The concept of mutual combat — the idea that two consenting adults should be free to fight each other without criminal liability — is one of the most misunderstood areas of American law. There is no federal mutual combat law, no state that has "legalized" fighting by agreement, and no state where two people can agree to a bout and be immune from prosecution. What exists instead is a handful of consent statutes, one city ordinance, and several self-defense statutes that rule agreed combat out by name.
Which States Have Mutual Combat Laws?
None, if a "mutual combat law" means a law that makes an agreed fight legal. The table below lists every state where there is a specific statute, ordinance or appellate ruling worth knowing about — each one with the source it comes from.
| State | Status | What the law actually says |
|---|---|---|
| Texas | Statutory consent defense | Penal Code §22.06: consent is a defense to assault, aggravated assault and deadly conduct only if the conduct "did not threaten or inflict serious bodily injury" |
| Colorado | Statutory consent defense | C.R.S. 18-1-505(2): consent to bodily injury is a defense only if the injury is "not serious," or is a foreseeable hazard of a lawful athletic contest |
| Washington | No state defense; Seattle city ordinance | Seattle Municipal Code 12A.06.025 targets fighting in a public place that creates a substantial risk to bystanders or property. State courts allow consent only for the foreseeable hazards of a lawful sport (State v. Shelley, 1997) |
| Oregon | No defense; excluded from self-defense | ORS 161.215(1)(c): force that is "the product of a combat by agreement not specifically authorized by law" cannot be justified. New York (§35.15(1)(c)) and Colorado (18-1-704(3)(c)) use the same words |
| California | No defense | People v. Samuels (1967): consent is generally not a defense to assault or battery, outside the ordinary contact of sports |
| New York | No defense | Penal Law §240.20(1): anyone who "engages in fighting" in a way that causes or risks public alarm commits disorderly conduct, whatever the other person agreed to |
| All other states | No mutual combat defense | The traditional rule applies — see below |
The default rule for every other state: a person cannot consent to being beaten. Consent is not a defense to an assault that causes real injury, with one recognised exception — injuries that are a foreseeable part of a lawful sport. That means a licensed, commission-sanctioned bout, not a fight two people agreed to in a parking lot. A few other states copied variants of the same Model Penal Code consent clause Colorado uses; if you need the answer for one specific state, read its criminal code's consent section, not a blog list.
What Is Mutual Combat?
In American courtrooms, "mutual combat" is a description of a fight both people agreed to — and it usually works against the defendant, not for them. A mutual combatant is someone who voluntarily entered a fight, as opposed to a victim who was attacked.
The clearest example is self-defense. California's standard jury instruction (CALCRIM 3471) says a person who "engages in mutual combat" has a right to self-defense only if they genuinely try to stop fighting, make that clear to the opponent, and give the opponent a chance to stop. Oregon, New York and Colorado write the same idea into their statutes. In most states, agreeing to a fight is what costs you the self-defense argument.
Only a few jurisdictions let consent cut the other way, and even there it is narrow:
- The injury must be minor. Texas and Colorado both stop the defense at serious bodily injury.
- It is raised after a charge. Police can still intervene, arrest and charge; the argument is made to a prosecutor or a jury.
- It covers the fighters, not the event. Nothing in any of these laws speaks to promoters, admission or purses.
Is mutual combat legal?
No — and the phrasing is the source of most of the confusion. Mutual combat is not a permission that makes fighting legal. Where consent matters at all, it is a defense raised after a charge, and only when nobody was seriously hurt. Police can still intervene, arrest, and charge; the question is decided at the prosecution and trial stage, not on the street.
Washington State: A Seattle Ordinance, Not a State Law
Washington is the state most people name, and the reason is one city. Seattle Municipal Code 12A.06.025 makes fighting an offence when it happens in a public place and creates a substantial risk of injury to people who are not taking part, or of damage to property. A fight that does neither falls outside that particular ordinance — which is a long way from saying it is legal.
What made it famous
In 2012 Ben Fodor, a mixed martial artist who patrolled Seattle in costume as "Phoenix Jones," was filmed fighting a man downtown while police officers watched. No one was arrested, and the police department pointed to the city's rule when asked why. The video spread, and "mutual combat is legal in Washington" spread with it.
What Washington state law actually allows
- Consent is recognised only in sport. In State v. Shelley (1997), Washington's Court of Appeals accepted that consent can be a defense to assault in athletic competition — limited to conduct that is a reasonably foreseeable hazard of playing — and held that a punch that broke an opponent's jaw during a pickup basketball game was outside it.
- The Seattle ordinance does not bind state prosecutors. An assault charge under state law is available anywhere in Washington, including Seattle.
- Serious injury ends every argument. A broken bone or a head injury turns any fight into a potential felony assault case.
What it does not allow
- Organized fighting events with spectators and admission charges
- Fights resulting in serious bodily injury or death
- Any form of coerced or pressured consent
- Fighting in public spaces where bystanders are endangered — the one thing the Seattle ordinance is written to punish
Texas: The Consent Defense
Texas does not have a "mutual combat law" either, but it has the clearest consent statute in the country. Texas Penal Code Section 22.06(a):
The victim's effective consent or the actor's reasonable belief that the victim consented to the actor's conduct is a defense to prosecution under Section 22.01 (Assault), 22.02 (Aggravated Assault), or 22.05 (Deadly Conduct) if: (1) the conduct did not threaten or inflict serious bodily injury; or (2) the victim knew the conduct was a risk of: (A) his occupation; (B) recognized medical treatment; or (C) a scientific experiment conducted by recognized methods.
How Texas consent works
- It is a defense to prosecution, so it is argued after a charge — it does not stop an arrest
- It fails if the conduct threatened serious bodily injury, not only if it caused it
- It is unavailable when the fight is part of joining or staying in a criminal street gang (§22.06(b))
- The consent has to be "effective" — given freely, by someone able to give it
Limitations
- Nothing in §22.06 covers organizing, promoting or selling tickets to a fight
- One fighter's consent does not protect the people who put the event on
- Gambling on the fight is a separate question under separate law
- Professional combat events still need a licence from the state's combative sports regulator — see how BKFC got licensed
Colorado: A Consent Defense in the Criminal Code
Colorado is the state the "mutual combat" lists usually forget. Section 18-1-505(2) of its criminal code says that when conduct is charged because it causes or threatens bodily injury, consent is a defense only if the injury consented to is not serious, the injury is a reasonably foreseeable hazard of a lawful athletic contest, or the consent establishes a justification.
In practice that puts Colorado close to Texas: a consensual scuffle that ends with a bruise can be defended; a fight that ends in a fracture cannot. Colorado's self-defense statute also carries the "combat by agreement" exclusion (18-1-704(3)(c)), so a fighter who agreed to the fight cannot later call it self-defense. And like every state on this page, the statute says nothing that would reach an unlicensed event.
Oregon: Ruled Out by Name
Oregon regularly appears on online lists of "mutual combat states." Its criminal code says the opposite. ORS 161.215 lists the situations in which a person cannot justify using physical force, and subsection (1)(c) is:
The physical force involved is the product of a combat by agreement not specifically authorized by law.
"Specifically authorized by law" is the licensed-sport exception: a commission-sanctioned bout is authorized, a backyard fight is not. So in Oregon, agreeing to a fight does not help a defendant — it is written into the code as a reason the defendant's force is not justified. Oregon regulates combat sports through its state athletic commission, and that licensed route is the only one the statute leaves open.
Oregon is not alone. The same sentence appears word for word in New York's self-defense statute (Penal Law §35.15(1)(c)) and Colorado's (C.R.S. 18-1-704(3)(c)). Far from being a state where mutual combat is legal, Oregon is one of several where the code names it as the thing that is not.
Why So Many People Think Their State Has a Mutual Combat Law
The belief is far more widespread than the law. Three things drive it:
A single viral video. Seattle police declined to arrest anyone after the 2012 Phoenix Jones fight and cited a city rule. One municipal ordinance, in one city, became "mutual combat is legal in Washington," and then "mutual combat is legal in America."
Confusing a defense with permission. Texas §22.06 and Colorado 18-1-505 are genuine statutes, but they are defenses to assault charges, and both stop at serious bodily injury. A defense you raise after being charged is not the same thing as conduct being lawful.
Lists that copy each other. Many online state lists name Washington, Texas and Oregon together as "mutual combat states." Oregon's own statute says the opposite, and Washington's rule is a city ordinance. When a claim about a law does not come with a statute number or a case name, treat it as a rumour.
The practical consequence: people cite a "mutual combat law" in states that have never had one, and organizers cite it for events that no state's version would cover.
Why Mutual Combat Does Not Protect Fight Clubs
Underground fighting organizations frequently misunderstand these laws. Even where a consent defense exists, it does not protect organized fighting events, for four reasons:
1. Commercial Activity
The consent statutes address the people in the fight. Once admission is charged, purses are paid, or the fight is sold as entertainment, the questions become licensing and promotion — which consent does not answer.
2. Third-Party Liability
Even if fighters could not be convicted of assaulting each other, organizers can face separate exposure depending on the state, including:
- Promoting or holding an unlicensed combat event
- Accomplice liability for an assault
- Unreported income from ticket or stream revenue
3. Serious Injuries
Every consent defense on this page ends at serious bodily injury. In organized fighting, where hard contact is the point, serious injuries are foreseeable.
4. The Licensing System
The one route every state leaves open is the licensed one — Oregon's statute says so in as many words. A defense built for a minor, spontaneous scuffle was never meant to stand in for an athletic commission.
The Intersection with Underground Fighting
For practical purposes, these laws affect underground fighting in the following ways:
- Individual fights between willing adults may be defensible in Texas or Colorado if nobody is seriously hurt — and nowhere else by statute
- Organized events are not protected, regardless of participant consent
- Location matters — Seattle's ordinance is about public places; state assault law applies everywhere
- Outcome matters — a bruise and a hospital visit are legally different fights
If you are considering participating in any form of organized fighting, mutual combat laws are not your legal shield. The proper path is through licensed, sanctioned events with proper insurance and medical oversight. To see how a specific state treats unsanctioned fighting and bare-knuckle, use the is it legal checker; for the country-by-country picture, see is underground fighting legal.
The Bottom Line
No US state has a law that makes a consensual fight legal. Two states have consent defenses that stop at serious injury, one city has an ordinance aimed at public fights, and Oregon, New York and Colorado rule agreed combat out of self-defense by name. None of them — and none were ever intended to — provide legal cover for organized underground fighting events. Anyone relying on "mutual combat" as a defense for participating in or organizing fight events is operating on a fundamental misunderstanding of the law.
This article is for informational purposes only and does not constitute legal advice. Laws change and apply differently to different facts. Consult a licensed attorney in your jurisdiction. Sources checked 2026-09-15.