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Half Marathons Found In Colorado in Summer
View all ↓Half Marathons in Colorado in Summer 2025
Find A Race is the US's favourite event listings site. Check out our list of Summer 2025 Half Marathons in Colorado below.
Race Calendar: Half Marathons Found In Summer
Fifty States Half Marathon Club General Membership
Colorado Springs, Colorado
02 May 24 - 02 Apr 34
$91.10
2025 Team CKF Running Series
Aspen, Colorado
22 Feb 25 - 25 Oct 25
Free
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
Hometown Half Marathon & 5k/10k - Denver
Denver, Colorado
21 Jun 25
$18.83 - $44.28
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 - 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
Prairie Dog Run Series
Louisville, Colorado
12 Jan 25 - 27 Sep 25
$900.00
Sheep Mountain Trail Runs
Fairplay, Colorado
02 Aug 25
$75.20 - $160.00
Showing 1-15 of 15 results