Mustang Marathon (Hill Country Trivium) Road Race
Mustang Marathon (Hill Country Trivium) Road Race is a trail running and running race on November 8, 2026 in Marble Falls, TX, with entry fees from $10 to $120.
- Date
- November 8, 2026 (108 days to go)
- Price
- $10–$120
- Sports
- Trail RunningRunning
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
70°
Typical Low
52°
Chance of Rain
21%
Based on US Climate Normals data from Austin 33 Nw, 10 mi from the venue.
Host City
About Marble Falls, TX
Population
7,255
as of 2023
City Elevation
806 ft
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.
108
Days to train
- Race
- Mustang Marathon (Hill Country Trivium) Road Race
- Date
- November 8, 2026
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From Endurance Grid
About These Sports
This race spans more than one sport — here’s a guide to each, so you can understand what’s involved and decide if it’s the right fit. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Trail Running
Running off-road — dirt, singletrack, and mountain paths — from 5Ks to ultras. The terrain makes for an exciting twist and adventure in your running journey.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More Trail Running races near Marble Falls, TX
Capt'n Karl's Trail Series - Reveille Peak Ranch
1 Mile · 5K · 10K · Ultra · From $10 · 105 County Rd 114
16 miles away
Hill Country Triple Trail Run
1 Mile · 5K · 10K · Half Marathon · Marathon · 50K · From $10 · 3835 Ranch to Market Rd 2342, Burnet, TX 78611
13 miles away
Inks Lake Trail Run/Ruck
1 Mile · 5K · 10K · Half Marathon · Marathon · 50K · From $10 · 3630 Park Road 4 West
8 miles away
Summit Backyard Ultra (Last Person Standing)
From $150 · 2200 Manzano Mile, Marble Falls, TX 78654
Less than a mile away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Marble Falls than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to Marble FallsFrequently Asked Questions (FAQs)
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Mustang Marathon (Hill Country Trivium) Road Race
Nov 8, 2026