Big Tex Backyard Ultra

Big Tex Backyard Ultra is Trail Racing Over Texas’s Last Runner Standing event at Stephen F. Austin State Park in San Felipe, Texas. The Backyard format uses a 4.17-mile yard that starts every hour and continues until only one runner remains, with on-course aid provided by the runner.

The course features wide gravel trails with minimal elevation. Runners set up in the grass around the shelter for personal aid and gear; camping and RV sites are nearby. All finishers receive a hoodie and a poster stamped with completed yards; 24 yards earn a 100-mile buckle.

The winner earns a dollar per mile; the runner-up a dollar per yard. Visit the organization's website for the most recent information.