The Most Watched Underground Fights on YouTube (By Views)
YouTube built the underground fighting industry. Before the platform launched in 2005, underground fights existed as local events witnessed by dozens. YouTube transformed them into global content consumed by millions. The most viewed underground fight videos have accumulated view counts that rival professional sports highlights.
These are the most watched underground fights on YouTube, ranked by total views. View counts are approximate and reflect totals across original uploads and major re-uploads as of early 2026.
15. Top Dog FC -- Best Knockouts Compilation
Estimated Views: 13M+ Organization: Top Dog Why It's Watched: 4K cinematic violence in the hay bale ring
Top Dog's production quality is unmatched in underground fighting -- 4K resolution, multiple camera angles, and state-of-the-art slow-motion that captures every spray of blood in cinematic detail. Their knockout compilation, packaging the most devastating bare-knuckle finishes from the hay bale circle, became one of Russian underground fighting's biggest YouTube exports. The combination of extreme violence and high production values makes Top Dog content look like a film -- which is exactly why it reaches audiences who would never search for backyard fights.
Watch Top Dog Best Knockouts on YouTube
14. KOTS -- Simon "The Savage" Henriksen vs Ronin 030
Estimated Views: 2.7M+ Organization: KOTS Why It's Watched: No-rules fighting on concrete between European hooligans
KOTS fights on concrete with no gloves, no rules, and no rounds. This bout between Denmark's Simon "The Savage" Henriksen and Germany's Ronin 030 is the most-viewed individual KOTS fight on YouTube. The fight delivered on the promise of the format -- raw, unprotected violence between two fighters with real national rivalry behind them. The sound of impacts on the concrete floor is what viewers describe as unforgettable.
13. Streetbeefs -- Mammoth vs Stee
Estimated Views: 14.2M+ Organization: Streetbeefs Why It's Watched: Heavyweight destruction in the backyard
Two of the biggest men to ever step into Satan's Backyard threw bombs until one of them couldn't continue. Mammoth vs Stee became one of Streetbeefs' highest individual view counts because heavyweight fights deliver what the YouTube audience wants -- size, power, and the ever-present possibility of a spectacular knockout. Over 14 million views confirm what Streetbeefs fans already knew: when big men fight in the backyard, the internet watches.
Watch Mammoth vs Stee on YouTube
12. Strelka -- Danil "Regbist" Aleev vs Two MMA Fighters
Estimated Views: 29M+ Organization: Strelka Why It's Watched: One man against two -- and winning
Strelka's most viral content comes from its open-challenge format, and nothing went more viral than Danil "Regbist" Aleev -- a 24-year-old Muscovite -- taking on two MMA fighters simultaneously in the sand circle and winning. The David-vs-Goliath narrative, multiplied by the absurdity of the odds, made this clip irresistible. Nearly 30 million views across platforms, shared by major sports accounts worldwide.
Watch Strelka fights on YouTube
11. BKB -- O2 Arena Bare Knuckle Knockout
Estimated Views: 15M+ Organization: BKB Why It's Watched: Professional-quality bare-knuckle in the triangular pit
BKB's best knockout content competes with professional boxing highlights for views. Their O2 Arena events brought production quality to bare-knuckle fighting that made the finishes feel cinematic. The triangular pit forces close-range exchanges, and without gloves, fights end with sudden, graphic finality that translates perfectly to short-form clips.
10. Streetbeefs -- Blackie Chan vs Meyham
Estimated Views: 17.8M+ Organization: Streetbeefs Why It's Watched: The most-viewed individual knockout on the Streetbeefs channel
Blackie Chan came in 4-0 with solid grappling fundamentals. Meyham came in 0-1 with raw power and something to prove. What followed became the single most-watched knockout in Streetbeefs history -- nearly 18 million views on a fight that was shared by ESPN, picked up by MMA media, and circulated across platforms that had never posted underground fighting content before.
Watch Blackie Chan vs Meyham on YouTube
9. Streetbeefs -- Striker vs Caveman
Estimated Views: 21M+ Organization: Streetbeefs Why It's Watched: Technical striker vs brawler -- the eternal matchup
The most-viewed individual video on the entire Streetbeefs channel. Striker brought technical boxing. Caveman brought forward pressure and raw aggression. The contrast in styles -- precision versus chaos -- is the most reliable formula in underground fighting content. Over 21 million views across six years, accumulated through organic discovery and YouTube's recommendation engine surfacing it to new audiences again and again.
Watch Striker vs Caveman on YouTube
8. Felony Fights Classics
Estimated Views: 35M+ (across re-uploads) Organization: Felony Fights Why It's Watched: Notoriety and controversy
Felony Fights content continues to generate views years after the operation was shut down. The most viewed clips carry a morbid fascination factor -- viewers watch knowing they are witnessing something that resulted in criminal charges. The controversial nature of the content drives engagement even as it repulses. Original uploads have been repeatedly removed, but re-uploads across dozens of channels keep the view count climbing.
7. BKFC Debut Event Highlights (June 2018)
Estimated Views: 38M+ Organization: BKFC Why It's Watched: Historic first sanctioned bare-knuckle event in 129 years
BKFC's first event in June 2018 generated massive interest as the first legal bare-knuckle boxing event in the United States since 1889. Highlights from that debut card continue to accumulate views as new fans discover bare-knuckle fighting and trace its modern history back to the beginning. Since Conor McGregor's ownership stake in 2024, BKFC clips have gained even wider mainstream distribution.
Watch BKFC on their official platform
6. Streetbeefs -- Risky vs Madman Moses
Estimated Views: 8.6M+ Organization: Streetbeefs Why It's Watched: "THE RIGHT HAND" -- ESPN shared this knockout
The right hand landed at 1:38 and Madman Moses folded. ESPN's MMA account shared the clip. TikTok compilations amplified it further. Risky vs Madman Moses embodies the Streetbeefs mission at its most visceral -- two men with genuine beef settling it with fists instead of firearms, producing a knockout so clean it crossed over from the underground audience into mainstream sports media.
Watch Risky vs Madman Moses on YouTube
5. Kimbo Slice vs Big D
Estimated Views: 45M+ (across all uploads) Organization: Informal / backyard Why It's Watched: The fight that launched Kimbo's career
Before Kimbo Slice became a household name, he was Kevin Ferguson fighting in backyards in Miami. His fight against Big D -- raw, brutal, and shot on a handheld camera -- is where the nickname "Slice" was born, after Kimbo opened a vicious cut on Big D's eye. The video spread from Sublime Directory to early YouTube and became one of the platform's first viral sensations. It remains a foundational document of the modern underground scene.
Watch Kimbo Slice vs Big D on YouTube
4. Kimbo Slice Backyard Knockouts Compilation
Estimated Views: 55M+ (across all uploads) Organization: Informal / backyard Why It's Watched: The original viral underground fighter
Compilation videos of Kimbo Slice's backyard fights have accumulated staggering view counts across multiple uploads and re-uploads. Kimbo's physical presence, knockout power, and the raw backyard setting created content that was irresistible to early YouTube audiences. These videos did more to popularize underground fighting than any single organization.
3. Strelka -- Andrei Petrantsov's One-Punch KO
Estimated Views: 24M+ Organization: Strelka Why It's Watched: A truck driver walked in and produced the cleanest KO in Strelka history
Andrei Petrantsov, a KAMAZ truck driver from Bryansk, accepted an open challenge through Strelka's amateur format. What followed was one of the cleanest, most devastating one-punch knockouts ever captured on camera -- 24 million views on YouTube and counting. The clip succeeded because it delivered on the implicit promise of every underground fight video: the possibility that a complete nobody walks in and produces something extraordinary in seconds.
Watch Petrantsov's KO on YouTube
2. Streetbeefs Greatest Knockouts Compilations
Estimated Views: 70M+ (across compilations) Organization: Streetbeefs Why It's Watched: The best moments from the biggest underground channel
Streetbeefs knockout compilations are the most viewed underground fighting content produced by an active organization. With over 4 million subscribers providing a built-in audience, the best-of compilations are amplified by the algorithm and shared across combat sports communities worldwide. The Top 5 STREETBEEFS KOs compilation alone has over 11 million views.
Watch Top 5 Streetbeefs KOs on YouTube
For the best individual knockouts, see our Top 10 Streetbeefs Knockouts.
1. Kimbo Slice: The Backyard Legend
Estimated Views: 80M+ (across all uploads) Organization: Informal / backyard Why It's Watched: The video that started it all
The single most viewed underground fight content in YouTube history traces back to Kimbo Slice. Across original uploads, re-uploads, and documentary clips, Kimbo's backyard fighting footage has been viewed hundreds of millions of times. He is the founding figure of viral underground fighting, and his content remains the genre's all-time viewership champion.
Kimbo Slice proved that underground fighting could command mainstream attention. Every organization on this list exists, in some way, because Kimbo's backyard fights demonstrated that an audience of millions was waiting for this content. For more on Kimbo's legacy, see our evolution of underground fighting timeline.
Watch Jorge Masvidal's backyard fight from the Kimbo era on YouTube
The View Count Arms Race
The most viewed underground fights share common characteristics: knockout finishes, dramatic narratives (size mismatches, rivalries, comebacks), and visual distinctiveness that makes them stand out in a crowded feed.
As production quality improves across the underground scene, individual fight videos are generating higher view counts faster. What took Kimbo years to accumulate in the early YouTube era, modern organizations like BKFC and Streetbeefs can achieve in weeks.
For more viral content, see Most Viral Underground Fight Videos and the Best Underground Fighting YouTube Channels.