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Half Marathons Found In Denver, Colorado
View all ↓Half Marathons in & near Denver, Colorado 2025 - 2026
The most comprehensive list of Half Marathons in and near Denver, Colorado in 2025 - 2026. Find your perfect race!
Race Calendar: Half Marathons Found In Denver, Colorado
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Red, White and Brew 5k, 10k, Half Marathon & 12 Hour Last Person Standing
Windsor, Colorado
21 Jun 25
$16.90 - $128.20
🚀Boosted
Steamworks Half Marathon
Durango, Colorado
07 Jun 25
$95.34
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Fall Equinox
Fort Collins, Colorado
14 Sep 25 - 04 Oct 25
$65.65 - $150.73
Autumn Run
Buena Vista, Colorado
20 Sep 25
$33.53 - $92.24
13th Annual Superhero Event
Greeley, Colorado
20 Sep 25 - 28 Sep 25
Free - $43.40
Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon
Canon City, Colorado
20 Sep 25 - 07 Dec 25
Free - $186.50
Beulah Challenge and OverIt Series
Beulah, Colorado
20 Sep 25
$18.25 - $187.25
Red Feather Trail Jamboree
Red Feather Lakes, Colorado
26 Sep 25 - 28 Sep 25
$107.00 - $316.00
Pioneer Prairie Dog Half, 10k & 5k
Westminster, Colorado
27 Sep 25
Free - $80.00
WILD Wahatoya Runs
La Veta, Huerfano
27 Sep 25
$50.00 - $100.00
National Singles Day: Singles & Friends Running DENVER/AURORA
Centennial, Colorado
27 Sep 25
$32.80 - $48.70
National Coffee Day: Run for Coffee DENVER/AURORA
Centennial, Colorado
27 Sep 25
$32.80 - $48.70
Cheers to Oktoberfest Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
04 Oct 25
$32.80 - $48.70
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
Layafette Music Fest Half-Marathon/10K/5K
Louisville, Colorado
05 Oct 25
$32.80 - $105.94
Windsor Marathon, Half Marathon, 10k & 5k
Windsor, Colorado
05 Oct 25
$20.00 - $130.00
Breckenridge Road Marathon
Breckenridge, Colorado
11 Oct 25
$25.79 - $122.19
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
Run Against Breast Cancer 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
18 Oct 25
$32.80 - $48.70
International Sloth Day Run 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
$27.50 - $64.60
Rock Canyon Half Marathon
Pueblo, Colorado
07 Dec 25
$38.10 - $59.30
5.0
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
13 Dec 25
$32.80 - $48.70
Run Against Breast Cancer 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
All-Out Polar Prowl
Arvada, Colorado
10 Jan 26
$27.50 - $64.60
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
All-Out Mardi Crawl
Arvada, Colorado
22 Feb 26
$27.50 - $64.60
Showing 41-80 of 93 results
