Park Rd 38, San Felipe TX
Saturday, October 18th, 2025
The Big Tex Backyard Ultra takes place at Stephen F. Austin State Park in San Felipe allowing a large grass area for personal aid setup around our group dining hall screen shelter as well as reserved campsites and full hookup RV sites. The group dining hall area hosts a large grass area for runners to set up personal crew spots.
The Backyard format is simple: 100 miles divided into 24 hours gives you 4.167 miles for a "yard" (lap). Every hour, on the hour, a new yard will start, and you must finish within the hour and be back in the starting corral for the next one to stay in the run. Complete as many as you can, the last runner standing wins.
Once you are on the course, you are not allowed any aid from your crew or any other individual. No non-competitors on the course (including eliminated runners). Except for restrooms, competitors may not leave the course until each loop is completed. Runners are responsible for their own aid on the course (carried with them from the start). You must be on and stay on the course unless you need to use the bathroom.
Overall winner per backyard rules must complete one more yard than everyone else (otherwise no winner), no seconder payout if more than one seconder.
Update from Laz on the road to Big's: TROT has applied for a 2025 Silver Ticket and with the application will receive a Bronze Ticket for 2024 (this year). "Bronze ticket winners earn a spot in a silver ticket race, and silver ticket winners earn a place on the national team to compete on the third Saturday of October 2026. The top 50 winners of the national championships earn a place at Big's world individual championships on the third Saturday of October 2027."
Visit the official race page: Big Tex Backyard Ultra.
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