Upcoming Half Marathon Races Near Steamboat Springs, CO

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Featured

Half

10K

5K

View details for race All-Out Polar Prowl

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Arctic Prairie Dog Half, 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

Half

10K

5K

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

All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

Half

10K

5K

View details for race All-Out Mardi Crawl

All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026

Half

10K

5K

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

Fort Collins, CO

Sunday, April 19th, 2026

Half

Trail

Fast

View details for race Horsetooth Half Marathon

Bigfoot Half Marathon

Estes Park, CO

Saturday, April 25th, 2026

Half

5K

View details for race Bigfoot Half Marathon

The Colorado Marathon

Fort Collins, CO

Sunday, May 3rd, 2026

Marathon

Half

10K

View details for race The Colorado Marathon

Longmont Half & 5k (LM Half)

Longmont, CO

Sunday, May 3rd, 2026

Half

5K

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

The Steamboat Marathon

Steamboat Springs, CO

Sunday, June 7th, 2026

Marathon

Half

10K

BQ

View details for race The Steamboat Marathon

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

Louisville, CO

Sunday, June 7th, 2026

Half

10K

5K

Trail

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

All-Out Summer Breeze

Arvada, CO

Saturday, June 13th, 2026

Half

10K

5K

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

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

Red Feather Trail Jamboree

Red Feather Lakes, CO

Friday, September 25th, 2026

Ultra

Half

Trail

View details for race Red Feather Trail Jamboree

All-Out Kooky-Spooky

Golden, CO

Sunday, November 1st, 2026

Half

10K

5K

View details for race All-Out Kooky-Spooky

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

Arvada, CO

Saturday, November 21st, 2026

Half

10K

5K

Trail

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

Explore more in Steamboat Springs, CO

Distances:

5K 10K Half Marathon Marathon

Months:

December January February

Tags:

Trail Boston Qualifiers Fast Courses

State:

All Colorado races

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