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Half Marathons Found In Denver, Colorado

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Half Marathons in & near Denver, Colorado 2024 - 2025

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

Race Calendar: Half Marathons Found In Denver, Colorado

Denver, CO Galloway Training Program

Denver, Colorado
20 Apr 24 - 15 Apr 25
$91.10 - $274.00

Fifty States Half Marathon Club General Membership

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

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
15 Feb 25 - 16 Feb 25
$75.20 - $191.80

Ralston Creek Half Marathon & 5k

Arvada, Colorado
16 Feb 25
$27.50 - $144.10

All-Out Mardi Crawl

Arvada, Colorado
22 Feb 25
$43.40 - $80.50

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

Spring Equinox

Wellington, Colorado
23 Mar 25
$23.05 - $81.63

All-Out Spring Fever

Golden, Colorado
23 Mar 25
$32.80 - $69.90

Platte River Half-Marathon and Relay

Littleton, Colorado
13 Apr 25
$96.40 - $207.70

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

Three Creeks Half Marathon

Englewood, Colorado
13 Apr 25
$75.20 - $107.00

All-Out Beat the Heat

Westminster, Colorado
19 Apr 25
$32.80 - $69.90

Great Western Trail Race

Severance, Colorado
19 Apr 25
$16.90 - $69.90

NoCo Half Marathon & 10K

Loveland, Larimer County
26 Apr 25

Runs With Scissors Races

Brighton, Colorado
26 Apr 25
$38.10 - $92.16

Bigfoot Half Marathon

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

The Colorado Marathon

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

Longmont Half & 5k (LM Half)

Longmont, Colorado
04 May 25
$40.00 - $65.00

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

Littleton, Colorado
10 May 25
$18.83 - $48.28

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

Colorado Springs, Colorado
11 May 25
$18.83 - $48.28

Endure Trail Runs

Divide, Colorado
17 May 25 - 18 May 25
$75.20 - $191.80

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

Louisville, Colorado
01 Jun 25
$33.50 - $64.60

All-Out Summer Breeze

Arvada, Colorado
07 Jun 25
$32.80 - $69.90

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

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

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

Rocky Mountain Half Marathon & 5K

Estes Park, Colorado
01 Aug 25 - 02 Aug 25
Free - $193.47

Sheep Mountain Trail Runs

Fairplay, Colorado
02 Aug 25
$96.40 - $181.20
Showing 1-40 of 65 results
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