In order to use RunSignup, your browser must accept cookies. Otherwise, you will not be able to register for races or use other functionality of the website. However, your browser doesn't appear to allow cookies by default.
If you still see this message after clicking the link, then your browser settings are likely set to not allow cookies. Please try enabling cookies. You can find instructions at https://www.whatismybrowser.com/guides/how-to-enable-cookies/auto.
New Date: 11/1/2020
As of 4-28-20, due to COVID-19, our annual Colorado 13er event will be POSTPONED to November 1, 2020. This is our best option to keep the race going this year with certainty.
You have a few opportunities to participate, see below. Please click the option that is best for you! If you have any questions on what a virtual race may entail, see our virtual FAQ page.
Questions are always encouraged at info@Colorado13er.com
We know that you all love this iconic event and its unique course with spectacular views and can't wait to race with you in November!
Whitney, Race Director
Join us in the 9th year of this exceptionally scenic, looped 13.1 course which runs through gorgeous Louisville, Colorado!
A half marathon is no joke! 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.
Both MEN and WOMEN are invited to this event!
Additional race information can be found at http://colorado13er.com/index.html.
Make sure you download the RaceJoy mobile app for live phone tracking at the Colorado 13er (Half Marathon/10k/5k).
Carry your phone and use RaceJoy to add to your race experience with these key features:
The Colorado 13er (Half Marathon/10k/5k) is sponsoring RaceJoy to provide participants and spectators these features for free (normally a 99 cents upgrade fee for both the participant and spectator).
Like this page and invite your friends on Facebook.
Opt in to learn more about the best Colorado local running events