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Half Marathons Found In Colorado

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Half Marathons in Colorado 2024 - 2025

The most comprehensive list of Half Marathons in and near Colorado in 2024 - 2025. Find your perfect race!

Ready to take on a new challenge? If you're in Colorado and seeking half marathon races in neighboring states, look no further. Discover our calendars of:

Find your next great goal to chase at findarace, and choose from an extensive list of runs, swims, and cycles all over the US.

Race Calendar: Half Marathons Found In Colorado

Fifty States Half Marathon Club General Membership

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

All-Out Fa La La

Westminster, Colorado
07 Dec 24
$43.40 - $80.50

Rock Canyon Half Marathon

Pueblo, Colorado
08 Dec 24
$43.40 - $59.30

All-Out Polar Prowl

Arvada, Colorado
11 Jan 25
$11.60 - $80.50

Arctic Prairie Dog Half, 10k & 5k

Louisville, Colorado
19 Jan 25
$40.00 - $80.00

Chilly Willy 5K/10K/Half Marathon-Colorado Springs

Colorado Springs, Colorado
25 Jan 25
$33.60 - $65.20

Super Half Marathontrade mark & Game Day 5Ktrade mark Presented by Toyota

Colorado Springs, Colorado
09 Feb 25
$38.10 - $75.20

Stories Trail Runs

Colorado Springs, Colorado
16 Feb 25
$54.00 - $170.60

Ralston Creek Half Marathon & 5k

Arvada, Colorado
16 Feb 25
$27.50 - $144.10

All-Out Mardi Crawl

Arvada, Colorado
22 Feb 25
$32.80 - $69.90

2025 Team CKF Running Series

Aspen, Colorado
22 Feb 25 - 25 Oct 25
Free

Time to Paddy 5k/10k & Lucky 13.1 - Denver

Denver, Colorado
01 Mar 25
$18.83 - $54.28

Time to Paddy 5k/10k & Lucky 13.1 - Colorado Springs

Colorado Springs, Colorado
02 Mar 25
$18.83 - $54.28

20th Annual Run Through Time Trail Marathon and Half Marathon

Salida, Colorado
08 Mar 25
$16.90 - $85.80

All-Out Spring Fever

Golden, Colorado
23 Mar 25
$32.80 - $69.90

Platte River Half-Marathon and Relay

Littleton, Colorado
13 Apr 25
$85.80 - $186.50

Three Creeks Half Marathon

Englewood, Colorado
13 Apr 25
$69.90 - $107.00

Spring Fling Prairie Dog Half, 10k, & 5k

Arvada, Colorado
13 Apr 25
Free - $80.00

Horsetooth Half Marathon

Fort Collins, Colorado
13 Apr 25
$101.70

All-Out Beat the Heat

Westminster, Colorado
19 Apr 25
$32.80 - $69.90

NoCo Half Marathon & 10K

Loveland, Larimer County
26 Apr 25

Bigfoot Half Marathon

Estes Park, Colorado
26 Apr 25
$54.75 - $118.95

Runs With Scissors Races

Brighton, Colorado
26 Apr 25
$38.10 - $92.16

The Colorado Marathon

Fort Collins, Colorado
04 May 25
$43.40 - $154.70

Longmont Half & 5k (LM Half)

Longmont, Colorado
04 May 25
$39.00 - $64.60

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

Denver, Colorado
10 May 25
$18.83 - $44.28

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

Colorado Springs, Colorado
11 May 25
$18.83 - $44.28

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

Louisville, Colorado
01 Jun 25
$33.50 - $64.60

All-Out Summer Breeze

Arvada, Colorado
07 Jun 25
$27.50 - $64.60

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

Windsor, Colorado
21 Jun 25
$16.90 - $101.70

Hometown Half Marathon & 5k/10k - Denver

Denver, Colorado
21 Jun 25
$18.83 - $44.28

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

Colorado Springs, Colorado
22 Jun 25
$18.83 - $44.28

The Alma Foundation Race in the Clouds Dirt Festival

Alma, Colorado
10 Jul 25 - 13 Jul 25
Free - $69.90

All-Out Dog Days

Westminster, Colorado
12 Jul 25
$27.50 - $64.60

Aspen Valley Marathon

Aspen, Colorado
19 Jul 25
$54.25 - $186.75

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

Castle Rock, Colorado
19 Jul 25
$35.00 - $75.00

All-Out Runapalooza

Arvada, Colorado
02 Aug 25
$27.50 - $64.60

Erie Half & 5k

Erie, Colorado
17 Aug 25
$33.50 - $59.30

Labor Day Half Marathon

Parker, Colorado
01 Sep 25
$34.40 - $77.60

All-Out Fall Fest

Westminster, Colorado
13 Sep 25
$27.50 - $64.60
Showing 1-40 of 52 results
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