2017 - 2018 Colorado Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado among 632 races.

632 races

Equinox Spring Half Marathon & 4 Mile

4 Mile
March 26, 2017 Race day in 1 day
USA / Mountain Region / Colorado / Fort Collins
Shorter than 10 km race - 4 miles
Road Running

Equinox Spring Half Marathon & 4 Mile

Half Marathon
March 26, 2017 Race day in 1 day
USA / Mountain Region / Colorado / Fort Collins
Half Marathon
Road Running

Six Pack Series Winter Westminster 5k and 10k

10k
April 01, 2017 Race day in 7 days
USA / Mountain Region / Colorado / Westminster
10k race - 10 kilometers

Six Pack Series Winter Westminster 5k and 10k

5k
April 01, 2017 Race day in 7 days
USA / Mountain Region / Colorado / Westminster
5k race - 5 kilometers

Hope Happens Here Denver Brain Tumor 5k

April 01, 2017 Race day in 7 days
USA / Mountain Region / Colorado / Denver
5k race - 5 kilometers

Tortoise And Hare

April 08, 2017 Race day in 14 days
USA / Mountain Region / Colorado / Colorado Springs
5k race - 5 kilometers

Platte River Half Marathon & Buckhorn Excahnge Relay

April 09, 2017 To be confirmed Race day in 15 days
USA / Mountain Region / Colorado / Littleton
Half Marathon
Road Running

Prairie Dog Half Marathon and 10K - Arvada

Prairie Dog 10K - Arvada
April 09, 2017 Race day in 15 days
USA / Mountain Region / Colorado / Arvada
10k race
Charity Road Running

Prairie Dog Half Marathon and 10K - Arvada

Prairie Dog 5K - Arvada
April 09, 2017 Race day in 15 days
USA / Mountain Region / Colorado / Arvada
5k race - 5 kilometers
Charity Road Running

Prairie Dog Half Marathon and 10K - Arvada

Prairie Dog Half Marathon - Arvada
April 09, 2017 Race day in 15 days
USA / Mountain Region / Colorado / Arvada
Half Marathon
Charity Road Running

Desert R.A.T.S. Trail Running Festival

50K
April 15, 2017 Race day in 21 days
USA / Mountain Region / Colorado / Fruita
Ultramarathon - 50 kilometers
Hilly Desert Trail

All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Full Marathon

All-Out Beat the Heat 10K
April 15, 2017 Race day in 21 days
USA / Mountain Region / Colorado / Westminster
10k race - 10 kilometers
All-Out Multisport Productions

All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Full Marathon

All-Out Beat the Heat 1M
April 15, 2017 Race day in 21 days
USA / Mountain Region / Colorado / Westminster
Shorter than 10 km race - 1 miles
All-Out Multisport Productions

All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Full Marathon

All-Out Beat the Heat 5K
April 15, 2017 Race day in 21 days
USA / Mountain Region / Colorado / Westminster
5k race - 5 kilometers
All-Out Multisport Productions

All-Out Beat the Heat 1M, 5K, 10K, Half Marathon & Full Marathon

All-Out Beat the Heat Half Marathon
April 15, 2017 Race day in 21 days
USA / Mountain Region / Colorado / Westminster
Half Marathon
All-Out Multisport Productions