2017 - 2018 Colorado Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado among 634 races.

634 races

C.U.R.E Ultra's

100K
April 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Chatfield State Park, Littleton
Ultramarathon - 100 kilometers
Trail

C.U.R.E Ultra's

20K
April 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Chatfield State Park, Littleton
10 km race to Half Marathon - 20 kilometers
Trail

C.U.R.E Ultra's

50K
April 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Chatfield State Park, Littleton
Ultramarathon - 50 kilometers
Trail

C.U.R.E Ultra's

50 Mile
April 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Chatfield State Park, Littleton
Ultramarathon - 50 miles
Trail

Rocky Top Middle School 5k

April 29, 2017 Race day in 4 days
USA / Mountain Region / Colorado / Thornton
5k race - 5 kilometers

Cherry Creek Sneak

Cherry Creek Sneak 10 Miler
April 30, 2017 Race day in 5 days
USA / Mountain Region / Colorado / Cherry Creek, Denver
10 km race to Half Marathon - 10 miles
Charity

Cherry Creek Sneak

Cherry Creek Sneak 5K
April 30, 2017 Race day in 5 days
USA / Mountain Region / Colorado / Cherry Creek, Denver
5k race - 5 kilometers
Charity

Cherry Creek Sneak

Cherry Creek Sneak 5 Miler
April 30, 2017 Race day in 5 days
USA / Mountain Region / Colorado / Cherry Creek, Denver
Shorter than 10 km race - 5 miles
Charity

Wolfpack Ninja Tour - Obstacle Course Race Alongside Star-Studded Ninjas

April 30, 2017 Race day in 5 days
USA / Mountain Region / Colorado / Denver
X-hour race - 2 hours
Obstacle race Fun Fund raising Kids

Wolfpack Ninja Tour - Obstacle Course Race With Star-Studded PRO Ninjas

April 30, 2017 Race day in 5 days
USA / Mountain Region / Colorado / Denver
Shorter than 10 km race - 2 hours
Obstacle race Fun Fund raising Kids

Hope House Derby Dash 5K & Fun Run

May 06, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Arvada
5k race - 5 kilometers
Walk

Adams 12 Five Star 5k for Wellness

Five Star 5K Run (Chip Timed)
May 06, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Brighton
5k race - 5 kilometers

Adams 12 Five Star 5k for Wellness

Five Star 5K Run/Walk (Untimed)
May 06, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Brighton
5k race - 5 kilometers
Walk

Adams 12 Five Star 5k for Wellness

Five Star Kids Fun Run (1 Mile)
May 06, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Brighton
Shorter than 10 km race - 1 miles

Greenland Trail 50k

Greenland Trail 25k
May 06, 2017 Race day in 11 days
USA / Mountain Region / Colorado / Larkspur
Half Marathon to Full Marathon - 25 kilometers
Trail