• Boulderthon offers Early Bib Pickup (open to all) beginning Saturday, 9/20/25 through Thursday, 9/25/25 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 9/28/25.
• Our Official Expo & Bib Pickup will take place on Pearl St Mall between 14th & 15th, on Friday, 9/26/25, from 2pm-6pm, and Saturday, 9/27/25 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 support@boulderthon.org

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 uber.com/uberone

2. Carpool with our partner, TreadShare

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

Steps

• Download the App 

• Create a profile

• Book a ride or post a drive in just a few clicks to Boulderthon

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!

• Gear Check is available at the start
• Gear Check bags will be available at Gear Check
• We will transport anything you put in your Official Gear Check Bag to the Finish Area for you.
• Please plan for chilly weather! Colorado can be chilly in late September, with lows of 40 degrees in the morning. Plan on extra layers and check them into your Official Gear Check Bag.

• There will be port-a-potties on course. Please respect our community and utilize these for your needs.

Hydration

• Water & Hydration Stations will be staggered approximately every 3-4 miles. Specific locations on map to come.

  
  

Nutrition

• Neversecond, the Official Energy Gel of the 2025 Boulderthon, will be available at our pre-race fueling station before the race, and 3 additional stations on course. Please see maps for specific locations.

  • Neversecond energy gel is changing how runners fuel - delivering steady, long-lasting energy that's easy on the stomach. C30 Energy Gel features fast-absorbing carbohydrate and 200mg of sodium, with an exceptionally low risk of gastrointestinal distress.

Medical 

• A number of highly trained physicians, nurses, physical therapists and other medical personnel will be on hand throughout race weekend.
• There will be a number of mobile units moving throughout the course. These units will be staffed by paramedics, EMTs and marathon staff.
• There will also be ambulances stationed at the finish line and throughout the course.

• Cheer runners on at the Finish! First 250 spectators will get cowbells. Join the fun at Pearl & 15th St, including our first-of-its-kind finish at the Pearl Street Mall!
• You can also cheer runners on throughout the course at any of our Hydration Stations!
• In addition, our Xcel Power-Up Cheer Stations information is coming soon!
• Our Official After Party will be at Avanti. Soak in the best views in town at their roof deck and celebrate your amazing accomplishment!