Clear All
Half Marathons Near Colorado
Showing the next 50 runs that match your filters
Featured
Rocky Mountain Half Marathon and 5K
Get $10 Off - Use Code VRRUNGUIDES
Date: Jul 31-Aug 1, 2026 - Friday to Saturday
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
Featured
Durango Marathon
Destination Race!
Date: Oct 11, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Durango, Colorado
Colfax Marathon
Date: May 16-17, 2026 - Saturday to Sunday
Size: 10,000+ participants
Location: Denver, Colorado
Endure 12 Hour, 24 Hour, and Half Marathon
Date: May 16, 2026 - Saturday
Size: 100 - 500 participants
Location: Teller County, Colorado
Memorial Day Run 5K/10K/13.1 - Denver/Aurora
Date: May 23, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Are you organizing a running event?
Spirit Trail Run
Date: May 24, 2026 - Sunday
Size: 100 - 500 participants
Location: Buena Vista, Colorado
Stars, Stripes & Steps
Get $3.00 Off - Use Code RUNGUIDES
Date: May 25, 2026 - Monday
Size: 1 - 100 participants
Location: Hot Springs, South Dakota
Colorado Springs Spartan Weekend
Date: May 30-31, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Colorado Springs, Colorado
Deadwood-Mickelson Trail Marathon
Date: Jun 6-7, 2026 - Saturday to Sunday
Size: 1,000 - 5,000 participants
Location: Deadwood, South Dakota
Basalt Half Marathon
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: Basalt, Colorado
Steamworks Half Marathon
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: Durango, Colorado
Run for Breast Cancer 5K/10K/13.1 - Denver/Aurora
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Roadrunner Race for the Arts
Date: Jun 6, 2026 - Saturday
Size: 100 - 500 participants
Location: Santa Rosa, New Mexico
Colorado 13er, 10k and 5k
Date: Jun 7, 2026 - Sunday
Size: 100 - 500 participants
Location: Louisville, Colorado
Steamboat Marathon
Date: Jun 7, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Steamboat Springs, Colorado
Casper Marathon
Date: Jun 7, 2026 - Sunday
Size: 100 - 500 participants
Location: Casper, Wyoming
All-Out Summer Breeze
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: Arvada, Colorado
Barr Lake Trail Race
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: Commerce City, Colorado
Estes Park Marathon
Date: Jun 20-21, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
Run Devils Tower
Date: Jun 20-21, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Devils Tower, Wyoming
Run Juneteenth Day 5K/10K/13.1 - Denver/Aurora
Date: Jun 20, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Slacker Half Marathon, Relay & 4 Mile Races
Date: Jun 27, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Georgetown, Colorado
Leadville Trail Marathon & Heavy Half
Date: Jun 27, 2026 - Saturday
Size: 1,000 - 5,000 participants
Location: Leadville, Colorado
July 4th ROCK-IT RUN 5k, Half Marathon & Relay
Date: Jul 4, 2026 - Saturday
Size: 100 - 500 participants
Location: Castle Rock, Colorado
July 4th Run 5K/10K/13.1 - Denver/Aurora
Date: Jul 4, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
All-Out Dog Days
Date: Jul 11, 2026 - Saturday
Size: 100 - 500 participants
Location: Westminster, Colorado
All-Out Beat the Heat
Date: Jul 11, 2026 - Saturday
Size: 100 - 500 participants
Location: Westminster, Colorado
Spearfish Canyon Half Marathon & 5K
Date: Jul 11, 2026 - Saturday
Size: 100 - 500 participants
Location: Winterville, South Dakota
Heatwave Half Marathon - Denver
Date: Jul 11, 2026 - Saturday
Size: 100 - 500 participants
Location: Denver, Colorado
Heatwave Half Marathon - Colorado Springs
Date: Jul 12, 2026 - Sunday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Summer Splash Prairie Dog Half Marathon, 10k & 5k
Date: Jul 18, 2026 - Saturday
Size: 100 - 500 participants
Location: Castle Rock, Colorado
Aspen Valley Marathon
Date: Jul 25, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Aspen, Colorado
Run for Coffee Lovers 5K/10K/13.1 - Denver/Aurora
Date: Jul 25, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Rocky Mountain Half Marathon and 5K
Get $10 Off - Use Code VRRUNGUIDES
Date: Jul 31-Aug 1, 2026 - Friday to Saturday
Size: 500 - 1,000 participants
Location: Estes Park, Colorado
Sheep Mountain Ultras
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Fairplay, Colorado
Aspen Backcountry
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Aspen, Colorado
Popsicle 5K/10K/Half - Colorado Springs
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Bound for Boston Marathon & Half Marathon - Denver
Date: Aug 2, 2026 - Sunday
Size: 1 - 100 participants
Location: Denver, Colorado
All-Out Runapalooza
Date: Aug 8, 2026 - Saturday
Size: 100 - 500 participants
Location: Arvada, Colorado
Georgetown to Idaho Springs Half Marathon
Date: Aug 8, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Georgetown, Colorado
Rio Grande Half Marathon
Date: Aug 9, 2026 - Sunday
Size: 500 - 1,000 participants
Location: Albuquerque, New Mexico
Westminster Night Trail
Date: Aug 15, 2026 - Saturday
Size: 100 - 500 participants
Location: Westminster, Colorado
Mt. Sneffels Half Marathon, 10K & Kids Fun Run
Date: Aug 15, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Ridgway, Colorado
Boulder Rez Marathon
Date: Aug 15, 2026 - Saturday
Size: 100 - 500 participants
Location: Boulder, Colorado
Med Bow Rail Marathon and Half Marathon
Date: Aug 15, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Laramie, Wyoming
Run With The Horses Marathon
Date: Aug 15, 2026 - Saturday
Size: 100 - 500 participants
Location: Green River, Wyoming
Run for PB&J 5K/10K/13.1 - Denver/Aurora
Date: Aug 15, 2026 - Saturday
Size: 100 - 500 participants
Location: Centennial, Colorado
Erie Half & 5k
Date: Aug 16, 2026 - Sunday
Size: 100 - 500 participants
Location: Erie, Colorado
Leading Ladies & Dakota Spirit Marathon, Half Marathon, Relay & 10K
Date: Aug 22-23, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Spearfish, South Dakota
Staunton Rocks! Trail Marathon & Half
Date: Aug 22, 2026 - Saturday
Size: 100 - 500 participants
Location: Jefferson County, Colorado
Byers Peak Stampede
Date: Aug 22, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Grand County, Colorado
Arrowhead Half Marathon & 5K
Date: Aug 22, 2026 - Saturday
Size: 100 - 500 participants
Location: Edwards, Colorado
