Upcoming Half Marathon Races Near Steamboat Springs, CO

All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Featured

Half

10K

5K

Trail

View details for race All-Out Mardi Crawl

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All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

5K

Trail

View details for race All-Out Spring Fever

Spring Equinox

Wellington, CO

Sunday, March 29th, 2026

Half

5K

View details for race Spring Equinox

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

Arvada, CO

Sunday, April 12th, 2026

Half

10K

5K

View details for race Spring Fling Prairie Dog Half, 10k, & 5k

Prairie Dog Run Series

Louisville, CO

Sunday, April 12th, 2026

Half

View details for race Prairie Dog Run Series

Horsetooth Half Marathon - Presented by Fort Co...

Fort Collins, CO

Sunday, April 19th, 2026

Half

Fast

View details for race Horsetooth Half Marathon - Presented by Fort Collins Connexion

Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

5K

View details for race Bigfoot Half Marathon

NoCo Half Marathon & 10K

Loveland, CO

Saturday, April 25th, 2026

10K

Half

View details for race NoCo Half Marathon & 10K

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half

5K

View details for race Longmont Half & 5k (LM Half)

The Colorado Marathon

Fort Collins, CO

Sunday, May 3rd, 2026

Marathon

Half

10K

View details for race The Colorado Marathon

Colorado 13er (Half Marathon/10k/5k)

Louisville, CO

Sunday, June 7th, 2026

Half

10K

5K

View details for race Colorado 13er (Half Marathon/10k/5k)

The Steamboat Marathon

Steamboat Springs, CO

Sunday, June 7th, 2026

Marathon

Half

10K

View details for race The Steamboat Marathon

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

5K

Trail

View details for race All-Out Summer Breeze

Race in the Clouds - Alma Dirt Festival 2026

Alma, CO

Thursday, June 25th, 2026

Marathon

Half

1 Mile

Trail

Fast

View details for race Race in the Clouds - Alma Dirt Festival 2026

All-Out Runapalooza

Arvada, CO

Saturday, August 8th, 2026

Half

10K

5K

Trail

View details for race All-Out Runapalooza

Erie Half & 5k

Erie, CO

Sunday, August 16th, 2026

Half

5K

View details for race Erie Half & 5k

Byers Peak Stampede Half Marathon & 5K Run

Fraser, CO

Saturday, August 22nd, 2026

Half

5K

Trail

View details for race Byers Peak Stampede Half Marathon & 5K Run

Black Squirrel Half Marathon

Bellvue, CO

Saturday, September 12th, 2026

Half

Trail

View details for race Black Squirrel Half Marathon

Fall Equinox

Fort Collins, CO

Sunday, September 20th, 2026

Half

View details for race Fall Equinox

Red Feather Trail Jamboree

Red Feather Lakes, CO

Friday, September 25th, 2026

Ultra

Half

Trail

View details for race Red Feather Trail Jamboree

The Long View Marathon

Fort Collins, CO

Saturday, October 10th, 2026

Marathon

Half

5K

View details for race The Long View Marathon

All-Out Kooky-Spooky

Golden, CO

Sunday, November 1st, 2026

Half

10K

5K

Trail

View details for race All-Out Kooky-Spooky

TURKEY TREK (13.1, 10k, 5k & 2k)

Arvada, CO

Saturday, November 21st, 2026

Half

10K

5K

View details for race TURKEY TREK (13.1, 10k, 5k & 2k)

All-Out Polar Prowl

Arvada, CO

Saturday, January 9th, 2027

Half

10K

5K

Trail

View details for race All-Out Polar Prowl

Explore more in Steamboat Springs, CO

Distances:

5K 10K Half Marathon Marathon

Months:

January February March

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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