NO SET DISTANCE
SignatureROO BACKYARD ULTRA
Backyard Ultra
LAST ONE STANDING
One 4.17-mile loop every hour until only one runner remains. It's not about speed. It's about refusing to quit.
THE WESTWAS NEVEREASY.
JUNE 25–26, 2027 · CLANCY, MONTANA
FIVE RACES. ONE PRIVATE MONTANA RANCH.
ROO RACE SERIES
MORE THANA RACEWEEKEND.
Five races. One private Montana ranch. A weekend that stays with you long after the finish.
05
RACES
PRIVATE
RANCH
RANCH
LAND
CLANCY,
MONTANA
MONTANA
LOCATION
JUNE
25–26
2027
25–26
2027
WHEN
THE FIRST ROO
39 Hours.163.8 Miles.One Left.
The inaugural ROO pushed through 494 laps, nearly 500 runner-hours, competitors from 11 states, and a final duel covering more than 321 miles.
39 HOURS
UNTIL ONE REMAINED
163.8 MILES
WINNING DISTANCE
494 LAPS
COMPLETED
11 STATES
REPRESENTED
23
ULTRAMARATHON FINISHERS
$10,000
PRIZE PURSE
Choose Your Race
50K
50K
Ultra
THE LONG WAY HOME
Our flagship mountain ultra built for runners who want to earn every mile across the Montana backcountry.
25K
25K
Trail
THE SWEET SPOT
Enough distance to challenge you. Enough speed to race. The perfect balance of adventure and competition.
10K
10K
Trail
START HERE
Fast, approachable, and every bit as memorable. A perfect introduction to the ROO Race Series.
1M
LITTLE ROO MILE
Kids Mile
THE NEXT GENERATION
A one-mile race built for young runners, big smiles, and the beginning of lifelong memories.
ROO Experiences
Beyond TheStarting Line.
ROO is more than a race.
Build your crew, prepare your base camp, and make the most of race weekend.
01Team Competition
CrewShowdown
Four Races. One Crew.
A team-based competition bringing runners together across the race weekend.
Free
To enter · 3–4 scoring athletes
02Backyard Ultra Exclusive
ROOBase Camp
Arrive. Settle In. Race.
A complete pre-set camping rental package for Backyard Ultra competitors and their crews.
$250
Before applicable checkout taxes or fees
ROO ULTRA
LAST ONESTANDING.
Every hour, on the hour, competitors run one 4.17-mile loop.Return to the starting corral before the next hour begins, or the race is over for you.This continues until one runner remains.In 2026, the inaugural ROO Ultra lasted 39 hours and 163.8 miles.
Register For ROO UltraROO Base Camp
Backyard Ultra Exclusive
Arrive.Settle In.Race.
We handle the equipment and the setup. You focus on racing.
Skip buying, packing, hauling, and pitching your own camping gear. Your Base Camp is prepared in your assigned Backyard Ultra Crew Corral space before you arrive.
$250
Per package. Your final total, including any applicable taxes or fees, is shown at checkout.
Limited initial availability. Packages are offered while they last.
Or through UltraSignup
Your Base Camp Includes
- 01One camping tent
- 02Two camping chairs
- 03One camping table
- 04One cooler
- 05One bag of ice
- 06Complete setup before you arrive
Rental Terms
- Available exclusively to Backyard Ultra competitors and their crews.
- Equipment is rented for race weekend. It remains on-site and is not transferred to the purchaser.
- Your Base Camp is prepared in your assigned Backyard Ultra Crew Corral space.
- All Crew Corral access times still apply, including the mandatory Friday briefing and controlled setup procedures. Base Camp does not grant early access to the Crew Corral.
The Weekend
Friday
June 25, 2027
The Trail Races
- 50K — 6:30 AM
- 25K — 8:00 AM
- 10K — 10:00 AM
- Little ROO Mile — 12:00 PM
Four distances. One day across private Montana ranchland.
Race As A Team: Crew Showdown→Saturday
June 26, 2027
ROO Backyard Ultra
- Start — 10:00 AM
- 4.17 Miles
- Every Hour
- Last One Standing
The race continues until only one runner remains.
Camp With Your Crew: ROO Base Camp→Spectator Experience
Private Montana Ranch
Not JustA Finish Line.
A PlaceTo Stay.
Unlike traditional races, the ROO Backyard Ultra keeps runners, crews, families, and spectators together throughout the event.
Every hour, runners return to the same start line before heading back onto the course. Your crew isn't chasing aid stations across town. They're part of every lap, every decision, and every defining moment.
Spend the day exploring the ranch, meeting fellow runners, and watching the field narrow until only one athlete remains.
Private Ranch
Crew-Friendly Venue
All Day Experience
Stay From Start To Finish
Every Loop Returns
Never Miss A Moment
2026 / The Inaugural
39 HoursOn The Ranch.
01 — The Place
Clancy, Montana
Private Montana Ranch
02 — The Gathering
One corral.One starting line.Every hour.
03 — Into The Ranch
4.17 Miles.
Again.
04 — The Hours
Hour 01
Hour 08
Hour 16
05 — The Cost
Eventually,
the race gets quiet.
Rest.
Reset.
Return to the line.
06 — The Stakes
$10,000On The Line.
07 — The Field Narrows
41 Started.
23 Became Ultramarathoners.
5 Passed 100 Miles.
2 Remained.
08 — Then There Were Two
39 Hours.163.8 Miles.
One Left.
Zachary Sayre
2026 ROO Ultra Champion
39 Laps · 163.8 Miles · $10,000
The ROO Story
Why We Built ROO
Some PlacesAre WorthComing Back To.
Most races are measured by times, medals, and finish lines.
We believe they are remembered for something else entirely.
The place.The people.The stories you leave with.
In 2026, we brought a group of runners to a private ranch in the Montana mountains to find out what would happen if we built a race differently.
They stayed for 39 hours.
What started as a race became something we want to return to every year.
We don't want ROO to become the biggest race.
We want it to become one you can't imagine missing.
Come For The Race.Return For The Tradition.
FAQ
Good To Know.
ROO is a race weekend built on private Montana ranchland, bringing together multiple distances, a Backyard Ultra, and the people who make the experience what it is. Different races. Different goals. One weekend at the ranch.
ROO weekend includes the 50K, 25K, 10K, Little ROO Mile, and the ROO Ultra Backyard Ultra. Whether you are racing your first trail 10K or seeing how long you can keep going, there is a place for you on the start line.
The Little ROO Mile is built for our youngest runners. The 10K offers an approachable taste of the ranch. The 25K steps into longer-distance trail racing. The 50K delivers the full ultramarathon challenge. And the ROO Ultra asks a different question entirely: how long can you keep going?
Explore The Races→ROO takes place on private ranchland near Clancy, Montana, surrounded by the Elkhorn Mountains. The landscape is not simply where the races happen. It is part of the experience.
Absolutely. ROO is designed to be experienced together. Family, friends, crews, and spectators are part of the weekend, from the shorter Friday races through the final hours of the ROO Ultra.
Yes. Registration for the 2027 ROO race weekend is open now through UltraSignup.
Register Now→Volunteer With ROO
The Race Doesn't Happen Without The People Behind It.
ROO is built by runners, crews, volunteers, and people willing to show up and be part of something.
Whether you've spent years around endurance events or this would be your first one, we'd love to know where you are and how you'd like to get involved.
ROO 2027
SEE YOUAT THE RANCH.
June 25–26, 2027
Clancy, Montana
Five races. Two days. One private Montana ranch.
Registration Open.