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Half Marathons Found In Colorado in October
View all ↓Half Marathons in Colorado in October 2025
Find A Race is the US's favourite event listings site. Check out our list of October 2025 Half Marathons in Colorado below.
Race Calendar: Half Marathons Found In October
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 Springs Marathon, Half, 5K, and Kids K
Colorado Springs, Colorado
05 Oct 25
Free - $535.35
Westy Half & 5k
Westminster, Colorado
12 Oct 25
$28.50 - $54.00
Layafette Music Fest Half-Marathon/10K/5K
Louisville, Colorado
05 Oct 25
$32.80 - $105.94
The Long View Marathon
Fort Collins, Colorado
11 Oct 25
$32.80 - $75.20
Showing 1-6 of 6 results