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10k Runs Found In Colorado in September

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10k Runs in Colorado in September 2025

Find A Race is the US's favourite event listings site. Check out our list of September 2025 10k Runs in Colorado below.

Race Calendar: 10k Runs Found In September

πŸš€Boosted

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

Parker, Colorado
13 Sep 25
$43.65 - $54.25
πŸš€Boosted

All-Out Fall Fest

Westminster, Colorado
13 Sep 25
$32.80 - $69.90
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2025 Team CKF Running Series

Aspen, Colorado
22 Feb 25 - 30 Dec 25
Free

The Colorado Marathon

Fort Collins, Colorado
04 May 25 - 03 May 26
$32.80 - $379.00

Fleet Feet Denver Fall 10k Eight-Week Training Program

Littleton, Colorado
05 Aug 25 - 28 Sep 25
$110.00

Labor Day Half Marathon

Parker, Colorado
01 Sep 25
$34.40 - $77.60

HRCA Wildcat Mountain Trail Races

Littleton, Colorado
06 Sep 25
$11.85 - $54.25

RMRR September Trophy Series

Thornton, Colorado
07 Sep 25
$11.60

All-Out Fall Fest

Westminster, Colorado
13 Sep 25
$32.80 - $69.90

Trail Sisters Women's Half Marathon & 10k

Buena Vista, Colorado
13 Sep 25
$69.90 - $107.00

Spooky Sprint - Colorado Springs

Colorado Springs, Colorado
13 Sep 25
$18.83 - $48.28

National Chocolate Day: Run for Chocolates DENVER/AURORA

Centennial, Colorado
13 Sep 25
$32.80 - $48.70

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

Centennial, Colorado
13 Sep 25
$32.80 - $48.70

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

Parker, Colorado
13 Sep 25
$43.65 - $54.25

Spooky Sprint - Denver

Littleton, Colorado
14 Sep 25
$18.83 - $48.28

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

Move Forward 5K & 10K

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

13th Annual Superhero Event

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

19th Annual Golden Gallop

Golden, Colorado
21 Sep 25
$22.45 - $43.65

Pioneer Prairie Dog Half, 10k & 5k

Westminster, Colorado
27 Sep 25
Free - $80.00

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

Autumn Run

Buena Vista, Colorado
20 Sep 25
$33.53 - $92.24
Showing 1-22 of 22 results