2017 - 2018 Colorado Marathon Calendar

Browse our Marathon Calendar for races organized in Colorado among 39 races.

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39 races

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

All-Out Beat the Heat Marathon
April 15, 2017 Race day in 17 days
USA / Mountain Region / Colorado / Westminster
Marathon
All-Out Multisport Productions

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

Marathon
April 15, 2017 Race day in 17 days
USA / Mountain Region / Colorado / Fruita
Marathon
Hilly Desert Trail

Colorado Marathon

Access Health Colorado Marathon
May 07, 2017 Race day in about 1 month
USA / Mountain Region / Colorado / Fort Collins
Marathon
Boston Qualifier Road Running

Kaiser Permanente Colfax Marathon

Colfax Marathon 26.2
May 21, 2017 Race day in about 2 months
USA / Mountain Region / Colorado / Denver
Marathon
Boston Qualifier Charity Fun Road Running Fund raising Relay Wheelchair

Steamboat Marathon, Half Marathon and 10K

Steamboat Marathon
June 04, 2017 Race day in 2 months
USA / Mountain Region / Colorado / Steamboat Springs
Marathon
Boston Qualifier Hilly Charity Road Running Steamboat Springs Running Series Wheelchair

Runoff Runoff!

Marathon
June 10, 2017 Race day in 2 months
USA / Mountain Region / Colorado / Creede
Marathon
Road Running

REVEL Rockies Marathon & Half Marathon

REVEL Rockies Marathon
June 11, 2017 Race day in 2 months
USA / Mountain Region / Colorado / Denver
Marathon
Boston Qualifier Charity Road Running REVEL Race Series Fast

Leadville Trail Marathon

Leadville Trail Marathon
June 17, 2017 Race day in 3 months
USA / Mountain Region / Colorado / Leadville
Marathon
Trail Leadville Race Series

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

Estes Park Marathon
June 18, 2017 Race day in 3 months
USA / Mountain Region / Colorado / Estes Park
Marathon
Road Running

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

Estes Park Marathon Team Relay
June 18, 2017 Race day in 3 months
USA / Mountain Region / Colorado / Estes Park
Marathon
Walk Road Running Relay

Aspen Valley Marathon

Aspen Valley Marathon
July 15, 2017 Race day in 4 months
USA / Mountain Region / Colorado / Aspen
Marathon
Boston Qualifier Charity Road Running Fast

Aspen Backcountry Marathon

Marathon
August 12, 2017 Race day in 5 months
USA / Mountain Region / Colorado / Aspen
Marathon
Hilly Trail Mountain

Mt. Sneffels Marathon/Half

Mt. Sneffels Marathon
August 12, 2017 Race day in 5 months
USA / Mountain Region / Colorado / Ouray
Marathon

Silverton Alpine Marathon

Silverton Alpine Marathon
August 19, 2017 Race day in 5 months
USA / Mountain Region / Colorado / Silverton
Marathon
Trail Aravaipa Running Mountain

Pikes Peak Marathon

Pikes Peak Marathon
August 20, 2017 Race day in 5 months
USA / Mountain Region / Colorado / Colorado Springs
Marathon
Trail Mountain