About This Race
The Desert RATS 100K represents the premier challenge within Fruita's multi-distance trail festival, now part of the UTMB World Series. Set against the high desert landscape of western Colorado, this race tests experienced ultrarunners through a multi-loop format that demands technical skills, strategic pacing, and mental resilience across a 12-16 hour effort. Runners navigate Fruita's signature singletrack in a course design that brings them repeatedly through the same terrain under changing conditions. What starts as cool morning desert transforms as the sun climbs, turning familiar rocky sections and technical features into progressively harder obstacles. The loop format allows for crew access and strategic planning but offers no psychological reprieve—you know exactly what's coming next. As a Western States 100 qualifier, the race draws runners seeking both a serious ultrarunning challenge and entry into one of the sport's most competitive lotteries. The extended time on course means experiencing the full range of high desert conditions, from dawn's crisp air through midday heat and into evening shadows across the Colorado Plateau.
The course utilizes Fruita's renowned trail network in a multi-loop configuration, combining technical singletrack with the area's characteristic desert terrain. Runners encounter rocky sections, exposed ridgelines, and the region's distinctive red rock geology throughout each circuit. The loop format provides regular access to aid stations and crew support while requiring the mental discipline to return to increasingly familiar ground as fatigue builds.
Location
Practical Info
April in Fruita brings mild to warm conditions with daytime temperatures typically ranging from the 60s to 80s Fahrenheit, though desert weather can vary significantly. Expect dry air, strong sun exposure, and potential for wind. Mornings start cool, requiring layers that can be shed as temperatures climb.
Fruita offers a range of lodging from budget motels to vacation rentals, with nearby Grand Junction providing additional hotel options. Book early as the festival draws significant crowds to this small western Colorado town. Many runners camp near the race venue to simplify logistics and immerse in the festival atmosphere.