Join us Memorial Day, May 25, 2026 for Colorado’s biggest and boldest tradition.

Our 10K has perfect waves for walkers, joggers and racers. 

“America’s All-Time Best 10K”

We’re honored by Runner’s World Magazine, but our participants and spectators are what make the BOLDERBoulder the best 10K in America!

Finishing at CU

Cross the finish line inside Folsom Field with tens of thousands of people cheering you on. Then watch the Pro Race finish and grand finale Tribute.

Largest Memorial Day Tribute

One of the largest Memorial Day Tributes in the U.S. The ceremony honors all of those who have given their life in military service to our country.

 MEMORIAL DAY  MAY 25, 2026

TAKE ADVANTAGE OF EARLY REGISTRATION PRICES WHILE YOU CAN 

Registration Includes:

  • Official BB10K Shirt – your choice!
  • Official Race Bib & Timing Chip
  • Snack Bag & Drink (21+ get a free beer sample from Avery)
  • Two Week Trial of the Runna Training App
  • Stadium Entry for Pro-Race Finish & Memorial Day Tribute
  • RaceDay Expo Entry

Short Sleeve Package

$64

Adults

$54

Ages 65+ &
Active Military

$49

Ages 14
& Under

Men’s, Women’s & Youth

Long Sleeve Package

$74

Adults

$64

Ages 65+ &
Active Military

$59

Ages 14
& Under

Men’s & Women’s

Tech Tee Package

$79

Adults

$69

Ages 65+ &
Active Military

$64

Ages 14
& Under

Men’s & Women’s

BOLDER Package

$94

Adults

$84

Ages 65+ &
Active Military

$79

Ages 14
& Under

One shirt from each package.

Sea Level is for Slackers

$25

Option to add to packages.

Limited Edition

$25

Option to add to packages.

Retro Shirt

$25

Add on option. Updated the 2003 design to celebratr the US 250th and Colorado 150th anniversaries.

CU Wave

$10

Option to add on for those who join the CU Wave. Learn More >

Endless Entertainment

The course is packed full of energy with dancers, music and entertainment around every corner. You like bacon? Waterslides? Hula Dancers? Us too.

Majestic Skydivers & Flyover

Awe inspiring. Hair raising. Goosebumps. Every single time. 

Beautiful Boulder, CO!

The course, over a mile above sea level, winds through Boulder’s neighborhoods, downtown and finishes at the University of Colorado Stadium.

Bold Squad for Kids

14 and under are automatically in this special program. Includes a training plan, Finisher Medals on Race Day, and more! Learn more >

Business Challenge

Rally your coworkers, lace up those sneakers, and bring your A-game! Awards for highest participation and fastest teams and individuals. Learn more >

The Perfect Wave Start

We invented the wave start in 1983 to space everyone out and put similar speeds together, so you can go your pace and have the time of your life.

Epic International Pro Race

The International Invitational: watch some of the world’s best runners compete at Folsom Field for one of the largest prize purses in the world.

Massive BB Expo

Head over to the Expo after you finish for great food and drink samples and tons of other schwag from our sponsors.

 MEMORIAL DAY COUNTDOWN! 

THIS IS A 10K DONE  YOUR WAY.   

Your race. Your pace.

2025 Registrants

Feet Above Sea Level

Spectators

Countries Represented

We’ve Got Your Back

Your Bolder GuaRUNtee.

If you sign up for the BOLDERBoulder and don’t participate, we will roll your registration over to next year’s BOLDERBoulder for $30.

Learn more ->

No hidden fees.

We know how you like to be treated. We are committed to transparency and no hidden fees.

Learn more ->

Runners Roost

Official Presenting Sponsor

NIKE

Official Running Footwear and Running Apparel

Avery Brewery

Official Beer

King Soopers

Official Snack Bag & Grocer

AAA

Official Insurance

Photo credits: Glen Delman, John Wark, Jan McLoughlin, John Klein, Vanessa Cote, and Gameface Media