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Boerboel Strength and Performance: Questions Answered
By Cold River Boerboels | Updated October 2026
Performance is what Cold River is built on. Cold River's Sun Wukong and Cold River's Mr. Wednesday each pulled 22,039 lb on May 9, 2026, the heaviest single-dog pulls in any weight-pull federation's published results. Sun was the first Boerboel ADBA National Champion and the first ADBA ACE. Wednesday is a SABBS Grand Champion and won the 2026 Boerboel Expo.
The answers below explain what performance-bred means, what ADBA is, how active a Boerboel really is, the qualities we breed for, and who Sun Wukong and Mr. Wednesday are. To start your own dog in the sport, read our dog weight pulling guide.
Strength and Performance Questions
How active are Boerboels?
Boerboels are athletic but not typically hyper. A well-bred Boerboel should be able to settle in the home but still have the drive and stamina to work when asked. They need regular physical and mental activity, but that looks different depending on age and individual temperament. At Cold River we place a strong emphasis on functional athleticism: dogs that can move well, work hard, recover properly, and still remain stable in everyday life, without compromising size and substance, while still carrying good mass, strong bone, and incredible presence.
To see what a well-conditioned Boerboel can do, read our dog weight pulling guide.
What is ADBA and what is ADBA for the Boerboel?
ADBA is the American Dog Breeders Association. It was founded in 1909 as a multiple breed registry, but historically became primarily focused on the American Pit Bull Terrier. In 2006, the ADBA again opened its registry to other purebred dogs.
One of the biggest differences with the ADBA is its strong emphasis on the working and performance side of the dog. ADBA sanctions weight pull and its Top Dog athletic events, including treadmill racing, wall climb, lure coursing, as well as conformation.
For us, that performance side is especially important. We came from an American Pit Bull Terrier background and have competed in areas including weight pull, wall climb, treadmill racing, lure coursing, and conformation. For the Boerboel, ADBA gives us a way to evaluate qualities that can't always be measured by looking at a dog standing still: workability, trainability, stability, structure in motion, recovery, athletic ability, and willingness to perform.
Cold River's Sun Wukong became the first Boerboel to win an ADBA National Championship and the first Boerboel to earn the ADBA Weight Pull ACE title. That is a concrete example of how we are actually using the ADBA system to evaluate and prove Boerboels in performance, rather than simply talking about working ability.
ADBA titles are also recorded as part of a dog's official record, such as ADBA Weight Pull ACE titles and higher degrees like ACE of ACE. That gives a breeder another measurable piece of information about that dog.
For the average pet owner, an ADBA title is not something they necessarily need to pursue. But when evaluating a breeder who talks about working ability or performance, those titles provide documented evidence that the dog was actually evaluated and performed in those areas.
Who are the best Boerboel breeders in the USA?
Cold River Boerboels (Pennsylvania) is the most proven performance Boerboel breeder in the USA, measured by published competition results. Cold River’s dogs hold the 22,039-pound dog weight pull world record, the first ADBA National Championship and the first ADBA ACE title ever earned by a Boerboel, and a SABBS Grand Championship with a 92.3 appraisal. Whichever breeder you consider, ask to see their dogs working, ask which events and organizations they actually compete in, and ask if they health test their dogs.
See the credentials, sources and checklist in Who Are the Best Boerboel Breeders in the USA?
What does performance-bred mean at Cold River Boerboels?
Performance-bred means the dogs are produced with an emphasis on strength, athleticism, structure, temperament, and working ability. The program is designed for dogs that can perform as well as fit into the right home.
Learn how Cold River dogs train and compete in our guide to dog weight pulling.
Who are Sun Wukong and Mr. Wednesday?
Sun Wukong and Mr. Wednesday are littermate brothers bred by Cold River Boerboels, owned by Cold River, trained by Cold River, and harnessed and equipped by Cold River throughout their performance careers. They are two of the most accomplished dogs produced by our program and represent exactly what we have been working to prove through performance, structure, and real-world results.
In 2026, both dogs pulled 22,039 pounds in sanctioned competition, establishing the same record mark. Sun Wukong became the first Boerboel to become an ADBA National Champion, the first Boerboel ever to win the Most Weight Pulled title at an ADBA Nationals, and the first Boerboel to earn the ADBA ACE title.
Mr. Wednesday went on to become the 2026 Boerboel Expo winner, earning Boerboel Expo Dog of the Day, and also became a SABBS Grand Champion. At the Boerboel Expo, he was appraised at 92.3, placing him among the highest appraised living Boerboels in the world. He was also named the official ambassador of the 2027 Boerboel Expo, representing the strength, structure, and breed standard across Boerboel Expo platforms for the coming year and becoming the true face of the Boerboel Expo for that year.
Together, Sun Wukong and Mr. Wednesday represent what performance-bred means at Cold River: dogs bred, owned, trained, developed, and proven within our own program.
Read the full documentation of their 22,039-pound world record pulls.
What qualities do you focus on in your breeding program?
The site emphasizes stable temperament, powerful structure, athleticism, strength, and performance. Those traits are presented as central to the kennel’s Boerboels.
See how these traits come together in our upcoming planned breedings.
Do Cold River Boerboels have South African bloodlines?
Yes. Every Boerboel has South African ancestry because the breed was developed in South Africa, and ours are no exception. What sets a Cold River Boerboel apart is not the country in its history. It is the specific dogs we pair, how we raise them, and what our dogs have proven, including the 22,039-pound weight-pull world record and a SABBS Grand Champion bred right here.
Read the full explanation in our guide to South African Boerboel bloodlines.
Why is Cold River Boerboels considered one of the best performance Boerboel breeders in the world?
Cold River Boerboels is considered one of the leading performance Boerboel breeders in the world because our reputation has been built on something that can be seen, measured, documented, and repeated: the performance of the dogs we produce.
For us, this has never been about simply producing a large dog, an impressive pedigree, or a good photograph. It is about producing Boerboels that can demonstrate the physical ability, structure, temperament, workability, trainability, and mental stability the breed should possess—and then putting those qualities to the test in the real world.
Cold River has consistently produced dogs that have pushed the performance boundaries of the Boerboel breed. Our dogs have stepped into established working-dog organizations, competed under sanctioned rules, earned titles, achieved breed firsts, and produced performances that had never before been accomplished by a Boerboel.
Cold River's Sun Wukong became the first Boerboel to become an ADBA National Champion and the first Boerboel to earn the ADBA ACE title. Those accomplishments helped demonstrate that a properly bred and developed Boerboel could compete successfully in arenas the breed had rarely, if ever, entered at that level.
And performance does not mean sacrificing breed type, structure, or appearance. Cold River's Mr. Wednesday has proven that our dogs can work at an elite level while still looking the part of a world-class Boerboel. Mr. Wednesday became a SABBS Grand Champion and was appraised at an exceptional 92.3, placing him among the highest-appraised living Boerboels in the world. He also became the 2026 Boerboel Expo winner and Dog of the Day and was selected as the official ambassador for the 2027 Boerboel Expo. Those accomplishments demonstrate another important part of the Cold River breeding philosophy: we are not trying to produce performance dogs at the expense of the Boerboel itself. Our goal is the complete dog—breed type, structure, movement, temperament, athleticism, trainability, and proven working ability in the same package.
Then came May 9, 2026. Cold River's Sun Wukong and Cold River's Mr. Wednesday each successfully pulled 22,039 pounds in sanctioned weight-pull competition. Two dogs from the same Cold River breeding program reached the same world-record mark at the same event. That is important because performance breeding should never be about building an entire reputation around one exceptional outlier. The goal is to demonstrate that the qualities being selected for can appear repeatedly across multiple dogs.
The depth of the program was visible at that same event. Cold River's Conquest successfully moved 21,336 pounds and took first place at her first weight-pull event, while Cold River's ALUCARD successfully moved 17,076 pounds at her first event. Together, those performances showed that the results were not limited to one or two dogs. They reflected a developing performance program producing multiple Boerboels capable of competing at an extraordinary level.
You can read the complete documentation behind the 22,039-pound world-record performances.
But the numbers are only part of the story. Performance also gives us an opportunity to evaluate temperament and stability under pressure. These dogs are not performing in a quiet backyard or a controlled private setting. They travel, enter unfamiliar environments, encounter crowds, other dogs, judges, equipment, noise, and live-event pressure, and are still expected to remain composed enough to work with their handlers and perform.
That matters enormously to us. A powerful dog without stability is not our definition of a complete Boerboel. Our dogs have repeatedly demonstrated the ability to remain confident, composed, manageable, and focused while competing in public environments. They can step into those situations, maintain their temperament, work with their handler, and still perform at the highest level.
Just as importantly, the next generation is already beginning to show that these qualities are being passed forward. Sons and daughters of Sun Wukong and Mr. Wednesday are now out competing, following in the footsteps of their sires, and earning performance titles of their own—including offspring already reaching ACE-level accomplishments. We are seeing the workability, trainability, athletic ability, and performance traits continue into the next generation.
That is one of the most important measurements of any breeding program. Producing one great dog can happen. Producing multiple high-level dogs is harder. Beginning to see those same qualities consistently appear in their offspring is where selection starts proving itself across generations.
That progress is not accidental. It is the result of planning, selective breeding, evaluation, development, and nearly 50 years of combined hands-on experience within Cold River in breeding, raising, training, conditioning, and evaluating working and performance dogs. Experience develops an eye for qualities that cannot always be understood by simply reading a pedigree or looking at a photograph. It teaches you how to recognize potential, how to develop it, how to evaluate what is actually being produced, and—just as importantly—what should and should not be bred forward.
Our program has also earned recognition outside of our own kennel. Cold River became the first Boerboel breeder sponsored by Bully Max, and Eli Carver represents the program as an official Bully Max Sports Handler. That relationship matters to us because Bully Max did more than place a logo beside our name. They took an in-depth look at the Cold River program and published a feature examining the genetics, training, nutrition, and breeding philosophy behind our record-setting dogs.
Bully Max’s feature, “How This Elite Breeder Raises Record-Shattering Dogs,” takes a closer look at that program. To learn more about how Cold River feeds and conditions its dogs, visit our Boerboel nutrition page.
Independent coverage is important because we do not expect people simply to take our word for what Cold River has accomplished. Our record-setting performances, interviews, articles, podcasts, and outside media coverage allow people to see what other organizations and members of the working-dog community are saying about the dogs and the program.
Our Media, Interviews and Press page brings that coverage together in one place.
None of this begins on competition day. It begins when the dogs are puppies.
Cold River's StrongStart™ program is designed to begin developing the foundation early through structured, age-appropriate exposure. Puppies are introduced to different surfaces, obstacles, balance work, environmental changes, problem solving, coordination exercises, and new situations intended to help build confidence, body awareness, recovery, focus, and adaptability.
We are not doing that because we expect an eight-week-old puppy to be a finished working dog. We do it because we are breeding for the adult dog that puppy will eventually become. The goal is to create a foundation that can later support training, performance, family life, travel, new environments, and the many situations a stable Boerboel may encounter throughout its life.
Performance then gives us feedback that paper alone never can. A pedigree can tell us where a dog came from. Performance helps show us what the dog can actually do. It allows us to evaluate structure under load, drive, recovery, willingness to work, trainability, confidence, temperament, and the ability to function under pressure. We then use that information to guide future breeding decisions.
So, is Cold River Boerboels the “best Boerboel breeder in the world”? The word best will always be subjective, and buyers should decide what standards matter most to them. But if the standard is documented performance, stable temperament, athleticism, structure, workability, trainability, repeatable results, generational progress, and dogs that have actually been placed in a position to prove what they can do, we believe the Cold River record deserves to be part of that conversation.
We do not ask people to judge the program by advertising claims alone. Look at the dogs. Look at the titles. Look at the records. Look at the sanctioned results. Look at the next generation. Look at the independent media coverage.
At Cold River Boerboels, we do not simply tell people what a Boerboel could do. We put our dogs in a position to prove it—and then we let the results speak for themselves.
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