Bad Ass Backyard Ultra - Rio Linda, CA

The Bad Ass Backyard Ultra, held at Dry Creek Parkway in Rio Linda, California, is a unique running event where participants complete 4.16-mile loops within one hour. Runners must be ready to start each new loop on the hour, and those who fail to do so are eliminated. Originally created in 2023 as a casual event, it has since become an official race under the collaboration of Skybreaker Racing and Auburn Area Trail Runners.

This event is affiliated with the Backyard Ultra series, allowing participants the chance to qualify for national and world championships. Visit the organization's website for the most recent information.