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Donot Stop Half Marathon (5k/10k) - Colorado Sp...
Colorado Springs, CO
Saturday, April 18th, 2026
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Great Western Trail Race
Severance, CO
All-Out Beat the Heat
Westminster, CO
DoNot Stop Half Marathon (5k/10k) - Denver
Sunday, April 19th, 2026
Horsetooth Half Marathon
Fort Collins, CO
Bigfoot Half Marathon
Estes Park, CO
Saturday, April 25th, 2026
NoCo Half Marathon & 10K
Loveland, CO
Runs With Scissors Races
Brighton, CO
Blue Heron Half & 5K
Sunday, April 26th, 2026
The Colorado Marathon
Sunday, May 3rd, 2026
Longmont Half & 5k (LM Half)
Longmont, CO
Hometown Half Marathon & 5k/10k - Colorado Springs
Saturday, May 9th, 2026
Super Mom 5K/10K/Half - Colorado Springs
Sunday, May 10th, 2026
Hometown Half Marathon & 5k/10k - Denver
Denver, CO
Girls on the Run Rockies Colfax SoleMates 2026
Sunday, May 17th, 2026
Farish Trail Race
Woodland Park, CO
Saturday, May 23rd, 2026
Steamworks Half Marathon
Durango, CO
Saturday, June 6th, 2026
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 & 12...
Windsor, CO
Saturday, June 20th, 2026
Race in the Clouds - Alma Dirt Festival 2026
Alma, CO
Thursday, June 25th, 2026
Heatwave Half Marathon - Denver
Saturday, July 11th, 2026
All-Out Dog Days
Heatwave Half Marathon - Colorado Springs
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
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
All-Out Fall Fest
Saturday, September 19th, 2026
Autumn Run
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
Rim to Rim Royal Gorge Races: 5K Road Run, Trai...
Canon City, CO
Saturday, October 3rd, 2026
Colorado Springs Marathon, Half, 5K, and Kids K
Spooky Sprint - Denver
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mi...
Sunday, October 4th, 2026
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