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Sun Oct

10

2021

BoulderthonĀ® 2021

Run the First-Ever Boulder Marathon with a Downtown Finish in the happiest, fittest city in the America! Finish on Pearl St Mall, with sweeping views of the Flatirons throughout. Celebrate after with a Post-Race Party on the Bricks!

All Teams > What Were We Thinking

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A group of misfits who make bad decisions. This being a big one....

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