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Running in Colorado found

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Running in Colorado 2025 - 2026

The most comprehensive list of Colorado Running Events in 2025 - 2026. Discover 100's of US Colorado Running. Find your perfect race here!

Running Colorado 2025 - 2026

🚀Boosted

Denver Rocks Run 5K / 10K

Denver
07 Sep 25
$44.99 - $54.99

Offer

Use code FIND and get 10% off registration

🚀Boosted

Colorado Springs Marathon, Half, 5K, and Kids K

Colorado Springs, Colorado
04 Oct 25 - 05 Oct 25
Free - $535.35
Feature your event at the top of the results

Red, White and Brew 5k, 10k, Half Marathon & 12 Hour Last Person Standing

Windsor, Colorado
20 Jun 26
$16.90 - $122.90

Unicorn 5k (North)

Thornton, Colorado
20 Jun 26
$16.00 - $36.00

Father's Day Classic 10k, 5k, & 1 Mile

Arvada, Colorado
21 Jun 26
$11.00 - $39.00

Race in the Clouds - Alma Dirt Festival 2026

Alma, Colorado
27 Jun 26
$32.80 - $101.70

Let Freedom Run 5k/10k - Louisville

Louisville, Colorado
04 Jul 26
Free - $40.00

Silverheels Trail Runs

Como, Colorado
10 Jul 26 - 11 Jul 26

All-Out Dog Days

Westminster, Colorado
11 Jul 26
$27.50 - $64.60

Cookie Chase

Denver, Colorado
11 Jul 26
$34.40

Summer Splash Prairie Dog Half, 10k, & 5k

Castle Rock, Colorado
18 Jul 26
$30.00 - $65.00
4.0

Spirit of the West 5K Run/Walk

Golden, Colorado
26 Jul 26
Free - $30.00

50 States Half Marathon Club Life Membership

Colorado Springs, Colorado
25 Apr 31

50 States Half Marathon Club Life Membership

Colorado Springs, Colorado
26 Apr 31

Unleashed Fulfillment

Castle Rock, Colorado
01 Feb 20 - 31 Dec 25
Free

Prairie Dog Run Series

Louisville, Colorado
26 Jan 25 - 27 Sep 25
$900.00

Fleet Feet Denver Fall Marathon Sixteen-Week Training Program

Littleton, Colorado
10 Jun 25 - 28 Sep 25
$200.00

Boulderthon Full Marathon Training Program

Boulder, Colorado
11 Jun 25 - 28 Sep 25
$200.00

Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program

Littleton, Colorado
08 Jul 25 - 28 Sep 25
$155.00

Boulderthon Half Marathon Training Program

Boulder, Colorado
09 Jul 25 - 28 Sep 25
$150.00

Summer of Active-ism

Denver, Colorado
10 Jul 25 - 10 Aug 25
$2.00

TransRockies Run Charity Bibs

Buena Vista, Colorado
04 Aug 25 - 09 Aug 25
Free

2025 CKF Leadville Trail 100 Run

Aspen, Colorado
16 Aug 25 - 17 Aug 25
Free

Broomfield Battle

Broomfield, Colorado
22 Aug 25
Free

Continental Divide Trail Run

Steamboat Springs, Colorado
23 Aug 25
$27.50 - $138.80

[CANCELLED] Sloan's Lake Search Party (SLSP) Marathon Hourly Loop Race!

Denver, Colorado
14 Sep 25
$96.40

McGinn Memorial Cross Country Challenge

Pagosa Springs, Colorado
27 Sep 25
Free

Race in the Clouds - Festival 5K

Alma, Colorado
27 Sep 25
$38.10

Fall Series - Get Dirty! Get Muddy!

Colorado Springs, Colorado
05 Oct 25 - 16 Nov 25
$38.10 - $128.20

Kids' Fall Series - Where Kids Run Free!

Colorado Springs, Colorado
05 Oct 25 - 16 Nov 25
Free

Strides for Sierra 5K run/walk

Arvada, Colorado
05 Oct 25
$11.60 - $107.00

Chicken Creek Challenge

Mancos, Colorado
11 Oct 25
Free

The bRUNch Run™ -

Denver, Colorado
12 Oct 25
$43.40 - $75.20

2025 DU Crimson Classic 5K Run/1.5 Mile Walk

Denver, Colorado
14 Oct 25 - 17 Oct 25
Free

2025 Rim Rock Marathon and Half Marathon

Fruita, Mesa
02 Nov 25
$122.09 - $132.69

Team Boss CO Mile + 2 Mile 4 REAL

Niwot, Colorado
11 Nov 25
$30.00

YMCA of Pueblo Turkey Trot

Pueblo, Colorado
27 Nov 25
$32.80

2025 Summit for Life

Aspen, Colorado
06 Dec 25
$26.25 - $77.75

Sawmill Trail Runs

Pine, Colorado
06 Dec 25
$54.00 - $128.20

YMCA of Pueblo Hot Chocolate 5K

Pueblo, Colorado
27 Dec 25
$32.80

Super Half Marathon™ & Game Day 5K™ Presented by Toyota

Colorado Springs, Colorado
08 Feb 26
$32.80 - $69.90

Stories Trail Runs

Colorado Springs, Colorado
21 Feb 26 - 22 Feb 26
$64.60 - $160.00
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