Big Tex Backyard Ultra

The Big Tex Backyard Ultra is a challenging "last runner standing" ultramarathon held at Stephen F. Austin State Park in San Felipe, Texas, near Houston. The race features a 4.17-mile loop that starts every hour on the hour, with runners required to complete each loop within the hour to continue.

The course consists of wide, well-maintained crushed gravel trails with minimal elevation change. Participants can set up personal aid stations in a large grass area near the start/finish pavilion, with full support including food, hydration, and medical aid. The event offers a unique endurance test, with prizes based on distance completed, and serves as a qualifier for larger backyard ultra championships. Visit the organization's website for the most recent information.