Is Underground Fighting Legal in Australia? The Legal Verdict
No. Underground fighting is illegal in Australia. Combat sport is regulated by each state and territory rather than nationally, and any fight held outside that licensing system is treated under the ordinary criminal law of assault. Consent is generally no defence to a fight that causes serious bodily harm, so an unsanctioned bout exposes fighters and organizers to assault charges. There is no state or territory in Australia that licenses bare-knuckle boxing or no-rules fighting, which means those formats are unlawful everywhere in the country.
The legal verdict, in detail
Australia has no single national combat-sports law. Instead, each state and territory has its own combat-sports authority and legislation. Examples include the Combat Sports Authority of New South Wales (under the Combat Sports Act 2013), the Combat Sports Board in Victoria, and equivalent bodies in Queensland, Western Australia, South Australia, and the other jurisdictions. These authorities register fighters, license promoters, and approve which combat sports may be held and under what rules.
A fight that takes place outside this framework is not a regulated sport in the eyes of the law; it is an assault. The general principle across Australian criminal law, drawn from English common law and confirmed in Australian cases, is that a person cannot consent to the infliction of serious bodily harm except in recognized, lawfully conducted sports. A backyard or warehouse fight is not such a sport, so the fighters' agreement does not make it lawful. Organizers can additionally face charges for offences connected to running the event.
So the verdict is consistent with Canada and stricter than the UK: regulated, commission-sanctioned combat sport is legal; anything underground is treated as assault.
Bare-knuckle and no-rules events
Australian combat-sports authorities license gloved disciplines, boxing, kickboxing, Muay Thai, and MMA among them, under defined rule sets with medical and officiating requirements. They do not license bare-knuckle boxing. No Australian state or territory has adopted bare-knuckle rules in the way more than 30 US states have. That makes a bare-knuckle prizefight unsanctionable, and therefore unlawful, anywhere in Australia as of 2026.
No-rules fighting of the kind documented elsewhere on this site is even further outside the law. With no weight matching, no medical provision, and no referee authority, it cannot be brought inside any state's combat-sports framework, and it sits squarely in assault territory.
State-by-state, in brief
The detail varies, but the bottom line does not:
- New South Wales regulates combat sport under the Combat Sports Act 2013 via the Combat Sports Authority. Unregistered contests are unlawful.
- Victoria licenses through the Combat Sports Board; unsanctioned bouts fall under general assault law.
- Queensland, Western Australia, South Australia, Tasmania, ACT, and the Northern Territory each have their own registration and approval regimes for promoters and contestants.
In every jurisdiction, the same logic applies: if the authority has not approved the contest, it is not lawful combat sport, and a fight causing harm is an assault.
What is actually legal
The lawful routes are the sanctioned disciplines: registered, commission-approved boxing, kickboxing, Muay Thai, and MMA, held by licensed promoters with registered fighters, medical clearance, and officiating. These come with the safeguards underground fights lack.
How this compares
Australia lands near Canada on the spectrum. Where the UK has no statute and no regulator and sits in a gray area, and where more than 30 US states have affirmatively licensed bare-knuckle, Australia regulates combat sport firmly at state level and treats everything outside it as assault. There is no lawful underground fight in Australia, and no bare-knuckle license anywhere in the country.
A note on safety
Beyond the legal exposure, underground fights in Australia carry the familiar physical risks: no pre-fight medicals, no weight matching, no ringside doctor, no insurance. The state-by-state licensing system exists to keep combat in supervised settings where those protections apply. Anyone drawn to fighting has lawful, safer options through the registered disciplines.
FAQ
Is underground fighting illegal in Australia? Yes. Combat sport is regulated by each state and territory, and any fight outside that system is treated as assault, with consent generally no defence to serious harm.
Is bare-knuckle boxing legal in Australia? No. No Australian state or territory licenses bare-knuckle boxing, so bare-knuckle prizefights are unlawful nationwide.
Who regulates fighting in Australia? State and territory combat-sports authorities, such as the Combat Sports Authority of NSW and Victoria's Combat Sports Board, not a single national body.
Can I consent to a backyard fight in Australia? Generally no. Australian law does not allow consent to the infliction of serious bodily harm outside recognized lawful sports, so a backyard fight can be prosecuted as assault.
Related
- Is bare knuckle boxing legal in the UK?
- Is underground fighting legal in Canada?
- Bare knuckle legality by state (US)
This guide describes the general legal position and is not legal advice. Last verified: June 2026.