Denver Colfax Marathon

2026 Half Marathon

21.1 km Road 🇺🇸 Denver, United States of America
When
May 17, 2026
Starts at 6:30am MDT
Weather
☁️ Cloudy · 9°C–23°C
Last Year's Race · Wind 12 km/h
Registration
Open Now
Closes May 13, 2026
Event Details

You’ll experience vibrant Colfax with iconic spots like VooDoo Donuts, and Cathedral Basilica. The course also takes you by the Capitol, Civic Center Park, 16th Street Mall, Convention Center, with stellar Colorado mountain views. While you’re running through downtown, you’ll run through Denver Fire Station #1 and get high-fives by a row of firefighters. This is the only race in the country with a fire station run-through!

New in the Zoo! A runner favorite, we’ll be changing the epic zoo mile this year as construction will be completed on the Down Under exhibit. The new zoo mile will be more streamlined and wider for runners. You’ll watched by rhinos, elephants, monkeys, giraffes, lions, penguins and more. The Denver Colfax Half Marathon is the only race to run through Denver Zoo! We’ll be posting the new zoo mile this winter.

The homestretch will be running along 17th Street, then 17th Avenue, passing restaurants and historic buildings, before entering Denver’s beautiful City Park for a great after party on the lake with over 25,000 new friends.

Event type
Half-Marathon
Distance
21.1 km
Surface
Road
Registration opens
April 12, 2026
Registration closes
May 13, 2026
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