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5k Runs Found In Colorado in September

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5k Runs in Colorado in September 2025

Find A Race is the US's favourite event listings site. Check out our list of September 2025 5k Runs in Colorado below.

Race Calendar: 5k Runs Found In September

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2025 Montbello Alive! 5K

Denver, Colorado
20 Sep 25
$28.19
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Oak Creek No Fun Run

Oak Creek, Colorado
01 Sep 25
$27.50
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Boulderthon 5k/10k Training Program

Boulder, Colorado
06 Aug 25 - 28 Sep 25
$110.00

Fleet Feet Denver Fall 5k Five-Week Training Program

Littleton, Colorado
26 Aug 25 - 28 Sep 25
$80.00

Oak Creek No Fun Run

Oak Creek, Colorado
01 Sep 25
$27.50

Labor Day Half Marathon

Parker, Colorado
01 Sep 25
$37.64 - $83.00

St Vrain for the Brain

Longmont, Boulder
06 Sep 25
$25.00

RexRun For PAWSitivity 2025 5K Trail Run/Walk

Aurora, Colorado
06 Sep 25
$22.45 - $54.25

Flyin' Lion 5K

Littleton, Colorado
07 Sep 25
$17.15 - $33.05

Denver Rocks Run 5K / 10K

Denver
07 Sep 25
$44.99 - $54.99

Rebel Run 5k

Denver, Colorado
07 Sep 25
$10.00 - $35.00

RMRR September Trophy Series

Thornton, Colorado
07 Sep 25
$11.60

Conservation Colorado 5k

Denver, Colorado
07 Sep 25
$25.00

Minturn MeadowGold 11K & 5K

Minturn, Eagle
13 Sep 25
$32.00 - $40.00

All-Out Fall Fest

Westminster, Colorado
13 Sep 25
$43.40 - $80.50

Spirit of the Valley 5k

Grand Junction, Colorado
13 Sep 25
$11.60 - $38.10

National Chocolate Day: Run for Chocolates DENVER/AURORA

Centennial, Colorado
13 Sep 25
$32.80 - $48.70

The Denver 5k

Denver, Colorado
13 Sep 25
Free - $49.85

Parker Parks and Recreation So Long to Summer 5K/10K

Parker, Colorado
13 Sep 25
$43.65 - $54.25

Hedgehog Dash 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado
13 Sep 25
$32.80 - $48.70

Break Your Neck: Walk, Run, or Roll

Pueblo, Colorado
13 Sep 25
Free

Spooky Sprint - Colorado Springs

Colorado Springs, Colorado
13 Sep 25
$20.83 - $59.10

Historic Elizabeth Main Street 5K & Family Color Run

Elizabeth, Colorado
13 Sep 25
$15.00 - $35.00

9/11 Heroes Run - Denver, Colorado

Denver, Colorado
14 Sep 25
Free - $48.70

Spooky Sprint - Denver

Littleton, Colorado
14 Sep 25
$23.98 - $60.16

Move Forward 5K & 10K

Denver, Colorado
20 Sep 25 - 27 Sep 25
$22.45 - $40.47

2025 ColorFest Color Run/Walk 5K

Pagosa Springs, Colorado
20 Sep 25
$38.10

Miles 4 Madison 5K & 1K

Littleton, Colorado
20 Sep 25
$20.00 - $25.00

Spargetoberfest 5/10K

Wellington, Larimer
20 Sep 25
$25.00 - $35.00

Autumn Run

Buena Vista, Colorado
20 Sep 25
$33.53 - $92.24

Pat Mahan Memorial Foundation 5K

Wiggins, Colorado
20 Sep 25
$43.40

13th Annual Superhero Event

Greeley, Colorado
20 Sep 25 - 28 Sep 25
Free - $43.40

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

Beulah Challenge and OverIt Series

Beulah, Colorado
20 Sep 25
$18.25 - $187.25

2025 Montbello Alive! 5K

Denver, Colorado
20 Sep 25
$28.19

Farmers 5000

Wheat Ridge, Colorado
21 Sep 25
$12.00 - $32.50

19th Annual Golden Gallop

Golden, Colorado
21 Sep 25
$22.45 - $48.95

All Hands on Deck The Pirates 5K

Colorado Springs, Colorado
21 Sep 25
$27.50

Rising Phoenix Festival & 5K

Loveland, Colorado
27 Sep 25
$32.80 - $43.40

Bayfield Heritage Days 5k

Bayfield, Colorado
27 Sep 25
$22.20

National Singles Day: Singles & Friends Running DENVER/AURORA

Centennial, Colorado
27 Sep 25
$32.80 - $48.70

National Coffee Day: Run for Coffee DENVER/AURORA

Centennial, Colorado
27 Sep 25
$32.80 - $48.70
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