Register now to save with Early Bird Pricing! New in 2022: 5k, 10k + Kids Run.


Boulderthon® has established an athlete elite program to bring world-class athletes in from our own backyard, to runners from all over the globe with special incentives. If you are male with a Marathon PR of 2:40 (Half: 1:10 PR) or female with a Marathon PR of 3:15 (Half: 1:25 PR), please contact us at for more information, and include a link to your PR.