Desert Rats Trail Running Festival

APR
8-11
2027
Three days of trail races in Fruita, Colorado with four distances, desert singletrack views, and qualifying opportunities for UTMB World Series and Western States.
8-11 Apr 2027
UTMB 20K/50K/100K 100 kilometers 48 kilometers Half Marathon 9 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

Desert RATS Trail Running Festival by UTMB

The Desert RATS Trail Running Festival by UTMB is a multi-day trail running event held in Fruita, Colorado. The festival program comprises three days of racing across trails that run along the Colorado River, up onto mesas, and over red slickrock cliff buttes and desert singletrack.

Races include four distances with documented elevation gains:

  • 100 KM 2050 M+ elevation
  • 48 KM (50K) 1050 M+ elevation
  • 21 KM 700 M+ elevation
  • 9 KM (10K) 200 M+ elevation

The event functions as a dual qualifier. Runners who complete the 100 KM within 20 hours earn a qualifier to bid for a spot in the Western States Endurance Run. Finishers of the 100 KM, 50 KM, or 21 KM receive a UTMB Index and Running Stones that can be applied to the UTMB World Series Finals lottery.

The festival format includes a basecamp festival party and a free kids race, and the organizer describes additional weekend activities for families. The UTMB Community Bibs program is associated with the event; a portion of community bib funds and half of community bib registration costs are directed to a local charity chosen by the race team, and the program is part of The IRONMAN Foundation initiative. Visit the organization's website for the most recent information.

100 km
100k
48 km
50k
Half Marathon
21k
9 km
10k

Events nearby

A last person standing backyard ultra on a 4.17 mile singletrack loop at the 18 Road trail system in Western Colorado, scheduled for October 3, 2026.
A 2 mile course at Moon Farm in Fruita where participants carry a pumpkin picked from the patch; pumpkins are included with entry and are weighed and marked beforehand.
Trail ultramarathon in Fruita Colorado with multiple distances on singletrack through high desert terrain and significant elevation change.
Experience a 150 hour self discovery journey through the Colorado high desert featuring five unique routes and a focus on solitude and endurance.
Add Event
Help us complete the calendar!
  • Distance is at least 5 km
  • Event has a website or Facebook page
Website
Optional: Please provide your e-mail address if we may contact you.
Report a change
We will only update the data if the information is also on the website.