Registration

2026 REGISTRATION OVERVIEW

Race Date: April 10 – 12, 2026 | Event Location: Fruita, Colorado

Distances: 100K, 50K, 21K, 10K

2026 Registration Fees

Info	10K	21K	50K	100K
Date	April 10	April 12	April 11	April 11
Price	$77.98	$155.05	-	-
Proc. Fees	$7.02	$13.95	-	-
All-In price	$85	$169	SOLD OUT	SOLD OUT

Limited spots available at this price. Prices may increase at anytime.

Please note, to help expand access across all distances, we’ve reserved a limited number of entries in the sold-out races for adaptive athletes. If you are an adaptive athlete looking to register for one of these sold-out races, please email our Athlete Services team here (desertrats@service.byutmb.world). When emailing, please use the subject line "Adaptive Athlete Registration" and include a screenshot of your UTMB World Series Adaptive Athlete approval. Our team will then reach out and send you a custom link to register.

TWO DAY CHALLENGE

If you're thinking about joining us on the desert trails this April, consider taking on our Two Day Challenge.

What is the Two Day Challenge? To enter the Two Day Challenge, you must register for any distances from 2 of the 3 race weekend days, all runners who finish any distance from 2 of the 3 race weekend days can be a part of the challenge. Once you register for both distances, you will be automatically entered.

April 10: 10K
April 11: 50K, 100K
April 12: 21K

All finishers of the two-day challenge will receive a custom print from local artist, Andrea Downs (@andreadowns.art), when you cross the finish line!

Runners who register within 50 days prior to Race Day will not have race materials personalized (name on merchandise apparel and name on race bib).
Runners must be at least 18 years old to participate in the 100k and 50k, 16 years old to participate in the 21k, and 12 years old to participate in the 10k.
Online Registration Closes: Sunday, April 5, 2026, at 11:59 pm PT or until the races are sold out.
We will take onsite registrations at the expo for any open distances. There is NO RACE DAY REGISTRATION.
Distance changes are subject to availability. Please reach out to the event inbox to inquire.
Distance change requests can be made via email up to 45 days prior to the event. After the 45-day deadline, all distance changes must be completed at the event expo when picking up your bib. There are no distance changes on race day.
Reference the REGISTRATION INCLUDES section on this page for the withdrawal policy.
For questions, please reach out to desertrats@service.byutmb.world.

Desert Rats Trail Running Festival by UTMB is the start towards your quest to the UTMB World Series Finals in Chamonix, the mythic HOKA UTMB Mont Blanc, the holy grail of trail running in the heart of the Alps, set on the three key distances: OCC (50K), CCC® (100K) and UTMB® (100M), the pinnacle trail running event.

As a UTMB World Series Event, the Top 3 female and Top 3 male runners of the 100K and 50K at Desert Rats Trail Running Festival gain automatic qualification to the CCC or OCC races, respectively.

All finishers of the Desert Rats Trail Running Festival by UTMB collect Running Stones that can be applied to the HOKA UTMB Mont-Blanc draw. To be eligible for the lottery, runners need to have a least one Running Stone and a valid UTMB Index.

Learn more