events and their locations, and changes in participant travel.
A statistical analysis of DNFs (did not finishes) in ultramarathons and their various causes.
This Week In Running’s trail and ultra recap for February 6, 2023.
This Week In Running’s trail and ultra recap for February 3, 2020.
This Week In Running’s trail and ultra recap for February 4, 2019.
An interview with Nicole Studer following her American 100-mile trail best, set at the 2015 Rocky Raccoon 100 Mile.
This Week in Running’s trail and ultrarunning report for February 2, 2015.
This Week in Running’s trail and ultrarunning report for January 26, 2015.
Matt Laye’s race report from the 2014 Rocky Raccoon 100 mile, which he won in his 100-mile debut.
An interview with Jared Hazen following his third place finish at the 2014 Rocky Raccoon 100 mile.
A video interview with Kaci Lickteig following her second-place finish at the 2014 Rocky Raccoon 100 Mile.
An interview with Nicole Studer following her win at the 2014 Rocky Raccoon 100 Mile.
A video interview with Matt Laye following his win at the 2014 Rocky Raccoon 100 Mile.
Live coverage of the 2014 Sean O’Brien 50 Mile and Rocky Raccoon 100 Mile.
AJW takes a look at some of the most impressive course records in ultrarunning.
Ian Sharman interviewed following his course record 12:44 at the 2011 Rocky Raccoon 100.
Race reports and results from 2011 Rocky Raccoon featuring Ian Sharman’s 12:44:33!
Meredith Terranova reports on pacing and crewing Ian Sharman at the 2011 Rocky Raccoon 100.
Ashley Arnold shares her first attempt at running a 100 mile ultramarathon at the 2010 Rocky Raccoon 100.
