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Half Marathons Found In Colorado in August
View all ↓Half Marathons in Colorado in August 2025
Find A Race is the US's favourite event listings site. Check out our list of August 2025 Half Marathons in Colorado below.
Race Calendar: Half Marathons Found In August
πBoosted
Hero Hustle Colorado Springs
Colorado Springs, Colorado
02 Aug 25
$13.83 - $54.28
πBoosted
The Colorado Marathon
Fort Collins, Colorado
04 May 25 - 03 May 26
$32.80 - $379.00
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Denver, CO Galloway Training Program
Denver, Colorado
20 Apr 24 - 05 Nov 25
$91.10 - $274.00
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 - 30 Dec 25
Free
The Colorado Marathon
Fort Collins, Colorado
04 May 25 - 03 May 26
$32.80 - $379.00
Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program
Littleton, Colorado
08 Jul 25 - 28 Sep 25
$155.00
Rocky Mountain Half Marathon & 5K
Estes Park, Colorado
01 Aug 25 - 02 Aug 25
Free - $234.20
All-Out Runapalooza
Arvada, Colorado
02 Aug 25
$32.80 - $69.90
Sheep Mountain Trail Runs
Fairplay, Colorado
02 Aug 25
$96.40 - $181.20
Hero Hustle Colorado Springs
Colorado Springs, Colorado
02 Aug 25
$13.83 - $54.28
Popsicle 5K/10K/Half - Colorado Springs
Colorado Springs, Colorado
02 Aug 25
$39.10 - $65.20
Bound for Boston Marathon & Half Marathon - Denver
Denver, Colorado
03 Aug 25
$49.10 - $102.70
Erie Half & 5k
Erie, Colorado
17 Aug 25
$45.00 - $70.00
Byers Peak Stampede Half Marathon & 5K Run
Fraser, Colorado
23 Aug 25
$54.00 - $75.20
Arrowhead Half Marathon & 5K
Edwards, Eagle
23 Aug 25
$32.00 - $52.00
Staunton Rocks! Marathon and Half Marathon
Pine, Colorado
23 Aug 25
$107.00 - $128.20
TBK Bank Thirsty 13 Half Marathon
Durango, Colorado
23 Aug 25
$91.10 - $125.55
Prairie Dog Run Series
Louisville, Colorado
26 Jan 25 - 27 Sep 25
$900.00
Platte River Half-Marathon and Relay
Littleton, Colorado
13 Apr 25 - 12 Apr 26
$80.50 - $268.75
Showing 1-18 of 18 results