Bad Ass Backyard Ultra Rio LInda, CA   Mar 28, 2026

Hee-Haw! The Bad Ass Backyard Ultra takes place at Dry Creek Parkway, in Rio Linda, California (northern Sacramento).

In the traditional style, runners will have one hour to complete each 4.16 mile loop. Each new yard (loop) will begin every hour, on the hour. If a runner is not in the start corral, ready to begin the next yard, on the hour mark, they’re out. The runner who completes the most yards wins.

B.A.B.U. was originally created in 2023 as a fatass event. In 2024 it was made an official event as a collaboration between Skybreaker Racing and Auburn Area Trail Runners. Today, while the event is still put on by the same organizers, through partnership, B.A.B.U. is now under the Singletrack Running umbrella.

B.A.B.U. is now officially an affiliated Backyard event. This means that as a runner of this event you will be eligible to earn a spot on a National Team for the Satellite Team Championships and the World Individual Championships at Big’s Backyard in Tennessee!