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Half Marathons Found In Fort Collins, Colorado
View all ↓Half Marathons in & near Fort Collins, Colorado 2025 - 2026
The most comprehensive list of Half Marathons in and near Fort Collins, Colorado in 2025 - 2026. Find your perfect race!
Race Calendar: Half Marathons Found In Fort Collins, Colorado
🚀Boosted
Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
29 Nov 25
$32.80 - $48.70
🚀Boosted
All-Out Spring Fever
Golden, Colorado
22 Mar 26
$27.50 - $64.60
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Pioneer Prairie Dog Half, 10k & 5k
Westminster, Colorado
27 Sep 25
Free - $80.00
Run for Donuts 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
04 Oct 25
$32.80 - $48.70
Colorado Springs Marathon, Half, 5K, and Kids K
Colorado Springs, Colorado
04 Oct 25 - 05 Oct 25
Free - $535.35
Cheers to Oktoberfest Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
04 Oct 25
$32.80 - $48.70
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run
Windsor, Colorado
05 Oct 25
$20.00 - $130.00
Layafette Music Fest Half-Marathon/10K/5K
Louisville, Colorado
05 Oct 25
$32.80 - $105.94
Breckenridge Road Marathon
Breckenridge, Colorado
11 Oct 25
$28.06 - $124.46
The Long View Marathon
Fort Collins, Colorado
11 Oct 25
$38.10 - $107.00
Westy Half & 5k
Westminster, Colorado
12 Oct 25
$40.00 - $65.00
International Sloth Day Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
18 Oct 25
$32.80 - $48.70
Run Against Breast Cancer 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
18 Oct 25
$32.80 - $48.70
Mancos Cowboy Half Marathon, 5K, and Fun Run
Mancos, Colorado
18 Oct 25
Free - $69.90
Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
01 Nov 25
$32.80 - $48.70
Run DENVER/AURORA "The Mile High City" 5K/10K/13.1 FALL
Centennial, Colorado
01 Nov 25
$32.80 - $48.70
All-Out Kooky-Spooky
Golden, Colorado
02 Nov 25
$32.80 - $69.90
HRCA Backcountry Wilderness Half Marathon
Lone Tree, Colorado
08 Nov 25
$64.85
Bed to 5K/10K/13.1 Snoozers Run DENVER/AURORA
Centennial, Colorado
15 Nov 25
$32.80 - $48.70
Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
15 Nov 25
$32.80 - $48.70
10k Turkey Trek & 5k Turkey Trot - Now With HALF MARATHON DISTANCE!
Arvada, Colorado
22 Nov 25
$29.00 - $69.00
Thanksgiving Turkey Gobble Trot 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
29 Nov 25
$32.80 - $48.70
Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
29 Nov 25
$32.80 - $48.70
All-Out Fa La La
Westminster, Colorado
06 Dec 25
$32.80 - $69.90
Rock Canyon Half Marathon
Pueblo, Colorado
07 Dec 25
$38.10 - $59.30
5.0
Run Against Breast Cancer 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
13 Dec 25
$32.80 - $48.70
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
13 Dec 25
$32.80 - $48.70
A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
27 Dec 25
$32.80 - $48.70
New Year's Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
27 Dec 25
$32.80 - $48.70
Sunrise Marathon 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
03 Jan 26
$32.80 - $48.70
New Year New Me Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
03 Jan 26
$32.80 - $48.70
All-Out Polar Prowl
Arvada, Colorado
10 Jan 26
$32.80 - $69.90
Run for Donuts 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
17 Jan 26
$32.80 - $48.70
MLK Freedom Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
17 Jan 26
$32.80 - $48.70
Arctic Prairie Dog Half, 10k & 5k
Louisville, Colorado
18 Jan 26
$40.00 - $80.00
2026 Team CKF Running Series
Aspen, Colorado
24 Jan 26 - 18 Apr 26
Free
Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
07 Feb 26
$32.80 - $48.70
Lunar New Year Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
07 Feb 26
$32.80 - $48.70
Valentines Live, Love, RUN 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
14 Feb 26
$32.80 - $48.70
All-Out Mardi Crawl
Arvada, Colorado
22 Feb 26
$27.50 - $64.60
St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
14 Mar 26
$32.80 - $48.70
All-Out Spring Fever
Golden, Colorado
22 Mar 26
$27.50 - $64.60
Showing 41-80 of 100 results
