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Half Marathons Found In Colorado

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Half Marathons in Colorado 2025 - 2026

The most comprehensive list of Half Marathons in and near Colorado in 2025 - 2026. 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

🚀Boosted

HRCA Backcountry Wilderness Half Marathon

Lone Tree, Colorado
08 Nov 25
$64.85
🚀Boosted

National Coffee Day: Run for Coffee DENVER/AURORA

Centennial, Colorado
27 Sep 25
$32.80 - $48.70
Feature your event at the top of the results

All-Out Spring Fever

Golden, Colorado
22 Mar 26
$27.50 - $64.60

Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado
04 Apr 26
$32.80 - $48.70

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

Arvada, Colorado
12 Apr 26
Free - $75.00

All-Out Beat the Heat

Westminster, Colorado
18 Apr 26
$27.50 - $64.60

Horsetooth Half Marathon

Fort Collins, Colorado
19 Apr 26
$80.50

Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado
25 Apr 26
$32.80 - $48.70

Longmont Half & 5k (LM Half)

Longmont, Colorado
03 May 26
$35.00 - $60.00

All-Out Summer Breeze

Arvada, Colorado
13 Jun 26
$27.50 - $64.60

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

Prairie Dog Run Series

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

5th Annual July 4th ROCK-IT RUN

Castle Rock, Colorado
04 Jul 25
Free - $59.30

2025 Rim Rock Marathon and Half Marathon

Fruita, Mesa
02 Nov 25
$122.09 - $132.69

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

Platte River Half-Marathon and Relay

Littleton, Colorado
12 Apr 26
$75.20 - $165.30

Great Western Trail Race

Severance, Colorado
18 Apr 26
$16.90 - $69.90

Runs With Scissors Races

Brighton, Colorado
25 Apr 26
$38.10 - $85.80

The Colorado Marathon

Fort Collins, Colorado
03 May 26
$38.10 - $138.80

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

Louisville, Colorado
07 Jun 26
$30.00 - $60.00

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

Windsor, Colorado
20 Jun 26
$48.70
Showing 81-101 of 101 results
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