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Half Marathons Found In Colorado in May

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Half Marathons in Colorado in May 2025

Find A Race is the US's favourite event listings site. Check out our list of May 2025 Half Marathons in Colorado below.

Race Calendar: Half Marathons Found In May

πŸš€Boosted

Prairie Dog Run Series

Louisville, Colorado
26 Jan 25 - 27 Sep 25
$900.00
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Donot Stop Half Marathon (5k/10k) - Colorado Springs

Colorado Springs, Colorado
11 May 25
$18.83 - $63.34
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Fifty States Half Marathon Club General Membership

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

Slacker Half Marathon-Relay-4-Mile Races

Georgetown, Colorado
01 Jan 25 - 28 Jun 25
$2.06 - $128.20

2025 Team CKF Running Series

Aspen, Colorado
22 Feb 25 - 25 Oct 25
Free

Fleet Feet Denver Spring Half Marathon Twelve-Week Training Program

Littleton, Colorado
25 Feb 25 - 18 May 25
$160.15

The Colorado Marathon

Fort Collins, Colorado
04 May 25
$54.00 - $379.00

Longmont Half & 5k (LM Half)

Longmont, Colorado
04 May 25
$55.00 - $80.00

DoNot Stop Half Marathon (5k/10k) - Denver

Littleton, Colorado
10 May 25
$18.83 - $63.34

Donot Stop Half Marathon (5k/10k) - Colorado Springs

Colorado Springs, Colorado
11 May 25
$18.83 - $63.34

Endure Trail Runs

Divide, Colorado
17 May 25 - 18 May 25
$75.20 - $191.80

Prairie Dog Run Series

Louisville, Colorado
26 Jan 25 - 27 Sep 25
$900.00
Showing 1-10 of 10 results