Denver Colfax Marathon Half Marathon 10M & Relay

May 17, 2025

Denver

Road

Distances

Marathon, Half-Marathon

Starting Time

6:30 AM

Fees

Visit website for current race fees.

Perfect For

Fun Run, Beginner Friendly, Destination Race, Big Finisher Party, Well Organized, Great Swag

Ready to sign up?

1,000-10,000

Fast & Flat

Park Run

High: 70°

/ Low: 49°

The largest running weekend in The Rockies is back with 25,000 runners! Go for Denver’s only marathon where you go inside Empower Field at Mile High Stadium twice, along 7 miles of water, tour of Lakewood, and pass Casa Bonita. Get a team of 5 and split it up with the Marathon Relay! The Urban 10 Miler option is the last 10 miles of the Marathon course of fun.

The Half Marathon has your own personal safari with a mile segment through Denver Zoo, inside Denver Fire Station No. 1, by epic spots like the Capital and VooDoo Donuts, and past the dancing aliens.

Finish in Denver City Park with 50,000 new friends that includes your unique finisher medal, lunch, drinks, live band, picture opps, and more!

Visit the race website for an up to date course description.

Denver Colfax Marathon Half Marathon 10M & Relay Results

Overview

The Half Marathon has your own personal safari with a mile segment through Denver Zoo, inside Denver Fire Station No. 1, by epic spots like the Capital and VooDoo Donuts, and past the dancing aliens.

Finish in Denver City Park with 50,000 new friends that includes your unique finisher medal, lunch, drinks, live band, picture opps, and more!

Course Description

Visit the race website for an up to date course description.

Past Results

Denver Colfax Marathon Half Marathon 10M & Relay Results