Denver's Colfax Marathon

09/16/2026

A little encouragement from Colfax 🤩

You don’t have to have it all figured out.
You just have to keep moving forward.

You got this!

09/15/2026

26.2 miles. One team. 🏃‍♀️🏃‍♂️

Take on the Colfax Marathon together and make race day a team experience.

👟 Build your crew.
🏁 Split the miles.
🎉 Celebrate the accomplishment together.

Ready to relay? Register your team at https://www.runcolfax.org/races/marathon-relay/

09/14/2026

It’s kickoff day in Denver! 🏈
https://www.runcolfax.org/races/marathon-3/

While the Denver Broncos get ready to take the field, we’re throwing it back to some of our favorite moments on the field - Colfax runners taking on Mile High Stadium!

Nothing like a little stadium magic on the marathon course 🏟️

09/13/2026

Looking for your next 5K? Start here. 🏃‍♀️

🔥 Chase a PR on a chip-timed course
👟 Bring the whole crew with a stroller-friendly start wave
🎧 Celebrate with a post-race DJ party
🏙️ Experience the energy of Marathon Weekend
🏁 Make race-day memories with Denver’s running community

Ready to join us? 🏃‍♀️💨
➡️ Sign up at https://www.runcolfax.org/races/colfax-5k/

09/12/2026

Thank you to all the runners that enjoyed the unique experience of running the runway of a major airport!
We always enjoy celebrating you, the community, and all of your goals!

09/10/2026

🏙️ 10 miles through the heart of Denver.

Run inside Empower Field at Mile High, through downtown Denver, along Confluence and Cherry Creek, and finish the day with a celebration in City Park🏁🎉

10 miles. Iconic sights. Big race-day energy.
➡️ Make the Urban 10 Miler your next race! RunColfax.org

09/09/2026

Being a runner means having questions that only Google can answer 😂

“How much should I eat before a long run?”
“Why are my legs sore three days later?”
“Is this normal after running 10 miles?”
We’ve all been there. 👀

What’s the most random thing running has made you Google?

09/08/2026

This Saturday runners take to the runway at Denver International Airport for only the 2nd time!

The 5K On The Runway is scheduled for Saturday, Sept. 12, when runners will gather at 7 a.m. for a sunrise 5K on a runway at the Denver International Airport.

09/08/2026

Your first race should be exciting - not stressful

A little preparation can go a long way. From tapering and fueling to knowing the course and race-day logistics, avoid these common mistakes and set yourself up for a great race.

And veteran runners, we want to hear from you: What’s the one piece of advice you’d give a first-time racer? 👇

09/07/2026

Would you rather? 👀🏃‍♀️

A marathon is already a challenge… but which would make it harder?
No spectators cheering you on OR no aid stations along the way? 😅

Drop your choice below 👇