Win a place at the Inaugural Scottish Half Marathon

2014 - 2015 Colorado Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado among 312 races.

312 races

Mountain Ultra

  • North America | USA | Mountain Region | Colorado | Aspen
  • Ultramarathon - 220 kilometers
  • August 01, 2014 - 00:00
  • Hilly Trail Beyond the Ultimate Mountain Extreme

Wild West Relay

  • North America | USA | Mountain Region | Colorado | Fort Collins
  • Ultramarathon - 200 miles
  • August 01, 2014
  • Road Running RLT Relay Races Relay

Hunky Dory Half Marathon

  • North America | USA | Colorado | Breckenridge
  • Half Marathon
  • August 02, 2014 - 08:30
  • Trail

Ouray 100 Mile Endurance Run

  • North America | USA | Colorado | Ouray
  • Ultramarathon - 100 miles
  • August 02, 2014 - 04:00
  • Trail Mountain Ever Run Racing

The Rocky Mountain Half Marathon

  • North America | USA | Mountain Region | Colorado | Estes Park
  • Half Marathon
  • August 02, 2014 - 06:00
  • Team Mountain

Drenched Denver

  • North America | USA | Mountain Region | Colorado | Denver
  • Shorter than 10 km race - 5 kilometers
  • August 03, 2014 - 10:00
  • Fun Run Drenched

Ragnar Relay Colorado

  • North America | USA | Mountain Region | Colorado | Aspen
  • Ultramarathon - 200 miles
  • August 08, 2014
  • Relay Mountain Ragnar Relay Series

Georgetown to Idaho Springs Half Marathon

  • North America | USA | Mountain Region | Colorado | Idaho Springs
  • Half Marathon
  • August 09, 2014 - 08:00
  • Walk Road Running

Mt. Sneffels Half Marathon

  • North America | USA | Mountain Region | Colorado | Ouray
  • Half Marathon
  • August 09, 2014 - 07:30

Mt. Sneffels Marathon

  • North America | USA | Mountain Region | Colorado | Ouray
  • Marathon
  • August 09, 2014 - 06:30

Telluride Mountain Hill Climb

  • North America | USA | Colorado | Telluride
  • 10 km race to Half Marathon - 10 miles
  • August 09, 2014

Telluride Mountain Run

  • North America | USA | Colorado | Telluride
  • Ultramarathon - 38 miles
  • August 09, 2014

Beaver Creek 10K

  • North America | USA | Mountain Region | Colorado | Beaver Creak Park
  • 10k race
  • August 10, 2014 - 09:00
  • Hilly Trail

Beaver Creek 5K

  • North America | USA | Mountain Region | Colorado | Beaver Creak Park
  • Shorter than 10 km race - 5 kilometers
  • August 10, 2014 - 09:00
  • Hilly Trail

Beaver Creek Half Marathon

  • North America | USA | Mountain Region | Colorado | Beaver Creak Park
  • Half Marathon
  • August 10, 2014 - 09:00
  • Hilly Trail