Aspen

Vasque Golden Leaf Half Marathon


Aurora

Colorado Colfax Marathon & Half Marathon


Basalt

Basalt Half Marathon


Buena Vista

Autumn Color Runs


Boulder

Boulder Marathon, Half Marathon & Relay

Indian Summer Half Marathon


Breckenridge

Breck Crest Mountain Marathon & Half Marathon


Colorado Springs

American Discovery Trail Marathon & Half Marathon

Pikes Peak Ascent Half Marathon


Copper Mountain

US Half Marathon - Copper Mountain


Denver

Rocky Mountain Half Marathon

Denver Marathon, Half Marathon & Relay

ZOOMA Denver Half Marathon & 5-Miler


Durango

Steamworks Animas Valley Half Marathon


Estes Park

Estes Park Marathon & Half Marathon, 10K & 5K


Fort Collins

Blue Sky Marathon & Half Marathon

Colorado Marathon, Half Marathon, 5K & 10K

Crossroads Half Marathon & 5K

Horsetooth Half Marathon


Frisco

Run The Rockies Half Marathon


Gateway

4th of July Half Marathon & 5K

The Better 1/2 Half Marathon & 5-Mile Run


Georgetown

Georgetown to Idaho Springs Half Marathon

Slacker Half Marathon


Glenwood Springs

Glenwood Canyon Shuffle Race for Literacy


Highlands Ranch

Wildcat Mountain Half Marathon


Leadville

Turquoise Lake Half Marathon


Littleton

Platte River Half Marathon & Buckhorn Exchange Relay


Loveland

Heart Center of the Rockies Half Marathon, 10K & 5K


Pagosa Springs

Devil Mountain 50K, Half Marathon & Kids Race

Turkey Track Trail Marathon & Half Marathon


Pueblo

Rock Canyon Half Marathon


Ridgway

Mount Sneffels Half Marathon


Salida

Run Through Time Marathon, Half Marathon & 2-Mile Run


Steamboat Springs

Mountain Madness Half Marathon

Steamboat Marathon, Half Marathon & 10K Run/Walk


Vail

La Sportiva Vail Half Marathon

Teva Mountain Games Vail Pass Half Marathon



View half marathon races across the state by city above, or view our Colorado half marathon calendar to find races by date in 2009.