CHSAA XC Regionals - Aurora
Aurora, Colorado, United States
5K races in Colorado
2026 and 2027 race calendar. 192 upcoming, updated daily.
Denver36Centennial30Colorado Springs24Arvada15Fort Collins11Westminster10Loveland7Golden6Grand Junction6Boulder5Estes Park5Littleton5Durango4Glenwood Springs4Louisville4Pueblo4Steamboat Springs4Windsor4Alamosa3Aurora3Buena Vista3Crested Butte3Englewood3Longmont3
All 77 cities and towns
Denver36Centennial30Colorado Springs24Arvada15Fort Collins11Westminster10Loveland7Golden6Grand Junction6Boulder5Estes Park5Littleton5Durango4Glenwood Springs4Louisville4Pueblo4Steamboat Springs4Windsor4Alamosa3Aurora3Buena Vista3Crested Butte3Englewood3Longmont3Salida3Thornton3Alma2Bailey2Erie2Fountain2Greeley2Highlands Ranch2Idaho Springs2Leadville2Lyons2Mancos2Palmer Lake2Parker2Westcliffe2Woodland Park2Aspen1Bayfield1Bellvue1Berthoud1Broomfield1Castle Rock1Como1Divide1Eaton1Eldorado Springs1Evergreen1Fairplay1Fraser1Fruita1Georgetown1Granby1Greenwood Village1Hesperus1Johnstown1Kremmling1Larkspur1Loma1Lone Tree1Manitou Springs1Montrose1Morrison1Pagosa Springs1Palisade1Pine1Red Feather Lakes1Severance1Silverton1South Fork1Superior1Telluride1Wellington1Winter Park1
October 2026
CHSAA XC Regionals Arvada
Arvada, Colorado, United States
CHSAA XC Regionals Denver
Denver, Colorado, United States
Colorado 2A Region 4
Mancos, Colorado, United States
Apex Foundation Trick or Trot 5K & Halloween Hunt Powered by REP Fitness
Arvada, Colorado, United States
Hoofin' It Through the Hollows 5K
Centennial, Colorado, United States
Mancos Cowboy Half Marathon, 5K, and Fun Run
Mancos, Colorado, United States
Race to Cure Sarcoma Denver
Denver, Colorado, United States
Run Fur Fun 5K
Fort Collins, Colorado, United States
YMCA Creepy Crawl 5K presented by Corwin Honda
Palmer Lake, Colorado, United States
YMCA of Pueblo Spooky Sprint 5K
Pueblo, Colorado, United States
Ghosts and Goblins 5K/10K
Denver, Colorado, United States
Colleen De Reuck XC Classic
Boulder, Colorado, United States
Halloween 5K Fundraiser!
Grand Junction, Colorado, United States
Halloween Fun 5k
Steamboat Springs, Colorado, United States
Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado, United States
I Ain't Scared (of 5k)
Thornton, Colorado, United States
PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado, United States
Spooky Sprint - Colorado Springs
Colorado Springs, Colorado, United States
Zombie Fun Run 5k & 1mile
Idaho Springs, Colorado, United States
November 2026
All-Out Kooky-Spooky
Golden, Colorado, United States
Feet for Justice Run
Denver, Colorado, United States
Girls on the Run Northern Colorado Fall 5K
Fort Collins, Colorado, United States
RMRR November 5k/15k
Denver, Colorado, United States
12th edition Sole Mates 5k & Brew Fest presented by Shoes & Brews and Left Hand Brewing
Longmont, Colorado, United States
Alamosa Veterans Memorial Park Race
Alamosa, Colorado, United States
Break a Leg 5k
Grand Junction, Colorado, United States
City Park Classic (5k/10k & 1 Mile Walk of Hope for Pancreatic Cancer Research)
Denver, Colorado, United States
Excel Eagle Trot 5K/1K Family Fun Run
Arvada, Colorado, United States
Turkey Trails- Denver
Littleton, Colorado, United States
Dragon Dash 5K Run/Walk
Denver, Colorado, United States
Turkey Trails - Colorado Springs
Colorado Springs, Colorado, United States
Denver Veterans Day Run
Denver, Colorado, United States
Leyden Rock Turkey Trot 5K
Arvada, Colorado, United States
Lone Tree Reckoning Heavy 15K and 5K
Loveland, Colorado, United States
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado, United States
Salute to Veterans 5K/10K/Half Marathon - Denver
Aurora, Colorado, United States
Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado, United States
Girls on the Run Denver Metro 5K
Denver, Colorado, United States
Salute to Veterans 5K/10K/Half Marathon - Colorado Springs
Colorado Springs, Colorado, United States
285 Turkey Trot - 2026
Bailey, Colorado, United States
Pumpkin Pie 5K/10K
Denver, Colorado, United States
TURKEY TREK (13.1, 10k, 5k & 2k)
Arvada, Colorado, United States
Turkey Trot Predict
Colorado Springs, Colorado, United States
2026 Loveland Turkey Trot
Loveland, Colorado, United States
AdventHealth Avista Louisville Turkey Trot
Louisville, Colorado, United States
Alpine Bank Boulder Thanksgiving Day 5K
Boulder, Colorado, United States
Broomfield Turkey Day 5K/10K
Broomfield, Colorado, United States
Buena Vista Turkey Trot 5K & Family Fun Run
Buena Vista, Colorado, United States
Fitness Avenue Turkey Trot 5K
Johnstown, Colorado, United States