HalfRuns
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

Austin's Backyard Marathon offers a unique Texas Hill Country challenge along the Colorado River.

Race Date

May 29, 2027

Location

Marble Falls, TX

Quick facts

Date
Saturday, May 29, 2027
Location
Marble Falls, Texas
Distance
Half marathon (13.1 mi) + Austin's Backyard Ultra, 26.2 Miles
Course
Loop Course
Terrain
Mixed
USATF certified
Not listed

Highlights

Good For

Destination Worthy

Atmosphere

Local CommunityWell Organized

Course

Scenic Route

The Experience

Set in the scenic Texas Hill Country at Turkey Bend LCRA Recreation Area, this race unfolds along a peninsula bordering the Colorado River. Runners navigate through open meadows, vibrant wildflower fields, and shaded woodland, offering expansive views and a true taste of the local landscape.

The course presents rolling terrain, a departure from the typical flat Texas courses, promising a challenging yet rewarding experience. The atmosphere is built around endurance, community, and remembrance, with a special Memorial Day Remembrance Run complementing the main marathon and the unique Backyard Ultra format.

This event is designed for those seeking a challenge, whether aiming for a Bronze Ticket qualifier, a first marathon, or running in honor of someone. The Backyard Ultra itself is a test of grit, with runners completing 4.2-mile loops within an hour, starting every hour until only one remains.

Race-provided description

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 loopA new loop starts at the top of each hourParticipants must complete each loop within the hour to continueRunners are eliminated if they fail to complete a loop in time or choose not to start the next loopThe 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

Logistics

Race Day

Saturday, May 29, 2027

Start Time

7:00 AM

Giveaway

T-Shirt

Start Location

4000 Shaw Dr., Marble Falls, TX, 78654

Directions

Course Info

Course Type

Loop Course

Terrain

mixed

Scenery

Lake River, Forest

Difficulty

Rolling Hills

Net Drop/km

0 m (Flat)

Separation

0.0%

Also Offers

Austin's Backyard Ultra26.2 Miles

Quality Score

Methodology
Heritage0/20

first year

Size0/15

no finisher counts yet

Momentum3/5

small race — neutral

Loyalty0/20

needs a few years of results

Course & details6/15

3 timing sources · 7 photos

National draw0/10

no finisher data yet

Front-pack speed0/5

no winner time yet

Weather0/10

typical high 87°F

Race Day Weather

5-year historical avg

Start (Low)

68°

Afternoon (High)

87°

Hot conditions — adjust pace expectations, prioritize hydration

0.3"

Precipitation

13 mph

Wind

73%

Humidity

Race Photos

Frequently asked

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

The Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler is held on Saturday, May 29, 2027, starting at 7:00 AM.

Where does the Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler take place?

It takes place in Marble Falls, Texas.

What distances does the Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler offer?

The half marathon (13.1 miles), plus Austin's Backyard Ultra, 26.2 Miles.

Is the Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler course flat and good for a PR?

The Austin's Backyard Ultra • Marathon • Full • Half & Memorial Day Remembrance Run 4 Miler • 8 Miler is a rolling hills, loop course course.

HalfRuns editorial — independent, no paid placement.

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