Bad Ass Backyard Ultra - Rio Linda, CA

The Bad Ass Backyard Ultra, organized by Skybreaker Racing in collaboration with Auburn Area Trail Runners, is a unique running event held at Dry Creek Parkway in Rio Linda, California. Participants must complete a 4.16-mile loop within one hour, with new loops starting every hour on the hour. Runners who fail to start on time are eliminated, and the winner is the last person standing who completes the most loops.

This event, which began in 2023, emphasizes endurance and strategy, making it a challenging experience for all participants. Unique event t-shirts and awards for winners are also part of the experience. Visit the organization's website for the most recent information.