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Half Marathons Found In Fort Collins, Colorado

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Half Marathons in & near Fort Collins, Colorado 2025 - 2026

The most comprehensive list of Half Marathons in and near Fort Collins, Colorado in 2025 - 2026. Find your perfect race!

Race Calendar: Half Marathons Found In Fort Collins, Colorado

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The Alma Foundation Race in the Clouds Dirt Festival

Alma, Colorado
10 Jul 25 - 13 Jul 25
Free - $133.50
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Sheep Mountain Trail Runs

Fairplay, Colorado
02 Aug 25
$96.40 - $181.20
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Denver, CO Galloway Training Program

Denver, Colorado
20 Apr 24 - 05 Nov 25
$91.10 - $274.00

Fifty States Half Marathon Club General Membership

Colorado Springs, Colorado
02 May 24 - 02 Apr 34
$91.10

Slacker Half Marathon-Relay-4-Mile Races

Georgetown, Colorado
01 Jan 25 - 28 Jun 25
$38.10 - $128.20

2025 Team CKF Running Series

Aspen, Colorado
22 Feb 25 - 30 Dec 25
Free

Fleet Feet Denver Spring Half Marathon Twelve-Week Training Program

Littleton, Colorado
25 Feb 25 - 18 May 25
$160.15

Runs With Scissors Races

Brighton, Colorado
26 Apr 25
$38.10 - $108.06

Bigfoot Half Marathon

Estes Park, Colorado
26 Apr 25
$70.80 - $156.40

The Colorado Marathon

Fort Collins, Colorado
04 May 25
$54.00 - $379.00

Longmont Half & 5k (LM Half)

Longmont, Colorado
04 May 25
$60.00 - $85.00

DoNot Stop Half Marathon (5k/10k) - Denver

Littleton, Colorado
10 May 25
$18.83 - $71.82

Donot Stop Half Marathon (5k/10k) - Colorado Springs

Colorado Springs, Colorado
11 May 25
$18.83 - $71.82

Endure Trail Runs

Divide, Colorado
17 May 25 - 18 May 25
$85.80 - $202.40

2.2 for 22q Walk/Run/Ride 2025

Anywhere, Colorado
31 May 25 - 08 Jun 25
$24.32

Colorado 13er (Half Marathon/10k/5k)

Louisville, Colorado
01 Jun 25
$39.00 - $69.90

All-Out Summer Breeze

Arvada, Colorado
07 Jun 25
$43.40 - $80.50

Steamworks Half Marathon

Durango, Colorado
07 Jun 25
$84.74

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

Windsor, Colorado
21 Jun 25
$16.90 - $122.90

Hometown Half Marathon & 5k/10k - Denver

Westminster, Colorado
21 Jun 25
$18.83 - $54.28

Hometown Half Marathon & 5k/10k - Colorado Springs

Colorado Springs, Colorado
22 Jun 25
$18.83 - $54.28

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

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

The Alma Foundation Race in the Clouds Dirt Festival

Alma, Colorado
10 Jul 25 - 13 Jul 25
Free - $133.50

All-Out Dog Days

Westminster, Colorado
12 Jul 25
$32.80 - $69.90

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

Castle Rock, Colorado
19 Jul 25
$40.00 - $80.00

Aspen Valley Marathon

Aspen, Colorado
19 Jul 25
$75.45 - $234.45

Rocky Mountain Half Marathon & 5K

Estes Park, Colorado
01 Aug 25 - 02 Aug 25
Free - $234.20

Popsicle 5K/10K/Half - Colorado Springs

Colorado Springs, Colorado
02 Aug 25
$39.10 - $65.20

Sheep Mountain Trail Runs

Fairplay, Colorado
02 Aug 25
$96.40 - $181.20

Hero Hustle Colorado Springs

Colorado Springs, Colorado
02 Aug 25
$13.83 - $54.28

All-Out Runapalooza

Arvada, Colorado
02 Aug 25
$32.80 - $69.90

Bound for Boston Marathon & Half Marathon - Denver

Denver, Colorado
03 Aug 25
$49.10 - $102.70

Erie Half & 5k

Erie, Colorado
17 Aug 25
$45.00 - $70.00

Byers Peak Stampede Half Marathon & 5K Run

Fraser, Colorado
23 Aug 25
$54.00 - $75.20

TBK Bank Thirsty 13 Half Marathon

Durango, Colorado
23 Aug 25
$91.10 - $125.55

Arrowhead Half Marathon & 5K

Edwards, Eagle
23 Aug 25
$32.00 - $52.00

Staunton Rocks! Marathon and Half Marathon

Pine, Colorado
23 Aug 25
$107.00 - $128.20

Labor Day Half Marathon

Parker, Colorado
01 Sep 25
$34.40 - $77.60

Black Squirrel Half Marathon

Bellvue, Colorado
06 Sep 25
$107.00

All-Out Fall Fest

Westminster, Colorado
13 Sep 25
$32.80 - $69.90

Spooky Sprint - Colorado Springs

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

Trail Sisters Women's Half Marathon & 10k

Buena Vista, Colorado
13 Sep 25
$69.90 - $107.00
Showing 1-40 of 70 results
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