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Marathons in Colorado

Planning to run a Marathon in Colorado? Check out the full list below to see which races athletes have rated as the best marathons in Colorado. View more running races by changing filters and expanding your search area.

Pueblo Marathon

Pueblo, Colorado

February 25th, 2018

Running: Half Marathon Trail Run, Marathon

Run Through Time Marathon

Salida, Colorado

March 9th, 2019

Running: Half Marathon Trail Run, Marathon, 2 Miles

Dust Bowl Marathon Series Day 4

Lamar, Colorado

March 24th, 2019

Running: Half Marathon, Marathon

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

Westminster, Colorado

April 13th, 2019

Running: Marathon, Half Marathon, 10K, 5K, 1 Mile

Trail Running Festival - Saturday

Fruita, Colorado

April 13th, 2019

Running: Marathon Trail Run, 50K Trail Run (Ultra)

Desert RATS Trail Running Festival - Trail Marathon & 50K

Fruita, Colorado

April 14th, 2018

Running: Marathon Trail Run, 50K (Ultra)

Runs With Scissors Races

Brighton, Colorado

April 27th, 2019

Running: Half Marathon, Marathon, 50K (Ultra)

Grand Valley Marathon

Palisade, Colorado

May 5th, 2018

Running: Half Marathon, Marathon, 10K, 5K

Colorado Marathon

Fort Collins, Colorado

May 5th, 2019

Running: Marathon, Half Marathon, 10K, 5K, Relay

Colfax Marathon

Denver, Colorado

May 20th, 2018

Running: Half Marathon, Marathon, Marathon Relay, 10 Miles, 5K

NORAD Trail Race

Colorado Springs, Colorado

May 20th, 2018

Running: Half Marathon, Marathon, 4 Mile Trail Run

Vail Valor Races

Vail, Colorado

May 28th, 2018

Running: Half Marathon, Marathon, 1 Mile, 5 Miles, 5K

REVEL Rockies

Denver, Colorado

June 3rd, 2018

Running: Half Marathon, Marathon

Steamboat Marathon

Steamboat Springs, Colorado

June 3rd, 2018

Running: Half Marathon, Kids Run/Fun Run, Marathon, 10K

Mueller Marathon

Divide, Colorado

June 9th, 2018

Running: Marathon, 25K Trail Run

Runoff Runoff

Creede, Colorado

June 9th, 2018

Running: Half Marathon, Marathon, 6K

South Park Trail Marathon

Fairplay, Colorado

June 9th, 2018

Running: Half Marathon, Marathon

Leadville Trail Marathon & Heavy Half Marathon

Leadville, Colorado

June 16th, 2018

Running: Marathon, 15.4 Mile Trail Run

Estes Park Marathon

Estes Park, Colorado

June 17th, 2018

Running: Half Marathon, Marathhon Relay, Marathon, 10K

Slacker Half Marathon

Georgetown, Colorado

June 23rd, 2018

Running: Half Marathon Relay, Marathon, 4 Miles
 

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