© 2026 Find The Run. All rights reserved.
Any Length
Any Month
Trail
Fast
BQ
Steamworks Half Marathon
Durango, CO
Saturday, June 6th, 2026
Want to feature your race?
Don't see your race?
The Steamboat Marathon
Steamboat Springs, CO
Sunday, June 7th, 2026
Colorado 13er (Half Marathon/10k/5k)
Louisville, CO
All-Out Summer Breeze
Arvada, CO
Saturday, June 13th, 2026
Red, White and Brew 5k, 10k & Half Marathon
Windsor, CO
Saturday, June 20th, 2026
Race in the Clouds - Alma Dirt Festival 2026
Alma, CO
Thursday, June 25th, 2026
The Sunlight Showdown
Glenwood Springs, CO
Saturday, June 27th, 2026
Heatwave Half Marathon - Denver
Denver, CO
Saturday, July 11th, 2026
All-Out Dog Days
Westminster, CO
Littleton, CO
Heatwave Half Marathon - Colorado Springs
Colorado Springs, CO
Sunday, July 12th, 2026
Summer Splash Prairie Dog Half, 10k, & 5k
Castle Rock, CO
Saturday, July 18th, 2026
Aspen Valley Marathon
Aspen, CO
Saturday, July 25th, 2026
Popsicle 5K/10K/Half - Colorado Springs
Saturday, August 1st, 2026
Bound for Boston Marathon & Half Marathon - Denver
Sunday, August 2nd, 2026
Choice City Running Festival
Fort Collins, CO
Friday, August 7th, 2026
All-Out Runapalooza
Saturday, August 8th, 2026
Erie Half & 5k
Erie, CO
Sunday, August 16th, 2026
Staunton Rocks! Marathon and Half Marathon
Pine, CO
Saturday, August 22nd, 2026
Byers Peak Stampede Half Marathon & 5K Run
Fraser, CO
Pioneer Prairie Dog Half, 10k & 5k
Sunday, August 23rd, 2026
TBK Bank Thirsty 13 Half Marathon
Saturday, August 29th, 2026
Golden Harvest Half Marathon & 5k/10k - Denver
Saturday, September 5th, 2026
Golden Harvest Half Marathon & 5k/10k - Colorad...
Sunday, September 6th, 2026
Labor Day Half Marathon
Parker, CO
Monday, September 7th, 2026
Black Squirrel Half Marathon
Bellvue, CO
Saturday, September 12th, 2026
Trail Sisters Women's Half Marathon & 10k
Buena Vista, CO
Autumn Run
Saturday, September 19th, 2026
All-Out Fall Fest
Beulah Challenge and OverIt Series
Beulah, CO
Fall Equinox
Sunday, September 20th, 2026
Red Feather Trail Jamboree
Red Feather Lakes, CO
Friday, September 25th, 2026
WILD Wahatoya Runs
La Veta, CO
Saturday, September 26th, 2026
Running for Children's Rights to Both Parents -...
Boulder, CO
Sunday, September 27th, 2026
Rim to Rim Royal Gorge Races: 5K Road Run, Trai...
Canon City, CO
Saturday, October 3rd, 2026
Spooky Sprint - Denver
Colorado Springs Marathon, Half, 5K, and Kids K
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mi...
Sunday, October 4th, 2026
The Long View Marathon
Saturday, October 10th, 2026
Breckenridge RunFest
Breckenridge, CO
Westy Half & 5k
Sunday, October 11th, 2026
Durango Marathon
Rim Rock Marathon & Half Marathon
Fruita, CO
Sunday, November 1st, 2026
All-Out Kooky-Spooky
Golden, CO
Turkey Trails- Denver
Saturday, November 7th, 2026
Lakewood, CO
HRCA Backcountry Wilderness Half Marathon
Lone Tree, CO
Turkey Trails - Colorado Springs
Sunday, November 8th, 2026
Explore more in Colorado, US
Distances:
Months:
Tags:
