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Witch Paddle
Littleton, CO |
Oct. 17, '26 |
Oct. 17, '26 |
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Blue Sky Trail Marathon & Half Marathon
Fort Collins, CO |
Oct. 17, '26 |
Oct. 18, '26 |
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Beti Bike Bash
Elbert, CO |
Oct. 17, '26 |
Oct. 18, '26 |
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Indian Creek Trail Runs
Sedalia, CO |
Oct. 17, '26 |
Oct. 17, '26 |
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The Palmer Lake .5K (Yes "Point" 5)
Palmer Lake, CO |
Oct. 18, '26 |
Oct. 18, '26 |
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Fall Harvest Kids Duathlon
Colorado Springs, CO |
Oct. 18, '26 |
Oct. 18, '26 |
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Halloween Hustle for Charity
Glenwood Springs, CO |
Oct. 18, '26 |
Oct. 18, '26 |
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Running Scared 5K/13K - Colorado Springs
Colorado Springs, CO |
Oct. 18, '26 |
Oct. 18, '26 |
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DU Crimson Classic 5K Run/1.5 Mile Walk
Denver, CO |
Oct. 21, '26 |
Oct. 21, '26 |
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YMCA Creepy Crawl 5K presented by Corwin Honda
Palmer Lake, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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Apex Foundation Trick or Trot 5K & Halloween Hunt Powered by REP Fitness
Arvada, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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Race to Cure Sarcoma Denver
Denver, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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Zedikiah Scholarship 5K
Denver, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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Mancos Cowboy Half Marathon, 5K, and Fun Run
Mancos, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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Hoofin' It Through the Hollows 5K
Centennial, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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YMCA of Pueblo Spooky Sprint 5K
Pueblo, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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McGraw Memorial Park "Quick Draw @ McGraw" 2 Mile Trail Race
Bailey, CO |
Oct. 24, '26 |
Oct. 24, '26 |
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YMCA of Pueblo Race Series
Pueblo, CO |
Oct. 24, '26 |
Jan. 2, '27 |
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Ghosts and Goblins 5K/10K
Denver, CO |
Oct. 25, '26 |
Oct. 25, '26 |
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Bright Nights at Four Mile Historic Park
Fort Lupton, CO |
Oct. 29, '26 |
Oct. 29, '26 |
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Mini Tri comp only
Fort Lupton, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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Halloween Fun 5k
Steamboat Springs, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA
Centennial, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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Halloween Zombie Fun Run 5k & 1mile
Idaho Springs, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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Panda Waddle 5k
Grand Junction, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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Woodmen Hills Monster Mash 5k and Beer Run
Peyton, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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I Ain't Scared (of 5k)
Thornton, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA
Centennial, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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2026 Eerie Erie
Erie, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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Spooky Sprint - Colorado Springs
Colorado Springs, CO |
Oct. 31, '26 |
Oct. 31, '26 |
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