0038
Half Marathons Found In Colorado in Fall
View all ↓Half Marathons in Colorado in Fall 2026
Find A Race is the US's favourite event listings site. Check out our list of Fall 2026 Half Marathons in Colorado below.
Race Calendar: Half Marathons Found In Fall
🚀Boosted
The Colorado Marathon
Fort Collins, Colorado
Sun 03 May 26 - Sun 02 May 27
$38.10 - $421.00
🚀Boosted
Trail Sisters Women's Half Marathon & 10k
Buena Vista, Colorado
Sat 12 Sep 26
$69.90 - $107.00
Feature your event at the top of the results
Want more bookings?
Our most effective tool for getting more people to your race is a ‘Boost’. Boosts put your event to the top of the search results.
Typically a Boosted event gets 8x as many Impressions, 4x as many Clicks and generates 4x more revenue than a standard event listing.
Choose to Boost your event on the landing page which best suits your target audience and budget. For example, ‘10k’s near San Francisco or ‘marathons in April’. Our team can advise on scheduling promotions to optimize performance.
Prices start at $100 per month. The most popular categories sell out in advance so booking early is recommended.
Get in touch
Hi, I'm Rosie from findarace.com!
If you're looking to boost your event or have any questions, please fill in your details below and I'll be in touch to help you.
Fifty States Half Marathon Club General Membership
Colorado Springs, Colorado
Thu 02 May 24 - Sun 02 Apr 34
$91.10
Golden Harvest Half Marathon & 5k/10k - Denver
Denver, Colorado
Sat 05 Sep 26
$20.83 - $68.64
Golden Harvest Half Marathon & 5k/10k - Colorado Springs
Colorado Springs, Colorado
Sun 06 Sep 26
$20.83 - $52.28
Labor Day Half Marathon
Parker, Colorado
Mon 07 Sep 26
$37.64 - $83.00
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 12 Sep 26
$32.80 - $48.70
Black Squirrel Half Marathon
Bellvue, Colorado
Sat 12 Sep 26
$107.00
National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 12 Sep 26
$32.80 - $48.70
Trail Sisters Women's Half Marathon & 10k
Buena Vista, Colorado
Sat 12 Sep 26
$69.90 - $107.00
Beulah Challenge and OverIt Series
Beulah, Colorado
Sat 19 Sep 26
$23.25 - $192.55
All-Out Fall Fest
Westminster, Colorado
Sat 19 Sep 26
$27.50 - $75.20
Autumn Run
Buena Vista, Colorado
Sat 19 Sep 26
Free - $97.58
Fall Equinox
Fort Collins, Colorado
Sun 20 Sep 26 - Sat 03 Oct 26
$55.00 - $118.63
Red Feather Trail Jamboree
Red Feather Lakes, Colorado
Fri 25 Sep 26 - Sun 27 Sep 26
$107.00 - $316.00
Run for Donuts 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 26 Sep 26
$32.80 - $48.70
Oktoberfest Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 26 Sep 26
$32.80 - $48.70
Running for Children's Rights to Both Parents - 9 of 50 Half Marathons in 50 States - Colorado
Boulder, Colorado
Sun 27 Sep 26
$43.40 - $526.00
Colorado Springs Marathon, Half, 5K, and Kids K
Colorado Springs, Colorado
Sat 03 Oct 26
Free - $535.35
Rim to Rim Royal Gorge Races: 5K Road Run, Trail 8 Mile, Trail Half Marathon
Canon City, Colorado
Sat 03 Oct 26
Free - $85.80
Windsor Marathon, Half Marathon, 10k, 5k & 1 Mile Run
Windsor, Colorado
Sun 04 Oct 26
$20.00 - $115.00
Breckenridge RunFest
Breckenridge, Colorado
Sat 10 Oct 26
$30.25 - $120.35
The Long View Marathon
Fort Collins, Colorado
Sat 10 Oct 26
$38.10 - $107.00
Bagel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 10 Oct 26
$32.80 - $48.70
Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 10 Oct 26
$32.80 - $48.70
Durango Marathon
Durango, Colorado
Sun 11 Oct 26
$32.80 - $149.40
Westy Half & 5k
Westminster, Colorado
Sun 11 Oct 26
$40.00 - $65.00
Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 31 Oct 26
$32.80 - $48.70
PB&J Fuel Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 31 Oct 26
$32.80 - $48.70
Spooky Sprint - Colorado Springs
Colorado Springs, Colorado
Sat 31 Oct 26
$20.83 - $46.28
All-Out Kooky-Spooky
Golden, Colorado
Sun 01 Nov 26
$22.20 - $69.90
HRCA Backcountry Wilderness Half Marathon
Lone Tree, Colorado
Sat 07 Nov 26
$65.00
Turkey Trails - Colorado Springs
Colorado Springs, Colorado
Sun 08 Nov 26
$20.83 - $46.28
Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 14 Nov 26
$32.80 - $48.70
Run for Mental Health 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 14 Nov 26
$32.80 - $48.70
TURKEY TREK (13.1, 10k, 5k & 2k)
Arvada, Colorado
Sat 21 Nov 26
$26.00 - $64.00
Thanksgiving Gobble Trot Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 28 Nov 26
$32.80 - $48.70
Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA
Centennial, Colorado
Sat 28 Nov 26
$32.80 - $48.70
Platte River Half-Marathon, Relay & 5k
Littleton, Colorado
Sun 12 Apr 26 - Sun 11 Apr 27
$38.10 - $268.75
The Colorado Marathon
Fort Collins, Colorado
Sun 03 May 26 - Sun 02 May 27
$38.10 - $421.00
Showing 1-38 of 38 results
