Bad Ass Backyard Ultra - Rio Linda, CA
Rio Linda, United States • 28 Mar 2026
Event
Bad Ass Backyard Ultra is a backyard ultra-style running event scheduled for March 28, 2026, at Dry Creek Parkway in Rio Linda, California (northern Sacramento). The event is listed as a Backyard Ultra and is organized through a partnership that currently places it under the Singletrack Running umbrella.
Format and affiliation
Runners complete repeated loops of 4.16 mile distance. In the traditional backyard ultra format used here, each new loop begins every hour and runners must be in the start corral, ready to begin the next loop at the hour mark to remain in the race. The competitor who completes the most loops wins.
B.A.B.U. began in 2023 as a fatass event, became an official collaboration in 2024 between Skybreaker Racing and Auburn Area Trail Runners, and is now affiliated as a Backyard event. Affiliation makes runners eligible for selection to a National Team for the Satellite Team Championships and for the World Individual Championships at Big's Backyard in Tennessee. Early registration has opened, but permits had not been secured at the time of listing; in the event permits cannot be issued, early registrants will receive a refund. Visit the organization's website for the most recent information.