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June 1, 2025 Directions
13.1 Miles of Million Dollar Views!
Collector T-Shirt!
13.1 Finisher Medal!
Countdown to Race Day



$55 6:30AM MDT Price increases after July 31, 2024 at 11:59pm MDT
Open to ages 14+.


$35 6:40AM MDT Price increases after July 31, 2024 at 11:59pm MDT


$25 6:40AM MDT Price increases after July 31, 2024 at 11:59pm MDT


The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race! 
Seasoned runners and first-timers alike appreciate the excellent communication from the 13er race crew who make this event accessible for athletes of all levels.


Join us for this exceptionally scenic, looped 13.1 course which runs through gorgeous Louisville, Colorado!

We designed this course so that you can enjoy all of the spectacular views of the Flatirons that Colorado has to offer. Come see for yourself!

Groups/Teams/Families: Save $5 per person for groups of 5 or more! See our FAQ page for more questions! 

Click the drop-down menu under "race info" for all race details! Any questions, please email us at


Here's the good stuff!!
- 10 water station passes
- 5 port-a-john passes
- 9 miles of FLAT, crushed gravel
- nearby, free parking
- spectator friendly
- 13.1 finisher medal
- 10k or 5k options available
- iced towels at the finish line
- gender-specific performance tees for every registrant
- chip timed with texted results
- live, real-time results posted online
- 13.1 miles of million-dollar views AND
- the amazing sense of accomplishment you can only get from running 13.1! (or 5k or 10k!)


Home Depot
1200 Dillon Road
Louisville, CO 80027

Race Contact Info

If you have any questions about this race, click the button below.

Charity Partner

At every 3W Races event, we partner with a hyper-local charity. For the Colorado 13er event, we are excited to partner with Community Food Share!

"At Community Food Share, we’re more than a food bank — we’re a neighbor and a friend who’s been part of the fabric of Boulder and Broomfield Counties for decades. We know that ending hunger in our communities requires collaboration. That’s why we not only provide food directly to families, seniors, students, and others, but we’re also a hub — delivering millions of pounds of food a year to local partners to reach people in their communities. Because when we work together, we give more people access to fresh, nutritious food."

For every $1 donated to Community Food Share, you are able to provide 3 meals

You can donate to Community Food Share online HERE. The money donated through our portal goes directly to them. You can also bring in-kind donations on race day to be entered into an exclusive raffle for prizes from 3W Races and our sponsors. More info HERE.

Give Your Shoes Another Life!

We are proud to partner with Sneakers4Good! When you donate your gently used or new athletic shoes, a donation is made to our ongoing charity partner, Growing Home!  Click here for more info


All participants receive a performance blend, short-sleeved tee - gender-specific sizing available. 13er FINISHERS receive a collector's finisher medal!



Home Depot
1200 Dillon Road
Louisville, CO 80027

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