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5k Runs Found In Colorado in October
View all ↓5k Runs in Colorado in October 2025
Find A Race is the US's favourite event listings site. Check out our list of October 2025 5k Runs in Colorado below.
Race Calendar: 5k Runs Found In October
🚀Boosted
Race to Cure Sarcoma Denver
Denver, Colorado
25 Oct 25
$10.00 - $35.00
🚀Boosted
Layafette Music Fest Half-Marathon/10K/5K
Louisville, Colorado
05 Oct 25
$32.80 - $105.94
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Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon
Canon City, Colorado
20 Sep 25 - 07 Dec 25
Free - $186.50
Runway 5K - Run for the Angels
Broomfield, Colorado
27 Sep 25 - 04 Oct 25
$27.75 - $43.65
Flyin' Ryan Memorial 5k
Greeley, Colorado
03 Oct 25
$22.20
Cheers to Oktoberfest Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
04 Oct 25
$32.80 - $52.94
Run for Donuts 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
04 Oct 25
$32.80 - $52.94
Rainbow Trail Lutheran Camp's 19th Annual Grace Race 5k
Denver, Colorado
04 Oct 25
$40.00
Paws In The Park
Longmont, Colorado
04 Oct 25
$33.50
I Can 5k
Thornton, Colorado
04 Oct 25
Free
Not So Flatt Breast Cancer Awareness Run/Walk – 5K & 10K in Denver, CO
Westminster, Colorado
04 Oct 25
$10.00 - $40.00
Colorado Springs Marathon, Half, 5K, and Kids K
Colorado Springs, Colorado
04 Oct 25 - 05 Oct 25
Free - $535.35
PRA Miner Gold Rush
Broomfield, Colorado
04 Oct 25
$15.00 - $40.00
Big Waves Family 5K run/walk Presented by Brumate
Westminster, Colorado
04 Oct 25
$44.00
Layafette Music Fest Half-Marathon/10K/5K
Louisville, Colorado
05 Oct 25
$32.80 - $105.94
RMRR October Trophy Series
Aurora, Colorado
05 Oct 25
$11.60
Strides for Sierra 5K run/walk
Arvada, Colorado
05 Oct 25
$11.60 - $107.00
Liberty Energy 5K - Benefiting the Bettering Human Lives Foundation
Denver, Colorado
05 Oct 25
Free - $38.35
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run
Windsor, Colorado
05 Oct 25
$20.00 - $135.00
ASDAsh 5k
Aurora, Colorado
11 Oct 25
$30.00
Manitou 5K
Manitou Springs, Colorado
11 Oct 25
$27.50 - $43.40
Boulder XC Series Meet 1
Boulder, Colorado
11 Oct 25
$12.18 - $22.85
The Long View Marathon
Fort Collins, Colorado
11 Oct 25
$38.10 - $117.60
Kipling Villas 5K - 2025
Littleton, Colorado
11 Oct 25
$15.00
Suffer Better 9th Annual Fall Trail Runs
Pine, Colorado
11 Oct 25
$27.50 - $117.60
Gummball 5K
Brighton, Colorado
11 Oct 25
$33.05
Rubey Rescue Run
Aspen, Colorado
11 Oct 25
$65.00
Saint's Corp Pilgrimage Fun Run
Pagosa Springs, Colorado
11 Oct 25
$35.00
Joy & Justice 5k
Timnath, Colorado
12 Oct 25
$16.90 - $43.40
Westy Half & 5k
Westminster, Colorado
12 Oct 25
$45.00 - $70.00
Run Against Breast Cancer 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
18 Oct 25
$32.80 - $52.94
International Sloth Day Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
18 Oct 25
$32.80 - $52.94
Mancos Cowboy Half Marathon, 5K, and Fun Run
Mancos, Colorado
18 Oct 25
Free - $69.90
Homecoming 5k - Colorado State University
Fort Collins, Colorado
18 Oct 25
$28.38 - $44.35
Expo Park XC Runs
Aurora, Colorado
19 Oct 25
$26.44 - $27.50
DU Crimson Classic 5K Run/1.5 Mile Walk
Denver, Colorado
22 Oct 25
Free
Halloween Fun Run 5k & 1mile - Zombie Theme
Idaho Springs, Colorado
25 Oct 25
$22.20
Grand Valley Brew Runs
Grand Junction, Colorado
25 Oct 25 - 20 Dec 25
$38.10
YMCA of Pueblo Spooky Sprint 5K
Pueblo, Colorado
25 Oct 25
$43.40
Apex Foundation Trick or Trot 5K & Halloween Hunt presented by Intermountain Health
Arvada, Colorado
25 Oct 25
$8.00 - $35.00
Race to Cure Sarcoma Denver
Denver, Colorado
25 Oct 25
$10.00 - $35.00
Foundry Halloween 5k
Steamboat Springs, Colorado
25 Oct 25
$27.75
Showing 1-40 of 47 results
