Mustang Marathon (Hill Country Trivium) Road Race
- Date
- November 8, 2026
- Distance
- Mustang Marathon 50k · Mustang Marathon 26.2mi · Mustang Marathon 13.1mi & more
From the Organizer
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.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
72°
Typical Low
50°
Chance of Rain
23%
Based on US Climate Normals data from Burnet Muni Ap, 11 mi from the venue.
Host City
About Marble Falls, TX
Population
7,255
as of 2023
Nearest Airport
GRK
Killeen Regional Airport / Robert Gray Army Airfield · 43 mi
Major Hub
AUS
Austin Bergstrom International Airport · 45 mi
Time Zone
Central Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Mustang Marathon (Hill Country Trivium) Road Race, put it on the calendar, and turn “someday” into a start date.
153
Days to train
- Race
- Mustang Marathon (Hill Country Trivium) Road Race
- Date
- November 8, 2026
Coming Up
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
The half marathon is the distance where you find out what you're actually made of. Long enough to demand real preparation. Short enough that it doesn't consume your life to train for it. Most people who run their first half describe it as the race that changed their relationship with what they're capable of. Once you cross this finish line, the bar moves. That's not a warning — that's the point.
Race day energy varies by event size, but the finish line feeling is the same regardless. Big races keep the noise going the whole way. Smaller races give you stretches where it's just you and the miles — and that solitude becomes its own kind of fuel.
The half marathon rewards people who show up for the boring training miles.
How long to train: 10–14 weeks. If you're already running consistently, 10 weeks of structured buildup is enough. If you're building from a casual base, give yourself 14.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Mustang Marathon (Hill Country Trivium) Road Race?
- Mustang Marathon (Hill Country Trivium) Road Race is a running race held in Marble Falls, Texas on November 8, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Mustang Marathon (Hill Country Trivium) Road Race?
- Sunday, November 8, 2026 in Marble Falls, Texas at 2101 Mustang Dr, Marble Falls, TX. Check the event page for exact start times and wave schedules.
- How do I register for the Mustang Marathon (Hill Country Trivium) Road Race?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Mustang Marathon (Hill Country Trivium) Road Race
Nov 8, 2026