Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K Logo

Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K

Marble Falls, TX

Sun, Mar 28, 2027

In 159 days · Sun, Mar 28, 2027

Don't let race day sneak up

One email during race week. That's it.

Your race? Boost it to #1 in every search — $1/day →
When

Sunday, March 28th, 2027

Where

Turkey Bend Recreation Area, Marble Falls TX

Distances

Ultra · Half · 10K · 5K

Typical weather

On this date: rain 2 of the last 10 years

2026

53–66°F

rain

2025

62–77°F

dry

2024

46–76°F

dry

2023

55–71°F

dry

2022

60–87°F

dry

2021

56–72°F

dry

2020

57–77°F

dry

2019

57–80°F

dry

2018

58–69°F

rain

2017

67–84°F

dry

Best months to race in Texas →

About this race

Bluebonnet Trail Run: The Million Bluebonnets Run

Benefits: HKRS Cedar Park's Fall and Spring Youth Running Programs

One run. One million bluebonnets. One epic finish line.

Experience the Beauty of Texas Bluebonnets in Full Bloom!

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.

Race Details:

Choose your adventure:

  • 50M, 50K, 26.2M, 13.1M & 10K Trail Run - Challenge yourself on diverse terrain featuring lake views, wooded paths, and breathtaking bluebonnet meadows. Camping sites are available which you can reserve here
  • 5K Trail Run - Enjoy a moderately challenging route perfect for recreational runners of all levels

Course Records:

  • 50 Miles: Segundo de los Heros Monereo (M) 10:34:52 and Beatriz de los Heros de Uriarte (F) 10:34:52
  • 50K: Kate Taylor (F) 4:49:50 and Diego Romero (M) 5:51:39
  • Marathon: Anthony Peguero (M) 4:38:12 and Nat Taylor 5:18:12
  • Half- Marathon: Tim Parr1:38:41 (M) and Felicia Lombardi (F) 2:10:37

Why Participate?

  • Stunning Scenery: Experience bluebonnet season in one of Texas Hill Country's most beautiful natural settings
  • Community Spirit: Connect with fellow nature and running enthusiasts
  • Support Local Youth: Your optional donations directly benefit the HKRS Cedar Park's youth running programs
  • Beautiful Course: All routes are designed to showcase the natural beauty of Turkey Bend
  • Custom Medal: All participants receive a unique finisher's medal 

A Run with Purpose

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

How does your money help?

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!

Fit Foundation
Half Marathon Ruck
13.1 miles. Same trail. Weight on your back.

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 rules
  • Weigh in before the start. Bring your pack to the start area at least 30 minutes before your wave. We weigh it, we tag it, you go.
  • Water does not count. Your hydration, food, phone and layers are on top of the minimum. The weight is dry weight.
  • Any weight is fine. Ruck plates, bricks, sand, books, dumbbells. It has to be secure and it has to stay in the pack for the whole course.
  • You finish with what you started with. Weight is checked again at the finish. Anything under the minimum moves you out of the ruck division.
  • Carry it yourself. No handing your pack off, no dragging, no wheels.
  • Run, walk, or anything between. There is no rule about how you move, only about what you carry.
  • Rucking counts toward your Run the River mileage exactly the same as running. Thirteen point one miles is thirteen point one miles.
First time rucking?

A 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:

  • Train with the weight before race day. Even two or three loaded walks makes a difference to your shoulders.
  • Get the load high and tight against your back. Weight that sits low and swings will wreck you by mile six.
  • Wear the socks and shoes you have already tested. Rucking changes how your feet hit the ground.
  • Pack the weight so it cannot shift. Movement inside the pack is the most common reason people stop.
Same trail. Same finish line.
Considerably more of it on your back.
THE GAUNTLET (LAST ONE STANDING)
Stop 2 of 4 · The Spring Stop

The hill country is at its kindest.
The Gauntlet isn't.

Spring · Marble Falls, TX

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.
How it escalates

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.
Second of four
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
Prettiest stop on the circuit.
Same wall at the end of it.

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.

Course map

Suggested Races

A Happy New Year 5K & 10K Trail Run event logo

A Happy New Year 5K & 10K Trail Run event

Burnet, TX

Friday, January 1st, 2027

10K
5K
Trail
View details for race A Happy New Year 5K & 10K Trail Run event
ATX Holiday Victory Lap 10K, 5K logo

ATX Holiday Victory Lap 10K, 5K

Spicewood, TX

Sunday, December 13th, 2026

10K
5K
BQ
View details for race ATX Holiday Victory Lap 10K, 5K
Double Turkey 5K and 10K logo

Double Turkey 5K and 10K

Marble Falls, TX

Saturday, November 28th, 2026

10K
5K
View details for race Double Turkey 5K and 10K
Fields of Gold Half Marathon • 10K • 5K logo

Fields of Gold Half Marathon • 10K • 5K

Marble Falls, TX

Saturday, October 24th, 2026

5K
Half
10K
Trail
View details for race Fields of Gold Half Marathon • 10K • 5K
7 Creeks Vineyard Christmas Wine Run 5k logo

7 Creeks Vineyard Christmas Wine Run 5k

Burnet, TX

Saturday, December 5th, 2026

5K
View details for race 7 Creeks Vineyard Christmas Wine Run 5k
Pandora's Box of Rox logo

Pandora's Box of Rox

Burnet, TX

Saturday, April 24th, 2027

Marathon
Half
1 Mile
Trail
View details for race Pandora's Box of Rox
Spider Mountain Trail Race logo

Spider Mountain Trail Race

Burnet, TX

Saturday, May 1st, 2027

1 Mile
Trail
View details for race Spider Mountain Trail Race
Carter Creek Wine Run 5k logo

Carter Creek Wine Run 5k

Johnson City, TX

Saturday, February 27th, 2027

5K
View details for race Carter Creek Wine Run 5k
Lyme Warrior's Run Like A Warrior 5k Color Run - Johnson City TX logo

Lyme Warrior's Run Like A Warrior 5k Color Run ...

Johnson City, TX

Saturday, May 8th, 2027

5K
View details for race Lyme Warrior's Run Like A Warrior 5k Color Run - Johnson City TX
Texas Switchback logo

Texas Switchback

Johnson City, TX

Saturday, May 1st, 2027

5K
Half
Marathon
Trail
View details for race Texas Switchback
Old Town Rudolph Run logo

Old Town Rudolph Run

Leander, TX

Saturday, December 5th, 2026

5K
Fast
View details for race Old Town Rudolph Run
Mosaic Trail Race logo

Mosaic Trail Race

Liberty Hill, TX

Saturday, December 5th, 2026

Ultra
Marathon
Half
Trail
View details for race Mosaic Trail Race

River Ranch Resolution Run

Liberty Hill, TX

Saturday, January 9th, 2027

Ultra
Marathon
Half
Trail
View details for race River Ranch Resolution Run
Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler logo

Austin's Backyard Ultra • Marathon • Full • Hal...

Marble Falls, TX

Saturday, May 29th, 2027

Marathon
Half
Trail
View details for race Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler
Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Last Runner Standing logo

Bluebonnet Trail Run 50 Miler • 50K • Marathon ...

Marble Falls, TX

Saturday, March 27th, 2027

Ultra
Half
10K
Trail
View details for race Bluebonnet Trail Run 50 Miler • 50K • Marathon • Half Marathon & Ruck • 10K • 5K • Last Runner Standing
Fields of Gold 50 Miler • 50K • Marathon • Half Marathon & Ruck • 12 Hour • 10K • 5K logo

Fields of Gold 50 Miler • 50K • Marathon • Half...

Marble Falls, TX

Saturday, October 24th, 2026

Ultra
Marathon
Half
Trail
View details for race Fields of Gold 50 Miler • 50K • Marathon • Half Marathon & Ruck • 12 Hour • 10K • 5K
Mustang Marathon (Hill Country Trivium) Road Race logo

Mustang Marathon (Hill Country Trivium) Road Race

Marble Falls, TX

Sunday, November 8th, 2026

Ultra
Marathon
Half
Trail
View details for race Mustang Marathon (Hill Country Trivium) Road Race

Meadowlakes Turkey Trot

Marble Falls, TX

Thursday, November 26th, 2026

View details for race Meadowlakes Turkey Trot
New Years Trail Challenge (Ruck options available)- 100K | 50K | 25K | Half-Marathon | 10K | 5K logo

New Years Trail Challenge (Ruck options availab...

Marble Falls, TX

Friday, January 1st, 2027

1 Mile
Half
10K
Trail
View details for race New Years Trail Challenge (Ruck options available)- 100K | 50K | 25K | Half-Marathon | 10K | 5K
Reindeer Dash logo

Reindeer Dash

Marble Falls, TX

Saturday, December 19th, 2026

5K
View details for race Reindeer Dash

Organize this race?

Claim it free to manage your listing — and get it featured for free, while spots last.

Find The Run Newsletter