Registration for Boulderthon 2023 is now open! After nearly tripling in size and selling out last year, Boulderthon has instituted a new 5,000 runner cap and is expected to sell out again this year. Register today.
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aerial view of Boulder roads

REGISTER

KIDS RUN

Registration for the second annual Boulderthon Kids Run
Finisher Tech T-Shirt
Limited Edition Finisher Medal
Flexible Refund Policy: Cancel up to 60 days prior to the event, no questions asked
SELECT PACKAGE

5K

Registration for the second annual Boulderthon 5k
Finisher Tech T-Shirt
Limited Edition Finisher Medal
Flexible Refund Policy: Cancel up to 60 days prior to the event, no questions asked
SELECT PACKAGE

10K

Registration for the second-annual Boulderthon 10k
Finisher Tech T-Shirt
Limited Edition Finisher Medal
Flexible Refund Policy: Cancel up to 60 days prior to the event, no questions asked
SELECT PACKAGE

HALF MARATHON

EARLY BIRD PRICING

Save $20 by the end of the month!
Registration for the third annual Boulderthon®, the Signature Boulder Half Marathon Series
Finisher Tech T-Shirt
Limited Edition Finisher Medal
1 Free Beer
$10 Gift Card to Fleet Feet (any Colorado location), as well as Fleet Feet's Pre-Race & Post-Race Expo Booth on the Pearl St Mall. No minimum.
Flexible Refund Policy: Cancel up to 60 days prior to the event, no questions asked
SELECT PACKAGE

VIP RUNNER

All of the above, plus:
VIP Packet Pickup
Because-You’ve-Earned-It Recovery Massages
Unlimited Hydration & Coffee Bar Post-Race
Unlimited VIP Breakfast including Fresh Bagels, Cold-Pressed, Organic Juice, and Hot Coffee
No Line/No Wait Toilets at the Start
Run Fast & Save! Start your Boulderthon® streak! Chance to beat your goal - submit your PR, and if you beat it, you’ll get 50% off next year’s race*
$10 Gift Card to Whole Sol Blend Bar at the Twenty Ninth Street Mall, Boulder’s only USDA Organic Certified Juice & Smoothie Bar
SELECT PACKAGE

FULL MARATHON

EARLY BIRD PRICING

Save $20 by the end of the month!
Registration for the third annual Boulderthon®, the Signature Boulder Marathon Series
Finisher Tech T-Shirt
Limited Edition Finisher Medal
1 Free Beer
$10 Gift Card to Fleet Feet (any Colorado location), as well as Fleet Feet's Pre-Race & Post-Race Expo Booth on the Pearl St Mall. No minimum.
Flexible Refund Policy: Cancel up to 60 days prior to the event, no questions asked
SELECT PACKAGE

VIP RUNNER

Save $30 by the end of month!
All of the above, plus:
VIP Packet Pickup
Because-You’ve-Earned-It Recovery Massages
Unlimited Hydration & Coffee Bar Post-Race
Unlimited VIP Breakfast including Fresh Bagels, Cold-Pressed, Organic Juice, and Hot Coffee
No Line/No Wait Toilets at the Start
Run Fast & Save! Start your Boulderthon® streak! Chance to beat your goal - submit your PR, and if you beat it, you’ll get 50% off next year’s race*
$10 Gift Card to Whole Sol Blend Bar at the Twenty Ninth Street Mall, Boulder’s only USDA Organic Certified Juice & Smoothie Bar
SELECT PACKAGE
BOULDERTHON®
A STRONGER FASTER BOULDER CO. PRODUCTION

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© 2023 Stronger Faster Boulder Co.

Boulderthon is a Boston Marathon Qualifying (BQ), USATF Sanctioned Event, measured by a Level A USATF Course Measurer, representing the highest level of certification for a marathon race series.

Based in Boulder, Colorado, Stronger Faster Boulder Co. is a Colorado non-profit organization and federally-recognized as a 501(c)(3) tax-exempt foundation, EIN # 84-2863972. Donations and contributions are tax-deductible as allowed by law.