2026 Colfax Marathon
Saturday, May 16, 2026 9:00 AM | Sunday, May 17, 2026 6:00 AM
The Colfax Marathon is Denver’s largest running weekend, and we are excited to be an official charity partner once again! That means, when you choose to run for Jeffco Prosperity Partners, you are helping us build a community without generational poverty.
Whether you're up for the challenge of the Marathon, Marathon Relay, Half Marathon, Urban 10 Miler, or 5K, there's a race to suit everyone's pace. Be part of the thrill and support a great cause!
Choose Your Race
Saturday:
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Colfax 5K: A great chance to be a part of Marathon weekend – at a much shorter distance. Strollers and dogs are welcome!
Sunday:
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26.2 Marathon: The Ultimate Urban Tour of Denver with epic sites: Empower Field at Mile High, Denver Fire Station #1, and Sloan’s Lake.
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13.1 Half Marathon: The course takes you by the Capitol, Civic Center Park, 16th Street Mall, and the Convention Center, with stellar Colorado mountain views.
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Urban 10 Miler: Features an epic run through Empower Field at Mile High, downtown Denver, Confluence, and Cherry Creek.
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Marathon Relay: Teamwork makes the dream work! Get a team of five together to run 26.2 miles in one of four relay divisions: Open, Corporate, Government, and Public Schools.
Experience the Colfax Marathon - In just one minute!
For questions about your registration, visit the Colfax Marathon website or email info@runcolfax.org.
How to Register
Running for a charity is easy, and there is no additional cost! Follow these simple steps to make your miles count:
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Visit the registration page and select the race you want to enter.
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Choose “Yes” when asked if you’d like to run/walk for one of the Charity Partners.
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Select Jeffco Prosperity Partners from the drop-down menu.
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Once you've registered, you can set up a personal fundraising page to make an even bigger impact!
Already registered? Log in to your Race Roster account, access your registration details, and select Jeffco Prosperity Partners as your Charity Partner.
For questions about your registration, visit the Colfax Marathon website or email info@runcolfax.org.
Make Your Miles Matter
Crossing the finish line is a huge personal achievement, but crossing it for a cause is a game-changer! You can turn your miles into impact by creating a personal fundraising page. It’s a great way to share your "why" and invite your friends and family to join our mission to end generational poverty.
How to set up your fundraiser:
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Visit JPP's Fundraising Team page and select "Join this Team."
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Set a fundraising goal. Every dollar you raise provides the “extra mile” of support that Jeffco families need to thrive.
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Add a photo and a personal message about why you’re running for JPP.
Colfax Marathon 2023-2025
Thank you, NREL!
In 2023, Jeffco Prosperity Partners attended the Colfax Marathon Award Celebration to honor the winning runners and relay teams. At the event, the National Renewable Energy Laboratory relay team presented the foundation with a $1,000 donation they won for placing third!
We are incredibly grateful to Aaron, John, Kim, Brent, and Norwood for choosing to support our mission! Their kindness, compassion, and dedication are truly commendable and their contribution will support JPP families who are making great strides to achieve economic stability.
A HUGE thank you to our champion race runners and relay teams who are ambassadors on and off the track for JPP:
Relay Team Captains: Stacy, Jill, Kym, Katelyn
Marathon Runners: Mary
Half Marathon Runners: Fordyce, Sophie, Maria, Juhyun, Dani
Urban 10 Miler Runners: Jereme
Colfax 5k Runners: Sarah, Logan, Sofia
We couldn’t do this work without you Jeffco! Thank you for your support!
Looking for more information? Visit the Colfax Marathon website.