Sole Survivor Backyard Ultra - Richland, WA

The Sole Survivor Backyard Ultra in Richland, WA, is a unique endurance running event inspired by the "Big's Backyard Ultra." Participants run a 4.16-mile loop every hour until only one runner remains. This challenging format emphasizes mental toughness over speed, with the last person standing completing one final loop to claim victory. Runners who reach 100 miles within 24 hours will receive a custom belt buckle.

The event features an aid station, BBQ meals, and camping options for participants. It is an affiliate of the Big's Backyard Ultra, with the winner eligible for entry into the championship event. Visit the organization's website for the most recent information.