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Half Marathons Found In Colorado in September
View all ↓Half Marathons in Colorado in September 2026
Find A Race is the US's favourite event listings site. Check out our list of September 2026 Half Marathons in Colorado below.
Race Calendar: Half Marathons Found In September
🚀Boosted
Golden Harvest Half Marathon & 5k/10k - Colorado Springs
Colorado Springs, Colorado
Sun 06 Sep 26
$20.83 - $46.28
🚀Boosted
Autumn Run
Buena Vista, Colorado
Sat 19 Sep 26
$33.53 - $97.58
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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
Golden Harvest Half Marathon & 5k/10k - Denver
Denver, Colorado
Sat 05 Sep 26
$20.83 - $62.28
Golden Harvest Half Marathon & 5k/10k - Colorado Springs
Colorado Springs, Colorado
Sun 06 Sep 26
$20.83 - $46.28
Labor Day Half Marathon
Parker, Colorado
Mon 07 Sep 26
$34.40 - $77.60
All-Out Fall Fest
Westminster, Colorado
Sat 19 Sep 26
$27.50 - $64.60
Autumn Run
Buena Vista, Colorado
Sat 19 Sep 26
$33.53 - $97.58
Showing 1-7 of 7 results