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!

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Lory Summer Trail Series

Join us June 9, 16, 23 & 30th for a fun series of shorter midweek trail races. Our goal is to offer a fun, low-key series of races designed to give newer trail runners an opportunity to dip their toes into the trail racing waters, and to offer more experienced trail racers a chance to sharpen their speed on shorter, quicker courses. All races will start between 6:00pm and 6:15pm, ranging in distance from 5k to 12k. See full details here.


In order to reduce crowding at the start and to be able to cap our numbers at 50 as approved by the Larimer County Health Department and Lory State Park, all participants will be required to pre-register. There will be no race-day registration. We will be offering a rolling wave start from 6:00 through 6:15. Results will be tabulated according to chip times, with series points awarded based on finish times. Top series finishers will earn unique awards.

We’ll have a wide selection of vintage Gnar race shirts, and all registrants are welcome to their pick to call their own.

After each race, we will be providing pizza with support from the Fort Collins Running Club and beverages with support from New Belgium Brewing. Appropriate food and beverage distribution measures will be put in place to ensure safety. Full safety measures and protocols are viewable here and will be communicated to race participants in pre-race emails. 

Race dates and distance are as follows:

June 9: Flat and Fast Eltuck Valley 5k (250′ elevation gain)
June 16: Into the Hills Eltuck 5k (700′ elevation gain)
June 23: Into the Hills Eltuck 10k (1,700′ elevation gain)
June 30: Flat and Fast Eltuck Valley 12k (500′ elevation gain)

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