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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
🚀Boosted
Arctic Prairie Dog Half, 10k & 5k
Louisville, Colorado
18 Jan 26
$40.00 - $80.00
🚀Boosted
Summer Splash Prairie Dog Half, 10k, & 5k
Castle Rock, Colorado
18 Jul 26
$30.00 - $65.00
4.0
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Chilly Willy 5K/10K/Half Marathon-Colorado Springs
Colorado Springs, Colorado
24 Jan 26
$33.60 - $65.20
2026 Team CKF Running Series
Aspen, Colorado
24 Jan 26 - 18 Apr 26
Free
Lunar New Year Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
07 Feb 26
$32.80 - $48.70
Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
07 Feb 26
$32.80 - $48.70
Super Half Marathon™ & Game Day 5K™ Presented by Toyota
Colorado Springs, Colorado
08 Feb 26
$32.80 - $69.90
Valentines Live, Love, RUN 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
14 Feb 26
$32.80 - $48.70
Ralston Creek Half Marathon & 5k
Arvada, Colorado
15 Feb 26
$27.50 - $133.50
All-Out Mardi Crawl
Arvada, Colorado
22 Feb 26
$32.80 - $69.90
Time to Paddy 5k/10k & Lucky 13.1 - Denver
Denver, Colorado
28 Feb 26
$20.83 - $50.28
Time to Paddy 5k/10k & Lucky 13.1 - Colorado Springs
Colorado Springs, Colorado
01 Mar 26
$20.83 - $50.28
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
Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
04 Apr 26
$32.80 - $48.70
Platte River Half-Marathon and Relay
Littleton, Colorado
12 Apr 26
$75.20 - $165.30
Spring Fling Prairie Dog Half, 10k, & 5k
Arvada, Colorado
12 Apr 26
Free - $75.00
All-Out Beat the Heat
Westminster, Colorado
18 Apr 26
$27.50 - $64.60
Spring Fling - Austin
Del Valle, Texas
18 Apr 26
$18.98 - $54.31
Horsetooth Half Marathon - Presented by Fort Collins Connexion
Fort Collins, Colorado
19 Apr 26
$91.10
Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
25 Apr 26
$32.80 - $48.70
Runs With Scissors Races
Brighton, Colorado
25 Apr 26
$38.10 - $85.80
The Colorado Marathon
Fort Collins, Colorado
03 May 26
$43.40 - $149.40
Longmont Half & 5k (LM Half)
Longmont, Colorado
03 May 26
$45.00 - $70.00
Hometown Half Marathon & 5k/10k - Colorado Springs
Colorado Springs, Colorado
09 May 26
$20.83 - $46.28
Hometown Half Marathon & 5k/10k - Denver
Denver, Colorado
10 May 26
$20.83 - $46.28
The Steamboat Marathon
Steamboat Springs, Colorado
07 Jun 26
$76.40 - $135.25
Colorado 13er (Half Marathon/10k/5k)
Louisville, Colorado
07 Jun 26
$35.00 - $65.00
All-Out Summer Breeze
Arvada, Colorado
13 Jun 26
$27.50 - $64.60
Red, White and Brew 5k, 10k, Half Marathon & 12 Hour Last Person Standing
Windsor, Colorado
20 Jun 26
$16.90 - $122.90
Race in the Clouds - Alma Dirt Festival 2026
Alma, Colorado
27 Jun 26
$32.80 - $101.70
All-Out Dog Days
Westminster, Colorado
11 Jul 26
$27.50 - $64.60
Summer Splash Prairie Dog Half, 10k, & 5k
Castle Rock, Colorado
18 Jul 26
$30.00 - $65.00
4.0
Erie Half & 5k
Erie, Colorado
16 Aug 26
$33.50 - $59.30
Byers Peak Stampede Half Marathon & 5K Run
Fraser, Colorado
22 Aug 26
$54.00 - $75.20
Labor Day Half Marathon
Parker, Colorado
07 Sep 26
$34.40 - $77.60
All-Out Fall Fest
Westminster, Colorado
16 Sep 26 - 23 Sep 26
$27.50 - $64.60
50 States Half Marathon Club Life Membership
Colorado Springs, Colorado
25 Apr 31
50 States Half Marathon Club Life Membership
Colorado Springs, Colorado
26 Apr 31
Prairie Dog Run Series
Louisville, Colorado
26 Jan 25 - 27 Sep 25
$900.00
Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program
Littleton, Colorado
08 Jul 25 - 28 Sep 25
$155.00
Boulderthon Half Marathon Training Program
Boulder, Colorado
09 Jul 25 - 28 Sep 25
$150.00
Showing 41-80 of 89 results
