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Half Marathons Found In Colorado in Summer
View all ↓Half Marathons in Colorado in Summer 2026
Find A Race is the US's favourite event listings site. Check out our list of Summer 2026 Half Marathons in Colorado below.
Race Calendar: Half Marathons Found In Summer
πBoosted
Fifty States Half Marathon Club General Membership
Colorado Springs, Colorado
02 May 24 - 02 Apr 34
$91.10
πBoosted
All-Out Dog Days
Westminster, Colorado
11 Jul 26
$27.50 - $64.60
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Fifty States Half Marathon Club General Membership
Colorado Springs, Colorado
02 May 24 - 02 Apr 34
$91.10
Colorado 13er (Half Marathon/10k/5k)
Louisville, Colorado
07 Jun 26
$30.00 - $60.00
All-Out Summer Breeze
Arvada, Colorado
13 Jun 26
$27.50 - $64.60
Red, White and Brew 5k, 10k, Half Marathon & 12 Hour Last Person Standing
Windsor, Colorado
20 Jun 26
$16.90 - $122.90
Race in the Clouds - Alma Dirt Festival 2026
Alma, Colorado
27 Jun 26
$32.80 - $101.70
All-Out Dog Days
Westminster, Colorado
11 Jul 26
$27.50 - $64.60
Summer Splash Prairie Dog Half, 10k, & 5k
Castle Rock, Colorado
18 Jul 26
$30.00 - $65.00
4.0
Erie Half & 5k
Erie, Colorado
16 Aug 26
$33.50 - $59.30
TBK Bank Thirsty 13 Half Marathon
Durango, Colorado
29 Aug 26
$91.10 - $127.14
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