BKB Bare Knuckle Boxing (formerly BYB Extreme): Everything You Need to Know
Quick Facts
| Detail | Info |
|---|---|
| Founded | 2019 (as BYB Extreme Fighting Series) |
| Rebranded | February 2025 (as BKB Bare Knuckle Boxing) |
| Headquarters | Miami, Florida, USA |
| Co-Founders | Dhafir "Dada 5000" Harris, Mike Vazquez |
| Format | Professional bare-knuckle boxing in a patented Trigon ring |
| Ring | Trigon -- three-sided equilateral triangle, 16 feet per side |
| Weight Classes | Multiple divisions, men's and women's |
| Broadcast | VICE TV, Telemundo Deportes Ahora, talkSPORT (UK), Bally Sports Live |
| Events Held | 51+ numbered events (as of February 2026) |
| Website | bkbbareknuckle.com |
| Streaming | Swerve Combat (free prelims), VICE TV (main cards) |
Overview
BKB Bare Knuckle Boxing is one of the most distinctive combat sports promotions on the planet. Formerly known as BYB Extreme Fighting Series, the organization was built from the ground up in South Florida's backyard fighting scene and has since evolved into a transatlantic bare-knuckle empire with broadcast deals across VICE TV, Telemundo, talkSPORT, and Bally Sports. What sets BKB apart from every other fighting promotion in the world -- including its larger American rival BKFC -- is the Trigon: a patented, three-sided ring shaped like an equilateral triangle with just 16 feet per side, making it the smallest fighting surface in professional combat sports.
The math is violent. Three corners instead of four. A 60-degree acute corner that functions like a dead end. Roughly 187 square feet of total fighting space -- less than half the area of a standard boxing ring. Inside the Trigon, there is nowhere to run, almost nowhere to clinch, and no neutral corners to retreat to. The organization claims a knockout rate above 90 percent in the Trigon, and watching a card makes it easy to believe. Fights end fast, often brutally, and always with the kind of visceral impact that bare-knuckle purists crave.
BKB's roster spans the United States, United Kingdom, Wales, Mexico, and beyond. The promotion stages events in multiple American states, regularly returns to London's indigo at The O2, and has expanded into venues from Hard Rock casinos to converted airplane hangars. With a multi-year VICE TV deal guaranteeing 13 live prime-time events per year, a landmark technology partnership with Bally's Corporation, and the recent signing of former IBF world champion Lee Selby, BKB is positioning itself as the most aggressive growth story in bare-knuckle boxing.
History
The Backyard Era: Dada 5000 and the Miami Scene
To understand BKB, you have to start in the backyards of Perrine, a rough neighborhood in unincorporated Miami-Dade County, Florida. In the mid-2000s, Perrine's backyard fighting scene produced two men who would change combat sports forever. The first was Kevin "Kimbo Slice" Ferguson, whose viral street fight videos made him one of the earliest internet celebrities. The second was Dhafir "Dada 5000" Harris, who came from the same streets, attended the same Miami high school as Kimbo, and for a time worked as his bodyguard.
That backyard scene was documented in the 2015 Netflix film "Dawg Fight," which captured the raw, unregulated fights taking place in Perrine's residential neighborhoods -- a world of chain-link fences, concrete, and violence that existed entirely outside the reach of athletic commissions. The documentary brought national attention to a subculture that had been thriving in South Florida for years.
Dada 5000's own fighting career included a notorious bout against Kimbo Slice at Bellator 149 in February 2016 -- widely regarded as one of the worst fights in MMA history. Both men were exhausted after the first exchange, and the remaining rounds devolved into competitive sleepwalking. Kimbo won by third-round TKO, but Dada collapsed afterward and was rushed to the hospital with cardiac arrest, severe dehydration, and kidney failure. He survived, but the experience ended his fighting career. Instead, he would build something.
BYB Extreme Fighting Series (2019-2024)
In April 2019, Dada 5000 and his partner Mike Vazquez launched BYB Extreme Fighting Series. The promotion was born from the same Miami backyard culture, but with a critical difference: this would be sanctioned, regulated, and professional. No more backyards. No more concrete. Instead, BYB introduced the Trigon -- a patented triangular fighting surface that would become the organization's signature.
BYB held its first event, "Brawl For It All," in 2019 and quickly expanded from South Florida to Denver, Colorado, which became a regular host city through its "Denver Brawl" series. In November 2021, BYB struck a talent exchange with BKB, a UK-based promotion founded in 2012 in Coventry, England. The exchange kicked off at BYB 8, where BKB's Welsh star Barrie Jones knocked out BYB's Luis Melo in the first round -- a statement that the UK roster was not there to participate, but to dominate.
Through 2022, the two organizations hosted 15 trans-continental matchups. The October 2022 event was a landmark: it featured the first sanctioned professional female bare knuckle fight in UK history (Jamie Driver defeating Sonya Dreiling), the first female title match in UK history, and Seth Shaffer winning the inaugural BYB Welterweight title.
The Merger and Rebrand (2024-2025)
In May 2024, BYB Extreme formally acquired BKB, doubling its international roster and gaining a permanent foothold in the UK market, including venue relationships with London's indigo at The O2.
On February 26, 2025, the merged organization announced its new identity: BKB Bare Knuckle Boxing. The rebrand leveraged the UK brand's longer history and stronger name recognition. Just two weeks earlier, the organization had secured its most significant deal: a multi-year media rights agreement with VICE Sports making BKB the first live sports series ever broadcast on VICE TV, with 13 live prime-time events per year. The inaugural broadcast was BYB 37: Denver Brawl IV on February 22, 2025.
The Trigon Ring
The Trigon is not a gimmick. It is the most important design innovation in combat sports in decades, and it is the single feature that makes BKB fundamentally different from every other fighting promotion on earth.
Design and Dimensions
The Trigon is an equilateral triangle with 16 feet per side. The total fighting surface is approximately 110 square feet -- for context, a standard boxing ring measures 400 to 480 square feet, and the UFC Octagon is approximately 750 square feet. The Trigon is, by any measure, the smallest fighting surface in professional combat sports.
The ring features 7-foot-high fences along two sides, with two beveled corners and one 60-degree acute corner that forms the triangle's sharpest point. That tight corner is the Trigon's most distinctive tactical feature. A fighter backed into the 60-degree corner has no room to maneuver, no angle to circle away, and no option but to fight or be finished. It is, functionally, a dead end -- and it produces finishes at a rate that no other fighting surface can match.
The Patent
BYB's parent company, Lights Out Productions, filed for a patent on the triangular design in 2015, which was granted December 19, 2017. The organization holds two design patents, two copyright registrations, and two European design registrations, along with numerous trademarks. When Triller Fight Club launched "Triad Combat" in 2021 using a similar triangular ring, BYB sued. A federal judge denied Triller's motion to dismiss -- a significant legal victory affirming the Trigon's protected status.
The Knockout Rate
BKB claims a knockout rate above 90 percent inside the Trigon. While independent verification of that figure is difficult, the underlying logic is sound. The confined space eliminates the kind of distance management and lateral movement that allows skilled defensive fighters to survive in larger rings. In the Trigon, engagement is constant, exchanges are frequent, and the acute corner acts as a finishing trap. Combined with bare-knuckle striking -- where unpadded fists deliver more concentrated impact per punch -- the result is a fighting format that overwhelmingly produces finishes rather than decisions.
Format and Rules
Bout Structure
BKB fights follow bare-knuckle boxing rules with modifications specific to the organization:
- Non-title bouts: 5 rounds of 3 minutes each
- Title bouts: 7 rounds of 3 minutes each
- Women's bouts: Same round structure but with 2-minute rounds
- Trigon Combat (amateur): Fought with 7-ounce gloves as a developmental bridge to professional bare-knuckle competition
Striking Rules
The only legal technique in BKB competition is bare-knuckle hand strikes delivered with a clenched fist. Clinching is permitted but punching in the clinch is prohibited -- fighters must break cleanly when instructed by the referee. Elbows, knees, kicks, and any form of grappling or takedown are not allowed.
Hand Wrapping
Fighters may wrap their wrists for structural support, but wrapping is strictly regulated. No tape or gauze may extend past the knuckle when a fist is clenched. No tape or gauze is allowed between or on the fingers, with the exception of a single wrap of tape around the thumb. Wrist wrapping may not extend more than three inches past the wrist juncture. The intent is clear: protect the wrist bones, but leave the knuckles bare.
Knockdown Count
BKB historically used an 18-second count on knockdowns -- longer than the traditional 10-count used in boxing and by rival promotion BKFC. This extended count gives downed fighters more time to recover but also extends the drama of a knockdown sequence.
Protective Equipment
Mouthpieces are mandatory. No round can begin without the fighter's mouthpiece in place. No headgear, shin guards, or other protective equipment is worn.
Weight Classes
BKB operates across multiple weight divisions for both men and women. Title fights have been contested at bantamweight, featherweight, super featherweight, lightweight, welterweight, super welterweight, light heavyweight, cruiserweight, super cruiserweight, bridgerweight, and heavyweight. The women's division includes active titles at super flyweight and welterweight, among others. The merged organization continues to integrate championships from both the original BYB and BKB lineages.
Notable Fighters
Barrie "The Welsh Wrecking Machine" Jones
If BKB has a poster child, it is Barrie Jones. The Welshman carries a flawless 10-0 professional bare-knuckle record with nine knockouts -- a 90 percent finish rate that mirrors the Trigon's own brutal statistics. Jones holds two divisional titles (bantamweight and featherweight) and has beaten every man put in front of him, most emphatically Jimmy Sweeney, whom he defeated twice in 2022.
Jones first appeared on BYB cards through the transatlantic talent exchange in 2021, knocking out BYB's Luis Melo in the first round at BYB 8. That performance announced him as an elite talent, and he has only continued to build on that statement since. Jones is arguably the best active bare-knuckle fighter in the world, a distinction that becomes more credible every time he steps into the Trigon and leaves another opponent on the canvas.
Jimmy Sweeney
The arguable greatest of all time in BKB bare-knuckle boxing. Sweeney is a four-division champion, having held titles at welterweight, super welterweight, and across the former BKB's weight classes. His resume is a who's who of the UK bare-knuckle scene, and his willingness to fight anyone at any weight has earned him a reputation as one of the most game competitors the sport has ever seen.
Sweeney's two losses to Barrie Jones are the only blemishes on an otherwise extraordinary career. Those fights, held at BKB 25 (April 2022) and BKB 28 (September 2022), were the kind of grudge-match spectacles that define a promotion -- two of the best bare-knuckle fighters alive, going at it without gloves in front of a feverish crowd. Jones won both, but Sweeney's legacy extends far beyond those two results.
Jamie "The Red Queen" Driver
Jamie Driver holds the distinction of competing in the first sanctioned professional female bare-knuckle fight in UK history when she defeated Sonya Dreiling in October 2022. She went on to claim the BKB women's welterweight championship and defended it at BKB 50: Evolution in Miami on January 31, 2026, against Bianca "The Diamond" Daimoni. Driver has been instrumental in establishing women's bare-knuckle boxing as a legitimate competitive division rather than a promotional afterthought.
Lee Selby
In February 2026, BKB made its most high-profile signing to date when former IBF featherweight world champion Lee Selby agreed to a multi-fight, multi-year deal. Selby held the IBF world title from 2015 to 2018, successfully defending it five times, and compiled a professional boxing record of 28-4 (9 KOs) over a career spanning 2008 to 2022. Known as "Lightning" and "The Welsh Mayweather," Selby brings elite technical boxing skills and mainstream credibility to the BKB roster.
"I've achieved everything in gloved boxing -- from regional titles to defending my world title five times," Selby said upon signing. "Now, bare knuckle is calling. It's the original, no-filter version of boxing, and I'm excited to bring my speed, skill, and experience to BKB."
Alberto "El Indio" Blas
An undefeated fighter who headlined BKB 50: Evolution in Miami, contesting the super featherweight title against Harold "Lightning" McQueen. Blas represents BKB's growing Latin American roster and the international expansion the promotion is building through its Telemundo partnership.
Events and Venues
BKB has staged over 51 numbered events across multiple countries. Notable recent events include:
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BKB 50: Evolution (January 31, 2026) -- The landmark 50th event at the James L. Knight Center in Miami. Four world title fights headlined, including Jamie Driver's welterweight defense and Alberto Blas vs. Harold McQueen for the super featherweight strap.
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BKB 51: Heavy Lies the Crown (February 21, 2026) -- The return to London's indigo at The O2, headlined by Marko Martinjak vs. Ike Villanueva for the bridgerweight title.
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Bally's Fightnight by BKB: Biloxi (January 9, 2026) -- The debut of BKB's Bally's Corporation partnership at Hard Rock Hotel & Casino Biloxi, featuring sensor-equipped wrist wraps that capture punch metrics in real time.
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BYB 37: Denver Brawl IV (February 22, 2025) -- The first live broadcast on VICE TV, kicking off the multi-year media rights agreement.
The promotion rotates across Miami, Denver, London (indigo at The O2), Wolverhampton, Biloxi, Mexico (Aguascalientes), and Dubai.
How to Watch
BKB has built one of the most comprehensive broadcast networks in bare-knuckle boxing, spanning live television, streaming, and over sixty countries worldwide.
Television
- VICE TV -- The primary U.S. broadcast partner. BKB is VICE TV's first-ever live sports series, with 13 live prime-time events per year, mostly on Saturday nights.
- Telemundo Deportes Ahora -- Live Spanish-language broadcasts as a cornerstone program on Telemundo's 24/7 sports FAST channel.
- talkSPORT -- Live broadcasts in the UK and Ireland.
- Bally Sports Live -- Exclusive partner for Bally's Fightnight activation events, available via the Bally Sports Live app and Stadium channel.
- Additional networks: Estrella TV, BeIN Sports (English and Spanish), FUSE, and Fight Network carry delayed broadcasts.
Streaming
- Swerve Combat -- Free live prelims before VICE TV and Telemundo main cards, plus a curated library of archived BKB fights.
- TrillerTV -- Select events and archival content.
- bkbbareknuckle.com -- Official event schedules, results, and news.
The Bally's Partnership
In late 2025, BKB launched a fully integrated partnership with Bally's Corporation combining proprietary technology, casino venues, and exclusive broadcast distribution. Advanced sensors embedded in fighter wrist wraps capture punch volume, velocity, and impact force in real time, powering live leaderboards, predictive betting, fantasy scoring, and heat maps. Events are staged inside Bally's-owned properties, beginning with Hard Rock Hotel & Casino Biloxi and expanding to additional destinations nationwide. The technology-forward approach positions BKB at the intersection of combat sports and data-driven entertainment.
How to Join
Professional Roster
BKB operates as a curated professional promotion. Fighters are typically recruited based on their professional boxing, MMA, or bare-knuckle records, their competitive reputation, or their performance in BKB's amateur development pipeline. Direct inquiries can be submitted through the official website at bkbbareknuckle.com.
Trigon Combat Amateur Series
In 2025, BKB launched Trigon Combat, a hybrid amateur series designed to develop fighters for the professional bare-knuckle ranks. Trigon Combat serves as the organization's primary pipeline for discovering and developing new talent.
Key details about Trigon Combat:
- Format: Fighters compete in BKB's patented Trigon ring wearing 7-ounce gloves, bridging the gap between gloved boxing and fully bare-knuckle professional competition.
- Sign-up: Interested fighters can register at bkbbareknuckle.com/trigoncombat.
- Tryouts: Open tryouts are held throughout the year across the United States and Mexico. The first U.S. tryout was held in South Carolina in April 2025, and the first Trigon Combat event took place in Aguascalientes, Mexico, in May 2025.
- Pathway: Successful amateur competitors can be elevated to the professional BKB roster.
Trigon Combat represents a significant step for the organization. Unlike Streetbeefs or Strelka, which function as open-to-all amateur platforms, Trigon Combat is a structured development system with a defined endpoint: professional bare-knuckle competition inside the Trigon without gloves, broadcast on national television.
BKB vs. BKFC: How They Compare
BKB and BKFC (Bare Knuckle Fighting Championship) are the two dominant American bare-knuckle promotions, but they are meaningfully different products.
| Aspect | BKB | BKFC |
|---|---|---|
| Founded | 2019 (as BYB Extreme) | 2018 |
| Headquarters | Miami, Florida | Philadelphia, Pennsylvania |
| Ring | Patented Trigon (triangle, 16 ft/side) | Circular pit |
| Round Structure | 5 x 3 min / 7 x 3 min (title) | 5 x 2 min |
| Broadcast | VICE TV, Telemundo, talkSPORT | BKFC app (PPV) |
| Signature Feature | Trigon ring, 90%+ KO rate | Celebrity crossover fights |
| Notable Signings | Lee Selby (IBF champion) | Paige VanZant, Mike Perry |
The fundamental distinction is the ring. BKFC's circular pit allows for traditional boxing footwork. BKB's Trigon eliminates most of that tactical space. The result: BKFC events can go to decision, while BKB events inside the Trigon tend to produce fast, violent finishes.
FAQ
What does BKB stand for?
BKB stands for Bare Knuckle Boxing. The organization was originally known as BYB Extreme Fighting Series (BYB stood for "Backyard Brawl," referencing its Miami backyard fighting origins) before rebranding to BKB Bare Knuckle Boxing in February 2025 following the acquisition of the UK-based promotion of the same name.
Is BKB Bare Knuckle Boxing legal?
Yes. BKB operates as a sanctioned, regulated professional combat sports promotion under the jurisdiction of state and national athletic commissions, with licensed referees and ringside physicians.
What is the Trigon?
The Trigon is BKB's patented triangular fighting ring -- an equilateral triangle with 16 feet per side, making it the smallest fighting surface in professional combat sports. The 60-degree acute corner eliminates neutral corners and dramatically reduces space for evasive movement, producing finishes at an extraordinarily high rate.
Do BKB fighters get paid?
Yes. BKB is a professional promotion and compensates its fighters. Specific purse amounts are not publicly disclosed but vary based on fighter profile, card position, title status, and event significance. This is a key distinction from amateur organizations like Streetbeefs or Strelka, where fighters receive no compensation.
Who is Dada 5000?
Dhafir "Dada 5000" Harris is the co-founder of BKB (originally BYB Extreme). A backyard fighting legend from Miami's Perrine neighborhood, he came from the same scene that produced Kimbo Slice and was featured in the 2015 Netflix documentary "Dawg Fight." After a near-fatal bout against Kimbo at Bellator 149 in 2016, he retired from competition and built BYB Extreme into what is now BKB.
Can I watch BKB for free?
Partially. Live prelims stream for free on Swerve Combat. Main cards air on VICE TV (available through most cable packages) and Telemundo Deportes Ahora. Archived fights and highlights are available on social media and TrillerTV.
How do I become a BKB fighter?
The primary pathway for aspiring fighters is Trigon Combat, BKB's amateur development series. Interested fighters can sign up at bkbbareknuckle.com/trigoncombat. Trigon Combat holds open tryouts across the United States and Mexico, with competitors fighting in the Trigon ring wearing 7-ounce gloves. Successful amateur fighters can be elevated to the professional roster.
Who is the best fighter in BKB?
Barrie "The Welsh Wrecking Machine" Jones holds a strong claim to the title. The two-division champion carries a perfect 10-0 record with nine knockouts and has defeated Jimmy Sweeney -- himself a four-division champion and arguable all-time great -- twice. Among active fighters, Jones is widely regarded as the best pound-for-pound bare-knuckle boxer in the organization.
What happened to BYB Extreme?
BYB Extreme Fighting Series was renamed BKB Bare Knuckle Boxing in February 2025, following BYB's acquisition of the UK-based promotion BKB in May 2024. The rebrand unified both organizations under a single identity. All historical BYB events, fighters, and records are now part of the BKB brand. The old BYB Extreme website at bybextreme.com redirects to bkbbareknuckle.com.