Estes Park's Backyard Ultra

The Estes Park Backyard Ultra is an endurance running event held along the scenic Lake Estes, supporting Childcare and Family Services. Participants run a 4.252-mile course on a paved bike trail, completing a lap every hour until only one runner remains. The race features no predetermined end time, continuing until all but one runner drop out.

Runners are challenged to complete each lap within an hour, with the course including elevation gains. All participants receive event swag, including a custom hat and awards for finishers or those who do not finish. The event promotes community, endurance, and outdoor enjoyment in a beautiful mountain setting. Visit the organization's website for the most recent information.