<linearGradient id="sl-pl-triple-spinner-svg-grad01" linear-gradient(90deg, #ff8c59, #ffb37f 24%, #a3bf5f 49%, #7ca63a 75%, #527f32)
0%
Loading ...
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today
  • Top 10 in America – USA Today

10K Presented by cheribundi

9.27.26

WELCOME TO THE BOULDERTHON 10K PRESENTED BY CHERIBUNDI

Cheribundi’s All-Natural Tart Cherry Juice & Concentrates are scientifically proven to reduce inflammation, provide better sleep, and help you recover faster. 

Recommended by Sports Dieticians, and trusted by over 475+ Professional & Collegiate Sports team and Runners & Endurance Athletes across the country, Cheribundi champions the path forward with all-natural recovery. 

  • Reduce inflammation: Antioxidant-rich tart cherries help repair exercise damage and protect against oxidative stress.

  • Improve sleep: Natural melatonin helps regulate sleep and supports deeper, better rest.

  • Recover faster: Better sleep and reduced inflammation help your body recover more efficiently

Boulderthon 10k Marathon

Date: Sunday, September 27th 2026

Start Time: 7:00am

 

 

RUN BOLD, RUN 10K

A fun, fast 10K through Downtown Boulder with scenic streets and an unforgettable finish on Pearl Street Mall -part of the largest running weekend in the U.S.