Bear River Backyard Ultra

Bear River Backyard Ultra

The Bear River Backyard Ultra is a Backyard Ultra event held in Delmar, Iowa on November 13, 2026. It uses a loop format in which participants complete a 4.16 mile loop every hour, on the hour, until only one participant remains.

The course is located on Tubbs Farm directly behind The 61 Drive-in Movie Theater at 2173 Hwy 136, Delmar IA 52037. Each participant receives a 10x10-foot camp space to set up a personal aid station. Participants may bring 1 to 3 crew members to assist them during the event.

All registered runners receive a custom Bear River Backyard Ultra hockey sweater at packet pickup. The top male and top female finishers receive cash prizes, with prize amounts determined by total registration numbers.

Registration is listed as $200 and is capped at 250 participants. Food and beverages are provided during the event; participants may bring additional supplies or nutrition for themselves. Registration closes November 5.

The format emphasizes repeated hourly loops and on-site support spaces rather than fixed distance finish lines. The event is organized as an in-person race in Delmar, IA. Visit the organization's website for the most recent information.