Mustang Marathon (Hill Country Trivium) Road Race
About this race
Sunday, November 8th, 2026.
Are you ready for one of the most challenging & amazing road races in all of Texas? The Mustang Marathon (formerly known as The Hill Country Trivium) is a set of 50k, full marathon, half marathon (a.k.a. "Thirteener"), 10k & 5k races held in the beautiful Hill Country town of Marble Falls. Each race takes place on a paved surface involving a true "Out & Back" course on country roads with rolling hills, formidable climbs & gorgeous views. All races begin & end at the Marble Falls High School’s Mustang Stadium. In addition to various race perks, all finishers will receive pie from the legendary Bluebonnet Cafe upon crossing the finish line!
While every racer will get some cool swag, October 16th is the deadline to get a shirt.
Ready to test your limits? The Mustang Marathon (Hill Country Trivium) Road Race brings a highly anticipated Ultra, Marathon, Half-Marathon, 10K, 5K, 1.6K to Marble Falls on November 8, 2026. Expect a fantastic route right in the heart of Texas.
Pick your distance
Trail running
Mustang Marathon 50k
Mustang Marathon 26.2mi
Mustang Marathon 13.1mi
Mustang Marathon 10k
Mustang Marathon 5k
Mustang Marathon Youth 1-Mile Run (12 & Under)
Come join us for the Hill Country Trivium Youth 1-Mile Race. The Youth Run is for Kids 12 & under and will be sure to please our youngest runners quest for adventure! The distance is approximately 1 mile and parents may run with their kids at no cost. Each young runner gets a finisher's medal! **T-shirts are not included but are available for purchase for $15 during registration.
Weather Overview
These values represent the 7-year monthly averages for November in Marble Falls.
About Marble Falls
Mustang Marathon (Hill Country Trivium) Road Race takes place in Marble Falls, Texas, United States. The local timezone is America/Chicago.
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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.
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