GMR Backyard Ultra
Golden, United States • 23 May 2026
Event Overview
The GMR Backyard Ultra is a distance running event held in Golden, Colorado. This race follows the traditional backyard format where participants run one lap every hour on the hour until only one runner remains. Runners have the flexibility to finish their lap quickly to maximize rest time or maintain a slower pace to conserve energy.
Distance and Course
Participants complete a 4.17 mile lap during each hour of the event. The race is designed to accommodate various goals, allowing individuals to complete a single lap or continue until they reach ultramarathon distances.
Participation Details
The event is capped at a total of 60 registered participants. The registration fee covers essential infrastructure including:
- Aid station supplies
- Participant awards
- Temporary restroom facilities
Beneficiary Information
A portion of the event proceeds supports the Sun Valley Kitchen and Community Center. While there is a standard registration fee, a separate minimum donation to this non-profit organization is also recommended for all entrants. Visit the organization's website for the most recent information.