2015 - 2016 Colorado Race Calendar

Browse our Marathons, Half Marathons, Ultra marathons, Multiday events organized in Colorado among 486 races.

486 races

Neighborhood Fun Run Westminster Endurance House

  • May 30, 2015 - 09:00
  • North America | USA | Mountain Region | Colorado | Westminster
  • Shorter than 10 km race - 5 kilometers
  • Charity

Blazing Bullets Trail Run

BBTR 10K Run
  • May 30, 2015 - 08:00
  • North America | USA | Mountain Region | Colorado | Westminster
  • 10k race - 10 kilometers
  • Trail

Blazing Bullets Trail Run

BBTR 5K Run/Walk
  • May 30, 2015 - 08:00
  • North America | USA | Mountain Region | Colorado | Westminster
  • Shorter than 10 km race - 5 kilometers
  • Walk Trail

Castle Rock Half Marathon

Castle Rock 5 Mile
  • May 30, 2015
  • North America | USA | Mountain Region | Colorado | Castle Rock
  • Shorter than 10 km race - 5 miles

Castle Rock Half Marathon

Castle Rock Half Marathon
  • May 30, 2015
  • North America | USA | Mountain Region | Colorado | Castle Rock
  • Half Marathon

Turquoise Lake Half Marathon

  • May 30, 2015 - 09:00
  • North America | USA | Mountain Region | Colorado | Leadville
  • Half Marathon
  • Hilly Trail

Ultimate Direction Dirty 30 Trail Run

Ultimate Direction Dirty 12mi Trail Run
  • May 30, 2015 - 10:00
  • North America | USA | Mountain Region | Colorado | Golden Gate Canyon SP, Black Hawk
  • 10 km race to Half Marathon - 12 miles
  • Trail

Ultimate Direction Dirty 30 Trail Run

Ultimate Direction Dirty 50K Trail Run
  • May 30, 2015 - 07:00
  • North America | USA | Mountain Region | Colorado | Golden Gate Canyon SP, Black Hawk
  • Ultramarathon - 50 kilometers
  • Trail

GoPro Mountain Games Vail

  • June 06, 2015 - 08:00
  • North America | USA | Mountain Region | Colorado | Vail
  • Half Marathon

Run The Rockies

Run The Rockies 10K
  • June 06, 2015 - 07:30
  • North America | USA | Mountain Region | Colorado | Frisco
  • 10k race
  • Mountain

Run The Rockies

Run The Rockies Half Marathon
  • June 06, 2015 - 08:00
  • North America | USA | Mountain Region | Colorado | Frisco
  • Half Marathon
  • Mountain

Taste of Louisville Half Marathon & 5K

Taste of Louisville 5K
  • June 06, 2015 - 08:15
  • North America | USA | Mountain Region | Colorado | Louisville
  • Shorter than 10 km race - 5 kilometers

Taste of Louisville Half Marathon & 5K

Taste of Louisville Half Marathon
  • June 06, 2015 - 08:00
  • North America | USA | Mountain Region | Colorado | Louisville
  • 10 km race to Half Marathon - 12 kilometers

Run Into the Wild Running Festival

Walk, Run or Ride Into The Wild!
  • June 06, 2015 - 08:00
  • North America | USA | Mountain Region | Colorado | Wild Animal Sanctuary, Keenesburg
  • Shorter than 10 km race - 5 kilometers
  • Walk Charity

Boulder Rez Half Marathon

10K
  • June 07, 2015 - 07:05
  • North America | USA | Mountain Region | Colorado | Boulder Reservoir, Boulder
  • 10k race
  • Flat