Diving into Ultramarathon DNF Data
A statistical analysis of DNFs (did not finishes) in ultramarathons and their various causes.
Mallory Richard
How Much Does It Cost To Be A Competitive Trail Runner?
Being a competitive trail runner is not cheap. Read this quantitative analysis of what it costs to trail run competitively.
Underrated Ultra Performances: Great International Grandmasters
A celebration of some overachieving grandmasters from outside of North America, through the lens of data.
A Data-Driven Primer on the IAU 24-Hour World Championships
A data-driven look at trends in 24-hour running in advance of the 2023 IAU 24-Hour World Championships.
A Data-Driven Primer for the Backyard Ultra World Championships
A look at the history or and trends in backyard ultrarunning through the lens of data.
Underrated Ultra Performances: North Americans Who Dominate
A look at some exceptional achievers in the world of ultrarunning, through the lens of data.
Stories from the UTMB Races Through the Lens of Data
Using data to look at some remarkable stories from the various UTMB races through the years.
The Increasing Competitiveness of Women’s Ultrarunning
A statistical analysis of the increasing competitiveness of women’s ultrarunning, using the 2023 Western States 100 as a case study.
Feeling the Heat: How Temperature and Course Conditions Affect Western States 100 Finishing Times
An analysis of the effects of heat and course conditions on finish times at the Western States 100.
Golden Trail Versus UTMB: A Data-Driven Look at World Series Competitiveness
A statistical analysis of the competitiveness of the Golden Trail World Series and the UTMB World Series.
A Guide to Mountain, Ultra, and Trail Runner Rankings
A breakdown of the different ranking systems for mountain runners, ultrarunners, and trail runners.
If at First You Don’t Succeed, Run That 100 Miler Again
The data show that runners improve their 100-mile finishing times when they repeat the same race two or more times.
Yes, Your Trail Running Shoes Cost More These Days
An analysis of how the price of trail shoes has increased over time.
Hotbeds, Hidden Gems, and Underdogs: Ultramarathon Distribution Across the U.S. and Canada
A statistical look at the geographical distribution of ultramarathon races and runners in the United States and Canada.
The Art of Pacing: Patrick Reagan’s Winning Performances at the Javelina Jundred Mile
A statistical analysis of Patrick Reagan’s consistent top performances at the Javelina Jundred Mile and a look at the top picks for this year’s race.
Something for Everyone: How Generous Cutoff Times Contribute to Our Sport’s Diversity
A statistical analysis of the effect more generous race cutoff times have on diversity in ultrarunning, in terms of gender and age.
How to Win UTMB, According to the Data
A statistical analysis of checkpoint data to determine where in the race UTMB is generally won.
How Much Slower Are Hilly Races?
A statistical analysis of finishing times in 50-kilometer races with various amounts of elevation gain.
