Any Length
Any Month
Trail
Fast
BQ
Rocky Mountain Half Marathon & 5K
Estes Park, CO
Friday, August 1st, 2025
Valley 5000
Loveland, CO
Saturday, August 2nd, 2025
Eltuck Valley 5k
Bellvue, CO
Tuesday, August 5th, 2025
Choice City Running Festival
Fort Collins, CO
Friday, August 8th, 2025
Sunrise Stampede
Longmont, CO
Saturday, August 9th, 2025
Severance Glow 5K Run or Walk
Severance, CO
Erie Half & 5k
Erie, CO
Sunday, August 17th, 2025
Into the Hills Eltuck 5k
Tuesday, August 19th, 2025
Coyote Chase 5k
Louisville, CO
Saturday, August 23rd, 2025
Calarat Challenge Trail Running Festival
Jamestown, CO
Saturday, August 30th, 2025
Muddy Dash | Denver
Saturday, September 13th, 2025
13th Annual Superhero Event
Greeley, CO
Saturday, September 20th, 2025
Rising Phoenix Festival & 5K
Saturday, September 27th, 2025
Runway 5K - Run for the Angels
Broomfield, CO
Flyin' Ryan Memorial 5k
Friday, October 3rd, 2025
PRA Miner Gold Rush
Saturday, October 4th, 2025
Layafette Music Fest Half-Marathon/10K/5K
Sunday, October 5th, 2025
Windsor Marathon, Half Marathon, 10k & 5k
Windsor, CO
The Long View Marathon
Saturday, October 11th, 2025
Boulder XC Series Meet 1
Boulder, CO
Gummball 5K
Brighton, CO
Joy & Justice 5k
Timnath, CO
Sunday, October 12th, 2025
Homecoming 5k - Colorado State University
Saturday, October 18th, 2025
Colleen De Reuck XC Classic
Saturday, November 1st, 2025
Girls on the Run Northern Colorado Fall 5K
Sunday, November 2nd, 2025
NCMC Turkey Trot
Thursday, November 27th, 2025
2025 Loveland Turkey Trot
Pelican Lakes Turkey Trot
Broomfield Turkey Day 5K/10K
Alpine Bank Boulder Thanksgiving Day 5K
AdventHealth Avista Louisville Turkey Trot
Santa Catch 5k & 10k
Saturday, December 13th, 2025
Resolution Run 5K
Wednesday, December 31st, 2025
Arctic Prairie Dog Half, 10k & 5k
Sunday, January 18th, 2026
Sharin' O' The Green 5k
Saturday, March 14th, 2026
Lucky Brew Race 5K, 10K, and 15K
Saturday, March 21st, 2026
Run the Ranch
Friday, April 10th, 2026
Great Western Trail Race
Saturday, April 18th, 2026
Friends of the National Center Science Stride 5K
Friday, May 1st, 2026
The Colorado Marathon
Sunday, May 3rd, 2026
Longmont Half & 5k (LM Half)
J-Town Jog 5K and Youth Mile
Johnstown, CO
Saturday, June 6th, 2026
Colorado 13er (Half Marathon/10k/5k)
Sunday, June 7th, 2026
Red, White and Brew 5k, 10k, Half Marathon & 12...
Saturday, June 20th, 2026
Let Freedom Run 5k/10k - Louisville
Saturday, July 4th, 2026
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