To win a match held in a bounded area by throwing, forcing, or tricking the enemy into stepping out of bounds, thus disqualifying them on a technicality.

Occasionally justified by the rules of the sport - but only a few RealLife sports use it. Another justification is to make the edge of the ring be a BottomlessPit. The RingOutBoss is a subtrope of this where a boss in a videogame has to be defeated by a RingOut.

See also EdgeGravity.
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!!Examples:

[[foldercontrol]]

[[folder:Anime & Manga]]
* In each TournamentArc of ''DragonBall'', this was a valid way of winning...until the Cell Games, when Cell decides to [[StuffBlowingUp nuke the ring from orbit]] so they can keep fighting since Goku's made it so fun to play.
** Note that you have to ''land'' outside the ring to be disqualified. And most of the characters in the show can ''fly''.
* The [[MartialArtsAndCrafts Martial Arts Gymnastics]] tournament in ''RanmaOneHalf''. Notable in that the ring can move on command.
** This is also implied in the Joketsuzoku ("Chinese Amazon") tournament that Ranma interrupted while in China. Getting kicked off the dueling log cost Shampoo the championship, even though she wasn't knocked unconscious.
*** The [[{{Gonk}} "woman"]] she beat just before Ranma ate the prize lost pretty much the same way.
* The TournamentArc of ''YuYuHakusho'' has a similar "destroy the ring so you have to fight to the death" moment.
** Though in the Dark Tournament, you have to be outside the ring for ten seconds (or more accurately, ten counts) to be considered out. Most fights end with somebody dead or unconscious anyway because otherwise they can just climb back into the ring. The exception being [[BookDumb Kuwabara]] who spent most of his counts arguing with his teammate in his first fight, and was later tricked into being warped out of the stadium... [[WhatAnIdiot twice.]]
* Subverted in ''{{Eyeshield 21}}''. With only a few seconds left on the clock and with the Devilbats behind, they have to force themselves out of the field in order to stop the clock. In one special case, Monta [[spoiler: used his catching skills to grab the out of bounds and stop the clock.]]
** The above spoiler is a valid tactic in American football in order to stop the clock.
* This is how [[spoiler: Mori beats Honey]] during their clash during one of the final chapters of ''OuranHighSchoolHostClub''.
* In ''Manga/FutabaKunChange'', this was a rule for the ridiculous tournament held to determine which club the female Futaba would join. [[GenderBender Male Futaba]] accidentally wins one match by knocking a little guy from the Gardening Club out of the ring while fighting a giant carnivorous plant, that guy being his actual opponent.
* In the Dressrosa arc of ''Manga/OnePiece'', this is one of the rules in the Corrida Colosseum tournaments. The young gladiator Rebecca uses that to her advantage, using her speed and Observation Haki to throw her opponents outside the ring. It is noted that she has never injured opponents directly because she always does this.
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[[folder:Live Action--Film]]
* In ''IpMan'', the final fight against General Miura is held on a raised platform with falling off it as a defeat condition. In the sequel, Ip has to take challenges from the other Hong Kong-based masters on a table, with getting off the table as one of the defeat conditions.
* In Film/{{Bloodsport}} and its sequels, knocking or forcing your opponent off the raised fighting platform is an InstantWinCondition.
* In ''Film/TheKarateKid'' (1984) going out of bounds temporarily stops the fight and results in a warning.
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[[folder:Live Action TV]]
* ''AmericanGladiators'' had this as half of the two-part 'Breakthrough and Conquer' event. The 'Conquer' half required the player to force any part of the Gladiator's body out of a round wrestling-style ring within the allotted 10 or 15 seconds. This was probably toughest and often funniest when the female contenders were trying to do it to six-foot tall Sky.
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[[folder:Professional Wrestling]]
* The Battle Royal, where you must toss your opponents out of the ring (over the top rope only) to win. And there are a lot of variations on it (WWE's ''Royal Rumble'', where the entrants enter in sequence, is probably the most well known).
* Inverted with steel cage matches, as one of the ways to win such a match is to ''escape'' the cage. There have been several instances throughout the history of the sport where one wrestler, typically a WrestlingMonster, will throw his opponent through the wall of the cage, giving that wrestler the victory. (This is generally done to keep the monster looking strong while his opponent gains the victory.)
[[/folder]]

[[folder:Real Life]]
* Sumo has a number of ''kimarite'' (winning techniques) and a couple ''hiwaza'' (non-techniques) centered on ring outs, with ''yorikiri'' (frontal force-out) being the most commonly used technique in the entire sport.
* In Wrestling (Greco-Roman and freestyle), causing an opponent to go out of bounds scores you one point.
* Series/RobotWars.
** Ditto the show's video game adaptation.
* Gymnastics floor routines deduct points for stepping out of the ring.
* In Kendo forcing an opponent of bounds results a foul, which can be a round or match winning point. However, "unfair shoving or pushing" of an opponent out gets the pusher a foul. You're going to have to do it with footwork and clever offense.
** The same is true in Western-style fencing.
* In judo, if a contestant is outside the mat for a certain period of time, the match is stopped and restarted with both contestants standing at the center of the mat. Squirming your way off the mat is a perfectly viable tactic for breaking a hold.
* This is usually how fights between male beetles are decided, both in the wild and in the staged beetle fights that are a popular gambling activity in Japan and parts of continental Asia. The beetles generally wrestle on top of a log or branch until one of them is knocked off.
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[[folder:Tabletop Games]]
* In ''TabletopGame/{{BattleTech}}'', a unit that skids or is forced off the map cannot normally return and is considered destroyed or in retreat (usually depending on which edge it was forced off) for victory purposes. This can happen purely by accident or as a result of enemy action -- for instance, a [[HumongousMecha [=BattleMech=]]] at the edge of the map can potentially be simply ''pushed'' off by another. Likewise, units forced into prohibited terrain (i.e., of a type that they could not normally enter of their own volition) may find themselves simply destroyed outright as a result.
[[/folder]]

[[folder:Video Games]]

* Every 3D FightingGame, with some exceptions, have implemented this:
** The ''SuperSmashBros'' series is '''all about''' this trope. The means of defeating the opponent most of the time is to force him or her off the stage, which usually has [[InterestingSituationDuel open boundaries as well as native hazards]]. Additionally, they can be knocked into the sky and turned into a [[ATwinkleInTheSky star]].
** ''VirtuaFighter''. In later installments you have to smash a wall or two first; in the first few installments, before EdgeGravity, it was very easy to ring yourself out by mistake.
** ''VideoGame/MortalKombatDeadlyAlliance, VideoGame/MortalKombatDeception and VideoGame/MortalKombatArmageddon''. Sometimes the Ring Out will just result in the battle moving to a different stage. In the two latter games, some of those stages have [[EverythingTryingToKillYou Death Traps]], so pushing the character to the bounds meant that they lost the round.
** ''SoulCalibur''. Subverted in 3's Chronicles of the Sword mode where ring outs still exist, but don't kill the person. Instead, it inflicts their max HP worth of damage. Also, averted with [[TrueFinalBoss Night]] [[SNKBoss Terror]], who will just fly back into the ring.
* ''DragonBall Z: Budokai'', although only on a stage based on the World Martial Arts Tournament ring.
* ''JumpSuperStars'' lets you get a KO by knocking someone out of the "panels" (after bashing your way through the [[FrameBreak side of the page]]).
* ''VideoGame/TheLegendOfZeldaTwilightPrincess'' has a sumo minigame in which you have to push your Goron opponent out of bounds to win.
** ''[[VideoGame/TheLegendOfZeldaOracleGames Oracle of Seasons]]'' has something similar in a boxing match.
* While you can toss objects and enemies out of bounds in ''PhantomBrave'' and ''MakaiKingdom'', doing so to enemies just increases the remaining enemy levels by the same amount of the monster that was tossed. Any of your allies that get the same treatment, however, are just gone from the field for the remainder of the battle.
* In ''[[DefJamSeries Def Jam: Fight For New York]]'', there are a couple stages with ring out potential. But you have to smash the ring barriers with the opponent's face a few times in order to get them through. Then there's the Subway stage, where a Ring Out is only an instant win if a train is coming.
* The Japanese MegaDrive game ''Aah Harimanda'' is all about sumo wrestling, and, well, the goal is to get the opponent out of the ring.
* Averted in the ''VideoGame/DeadOrAlive'' series; leaving the main section of an arena will frequently cause damage, but the game will still continue until one character is knocked out normally.
** Actually played straight in the original game (part of what contributes to its EarlyInstallmentWeirdness). The outer rim of the ring was an explosive field that would blow up fighters that were knocked down onto it but if you could push your opponent beyond this boundary, you would score a Ring Out victory. The sequel introduced the now-normal "go anywhere" stage design that continues to the most recent installments.
* Each stage of ''Real Bout VideoGame/FatalFury'' (except Geese Tower) had destroyable boundaries at the edges. Getting knocked out (or falling out on your own) rewarded your opponent with a special animation as well as the win for the round.
* ''VideoGame/BattleArenaToshinden'' (with the additional GoodBadBug of the victor being able to fall out of the ring themselves during their VictoryPose). In fact, beating the game on a two-day rental was a fairly mean feat if you once figured out the knack for performing the RingOut trick even up to and on the final boss.
* ''VideoGame/DarkMessiah'' has a kick attack that can send enemies flying a good distance. The game's environments are built in such a way that this move can be more devastating than the best spells or weapons, to the point where 1UP.com dubbed it "The Adventures of Sir Kicksalot Deathboot in the Land of the Conspicuously Placed Spike Racks".
* This is how King Hippo is [=KOed=] in ''PunchOut Wii''.
* The bosses of Castles 1 and 7 in ''VideoGame/SuperMarioWorld'' can only be defeated by knocking them off the platform into the surrounding Lava Pit.
** Similarly, Bullies and Big Bullies in ''Super Mario 64 (DS)'' can only be defeated in the same way.
** Inverted in ''VideoGame/SuperMario64'' with Big Bob-omb. Throwing him off his mountain will restart the battle from the beginning.
* In the ''Bloody Roar'' series, you can choose to have walls around the arena or not; and if you have walls turned on, you can choose whether they're breakable or not. In either case, if you leave the ring, it's an automatic victory for the other player.
* One stage in ''VideoGame/BrutalPawsOfFury'' is a bridge from which you can knock your enemies off.
* In the arena fights with the handmaidens and Mandalorians in ''KnightsOfTheOldRepublic II'' where you are allowed to use the Force, using one of the Force Push line of powers to knock the opponents out of the ring automatically disqualifies them.
* One fight in ''VideoGame/KingsQuestMaskOfEternity'' can only be won by knocking your opponent off of the tower you're fighting on.
* In something like an inversion of LedgeBats, [[VideoGame/GodOfWar Kratos]] can ring out some of his enemies by physically dragging or throwing them across the invisible line that marks their A.I. boundary, while he himself has no such artificial boundaries and is protected against normal pits by EdgeGravity (even when BlownAcrossTheRoom).
* The rooftop levels in most ''TwistedMetal'' games.
* ''VideoGame/PrinceOfPersia2008'' has this. It's how 90% of the mooks are likely to die, given how block-happy they are, and a good way to kill The Hunter. Beating The Warrior tends to require you do this, as well.
* ''{{Magicka}}.'' A lot of the spells [[BlownAcrossTheRoom have more than a little kick to them]].
* One of the stadia in ''Carmageddon'' is a giant tower and you can ram your opponents over the edge. Technically this doesn't result in an automatic write off as it is ''just'' possible to have your car sufficiently powered up to survive the resulting damage, but it is almost impossible to return from without restarting.
* The original ''Franchise/MassEffect'' had open areas where this was a viable strategy. A combination of a Lift and Throw biotic combo at high levels could easily throw an enemy out of the playable area for an instant-kill. The later games also used this to an extent, though limits on leveling your abilities made it harder.
* In ''{{VideoGame/Bomberman 64}}'' pretty much any boss the same size as Bomberman can be defeated this way, by first stunning them with a bomb kick and then picking them up like a bomb and tossing them off the edge of the stage for an instant kill. Amusingly, at least one of the bosses (Orion) is aware of this strategy and will do it to ''you'' if you let him stun you with his green energy wave.
[[/folder]]

[[folder:Western Animation]]
* In ''WesternAnimation/TheLegendOfKorra'' this is an [[JustifiedTrope important]] mechanic of [[FictionalSport pro-bending]]. Forcing an opposing player off the back (and only the back) of the arena and into the [[RuleOfPool surrounding pool]] removes them from the game for the remainder of the round. Forcing all three opposing players off the back in a single round is an InstantWinCondition, which is why, in a best of three rounds format, the third round is always played. It's the only way left to win for a team down two rounds.
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