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Half Marathons Found In Colorado in March

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Half Marathons in Colorado in March 2026

Find A Race is the US's favourite event listings site. Check out our list of March 2026 Half Marathons in Colorado below.

Race Calendar: Half Marathons Found In March

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The Colorado Marathon

Fort Collins, Colorado
04 May 25 - 03 May 26
$32.80 - $379.00
🚀Boosted

Fifty States Half Marathon Club General Membership

Colorado Springs, Colorado
02 May 24 - 02 Apr 34
$91.10
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Fifty States Half Marathon Club General Membership

Colorado Springs, Colorado
02 May 24 - 02 Apr 34
$91.10

2026 Team CKF Running Series

Aspen, Colorado
24 Jan 26 - 18 Apr 26
Free

All-Out Spring Fever

Golden, Colorado
22 Mar 26
$27.50 - $64.60

Platte River Half-Marathon and Relay

Littleton, Colorado
13 Apr 25 - 12 Apr 26
$80.50 - $268.75

The Colorado Marathon

Fort Collins, Colorado
04 May 25 - 03 May 26
$32.80 - $379.00
Showing 1-5 of 5 results