Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler logo

Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler

Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler is a running and rucking race on May 29–31, 2027 in Marble Falls, TX, with entry fees from $39.99 to $129.99.

Date
May 29–31, 2027 (310 days to go)
Price
$39.99–$129.99
Sports
RunningRucking
Register →

From the Organizer

AUSTIN'S BACKYARD MARATHON

How Far Will You Go?

"So, the last shall be first, and the first last"

BRONZE TICKET QUALIFIER

 

Texas Hill Country Wild

Our event takes place at Turkey Bend LCRA Recreation Area near Lago Vista and Marble Falls, Texas. The course traces a peninsula along the Colorado River, winding through open meadows, wildflower fields, and shaded Hill Country woodland. Expansive views. Rolling terrain. Wildflower invasions in spring. A landscape that earns every mile you put into it.

Join us for Austin's Backyard Marathon & Memorial Day Remembrance Run, a race weekend built around endurance, community, and remembrance. Whether you're chasing the Bronze Ticket, your first marathon, or running to honor someone, you'll find your distance and your reason at Turkey Bend. 

The Backyard Ultra Format

Saturday —Last Person Standing Challenge

Austin's Backyard Ultra is a premier, rugged challenge. It’s not just a race against the clock; it’s a race against the Texas Hill Country terrain. Not your average flat backyard. This is an officially sanctioned Backyard Ultra and part of the Texas Backyard Ultra Series. One 4.2-mile loop. One hour to complete it. A new loop starts at the top of every hour. Miss the cutoff, you're out. Last runner remaining wins.

One unified course that all runners follow, through full sun, through dusk, through the long midnight hours, into Sunday's dawn if you make it that far.

The course is anchored by a central start/finish corral located near the park's main camping clusters. This is home base, where crews refuel runners and runners reset between yards. Where the race is won and lost not in the running, but in those few minutes between hours.

Earn every yard. Climb every hour. Austin's Backyard Ultra is a bucket-list event for runners who want to test their true power, not just their flat pacing.

The trail itself is a 4.2-mile out-and-back along the Turkey Bend peninsula with a tight finishing lollipop. Wildflower meadows, lakeside views, and Hill Country woodland in alternating sections. Reflective markers guide runners through the nighttime hours. The course rewards a steady, efficient pace and a calm mind. One more hour at a time.

 

The Texas Backyard Series Pass Options

Want the ultimate circuit experience? Choose a Bundle during checkout to unlock exclusive contender privileges:

  • Mailed Legacy Bib: Your permanent number for the entire season, shipped straight to your door. Zero race-day lines (Must be registered at least 3 weeks before the first race day for guaranteed delivery).
  • Priority Crew Pit Setup: Premium space allocation closest to the starting corral at all venues.
  • Injury Deferral Insurance: Clean, hassle-free single-race transfers if your training block gets sidelined.

A backyard ultra is won at the rest chair, not the starting line. Click here to subscribe to our free weekly newsletter, training plans, pacing strategy, and the mental playbook for the bell. Every Wednesday, straight to your inbox.

Sunday — Memorial Day Remembrance Run

The Memorial Day Remembrance Run is a chance to cover ground with purpose. Run in honor of someone. Run, ruck, or walk in their memory. Run because you can, and they cannot. Run the same unified course as the Backyard Ultra athletes. Same trail. Same wildflower-lined Hill Country views. Half the chaos, all of the experience.

Four distances. One course. No clock pressure.

Marathon (26.2 miles): Seven loops total — six 4.2-mile main loops plus one 1-mile finishing loop.

Half Marathon (13.1 miles): Four loops total — three 4.2-mile main loops plus one 1-mile finishing loop.

The 4 Mile March

The 8 Mile March

You'll share the trail with Bronze Ticket hopefuls. Some of them will still be on course when you finish. That's part of the magic of race weekend at Turkey Bend. While the trail may still hold a backyard ultra runner or two, somewhere past hour twenty, still answering the bell, a new group lines up at dawn.

A brief moment of silence and reflection will occur at the start line to honor the purpose of the day.

If you share the trail with a backyard ultra runner, give them room. Cheer for them. They've been out here a long time.

The Rules for the Last Runner Standing

  • The course is a 4.2-mile unified loop
  • A new loop starts at the top of each hour
  • Participants must complete each loop within the hour to continue
  • Runners are eliminated if they fail to complete a loop in time or choose not to start the next loop
  • The last person to complete a loop is declared the overall winner

Race Distance Equivalents

Half Marathon

3 + 1 Loops

13.1 miles

Marathon

6 + 1 Loops

26.2 miles

50K

7 + 1 Loops

31.4 miles

50 Miles

12 Loops

50.4 miles

100K

15 Loops

62.8 miles

100 Miles

24 Loops

100.8 miles

 

Awards

Finisher Woodallion

Complete at least one loop

🏅

Half Marathon Medal

Complete 13.1 miles

🥈

Marathon Medal

Complete 26.2 miles

🥇

Ultra Medal

Complete 8+ loops (31+ miles)

🏆

Last Person Standing

Overall winner award

👑

What's Included

Event Entry

Access to this unique endurance challenge in the Texas Hill Country

Custom Event Shirt

Commemorative shirt to remember your achievement

Finisher's Medal

Earn a medal by completing at least one loop

Aid Station Support

Fully stocked aid stations to keep you going hour after hour

Who Will Be The Last Person Standing?

How many loops can you complete? Ready to Test Your Limits? 
 One loop. One hour. One more hour. Join us at Turkey Bend for a race weekend you won't forget.

REGISTER NOW

Events

Austin's Backyard Ultra$129.99
The 4 Mile March (Ruck)$39.99
The 4 Mile March$39.99
The 8 Mile March$49.99
The 8 Mile March (Ruck)$49.99
Remembrance Run Half-Marathon$75.99
Memorial Marathon$89.99

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

88°

Typical Low

68°

Chance of Rain

23%

Based on US Climate Normals data from Austin 33 Nw, 8 mi from the venue.

Sunrise 6:31 AMSunset 8:28 PMDaylight 13h 57m

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 Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler, put it on the calendar, and turn “someday” into a start date.

310

Days to train

Race
Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler
Date
May 29–31, 2027

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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.

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.

Rucking

Covering a distance on foot under a weighted rucksack — from timed solo challenges to longer team events.

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 Falls
Lodging
Flights
Rental Car
Activities

Frequently Asked Questions (FAQs)

What is the Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler?+
Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler is a running and rucking race held in Marble Falls, Texas on May 29, 2027. 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 Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler?+
Saturday, May 29, 2027 in Marble Falls, Texas at 4000 Shaw Dr.. Check the event page for exact start times and wave schedules.
How do I register for the Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler?+
Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.

Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler

May 29, 2027

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