Bad Ass Backyard Ultra - Rio Linda, CA

The Bad Ass Backyard Ultra, held at Dry Creek Parkway in Rio Linda, CA, is a unique running event where participants complete 4.16-mile loops within one hour. Runners must be ready at the start corral for each new loop, which begins on the hour. The event, originally a casual gathering in 2023, became official in 2024 through a collaboration between Skybreaker Racing and Auburn Area Trail Runners, and is now part of the Singletrack Running series.

Participants have the opportunity to qualify for national and world championships, making it a competitive and exciting challenge for endurance athletes. Visit the organization's website for the most recent information.