September 30 - 12, 2017
This Event Took Place Fri. Sep 30, 2016

Human Potential LLC (HPRS) is committed to bettering, and expanding, the Ultrarunning Community. Our members are trail and ultra running enthusiasts based primarily in Colorado’s Front Range. Most of our members live in the Mountain West and adjacent plains states, though we do have members in all corners of the country.

HPRS is best known for it’s winter Fat Ass Series, which is the largest and most attended Fat Ass Series in the world. You are not required to be a member to join one of our Fat Ass Runs, though you are required to be a member to reap the full benefits associated with the Fat Ass Series.

Details about our membership can be found on our website at:

We ask that you please also read the fine print. Membership Sales for 2018 opens on October 1, 2017 and your 2018 membership will expire on 10/31/2018.

Local time: 6:01 AM

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