Big Tex Backyard Ultra

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From Trail Racing Over Texas

  • Date Sat 7th November 2026
  • Time 7:00AM CST
  • Location San Felipe, Texas
  • Price Free - $149.40
  • Races 3 races
  • Distances 1km

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Event summary

Get ready for an exhilarating experience at the Big Tex Backyard Ultra, hosted by Trail Racing Over Texas! This thrilling event is set to take place on Saturday, November 7th, 2026, at the picturesque Stephen F. Austin State Park in San Felipe, Austin. The Big Tex Backyard Ultra is a "last runner standing" format race, where participants will tackle a challenging 4.17-mile lap, known as a "yard," every hour on the hour until only one runner remains. With well-maintained trails and a supportive atmosphere, this race promises excitement and camaraderie among runners and their crews.

As the fourth edition of this unique event, the Big Tex Backyard Ultra will also serve as a Bronze Ticket race, paving the way for competitors to qualify for future prestigious championships. All participants will receive exclusive race apparel, a special finisher's award, and access to fully stocked aid stations. Runners who complete 24 yards will earn a coveted 100-mile buckle, while the overall winner will earn a dollar for every mile they run. Don't miss this incredible opportunity to test your endurance, meet fellow running enthusiasts, and enjoy the beautiful surroundings of Austin's Stephen F. Austin State Park!

Organiser's Description

LAST RUNNER STANDING

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 (see below information).

The SFA State Park has a network of wide, well-maintained, trails, primarily crushed gravel, with minimal elevation change.

Back for year four, The Big Tex Backyard is a "last runner standing" format event with a 4.17 mile "yard" starting every hour, on the hour, until there is only one remaining. Standard backyard format rules will apply (see below details). 2026 is a Bronze Ticket race to Laz's Big Dog's Backyard road to the 2027 Silver Ticket Races to the 2028 National Championships to the 2029 Backyard World Championships (see the Backyard Ultra site for confirmation on races, qualifying, and other details.

All participants will receive the race apparel (limited quantities after our three week order deadline), a special finishers award, and fully stocked aid station support. Runners completing 24 yards will receive a 100mi buckle. The winner of the Last Runner Standing event will win a dollar for every mile they run, and the seconder will win a dollar for every yard they finish!**



BACKYARD FORMAT RULES

The Backyard format is simple: 100 miles divided into 24 hours give 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.

Runners and crew will be able to set up a personal area with chairs, tents, etc. around the start/finish course-line area for personal aid, gear, and rest between yards (not during).

We will give a 3-minute, 2-minute, and 1-minute warning to be inside the starting corral for the next yard.

All runners are required to be in the starting corral before the top of the hour.

Failure to line up in the starting corral will result in the disqualification of the runner. Participants must start a new yard at the sound, and continue out on the course (not back to their tent, aid, etc.).

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.

No artificial aids (including trekking poles) are allowed. Once you complete the yard, and assuming you have finished within the hour, you may use the bathroom, eat, drink, sleep, ponder the next yard, aid station, etc., but you MUST be back in the start corral at the beginning of the hour to continue into the next hours yard. Runners will continue until ONE runner completes a FINAL lap. (i.e. If there are two runners left and one does not complete the loop, then the one that completed the loop will be declared the winner). No pacers whatsoever. A single runner can not continue solo beyond the final yard.

You must check out with the race director once you can not complete a yard or decide not to begin the next yard.

**Overall Cash Prize Rules: The overall winner of the Last Runner Standing, per backyard rules, must complete one more yard than everyone else (otherwise there is no winner). Seconder payout will go to the seconder with the fastest completed final lap (if more than one seconder).

Races

  • Last Runner Standing

    Incl. $9.40 Fee & Long Sleeve

    Sat 7th November 2026 (7:00AM CST)

    $149.40

  • Last Rucker Standing

    Incl. $9.40 Fee & Long Sleeve

    Sat 7th November 2026 (7:00AM CST)

    $149.40

    CLOSED
    This event has been moved into the Last Runner Standing main event, you are welcome to ruck but we will not have a different course or division this year.
  • Lil Tex Kids K

    Incl. Youth Shirt

    Sat 7th November 2026 (12:00PM CST)

    Free

    14 and Under, free park entry and race bib with a finishers ribbon/medal. Does not include a shirt.

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Location

Park Rd 38, San Felipe, 77473, TX, United States

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Nov 7, 2026

Free - $149.40