Boulderthon Kids Run in Boulder, CO

Join us on Sunday, September 29th, 2024 for the third-annual Boulderthon Kids Fun Run in Boulder, Colorado. The course starts at 21st and Pearl and ends with an incredible finish on the historic Pearl Street Mall! The Boulderthon is the perfect introduction to racing for your little ones! Parents can run for free with their child! 


Boulderthon Kids Run

Register now for the Boulderthon Kids Run! Parents can run for free with their kids!

Boulderthon also offers a 5k, 10k, Half Marathon and Full Marathon.

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Date: Sunday, September 29th, 2024

Start Time: 9am

Event Day

  • Boulderthon offers Early Bib Pickup (open to all) beginning Saturday, 9/22/24 through Thursday, 9/26/24 at 2pm at all Colorado Fleet Feet locations during their normal hours.
  • Finisher Shirts will not be available at Early Bib Pickup. Participants who pick up their packet at Early Bib Pickup can pick up their race shirt after they complete their race on Sunday 9/29/24.
  • Our Official Expo & Bib Pickup will take place on Pearl St Mall between 14th & 15th, on Friday, 9/27/24, from 2pm-6pm, and Saturday, 9/28/24 from 10am-6pm.

This year, Boulderthon features its first-ever Start and Finish Downtown.

Our Start Village is hosted on the Pearl Street Mall, between 13th and 15th.

The Start Line is at 21st and Pearl. The Finish is at 15th and Pearl. 

Here are the best ways to get to the Start.  For questions, please contact

1. Take an Uber

Use Our Designated Uber Drop Off Lanes

Please enter address 1400 Walnut St, Boulder CO 80302 into Uber (the start of the Drop Off Lanes) to Uber to the Start Village Presented by Uber.

*Note- please use these lanes for all runner drop off.

Try Uber One Membership with a Free 3-Month Trial

$0 Delivery Fee and up to 10% off eligible orders, plus 6% Uber Cash back on eligible rides.

Click link for terms & sign up now.

Terms apply. See

2. Carpool with our partner, TreadShare

Embrace sustainability and community spirit by carpooling with TreadShare to Boulderthon!


  • Download the App 
  • Create a profile
  • Book a ride or post a drive in just a few clicks to Boulderthon
  • Earn $5 for completing a carpool - redeem by sending the promo code: BOULDERTHON to after completing one ride or drive by 11:59pm MDT on 10/8/23.

Reduce your carbon footprint, ease congestion, and make a positive impact on the event's accessibility!

3. FREE Parking!

Please reference our FREE Parking Garage Map.

Please note, these garages will fill up first and we suggest arriving at least 2 hours prior to the Start.

All parking is FREE in Downtown Boulder on Sundays. See below for the best places to park!

There is no gear check for the Kids Run.