
Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Last Standing is a running and ultra race on March 27–28, 2027 in Marble Falls, TX, with entry fees from $29.99 to $159.99.
From the Organizer
A million reasons to run! Join us for the Bluebonnet Trail Run, where nature's most spectacular display of millions of Texas bluebonnets provides the backdrop for an unforgettable running experience. Set against the stunning shores of Lake Travis at Turkey Bend Recreation Area, this event offers something for everyone - from serious trail runners to families looking for outdoor fun.
Choose your adventure:
Course Records:
Your registration directly supports HKRS Cedar Park. After deducting event expenses, net proceeds from the Bluebonnet Trail Race will be donated to HKRS Cedar Park. These funds will support youth running programs in Cedar Park, including equipment, registration assistance for families in need, and program development. Your participation helps ensure every child has the opportunity to participate in healthy, active lifestyle programs - building confidence, friendships, and lifelong healthy habits.
You can also donate directly to HKRS Cedar Park here
Limited financial resources, lack of access to youth sports programs, social isolation, and barriers to healthy lifestyle activities are just some of the challenges young people face in accessing running programs. Through HKRS Cedar Park's 5-week fall and spring running series, and having a supportive community presence, HKRS Cedar Park helps kids build confidence, develop healthy habits, and overcome obstacles to active living. HKRS Cedar Park is part of a nationally recognized organization. As a 501(c)(3) nonprofit it offers registration assistance to ensure all children can participate regardless of their family's financial situation, and anyone can access their programs including families new to running. All of their programs are welcoming, inclusive, and tailored to each individual child's age and ability level. Your money helps to do this.
Note: Due to the seasonal nature of bluebonnets, this event is scheduled during peak bloom time. Trail conditions are weather-dependent, and routes may be adjusted to protect natural areas.
The Bluebonnet Trail Run is managed and organized by Fit Foundation volunteers in aid of Healthy Kids Running Series Cedar Park youth programs.
Register today and secure your spot for this unique Texas Hill Country experience!
Rucking is covering ground with a loaded pack. Same course as the half marathon, same start, same finish line, same cutoff. The only difference is what you are carrying and who you are racing.
Ruckers are scored as their own division with their own results and their own awards. You are not competing against the runners and they are not competing against you.
Minimum pack weight 20 lb · 30 lb 20 lb if you weigh under 150 lb. 30 lb if you weigh 150 lb or over. The rulesA loaded pack on a trail is harder than the same distance on your feet, and most people go out too quick. A few things that help:
By the time The Gauntlet reaches Marble Falls, the bluebonnets are out and the hill country is doing the one week of the year it puts on a show for. The course is not interested. Same rules as every stop on the circuit: 4 miles at 15:00 pace to open, then the ground shifts under you every eight hours until The Wall locks at 7 miles and 8:34 pace, on the hour, for as long as you can answer the bell.
Spring gives back the daylight the opener took, and charges for it. Warm afternoons, cold nights, and enough wind moving through the hills to make the same loop feel like two different courses depending on when you run it. The scenery is the best on the circuit. It stops mattering somewhere around hour 20.
This is the stop where the field sorts itself out. Runners who found their limit at Canyon of the Eagles come back knowing exactly what The Wall costs and how much of themselves it takes just to reach it. Everyone else finds out here, in the dark, with a loop that got longer three times since they felt fresh.
| 4 → 7 MI The Ramp The loop grows three times before it locks. You do not get the easy version back. | 8 HRS Between Escalations Long enough to settle in. Short enough that settling in is a mistake. |
| 176 MI Just To Reach The Wall Nobody arrives at hour 33 fresh. That is the entire point of it. | 1 Sole Survivor One title, one name. Everyone else is recorded with their yard count. |
Same bell every hour. Different race underneath it.
| Hours | Loop | Pace | Running total |
|---|---|---|---|
| 1 to 8 | 4.0 mi | 15:00 /mi | 32 mi |
| 9 to 16 | 5.0 mi | 12:00 /mi | 72 mi |
| 17 to 24 | 6.0 mi | 10:00 /mi | 120 mi |
| 25 to 32 | 7.0 mi | 8:34 /mi | 176 mi |
| 33+ | 7.0 mi | 8:34 /mi | +7 every hour |
Everyone who reaches The Wall has already run 176 miles through three different versions of this race. From there it stops being a race and becomes a question of who can keep finding 8:34 with less and less left to find it with.
Two kinds of runner line up here| Ran the opener You already know what the 6 mile block does to a body that has been out there sixteen hours. The question is whether knowing it makes you patient early or makes you flinch. | First Gauntlet The opening hours will feel too easy, and that is the trap. Bank the easy loops without spending anything. The race you are training for does not start until hour 17. |
| 01 · Opener Canyon of the Eagles New Year's Day, Burnet | 02 · You are here Bluebonnet Trail Run Spring, Marble Falls | 03 Labor Day Challenge Labor Day weekend | 04 · Finale Fields of Gold October, Marble Falls |
Three stops left after this one, and the board only remembers who was last to stop.
Enter The Gauntlet → One name left standing. One title: Sole Survivor.Weather
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
75°
Typical Low
52°
Chance of Rain
24%
Based on US Climate Normals data from Burnet Muni Ap, 11 mi from the venue.
Host City
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
Every finish line starts with a single decision. Claim your spot at Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Last Standing, put it on the calendar, and turn “someday” into a start date.
202
Days to train
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From Endurance Grid
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.
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.
An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.
Coming Up
Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Last Standing
Mar 27, 2027