Half Marathons in Colorado in April 2025

Horsetooth Half Marathon

Fort Collins, Colorado

13 Apr 25

$101.70

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Platte River Half-Marathon and Relay

Littleton, Colorado

13 Apr 25

$85.80 - $186.50

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Three Creeks Half Marathon

Englewood, Colorado

13 Apr 25

$69.90 - $107.00

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Spring Fling Prairie Dog Half, 10k, & 5k

Arvada, Colorado

13 Apr 25

Free - $80.50

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All-Out Beat the Heat

Westminster, Colorado

19 Apr 25

$32.80 - $69.90

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NoCo Half Marathon & 10K

Loveland, Larimer County

26 Apr 25

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Runs With Scissors Races

Brighton, Colorado

26 Apr 25

$38.10 - $92.16

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Bigfoot Half Marathon

Estes Park, Colorado

26 Apr 25

$54.75 - $118.95

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Fifty States Half Marathon Club General Membership

Colorado Springs, Colorado

02 May 24 - 02 Apr 34

$91.10

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