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Half Marathons Found In Colorado in Spring

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Half Marathons in Colorado in Spring 2026

Find A Race is the US's favourite event listings site. Check out our list of Spring 2026 Half Marathons in Colorado below.

Race Calendar: Half Marathons Found In Spring

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Longmont Half & 5k (LM Half)

Longmont, Colorado
Sun 03 May 26
$45.00 - $70.00
🚀Boosted

Fifty States Half Marathon Club General Membership

Colorado Springs, Colorado
Thu 02 May 24 - Sun 02 Apr 34
$91.10
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Fifty States Half Marathon Club General Membership

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

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

Colorado Springs, Colorado
Sat 04 Oct 25 - Sat 03 Oct 26
Free - $535.35

2026 Team CKF Running Series

Aspen, Colorado
Sat 24 Jan 26 - Sat 18 Apr 26
Free

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

Colorado Springs, Colorado
Sun 01 Mar 26
$20.83 - $50.28

St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA

Centennial, Colorado
Sat 14 Mar 26
$32.80 - $48.70

All-Out Spring Fever

Golden, Colorado
Sun 22 Mar 26
$27.50 - $64.60

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

Centennial, Colorado
Sat 04 Apr 26
$32.80 - $48.70

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

Arvada, Colorado
Sun 12 Apr 26
Free - $75.00

Platte River Half-Marathon and Relay

Littleton, Colorado
Sun 12 Apr 26
$75.20 - $165.30

All-Out Beat the Heat

Westminster, Colorado
Sat 18 Apr 26
$27.50 - $64.60

Spring Fling - Austin

Del Valle, Texas
Sat 18 Apr 26
$18.98 - $54.31

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

Colorado Springs, Colorado
Sat 18 Apr 26
$20.83 - $46.28

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

Littleton, Colorado
Sun 19 Apr 26
$20.83 - $46.28

Horsetooth Half Marathon - Presented by Fort Collins Connexion

Fort Collins, Colorado
Sun 19 Apr 26
$101.70

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

Centennial, Colorado
Sat 25 Apr 26
$32.80 - $48.70

Runs With Scissors Races

Brighton, Colorado
Sat 25 Apr 26
$38.10 - $85.80

The Colorado Marathon

Fort Collins, Colorado
Sun 03 May 26
$43.40 - $149.40

Longmont Half & 5k (LM Half)

Longmont, Colorado
Sun 03 May 26
$45.00 - $70.00

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

Colorado Springs, Colorado
Sat 09 May 26
$20.83 - $46.28

Hometown Half Marathon & 5k/10k - Denver

Denver, Colorado
Sun 10 May 26
$20.83 - $46.28

21st Annual Run Through Time Trail Marathon and Half Marathon

Salida, Colorado
Sat 14 Mar 26
$16.90 - $85.80

Great Western Trail Race

Severance, Colorado
Sat 18 Apr 26
$16.90 - $69.90
Showing 1-22 of 22 results

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