How MMA Fights End: KO, TKO, Submission, Decision, Draw and No Contest Explained

Image: Lee Brimelow, CC BY 2.0

An MMA fight ends in one of four ways: a finish by knockout or technical knockout, a finish by submission, a verdict from the judges, or a ruling the referee has to make because something went wrong, which covers disqualifications, draws and no contests. The Unified Rules of Mixed Martial Arts, published by the Association of Boxing Commissions and Combative Sports, list every one of them, and most US athletic commissions build their own rulebooks on that text.

Most UFC bouts are three rounds of five minutes with a one-minute rest between rounds. Main events and title fights are scheduled for five. The Unified Rules cap any contest at five rounds or 25 minutes, so a five-round fight that goes the distance is the longest a fighter will ever be asked to work.

A single card shows how the mix works in practice. UFC 331 in Los Angeles on 19 September 2026 produced twelve results: three knockouts, three technical knockouts, one submission and five decisions, three of them split. The rest of this guide takes each result in turn, using the rulebook's own wording and fights you can look up.

A knockout is what most fans picture first: a fighter is hit, goes limp or falls, and the referee waves it off. The rulebook defines it as a referee stoppage because the combatant cannot intelligently defend themselves, and it lists only one cause, strikes. The referee, not the count, ends it: the Unified Rules say the referee is the sole arbiter of a bout and the only person authorised to stop it.

Speed is not a condition. At UFC 331 Sean Sharaf knocked out Gable Steveson with a punch after 12 seconds of the first round, while Arman Tsarukyan needed until 4:56 of round one to finish Maurício Ruffy with an elbow. Both are recorded as knockouts. Raul Rosas Jr. won the UFC Fight Night main event at Meta Apex on 26 September by KO (slam) at 1:38 of round five, so a knockout can also arrive in the last minutes of a five-rounder.

Fans use knockout and technical knockout loosely, and record-keepers do not always draw the line in the same place. What matters for the result is the same: the finisher wins, and the method goes on both fighters' records.

A technical knockout is a referee stoppage because a fighter is not intelligently defending themselves, which is a lower bar than being unconscious. The rules list four referee-stoppage routes: strikes, laceration, corner stoppage and failing to answer the bell. Most TKOs are the first kind, where a fighter is taking unanswered punches, elbows or ground strikes and the referee decides enough is enough.

UFC 331 had three. Patrício Pitbull beat Choi Doo-ho by TKO (punches and elbows) at 3:28 of round one, Ryan Gandra stopped Osman Diaz with punches at 2:04 of round one, and Marlon Vera beat Charles Jourdain in round three at 2:02, recorded as a TKO in which the losing fighter submitted to punches.

That last label catches people out. The fighter told the referee he had had enough while being hit, yet the result is listed as a TKO with a note that he submitted to punches, not as a submission. The rulebook's submission categories, covered next, are about tapping or being put out, not about giving up under strikes.

A submission ends the fight when a fighter gives up or cannot continue because of a legal hold. The Unified Rules recognise three forms: a tap out, where the fighter uses their body to show they no longer wish to continue; a verbal tap out, where they tell the referee, including by screaming in pain or distress; and a technical submission, where a legal hold causes unconsciousness or a broken or dislocated bone or joint.

The technical submission matters because it removes any argument about whether a fighter meant to quit. If a choke puts someone to sleep before they can tap, the submission is complete the moment the referee sees it. At UFC 331 Casey O'Neill armbarred Eduarda Moura at 3:22 of round one in the women's flyweight bout.

The distinction from a TKO is the cause. A fighter who gives up because of a hold has submitted; a fighter who is being struck and stops the fight is a different case, covered above.

A doctor stoppage is a TKO for medical reasons: the ringside physician tells the referee a fighter cannot safely continue, and the referee ends the fight. The rules file laceration, doctor stoppage and loss of control of a bodily function together as medical stoppages. Dustin Poirier beating Conor McGregor at UFC 264 on 10 July 2021 is the best-known modern example: the trilogy fight was called off as a TKO (doctor stoppage) in round one at 5:00, at the T-Mobile Arena in Las Vegas.

Two details in the rulebook are worth knowing. A referee may stop the action to check the effect of a legal strike only when there is a laceration. And a fighter who visibly loses control of a bodily function during a round, which the rules define as vomit, urine or faeces, loses by TKO due to medical stoppage; if it happens between rounds, the ringside physician decides whether the fighter may continue.

A corner stoppage is the fighter's own team ending it. The rulebook lists it as a referee-stoppage TKO, and it is rare because corners usually wait for the doctor or the referee. The clearest UFC example is Georges St-Pierre against B.J. Penn at UFC 94 in Las Vegas on 31 January 2009: Penn's corner signalled the cageside doctor at the end of round four, and the fight was stopped at 5:00 of the fourth as a TKO (corner stoppage).

The fourth referee-stoppage route is failing to answer the bell. If a fighter stays on the stool for the next round, the fight is a TKO for the opponent.

If nobody finishes it, three judges score the fight and the result is a decision. The rulebook defines each version precisely: a unanimous decision is when all three judges score the bout for the same fighter, a split decision is when two judges score it for one fighter and one judge for the other, and a majority decision is when two judges score it for the same fighter and the third scores a draw.

UFC 331 gave a clean lesson. Joshua Van retained the flyweight title against Alexandre Pantoja by unanimous decision over five rounds, with cards of 49-46, 48-47 and 50-45. The margins differ wildly, yet all three judges picked Van, so it is unanimous. Three other bouts on the same night were split: Alonzo Menifield beat Iwo Baraniewski 29-28, 29-28 and 28-29, Robelis Despaigne beat Tai Tuivasa 29-28, 28-29 and 29-28, and Michael Aswell Jr. beat Yoo Joo-sang 29-28, 29-28 and 28-29.

Scoring uses the 10-point must system: the round winner gets 10, the loser nine or less, and a rare even round is 10-10. The rules describe a 10-9 as a close round won by the better strikes or effective grappling, a 10-8 as a round won by a large margin through damage, dominance and duration, and a 10-7 as a round in which a fighter is completely dominated. Our separate guide to the judging criteria covers how those calls are made.

A draw happens when the scorecards cancel out, and the rules name three types. A unanimous draw is when all three judges score it a draw. A majority draw is when two judges score it a draw. A split draw is when all three judges score differently and the totals come out level.

The standard modern example is Tyron Woodley against Stephen Thompson at UFC 205 at Madison Square Garden on 12 November 2016. The fight went the full five rounds and ended as a majority draw, with cards of 47-47, 47-47 and 48-47. Two judges had it level and the third had it 48-47, so the majority ruling was a draw.

A level card can come from rounds that split between the fighters, from a 10-10 round, or from a point deduction cancelling out a lead. Check which of the three judges scored it level: that tells you whether it is a unanimous, majority or split draw.

A technical decision means the fight was stopped early by an accidental foul and the fighter who is ahead on the cards wins. The rulebook sets the test by rounds: if an accidental foul leaves a fighter unable to continue after two of a three-round fight, or three of a five-round fight, has been completed, the fighter ahead on the scorecards wins by technical decision. Partial rounds are scored.

Song Yadong against Henry Cejudo at UFC Fight Night in Seattle on 23 February 2025 shows the threshold at work. An accidental eye poke from Song came at the end of round three of a five-round fight. Cejudo was given the standard five minutes to recover, could not safely continue into round four, and with three rounds complete the scorecards read 30-27, 29-28 and 29-28 for Song. The result was a technical decision win for Song.

A technical draw is the mirror image for an intentional foul. If an intentional foul causes an injury, the bout is allowed to continue and the injury later forces a stoppage after the threshold, the injured fighter wins by technical decision if ahead, but the bout is a technical draw if he is even or behind.

A no contest is declared when an accidental injury stops the fight too early for the scorecards to count. The rulebook puts the line at the same point: if an accidental foul stops the bout before two of three or three of five rounds are complete, the referee rules it a no contest or a disqualification. Had the Song and Cejudo fight been stopped before three rounds were complete, the result would have been a no contest or disqualification, not a win for Song.

A no contest is not a win, loss or draw. It can also come after a fight, when a commission overturns it. Jon Jones beat Daniel Cormier by knockout at UFC 214 on 29 July 2017, but after a failed drug test for Turinabol the California State Athletic Commission changed the result to a no contest.

A disqualification is the punishment for a serious or repeated foul. The rulebook allows it when an injury from an intentional foul is severe enough to end the contest, when multiple fouls have been assessed, or when a fighter shows flagrant disregard for the rules or the referee's commands. The defining case is Jon Jones against Matt Hamill at The Ultimate Fighter 10 Finale on 5 December 2009: Jones landed illegal 12-6 elbows, Hamill could not continue with a dislocated shoulder, and Jones was disqualified at 4:14 of round one. Dana White has argued since that it should have been a no contest.

Instant replay can review a fight-ending sequence, but only after the fight has officially been stopped, and once replay has been used the fight cannot be resumed. The referee's call is final in the moment. The rules allow a review under the local commission's procedure only if a protest is filed claiming a clear rule violation.

If a fight has to stop for a reason unrelated to the fighting, the rulebook says it can go to the scorecards only if two rounds of a three-round bout, or three rounds of a five-round bout, are complete. Otherwise there is no result to score.

For the record, a KO, TKO, submission, disqualification, decision or technical decision gives one fighter a win and the other a loss. A draw or technical draw is recorded as a draw for both. A no contest counts as neither a win, a loss nor a draw. The rulebook's latest amendment was approved on 5 August 2026 with a requested implementation date of November 2027, so commissions adopt changes on their own timetable and local wording can differ.

• Association of Boxing Commissions and Combative Sports: Unified Rules of Mixed Martial Arts (August 2026)
• Wikipedia: UFC 331
• Wikipedia: UFC 264
• Wikipedia: UFC 205
• Wikipedia: UFC 94
• CBS Sports: Song Yadong beats Henry Cejudo after eye poke forces technical decision
• Wikipedia: The Ultimate Fighter: Heavyweights (Finale, Jones vs Hamill)
• Wikipedia: UFC Fight Night: Rosas Jr. vs. Barcelos

What is the difference between a KO and a TKO?

A KO is a referee stoppage because a fighter cannot intelligently defend, from strikes. A TKO is a stoppage because a fighter is not intelligently defending, or for another reason the rules list: laceration, doctor stoppage, corner stoppage or failing to answer the bell. Both count as a win by finish, and fans often use the terms loosely.

What happens if an MMA fight is stopped by an accidental foul?

It depends on how many rounds are complete. If the foul stops the fight before two of three or three of five rounds are finished, the result is a no contest or disqualification. After that point the fighter ahead on the scorecards wins by technical decision, with partial rounds scored.

What is a majority decision in MMA?

A majority decision is when two judges score the fight for the same fighter and the third judge scores it a draw. It differs from a split decision, where two judges pick one fighter and the third picks the other, and from a unanimous decision, where all three judges agree on the winner.

Is a corner stoppage a TKO?

Yes. The Unified Rules list corner stoppage as a technical knockout by referee stoppage, for example when a fighter's team calls it off between rounds. Georges St-Pierre beat B.J. Penn at UFC 94 in January 2009 by TKO (corner stoppage) after Penn's corner signalled the cageside doctor at the end of round four.

What is the difference between a no contest and a draw?

A draw is a scorecard result after the judges have scored the fight, so both fighters get a draw on their record. A no contest means there is no result: it is used when an accidental injury stops a fight too early to score, or when a commission overturns a result. It counts as neither a win, loss nor draw.

How does a disqualification happen in MMA?

A referee can disqualify a fighter when an intentional foul causes an injury severe enough to end the fight, when multiple fouls have been assessed, or when there is flagrant disregard for the rules or the referee's commands. Jon Jones lost by disqualification to Matt Hamill in 2009 for illegal 12-6 elbows.