Join the 45th running of Colorado’s biggest and boldest Memorial Day tradition, May 26, 2025.
We’ve got 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.
BOLD SQUAD for Kids
Includes a training program, training tracker and swag included their race packet, and Medals to be handed out on Race Day! Learn more ->
JOIN THE 45th BB10K MAY 26, 2025
OH YES YOU CAN!
All Registration Packages Include:
- Official BB10K Shirt – your choice!
- Race Bib & Official 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
- Stadium Entry for Memorial Day Tribute
- RaceDay Expo Entry
Short Sleeve
Standard PackageIncludes Entry, Short Sleeve Shirt, Race Bib & Official Timing Chip, and Snack Bag & Drink
$54
- Youth 14 & Under
$59
- Seniors 65 & Older,
- Active & Reserve Military
Long Sleeve
PackageIncludes Entry, Long Sleeve Shirt, Race Bib & Official Timing Chip, and Snack Bag & Drink
$64
- Youth 14 & Under
$69
- Seniors 65 & Older,
- Active & Reserve Military
Tech Tee
Performance PackageIncludes Entry, Tech Shirt, Race Bib & Official Timing Chip, and Snack Bag & Drink
$69
- Youth 14 & Under
$74
- Seniors 65 & Older,
- Active & Reserve Military
BOLDER Package
All 3 ShirtsIncludes Entry, All 3 Shirts, Race Bib & Official Timing Chip, and Snack Bag & Drink
$84
- Youth 14 & Under
$89
- Seniors 65 & Older,
- Active & Reserve Military
Sea Level is for Slackers 5,391 ft
Add-On ShirtA new take on the classic “Sea Level is for Slackers”
+ Ultra-Soft Cotton/Poly Blend
Limited Edition BB10K Flatirons
Add-On ShirtAdd this to your package before they sell out.
+ Ultra-Soft Cotton/Poly Blend
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.
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.
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.
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!
Feet Above Sea Level
2024 Participants
Spectators
Kilometers of Heaven
THIS IS A 10K DONE YOUR WAY.
Your race. Your pace.
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 ->
