2017 - 2018 Colorado Half Marathon Calendar

Browse our Half Marathon Calendar for races organized in Colorado among 116 races.

116 races

Black Hawk Trail Half Marathon and 10k

July 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Golden
Half Marathon
Trail Endurance Race Series

Fort Collins Human Race

July 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Fort Collins
Half Marathon
Charity Flat Green Road Running Fast

Living Journeys Half Marathon

July 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Crested Butte
Half Marathon
Crested Butte Mountain Runners

Hunky Dory Half Marathon

August 05, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Breckenridge
Half Marathon
Trail

Winter Park Half Marathon

August 05, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Winter Park
Half Marathon
Charity

Rocky Mountain Half Marathon

August 11, 2017 Race day in 17 days
USA / Mountain Region / Colorado / Estes Park
Half Marathon
Team Mountain

Aspen Backcountry Marathon

August 12, 2017 Race day in 18 days
USA / Mountain Region / Colorado / Aspen
Half Marathon
Trail Mountain

Georgetown to Idaho Springs Half Marathon

August 12, 2017 Race day in 18 days
USA / Mountain Region / Colorado / Idaho Springs
Half Marathon
Walk Road Running

Mt. Sneffels Marathon/Half

August 12, 2017 Race day in 18 days
USA / Mountain Region / Colorado / Ouray
Half Marathon

Beaver Creek Half Marathon, 10K, 5K

August 13, 2017 Race day in 19 days
USA / Mountain Region / Colorado / Beaver Creak Park
Half Marathon
Hilly Trail Endurance Race Series

Pikes Peak Marathon

August 19, 2017 Race day in 25 days
USA / Mountain Region / Colorado / Colorado Springs
Half Marathon
Trail Mountain Snow

All-Out Runapalooza 5K, 10K & Half Marathon

August 26, 2017 Race day in about 1 month
USA / Mountain Region / Colorado / Apex Center, Arvada
Half Marathon
All-Out Multisport Productions
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