OpenJul 24–25, 2026Colorado · 2026–27 season
Run. Race. Move Mountains.
Gnar Runners events are designed to promote enthusiasm and passion for the sport of ultra, trail and road running in and around the majestic peaks of the Colorado Rockies.
TrailRoad5K → 100KUltraFamily-friendly
12 races
Why Gnar
Dialed races. Stunning places.
Whether you're leading the charge at the front of the field, playing host in the middle of the pack, or chasing course cut-offs, our races are geared toward helping you achieve your goals in stunning outdoor environments — with impeccably marked courses, bountiful aid stations, and a post-race atmosphere to remember.
12races this season
5K → 100Kevery distance, trail and road
2011Fort Collins born · racing the Rockies since
Upcoming races
Pick your line
Trail and road — from a first 5K to a hundred kilometers of Colorado high country.
OpenJul 24–25, 2026OpenAug 2026 (Mondays)OpenAug 22, 2026OpenSep 12, 2026OpenSep 25–27, 2026
OpenOct 2026 – Apr 2027Partners
Powered by our partners
The sponsors and local businesses behind every Gnar Runners start line.
Community
Become part of the Northern Colorado running community.
We’re committed to building community through year-round training events and outdoor volunteer projects — so come run a race, attend a training run, or spend a day volunteering on the trail with us.
Get involved