Colorado

Here's a full listing of races and events in Colorado.

Visit these pages for just marathons, half marathon, 10K or 5K races.

featured races

Currently there are no featured events for this state.

running & multisport races

Cirque Series Arapahoe Basin

Sep 5, 2026

Sep 12, 2026

Sep 18, 2026

Steamboat Springs

Pikes Peak Marathon + Ascent

Sep 19, 2026

Colorado Springs

Triathlon / Multisport

Sep 19, 2026

Fall Equinox Marathon, Half Marathon & 5 Mile

Sep 20, 2026

2026 Night Nation Run - Denver, CO

Sep 26, 2026

The Elevation Everest Race

Sep 26, 2026

WILD Wahatoya Runs

Sep 26, 2026

Boulderthon, presented by PUMA

Sep 27, 2026

Colorado Springs Marathon, Half, 5K, and Kids K

Oct 3, 2026

Colorado Springs

2026 SKECHERS Hot Chocolate Run - Denver

Oct 4, 2026

Westy Half & 5K

Oct 11, 2026

The Great Trailhead Foot Race

Oct 17, 2026

City Park 5k & 1 Mile Walk of Hope for Pancreatic Cancer Research

Nov 7, 2026

Dec 12, 2026

featured events

Yakima River Canyon Marathon and Half-Marathon

Mar 28, 2026

/

Yakima

Corvallis Half Marathon & 5K

Apr 11, 2026

/

Corvallis

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