2017 - 2018 Colorado Marathon Calendar

Browse our Marathon Calendar for races organized in Colorado among 35 races.

35 races

Dust Bowl Marathon Series Day 4

March 31, 2018 Race day in 4 months
USA / Mountain Region / Colorado / Lamar
Marathon
Dust Bowl Series

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

April 14, 2018 Race day in 5 months
USA / Mountain Region / Colorado / Westminster
Marathon
All-Out Multisport Productions

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

April 14, 2018 Race day in 5 months
USA / Mountain Region / Colorado / Fruita
Marathon
Desert Trail Hilly

Kaiser Permanente Colfax Marathon

May 20, 2018 Race day in 6 months
USA / Mountain Region / Colorado / Denver
Marathon
Boston Qualifier Charity Fun Road Running Fund raising Relay Wheelchair

REVEL Rockies Marathon & Half Marathon

June 03, 2018 Race day in 6 months
USA / Mountain Region / Colorado / Denver
Marathon
Charity Road Running REVEL Race Series Fast Boston Qualifier

Steamboat Marathon, Half Marathon and 10K

June 03, 2018 Race day in 6 months
USA / Mountain Region / Colorado / Steamboat Springs
Marathon
Charity Road Running Steamboat Springs Running Series Boston Qualifier Hilly Wheelchair

All-Out Fallfest 1M, 5K,10K, Half & Full Marathon

September 22, 2018 Race day in 10 months
USA / Mountain Region / Colorado / Westminster
Marathon
Road Running

Mountain RATS

September 22, 2018 Race day in 10 months
USA / Mountain Region / Colorado / Eagle
Marathon
Trail Mountain

Colorado Springs Marathon

September 29, 2018 Race day in 10 months
USA / Mountain Region / Colorado / Colorado Springs
Marathon
Road Running

American Heroes Run

September 10, 2016 The race has already taken place.
USA / Mountain Region / Colorado / Longmont
Marathon
Flat Trail

Loveland Marathon

No race in 2017
USA / Mountain Region / Colorado / Estes Park
Marathon
Road Running Boston Qualifier

Golden Monster Marathon

November 05, 2016 The race has already taken place.
USA / Mountain Region / Colorado / Golden
Marathon
Trail Mountain
Refine by