Boulderthon

Boulderthon Run a Marathon in the Happiest City in the US! Boulder Marathon, Half, 10k, 5k!

05/30/2026

🎨 Excited to host our second volunteer opportunity, where we painted the handball wall, a shed, and de-weeded at ’s Tom Watson Park. We’re so grateful to the community for the opportunity and to our volunteers for making it happen. See you next time! 👋

05/27/2026

You never know someone’s “why”. We’re here for all of them. 💪🏼

05/27/2026

The finish line effect: exhaustion, relief, joy… and that moment when it all hits at once.
⠀⠀⠀⠀⠀⠀⠀⠀⠀
We can’t wait to see you there.

05/26/2026

Race mornings, sunrise miles, and that quiet pre-start energy, it’s all part of the experience here.
See you in Boulder. 🏔️

05/06/2026

We’re not like other races, we’re a cool race 💁‍♀️

05/01/2026

Have no shame in your pace game 🏃🫶

04/29/2026

Boulderthon 2026, hallelujah 🙌

04/16/2026

Early mornings, mountain views, and a race you’ll never forget. 🏔️🏃‍♂️

03/24/2026

Send this to someone who’s been thinking of running a race this year 💌

03/12/2026

Which race are you doing this year? Comment below, let’s get hyped 👇🏼

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