2015 - 2016 Colorado Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado among 520 races.

520 races

  • 1
  • 35

Ragnar Relay Colorado

  • 2015-08-07
  • USA | Colorado | Aspen
  • Ultramarathon - 200 miles
  • Relay Mountain Ragnar Relay Series

Holy COW Trail Stampede

10k
  • 2015-08-08
  • USA | Colorado | Westminster
  • 10k race - 10 kilometers
  • Trail

1st Ntnl Bank of Durango Muck and Mire on the Mountain

1st National Bank of Durango- Muck and Mire on the Mountain 10K
  • 2015-08-08
  • USA | Colorado | Durango
  • 10k race - 10 kilometers
  • Trail

1st Ntnl Bank of Durango Muck and Mire on the Mountain

1st National Bank of Durango- Muck and Mire on the Mountain 5K
  • 2015-08-08
  • USA | Colorado | Durango
  • Shorter than 10 km race - 5 kilometers
  • Trail

1st Ntnl Bank of Durango Muck and Mire on the Mountain

1st National Bank of Durango- Muck and Mire on the Mountain Kid's 1 Mile Fun Run
  • 2015-08-08
  • USA | Colorado | Durango
  • Shorter than 10 km race - 1 miles
  • Trail

Holy COW Trail Stampede

5k
  • 2015-08-08
  • USA | Colorado | Westminster
  • Shorter than 10 km race - 5 kilometers
  • Trail

Georgetown to Idaho Springs Half Marathon

  • 2015-08-08
  • USA | Colorado | Idaho Springs
  • Half Marathon
  • Walk Road Running

Mt. Sneffels Marathon/Half

Mt. Sneffels Half Marathon
  • 2015-08-08
  • USA | Colorado | Ouray
  • Half Marathon

Mt. Sneffels Marathon/Half

Mt. Sneffels Marathon
  • 2015-08-08
  • USA | Colorado | Ouray
  • Marathon

Rambling Rose 5K Run/Walk

Rambling Rose 5K Run/Walk
  • 2015-08-08
  • USA | Colorado | Milliken
  • Shorter than 10 km race - 5 kilometers
  • Walk

Silverheels 100 Mile Endurance Run

  • 2015-08-08
  • USA | Colorado | Fairplay
  • Ultramarathon - 102 miles
  • Trail Mountain

Telluride Mountain Run

Telluride Mountain Hill Climb
  • 2015-08-08
  • USA | Colorado | Telluride
  • 10 km race to Half Marathon - 10 miles

Telluride Mountain Run

Telluride Mountain Run
  • 2015-08-08
  • USA | Colorado | Telluride
  • Ultramarathon - 38 miles

Rambling Rose 5K Run/Walk

Tot Trot free kids' run
  • 2015-08-08
  • USA | Colorado | Milliken
  • Shorter than 10 km race - 0.45 miles

Beaver Creek Half Marathon and 10K

Beaver Creek 10K
  • 2015-08-09
  • USA | Colorado | Beaver Creak Park
  • 10k race
  • Hilly Trail Endurance Race Series
  • 1
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