7 Underground Fight Clubs You Can Actually Join in 2026
The most frequently asked question in every underground fighting comment section: "How do I sign up?" The answer depends on which organization, what country you are in, your skill level, and how much risk you are willing to accept.
This guide covers seven organizations that actively accept new fighters in 2026. This is informational content, not a recommendation -- fighting carries inherent risk, and underground fighting carries significantly more.
1. Streetbeefs -- The Easiest Entry Point
Location: Harrisonburg, Virginia | Apply: streetbeefshq.com | Requirements: 18+ with valid ID | Pay: None
Streetbeefs is the most accessible underground fighting organization in the world. You do not need a fighting background or connections -- just be 18 with a valid ID and willing to fight. Contact the organization through the website or social media, and matchmakers will pair you with an opponent of similar size and experience.
Fights take place in a backyard with gloves, mouthguards, and referees. No money changes hands, keeping events outside athletic commission jurisdiction. The skill level of your opponent is unpredictable -- you might face a complete novice or someone with professional training. Formats include boxing, kickboxing, MMA, and jiu-jitsu.
2. Strelka -- The Largest Fight Club on Earth
Location: Russia / CIS (50+ cities) | Apply: tronmma.com (international) | Requirements: Amateurs only | Pay: None
Strelka has over 10,000 participants across Russia and the CIS countries -- the largest fight club in the world. International fighters can apply through TronMMA following Strelka's 2025 World Championship expansion to Thailand, Hong Kong, and Singapore.
Fights take place in a sand ring with no rounds. Matchmakers evaluate fighters before pairing them by approximate size and skill. Only amateurs and semi-professionals are allowed -- if you have a professional record, Strelka is not for you. Participants range from truck drivers to lawyers to students.
3. King of the Streets (KOTS) -- For the Fearless Only
Location: Gothenburg, Sweden (events across Europe) | Apply: kingofthestreets.com | Requirements: Screened applications | Pay: Undisclosed
KOTS accepts fighter applications through its website, but applications are screened. Having a fighting background significantly improves selection chances. Event locations are shared via Telegram.
Fights are on concrete with bare hands. No rules, no rounds, no decisions. Headbutts, elbows, and strikes to the back of the head are legal. No medical staff. This is the most dangerous organization on this list by a significant margin. KOTS is not for beginners or anyone unprepared for the possibility of serious injury.
4. King of the Ring (KOTR) -- The UK Alternative
Location: Manchester, UK | Apply: Instagram (@kotr_manny) or kotr.uk | Requirements: 18+ | Pay: None
King of the Ring is Manchester's biggest underground boxing organization, founded by "Remdizz" to counter youth knife violence. The motto: "Put down the knife, use your left and right."
Fighters wear boxing gloves and compete in three one-minute rounds in a ring made of foam-wrapped fence posts. Postcodes are sent via text days before events. Significantly safer than KOTS or Streetbeefs -- short rounds and gloves provide real protection. Featured in a Channel 4 documentary and Vice article.
5. Rough N Rowdy -- The Amateur Spectacle
Location: USA (touring nationally) | Apply: roughnrowdybrawl.com | Requirements: None | Pay: Undisclosed
Rough N Rowdy actively recruits people with zero fighting experience -- bartenders, office workers, anyone willing to step in the ring. Individual cards feature 20 to 50+ fights across 12+ events per year under the Barstool Sports banner.
You apply through the website; if matchmakers like your story or matchup potential, you get a slot. Professional production with commentary from Dave Portnoy and Big Cat, cameras, and medical staff present. The lowest skill requirement on this list, with a fun, party-like atmosphere despite being a real boxing event.
6. Backyard Squabbles -- The Los Angeles Scene
Location: South Los Angeles | Apply: Instagram (@backyardsquabbles) | Requirements: 18+ | Pay: None
Backyard Squabbles emerged during COVID with a Streetbeefs-style mission: "Guns down, squabble up." Applications are handled through Instagram DMs, with fighters matched by size and experience.
Backyard ring with boxing gloves and a community atmosphere. Notable fighters include Albert "Black Blade" Marion, Hector "Aztec Warrior" Herrera, and the sole female fighter Valinda Hernandez. Content also available on TrillerTV.
7. BKFC Tryouts -- The Professional Path
Location: Various US cities | Apply: bkfc.com tryout announcements | Requirements: Combat sports background required | Pay: Professional pay for signed fighters
BKFC holds open tryouts that serve as the pipeline from the underground scene into professional bare knuckle fighting. Requirements are significantly higher -- you need a legitimate boxing, MMA, or kickboxing background. If selected, you sign a professional contract and compete on sanctioned cards with proper medical oversight, athletic commission regulation, and professional pay.
This is the only fully professional option on this list and the destination for anyone serious about a bare knuckle career.
Before You Sign Up
Medical risk is real. Even the safest organizations here operate outside professional medical infrastructure. Concussions, broken bones, and long-term neurological damage are documented risks.
Legal protections vary. Streetbeefs operates on private property outside commission jurisdiction. KOTS operates in legal gray areas. BKFC is fully sanctioned. Understand the legal framework before participating.
Most fighters are not paid. Of these seven, only BKFC and possibly Rough N Rowdy offer confirmed compensation. The rest pay nothing.
Training matters. Even organizations that accept untrained fighters -- invest in basic boxing or MMA training before competing. It dramatically reduces injury risk.
For pay details, see How Much Do Underground Fighters Make?. For organization rankings, see Top 10 Underground Fighting Organizations.