Run Denver’s Marathon

It’s the Ultimate Urban Tour of Denver with epic sites.  Start and finish in Denver’s City Park. Run through Empower Field at Mile High – twice! Run through Denver Fire Station #1, along seven miles of rivers, lakes and bridges – including Sloan’s Lake. Race through eclectic neighborhoods, historic Lakewood, the bustle of Colfax Avenue, and downtown Denver – with views of the majestic Rocky Mountains!

This is one for the bucket list!   The Colfax Marathon is a Boston Marathon qualifier race.

Video and Virtual Photo Tour

Our 30 second video tells all!  Click here to check out the Colfax Marathon.  Cruise to the bottom of the page to take a virtual photo tour of the sites on the course!

Great Medal and GIfts!

Great schwag for you!  Yes, terrific tech shirts and medals!

Click to see the 2024 medal details.   Click to see the 2024 race shirt.

And there is more!  Mini medallions, car decals, free runner photos, and runner tracking.  And, the awesome festival in City Park with food and beverage lakeside in City Park.

Awesome Race Shirt

Click HERE to see your race shirt!

Colfax Double Marathon Challenge

It’s back for the 3rd year!  We are issuing a challenge to all the marathon runners in the world … run 26.2 miles at a marathon race January 1, 2024 to May 18, 2024, and our full marathon on May 19, 2024.  You get a sweet gift and bragging rights that you can run 26.2 anywhere including Denver at a mile high.  More scoop here.


Set a new event record, win $1,000.  Set a new state record, win an additional $1,000.  See the times to beat.  Age group awards are great keepsakes!  Overall and masters awards are based on gun time (1st, 2nd, 3rd).  Age group awards are by chip time (1st, 2nd, 3rd) in categories: 19 & under, 20-29, 30-39, 40-49, 50-59, 60-69, 70+.

Run for Charity

Run for one of the largest Charity Partner programs in the country!  Over 200 charities participate each year.  Choose a charity to run for when you register, and they will contact you.

Packet Pick Up & Race Day Logistics

Pick up Race Packets Friday and Saturday before the race at the Cigna Denver Colfax Marathon Expo.  No Race Day Packet Pick Up.  Detailed race day logistics and RACE DAY HINTS will be published early May.

Photo Tour

Hover over each photo to learn fun facts!