Upcoming Half Marathon Races Near Steamboat Springs, CO

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

Louisville, CO

Sunday, June 1st, 2025

All-Out Summer Breeze

Arvada, CO

Saturday, June 7th, 2025

Aspen Valley Marathon

Aspen, CO

Saturday, July 19th, 2025

Rocky Mountain Half Marathon & 5K

Estes Park, CO

Friday, August 1st, 2025

All-Out Runapalooza

Arvada, CO

Saturday, August 2nd, 2025

Erie Half & 5k

Erie, CO

Sunday, August 17th, 2025

Byers Peak Stampede Half Marathon & 5K Run

Fraser, CO

Saturday, August 23rd, 2025

Black Squirrel Half Marathon

Bellvue, CO

Saturday, September 6th, 2025

Fall Equinox

Fort Collins, CO

Sunday, September 14th, 2025

Red Feather Trail Jamboree

Red Feather Lakes, CO

Friday, September 26th, 2025

Layafette Music Fest Half-Marathon/10K/5K

Louisville, CO

Sunday, October 5th, 2025

The Long View Marathon

Fort Collins, CO

Saturday, October 11th, 2025

Blue Sky Marathon & Half

Fort Collins, CO

Saturday, October 18th, 2025

All-Out Kooky-Spooky

Golden, CO

Sunday, November 2nd, 2025

10k Turkey Trek & 5k Turkey Trot - Now With HAL...

Arvada, CO

Saturday, November 22nd, 2025

All-Out Polar Prowl

Arvada, CO

Saturday, January 10th, 2026

Arctic Prairie Dog Half, 10k & 5k

Louisville, CO

Sunday, January 18th, 2026

All-Out Mardi Crawl

Arvada, CO

Sunday, February 22nd, 2026

All-Out Spring Fever

Golden, CO

Sunday, March 22nd, 2026