Gnar Runners

Horsetooth RockGnar Runners events are designed to promote enthusiasm and passion for the sport of mountain, trail and ultrarunning in and around the beautiful mountains of Northern Colorado. 

Whether you are leading the charge at the front of the field, playing host in the middle of the pack or chasing course cut-offs, our dirt-based races are geared towards helping you achieve your off-road running goals in stunning outdoor environments.

While we seek to create challenging courses on as much gnar-filled terrain as we can reasonably find, we also guarantee impeccably marked courses, bountiful aid stations and a post-race atmosphere to remember.

Be gnarful out there!

Recent Posts

Vince Vigil Gnar Slammer

This summer, we’re going to follow four runners on their quest to finish the Gnar Slam. To earn the title of Gnar Slammer, our runners will need to complete the Quad Rock 50, the Never Summer 100km, the Black Squirrel Half Marathon, and the Blue Sky Marathon under the races’ respective cut-offs.

All four are relatively new to ultrarunning and one – Vince Vigil – has never raced longer than the half marathon distance. We’ll be introducing our Gnar Slammers over the next two weeks as we get ready for the Quad Rock preview run on April 1.

Today we’d like to introduce you to Vince Vigil, a self-described “old fat guy” who’s “gonna try and run the Gnar Slam.”

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