Bigs Backyard Ultra 2025. If you have questions about an event, please contact the organizer or race timer. See the backyard ultra website for more info on the format and event requirements.


Bigs Backyard Ultra 2025

Backyard ultra is a form of ultramarathon race where competitors must consecutively run the distance of 6706 meters (4.167 miles) in less than one hour. Backyard ultra is a form of ultramarathon race where competitors must consecutively run the distance of 6706 meters (4.167 miles) in less than one hour.

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