25 Underground Fighting Organizations You've Never Heard Of
You know Streetbeefs. You know KOTS. You have probably seen BKFC on your feed. But the underground fighting world stretches far beyond the organizations that dominate YouTube trending pages. Across six continents, small promotions operate in warehouses, backyards, parking lots, and rented halls -- most with no media coverage, no English-language presence, and audiences measured in the hundreds rather than millions.
These are 25 underground fighting organizations that most fans have never encountered.
1. Holmgang Fighting (Scandinavia)
Inspired by the Viking tradition of holmgang -- a Norse duel fought on a cloak or animal hide laid on the ground -- this Scandinavian organization stages fights on small elevated platforms. Step off the platform and you lose. Fighters compete bare-knuckle with minimal rules, drawing on the region's deep historical connection to ritualized combat.
2. FPVS - Fight Pit Versus (France)
Operating out of industrial spaces in the Paris suburbs, FPVS stages bare-knuckle MMA bouts in a sunken pit roughly three meters in diameter. The sunken design means fighters cannot be pushed out of bounds -- they fight until stoppage. FPVS content circulates primarily on French-language Telegram channels.
3. UUF Denmark (Denmark)
The Underground Ultimate Fighting organization in Denmark fills a niche between the country's strong amateur boxing scene and the no-rules world of KOTS. Fights are bare-knuckle but follow modified MMA rules with standing TKO stoppages. The promotion has quietly built a following in the Copenhagen area since the early 2020s.
4. Spartan Bare Knuckle (UK)
One of several British bare-knuckle promotions operating in the shadow of BKB, Spartan BK stages events in working men's clubs and hired halls across the Midlands. The promotion focuses on giving newcomers their first bare-knuckle experience and has served as a feeder system for larger UK promotions.
5. UBKB - Ultimate Bare Knuckle Boxing (UK)
UBKB has been running events in the UK since the mid-2010s, predating the bare-knuckle boom that BKFC brought to the mainstream. Events are held in small venues with capacities under 500, and the promotion has maintained a loyal regional following without pursuing major media deals.
6. BTTB - Battle to the Bone (Netherlands)
Based in the Netherlands, BTTB stages bare-knuckle boxing events that draw from the country's kickboxing culture. Dutch fighters raised on the K-1 tradition bring a distinctive high-volume striking style to the bare-knuckle format. Events are held in rented sports halls around Amsterdam and Rotterdam.
7. Dawg Pound Fight Club (USA)
Operating in the American South, Dawg Pound runs backyard MMA events styled after Streetbeefs but with a heavier emphasis on grappling and ground fighting. The promotion uses a fenced ring setup in outdoor locations and has built a modest YouTube following in the tens of thousands.
8. Backyard Brawlz (USA)
A Midwest-based backyard boxing promotion, Backyard Brawlz stages gloved boxing matches in residential settings. The production quality is deliberately raw -- single camera, no commentary, no graphics. The appeal is pure, unfiltered fighting between local competitors with real grudges and real bragging rights at stake.
9. Street Kombat (Eastern Europe)
Street Kombat organizes unsanctioned MMA fights in various Eastern European cities, primarily in Poland and the Czech Republic. The promotion borrows the tournament format from Strelka but adds a cage structure. Fighters are often drawn from local gyms looking for experience outside the amateur circuit.
10. Mahatch (Ukraine)
Before the war disrupted operations, Mahatch FC was one of Ukraine's most active underground fighting promotions. Operating out of Kyiv, Mahatch staged bare-knuckle boxing and MMA bouts in basement venues. The promotion's YouTube channel accumulated several million views before going dormant. Some Mahatch fighters have since appeared in Polish and Western European promotions.
11. Kare Kavga (Turkey)
Translating roughly to "bare fight," Kare Kavga operates out of Istanbul and stages unsanctioned MMA bouts in warehouse settings. The promotion draws from Turkey's deep wrestling tradition -- many competitors have Greco-Roman or oil wrestling backgrounds, giving the fights a distinctive grappling-heavy flavor.
12. Favela Fight Club (Brazil)
Brazil's favela fighting scene operates almost entirely outside the reach of English-language media. Multiple informal promotions stage fights in community spaces within Rio and Sao Paulo favelas. Some have developed YouTube channels with Portuguese-language commentary, but most content circulates on WhatsApp and Instagram.
13. Calcio Storico Underground (Italy)
Inspired by Florence's brutal Calcio Storico -- a Renaissance-era sport combining rugby, soccer, and bare-knuckle fighting -- informal groups in Italian cities organize stripped-down versions of the game. These events remove the ball entirely and focus on the hand-to-hand combat element, essentially creating organized group fighting events.
14. Ring of Fire (Australia)
Operating in Western Australia, Ring of Fire stages bare-knuckle boxing events in rural and semi-rural settings. The promotion draws from Australia's tradition of outback boxing tents -- traveling fight shows that toured the country for over a century. Events are invite-only and documented primarily through private social media groups.
15. Fight Circus (Thailand)
Based in Pattaya, Thailand, Fight Circus stages bizarre spectacle fights: mismatched opponents, unusual rules, and carnival-style atmosphere. While technically sanctioned under Thai law, the events exist in a gray area between legitimate Muay Thai promotion and pure underground entertainment. Events have featured fighters of wildly different sizes, novelty rule sets, and tag-team formats.
16. Lagos Fight Nights (Nigeria)
West Africa's underground fighting scene centers on Lagos, where informal boxing events have operated for decades in the Surulere and Mushin neighborhoods. Fighters compete for cash prizes that, while modest by Western standards, represent significant earnings in the local economy. The scene has produced several fighters who eventually entered professional boxing.
17. Strelka Clones (Russia - Various)
Strelka spawned dozens of imitators across Russia. Promotions like Fight Street, Street Wars, and Top Strelka copy the sand-circle format and YouTube distribution model. Most are short-lived, but collectively they represent a significant volume of underground fight content in the Russian-language internet.
18. Bare Fist Boxing (Ireland)
Rooted in the Irish Traveller community's long tradition of fair fights, Bare Fist Boxing operates as a loosely organized circuit of bare-knuckle events across Ireland. These fights carry deep cultural significance within the Traveller community and follow an honor-based code that has been maintained for generations.
19. Rough N Rowdy (USA)
Operating in Appalachian coal country, Rough N Rowdy stages amateur boxing events where untrained fighters compete in short bouts. Popularized by Barstool Sports, the promotion sits at the intersection of entertainment and legitimate amateur boxing. While technically sanctioned, the fighter pool and atmosphere are distinctly underground in character. Watch events at roughnrowdybrawl.com or on their YouTube channel.
20. Myanmar Lethwei Underground (Myanmar)
Beyond the sanctioned lethwei promotions, an underground circuit exists in Myanmar where traditional bare-knuckle fights take place in rural villages. These events follow ancient rules -- headbutts legal, no gloves, fights to the knockout -- and carry cultural and religious significance. Foreign fighters occasionally participate in what amounts to extreme combat tourism.
21. Pelea Callejera MX (Mexico)
Mexican street fighting promotions have developed a significant Spanish-language following on YouTube. Pelea Callejera-style events feature gloved boxing matches in parking lots and open fields, often organized by local boxing gyms as informal smoker events. The line between sanctioned smoker and underground fight card is deliberately blurred.
22. Bare Knuckle Travellers (UK)
Separate from the Irish scene, the English and Welsh Traveller communities maintain their own bare-knuckle fighting traditions. Fights are arranged between families, documented on mobile phones, and shared through private channels. While rarely organized as formal events, these fights follow strict traditional codes and produce fighters of remarkable toughness.
23. Combat Zone (Poland)
Poland's underground MMA scene has grown rapidly alongside the country's legitimate MMA explosion. Combat Zone stages unsanctioned events in rented venues, often drawing fighters who cannot get bouts through official Polish MMA federations. The promotion has produced several fighters who later appeared on KSW undercards.
24. Street Fight Championship (India)
Operating primarily in Delhi and Mumbai, Street Fight Championship stages bare-knuckle and lightly gloved fights in rented halls. The promotion draws from India's traditional kushti wrestling and boxing communities, creating a hybrid fighting style that reflects the country's combat traditions.
25. Toughman Contest Circuit (USA)
The Toughman Contest has operated in various forms across the United States since the 1970s, making it one of the oldest organized amateur fighting circuits in the country. Open to untrained competitors, Toughman events feature short boxing bouts with headgear and oversized gloves. Despite multiple deaths over the decades and significant legal scrutiny, variations of the format continue in rural America. The contest has produced professional boxers, including former heavyweight champion Eric "Butterbean" Esch.
The Invisible Majority
The organizations on this list represent only a fraction of the underground fighting promotions operating worldwide. For every Streetbeefs or KOTS that achieves mainstream visibility, dozens of smaller operations exist -- staging fights in basements and backyards, distributing content through encrypted messaging apps, serving local communities that will never appear on a trending page.
The underground fighting world is far larger than YouTube suggests. These 25 organizations prove that the desire for raw, unfiltered combat is not limited to any single country, culture, or format. It is a global phenomenon, and the organizations most fans have never heard of outnumber the ones they have by orders of magnitude.
For the biggest names in the scene, see our Top 10 Underground Fighting Organizations ranking. To find events you can actually attend, check our guide to underground fighting events near you.
Watch These Organizations
YouTube Channels for the organizations above that have them:
- Streetbeefs -- the Dawg Pound and Backyard Brawlz model
- Strelka -- the original sand circle format
- Mahatch FC -- Ukrainian bare knuckle
- Rough N Rowdy -- Appalachian amateur boxing
- Backyard Squabbles -- LA's answer to Streetbeefs
Related Reading:
- Every Bare Knuckle Organization in 2026 -- the full global list
- New Organizations to Watch in 2026 -- the next wave
- Most Dangerous Fighting Organizations -- ranked by danger level