Huron 100

The Huron 100 is an endurance running event taking place on June 7, 2025, in the Waterloo State Recreation Area, Grass Lake, MI. Participants can choose between a challenging 100-mile race or a 50-mile option, both traversing the scenic Huron River Watershed. The 100-mile course features 82% trails and significant elevation gain, with 14 aid stations available.

The 50-mile race offers 8 aid stations. Runners will receive awards for completing their respective races within the designated time limits, and all participants will receive event merchandise. Proceeds from the event support the protection of the Huron River Watershed. Visit the organization's website for the most recent information.