We’re turning 40 Years Bold!

And we’re getting bolder all the time. 2018 will be an epic year for us and the city of Boulder. We can’t wait to celebrate with you. Help us out by tagging your best BB10K photos with #40YearsBold on Instagram, Facebook or Twitter. You can also share them here.

America's All Time Best

We’re proud to be honored by Runner’s World, but you make this the best 10K!

Race, Run, Jog or Walk

We want you to have the time of your life racing the streets of Boulder, Colorado. Learn more. 

CU Stadium Finish

Finish your 10k in the beautiful and roaring stadium at Folsom Field. Learn about CU’s clear bag policy.

Memorial Day Celebration

You and 120,000 of your closest friends make this a truly unforgettable event. Learn More.

The Perfect Wave Start

We invented and perfected waves for you to go your pace and finish strong. Learn more. 

Endless Entertainment

We pack the course so you never quite know what’s around the corner. Learn More.

Feet Above Sea Level

2017 Participants


Kilometers of Pure Heaven

The Biggest & Best Memorial Day Celebration

We’re not sure when or how it happened, but somewhere along the way our little run turned into an event of epic proportions.
We like to think it’s part race, run, jog, walk, parade, celebration and tribute. We made it for everyone. Oh yes you can!


Stay for the largest Memorial Day Tribute in the U.S. The ceremony to honor all of those who have served our country is the grand finale.

Pro Race

Watch some of the world’s elite runners finish at Folsom Field as they compete for the biggest 10k prize purse in the world.

BB Course

The Flatirons are your backdrop as you wind through Boulder’s neighborhoods and downtown about a mile above sea level.


The course is packed with dancers, music and much more. You like bacon? Waterslides? Hula Dancers? Us too.

Skydivers & Flyover

Awe inspiring. Hair raising. Goose bumps. Every single time.

BB Expo

After you finish, head over to the Expo for great food and drink samples, and tons of other schwag.

We’ve Got Your Back

No hidden fees!

That’s right.

We’re different. We know how you like to be treated. We are committed to TranspaRUNcy around our events.

Learn more.

Can’t make it?

No problem!

If you sign up and can’t participate, you can roll your registration to next year’s BolderBOULDER for only $15.

Learn more.

Registration Pricing

Registration prices increase May 14! The sooner you register the more you save.

BB10K Video

Want a little taste of what it’s like to be part of #BoldNation?

What are you waiting for? Be Bold.

BolderBOULDER 2018 Countdown.









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We Couldn’t Do It Without Our Partners

Danone Wave

Our Official Lunch Bag Sponsor


Our Bank has been keeping Coloradans financially fit since 1963.

King Soopers

Our Official fuel-up center for training and your perfect 10K.