2014 - 2015 Colorado Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado among 311 races.

311 races

Autumn Color 10K Run

  • North America | USA | Mountain Region | Colorado | Buena Vista
  • 10k race
  • September 20, 2014 - 07:00

Autumn Color 5K Run

  • North America | USA | Mountain Region | Colorado | Buena Vista
  • Shorter than 10 km race - 5 kilometers
  • September 20, 2014 - 07:00

Autumn Color Run Half Marathon

  • North America | USA | Mountain Region | Colorado | Buena Vista
  • Half Marathon
  • September 20, 2014 - 07:00

Camp 4 Coffee Cart to Cart Trail 19 Mile

  • North America | USA | Colorado | Crested Butte
  • Half Marathon to Full Marathon - 19 miles
  • September 20, 2014 - 08:00
  • Trail Crested Butte Mountain Runners

Camp 4 Coffee Cart to Cart Trail Half Marathon

  • North America | USA | Colorado | Crested Butte
  • Half Marathon
  • September 20, 2014 - 08:00
  • Trail Crested Butte Mountain Runners

Prairie Dog 10K - Westminster

  • North America | USA | Mountain Region | Colorado | Westminster
  • 10k race
  • September 20, 2014 - 08:30
  • Charity Road Running

Prairie Dog Half Marathon - Westminster

  • North America | USA | Mountain Region | Colorado | Westminster
  • Half Marathon
  • September 20, 2014 - 08:00
  • Charity Road Running

Lisa Nelson’s Mustang Stampede 5K Memorial Scholarship Run/Walk

  • North America | USA | Colorado | Arvada
  • Shorter than 10 km race - 5 kilometers
  • September 27, 2014 - 09:00
  • Walk Charity

Vasque Golden Leaf Half Marathon

  • North America | USA | Mountain Region | Colorado | Aspen
  • Half Marathon
  • September 27, 2014 - 08:30
  • Hilly Trail

Baby Bear 10k

  • North America | USA | Mountain Region | Colorado | Lakewook
  • 10k race
  • September 28, 2014 - 07:30
  • Fast Trail

Colorado Springs 5K Presented by: Penrose-St. Francis

  • North America | USA | Colorado | Colorado Springs
  • Shorter than 10 km race - 5 kilometers
  • September 28, 2014 - 08:00 Inaugural race
  • Road Running Spree Racing

Colorado Springs Half Marathon Presented by: Penrose-St. Francis

  • North America | USA | Colorado | Colorado Springs
  • Half Marathon
  • September 28, 2014 - 07:30 Inaugural race
  • Road Running Spree Racing

Snow Mtn Ranch Trail 10K

  • North America | USA | Mountain Region | Colorado | Granby
  • 10k race
  • September 28, 2014 - 09:00
  • Trail

Snow Mtn Ranch Trail 5K

  • North America | USA | Mountain Region | Colorado | Granby
  • Shorter than 10 km race - 5 kilometers
  • September 28, 2014 - 09:00
  • Trail

Snow Mtn Ranch Trail Half Marathon

  • North America | USA | Mountain Region | Colorado | Granby
  • Half Marathon
  • September 28, 2014 - 09:00
  • Trail