In 19 days · Sun, Nov 8, 2026
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Sunday, November 8th, 2026
2101 Mustang Dr, Marble Falls TX
Ultra · Marathon · Half · 10K
53–72°F · some rain risk
See last 10 years
On this date: rain 5 of the last 10 years
2025
51–83°F
dry
2024
62–81°F
rain
2023
65–82°F
dry
2022
66–79°F
dry
2021
52–75°F
dry
2020
59–79°F
dry
2019
42–57°F
rain
2018
55–63°F
rain
2017
45–59°F
rain
2016
62–65°F
rain
Best months to race in Texas →
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.
Course map
Train with a club
Run clubs near Marble Falls to train with before race day.
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