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A knockout (abbreviated to KO or K.O.) is a fight-ending, winning criterion in several
full-contact Contact sports are sports that emphasize or require physical contact between players. Some sports, such as mixed martial arts, are scored on impacting an opponent, while others, including rugby football, gridiron football and Australian rules f ...
combat sport A combat sport, or fighting sport, is a competitive contact sport that usually involves one-on-one combat. In many combat sports, a contestant wins by scoring more points than the opponent, submitting the opponent with a hold, disabling the oppo ...
s, such as
boxing Boxing (also known as "Western boxing" or "pugilism") is a combat sport in which two people, usually wearing protective gloves and other protective equipment such as hand wraps and mouthguards, throw punches at each other for a predetermined ...
,
kickboxing Kickboxing is a combat sport focused on kicking and punching. The combat takes place in a boxing ring, normally with boxing gloves, mouthguards, shorts, and bare feet to favour the use of kicks. Kickboxing is practiced for self-defense, general ...
,
muay thai Muay Thai ( th, มวยไทย, , ), sometimes referred to as Thai boxing, is a combat sport that uses stand-up striking along with various clinching techniques. This discipline is known as the "art of eight limbs", as it is characterise ...
,
mixed martial arts Mixed martial arts (MMA), sometimes referred to as cage fighting, no holds barred (NHB), and ultimate fighting, and originally referred to as Vale Tudo is a full-contact combat sport based on striking, grappling and ground fighting, incor ...
,
karate (; ; Okinawan pronunciation: ) is a martial art developed in the Ryukyu Kingdom. It developed from the indigenous Ryukyuan martial arts (called , "hand"; ''tii'' in Okinawan) under the influence of Chinese martial arts, particularly Fuj ...
, some forms of
taekwondo ''Taekwondo'', ''Tae Kwon Do'' or ''Taekwon-Do'' (; ko, 태권도/跆拳道 ) is a Korean martial arts, Korean form of martial arts involving punching and kicking techniques, with emphasis on head-height kicks, spinning jump kicks, and fast k ...
and other sports involving striking, as well as fighting-based
video game Video games, also known as computer games, are electronic games that involves interaction with a user interface or input device such as a joystick, controller, keyboard, or motion sensing device to generate visual feedback. This feedba ...
s. A full knockout is considered any legal strike or combination thereof that renders an opponent unable to continue fighting. The term is often associated with a sudden traumatic
loss of consciousness Loss may refer to: Arts, entertainment, and media Music * ''Loss'' (Bass Communion album) (2006) * ''Loss'' (Mull Historical Society album) (2001) *"Loss", a song by God Is an Astronaut from their self-titled album (2008) * Losses "(Lil Tjay son ...
caused by a physical blow. Single powerful blows to the head (particularly the jawline and temple) can produce a cerebral concussion or a
carotid sinus reflex In human anatomy, the carotid sinus is a dilated area at the base of the internal carotid artery just superior to the bifurcation of the internal carotid and external carotid at the level of the superior border of thyroid cartilage. The carotid s ...
with syncope and cause a sudden, dramatic KO. Body blows, particularly the
liver punch A liver shot or liver punch is a punch, kick, or knee strike to the right side of the ribcage that damages the liver. Blunt force to the liver can be excruciatingly painful, and an especially effective shot will incapacitate a person instantly. Thu ...
, can cause progressive, debilitating pain that can also result in a KO. In boxing and kickboxing, a knockout is usually awarded when one participant falls to the canvas and is unable to rise to their feet within a specified period of time, typically because of exhaustion, pain, disorientation, or
unconsciousness Unconsciousness is a state in which a living individual exhibits a complete, or near-complete, inability to maintain an awareness of self and environment or to respond to any human or environmental stimulus. Unconsciousness may occur as the r ...
. For example, if a boxer is knocked down and is unable to continue the fight within a ten-second count, they are counted as having been knocked out and their opponent is awarded the KO victory. In mixed martial arts (MMA) competitions, no time count is given after a knockdown, as the sport allows
submission grappling Submission wrestling, also known as Submission grappling, Submission fighting a form of competition and a general term for martial arts and combat sports that focus on clinch and ground fighting with the aim of obtaining a submission through the ...
as well as ground and pound. If a fighter loses consciousness ("goes limp") as a result of legal strikes, it is declared a KO. Even if the fighter loses consciousness for a brief moment and wakes up again to continue to fight, the fight is stopped and a KO is declared. As many MMA fights can take place on the mat rather than standing, it is possible to score a KO via ground and pound, a common victory for grapplers. In
fighting games A fighting game, also known as a versus fighting game, is a video game genre, genre of video game that involves combat between two or more players. Fighting game combat often features mechanics such as Blocking (martial arts), blocking, grappli ...
such as ''
Street Fighter , commonly abbreviated as ''SF'' or スト (''Suto''), is a Japanese media franchise centered on a series of fighting video and arcade games developed and published by Capcom. The first game in the series was released in 1987, followed by six ...
'' and ''
Tekken is a Japanese media franchise centered on a series of fighting video and arcade games developed and published by Bandai Namco Entertainment (formerly Namco). The franchise also includes film and print adaptations. The main games in the series ...
'', a player scores a knockout by fully depleting the opponent's
health bar Health, according to the World Health Organization, is "a state of complete physical, mental and social well-being and not merely the absence of disease and infirmity".World Health Organization. (2006)''Constitution of the World Health Organiza ...
, with the victor being awarded the round. The player who wins the most rounds, either by scoring the most knockouts or by having more vitality remaining when time expires during each round, wins the match. This differs from combat sports in reality, where a knockout ends the match immediately. However, some fighting games aim for a more realistic experience, with titles like '' Fight Night'' adhering to the rules of professional boxing, although technically they are classified as
sports games A sports video game is a video game that simulates the practice of sports. Most sports have been recreated with a game, including team sports, track and field, extreme sports, and combat sports. Some games emphasize actually playing the sport (s ...
, and share many of the same features as NFL and NBA video games.


Technical knockout

A technical knockout (TKO or T.K.O.), stoppage, or referee stopped contest (RSC) is declared when the referee decides during a round that a fighter cannot safely continue the match for any reason. Certain sanctioning bodies also allow the official attending physician at ringside to stop the fight as well. In many regions, a TKO is declared when a fighter is knocked down three times in one round. In MMA bouts, the referee may declare a TKO if a fighter cannot intelligently defend themselves while being repeatedly struck.


Double knockout

A double knockout, both in real-life
combat sports A combat sport, or fighting sport, is a competitive contact sport that usually involves one-on-one combat. In many combat sports, a contestant wins by scoring more points than the opponent, submitting the opponent with a hold, disabling the oppo ...
and in fighting-based
video game Video games, also known as computer games, are electronic games that involves interaction with a user interface or input device such as a joystick, controller, keyboard, or motion sensing device to generate visual feedback. This feedba ...
s, occurs when both fighters trade blows and knock each other out simultaneously and are both unable to continue fighting. In such cases, the match is declared a draw. In fighting games such as ''
Street Fighter , commonly abbreviated as ''SF'' or スト (''Suto''), is a Japanese media franchise centered on a series of fighting video and arcade games developed and published by Capcom. The first game in the series was released in 1987, followed by six ...
'', '' Dead or Alive'', and ''
Tekken is a Japanese media franchise centered on a series of fighting video and arcade games developed and published by Bandai Namco Entertainment (formerly Namco). The franchise also includes film and print adaptations. The main games in the series ...
'', a draw is counted as a loss for both players.


Physical characteristics

Little is known as to what exactly causes one to be knocked unconscious, but many agree it is related to trauma to the
brain stem The brainstem (or brain stem) is the posterior stalk-like part of the brain that connects the cerebrum with the spinal cord. In the human brain the brainstem is composed of the midbrain, the pons, and the medulla oblongata. The midbrain is co ...
. This usually happens when the head rotates sharply, often as a result of a strike. There are three general manifestations of such trauma: * a typical knockout, which results in a sustained (three seconds or more) loss of consciousness (comparable to general anesthesia, in that the recipient emerges and has lost memory of the event). * a "flash" knockout, when a very transient (less than three seconds) loss of consciousness occurs (in the context of a knock-down) and the recipient often maintains awareness and memory of the combat. * a "stunning", a "dazing" or a fighter being "out on his feet", when basic consciousness is maintained (and the fighter never leaves his feet) despite a general loss of
awareness Awareness is the state of being conscious of something. More specifically, it is the ability to directly know and perceive, to feel, or to be cognizant of events. Another definition describes it as a state wherein a subject is aware of some in ...
and extreme distortions in
proprioception Proprioception ( ), also referred to as kinaesthesia (or kinesthesia), is the sense of self-movement, force, and body position. It is sometimes described as the "sixth sense". Proprioception is mediated by proprioceptors, mechanosensory neurons ...
, balance, visual fields, and auditory processing. Referees are taught specifically to watch for this state, as it cannot be improved by sheer willpower and usually means the fighter is already
concussed A concussion, also known as a mild traumatic brain injury (mTBI), is a head injury that temporarily affects brain functioning. Symptoms may include loss of consciousness (LOC); memory loss; headaches; difficulty with thinking, concentration, ...
and unable to safely defend themselves. A basic principle of boxing and other combat sports is to defend against this vulnerability by keeping both hands raised about the face and the chin tucked in. This may still be ineffective if the opponent punches effectively to the
solar plexus The celiac plexus, also known as the solar plexus because of its radiating nerve fibers, is a complex network of nerves located in the abdomen, near where the celiac trunk, superior mesenteric artery, and renal arteries branch from the abdo ...
. A fighter who becomes unconscious from a strike with sufficient knockout power is referred to as having been ''knocked out'' or ''KO'd'' (''kay-ohd''). Losing balance without losing consciousness is referred to as being ''knocked down'' ("down but not out"). Repeated blows to the head, regardless of whether they cause loss of consciousness, may in severe cases cause
stroke A stroke is a disease, medical condition in which poor cerebral circulation, blood flow to the brain causes cell death. There are two main types of stroke: brain ischemia, ischemic, due to lack of blood flow, and intracranial hemorrhage, hemorr ...
s or
paralysis Paralysis (also known as plegia) is a loss of motor function in one or more muscles. Paralysis can also be accompanied by a loss of feeling (sensory loss) in the affected area if there is sensory damage. In the United States, roughly 1 in 5 ...
in the immediacy, and over time have been linked to permanent
neurodegenerative disease A neurodegenerative disease is caused by the progressive loss of structure or function of neurons, in the process known as neurodegeneration. Such neuronal damage may ultimately involve cell death. Neurodegenerative diseases include amyotrophi ...
s such as
chronic traumatic encephalopathy Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease linked to repeated trauma to the head. The encephalopathy symptoms can include behavioral problems, mood problems, and problems with thinking. The disease often gets worse ...
("punch-drunk syndrome"). Because of this, many physicians advise against sports involving knockouts.


Knockdown

A knockdown occurs when a fighter touches the floor of the ring with any part of the body other than the feet following a hit, but is able to rise back up and continue fighting. The term is also used if the fighter is hanging on to the ropes, caught between the ropes, or is hanging over the ropes and is unable to fall to the floor and cannot protect himself. A knockdown triggers a count by the referee (normally to 10); if the fighter fails the count, then the fight is ended as a KO.Boxing Terminology
''Ringside by Gus''. URL last accessed June 17, 2008.
A flash knockdown is a knockdown in which the fighter hits the canvas but recovers quickly enough that a count is not started.


Knockout records


Top 10 boxers by most KOs

#
Billy Bird Billy Bird (1 January 1899 – 6 February 1951) was a British professional boxer who was active from 1920 to 1948 and boxed in the welterweight division. He fought a recorded 356 times in his 28 year-career and was regarded as one of the most a ...
(138) # Archie Moore (132) #
Young Stribling William Lawrence Stribling Jr. (December 26, 1904 – October 3, 1933), known as Young Stribling, was an American professional boxer who fought from Featherweight to Heavyweight from 1921 until 1933. He was the elder brother of fellow boxer He ...
(129) # Sam Langford (128) # Buck Smith (120) #
Kid Azteca Luis Villanueva Páramo (June 21, 1913 – March 16, 2002) was a Mexican boxer best known as ''Kid Azteca''. Villanueva boxed professionally from 1932 to 1961, making him one of a small number of fighters that fought during four decades. Archie M ...
(114) #
George Odwell George Odwell (15 February 1911 – 11 July 1995) was a British professional boxer who was active from 1930 to 1945 and boxed in the welterweight division. He fought a recorded 210 times in his 15 year-career and is currently ranked 7th on the ...
(111) # Sugar Ray Robinson, Alabama Kid (108) # Peter Maher (107) # Sandy Saddler (103)


Top 10 boxing champions (including interims) by KO percentage

Inactive National Boxing Association, World Colored Boxing Championship as well as list on
List of current world boxing champions This is a list of current world boxing champions. Since at least John L. Sullivan, in the late 19th century, there have been world champions in professional boxing. The first of the current organizations to award a world title was the World Box ...
and
European Boxing Union The European Boxing Union (EBU), formerly known as the International Boxing Union (IBU), is a pan-European governing body that sanctions championship bouts in professional boxing. The EBU governs the most-prestigious continental title in Europe, th ...
. #
Edwin Valero Edwin Valero (3 December 1981 – 19 April 2010) was a Venezuelan professional boxer who competed from 2002 to 2010. He was an undefeated former world champion in two weight classes, having held the WBA super featherweight title from 2006 to 2 ...
, Artur Beterbiev (100%) #
Deontay Wilder Deontay Leshun Wilder (; born October 22, 1985) is an American professional boxer. He held the WBC heavyweight title from 2015 to 2020, making 10 successful defenses. By winning the title, Wilder became the first American world heavyweight ch ...
(98%) #
Alfonso Zamora Alfonso Zamora Quiroz (born 9 February 1954) is a Mexican former professional boxer who competed from 1973 to 1980. He was the Lineal championship, Lineal and World Boxing Association, WBA bantamweight champion, and made five title defenses. As ...
(97%) #
Ángel Acosta Ángel Acosta Gómez (born October 8, 1990) is a Puerto Rican professional boxer who held the WBO light flyweight title from 2017 to 2019. As an amateur, Acosta won the gold medal at the 2010 Central American and Caribbean Games. Early life Ac ...
, Dmitry Kudryashov, Jonathan Guzmán (96%) # Carlos Zárate Serna,
Wilfredo Gomez Wilfredo is a given name which may refer to: *Wilfredo Alicdan (born 1965), Filipino figurative artist *Wilfredo Alvarado (born 1970), Venezuelan football defender *Willy Caballero (born 1981), Argentine football goalkeeper * Wilfredo Caraballo (bo ...
, Frank Bruno (95%) #
Gervonta Davis Gervonta Davis ( ; born November 7, 1994) is an American professional boxer. He has held multiple world championships in three weight classes, including the WBA (Regular) lightweight title since 2019; the IBF super featherweight title in 2017; ...
,
Gerald McClellan Gerald Allen McClellan (born October 23, 1967) is an American former professional boxer who competed from 1988 to 1995. He is a two-time middleweight world champion, having held the WBO title from 1991 to 1992, and the WBC title from 1993 to ...
,
David Haye David Deron Haye (born 13 October 1980) is a British former professional boxer who competed between 2002 and 2018. He held multiple world championships in two weight classes, and was the first British boxer to reach the final of the World Ama ...
(93%) #
Yuniel Dorticos Yuniel Dorticós Pao (born 11 March 1986) is a Cuban professional boxer. He is a two-time former cruiserweight world champion, having held the WBA title from 2017 to 2018 and the IBF title from 2019 to 2020. As of August 2022, he is ranked as ...
, Gary Mason (92%) #
Anthony Joshua Anthony Oluwafemi Olaseni Joshua (born 15 October 1989) is an English professional boxer. He is a two-time former unified world heavyweight champion, having held the WBA (Super), IBF, WBO, and IBO titles twice between 2016 and 2021. At r ...
,
Vitali Klitschko Vitali Volodymyrovych Klitschko (; uk, Віта́лій Володи́мирович Кличко́ ; born 19 July 1971) is a Ukrainian politician and former professional boxer who serves as mayor of KyivIn-Chul Baek (91%) # Aaron Pryor,
Miguel Berchelt Miguel Ángel Berchelt Cervera (born 17 November 1991) is a Mexican professional boxer who held the WBC super featherweight title from 2017 to 2021. Amateur career Berchelt tried out at the age of 16 for the football club he supported as a ch ...
,
George Foreman George Edward Foreman (born January 10, 1949) is an American former professional boxer, entrepreneur, minister and author. In boxing, he was nicknamed "Big George" and competed between 1967 and 1997. He is a two-time world heavyweight champi ...
(89%) # Shannon Briggs,
Khaosai Galaxy Khaosai Galaxy ( th, เขาทราย แกแล็คซี่, born, 15 May 1959) is a Thai former professional boxer who competed between 1980 and 1991. He was also a Muay Thai practitioner. He held the WBA super-flyweight title betw ...
,
Gennady Golovkin Gennadiy Gennadyevich Golovkin ( Cyrillic: ; also spelled Gennady; born 8 April 1982), often known by his nickname "GGG" or "Triple G", is a Kazakhstani professional boxer. He has held multiple middleweight world championships, and is a two-ti ...
, David Benavidez,
Mike Tyson Michael Gerard Tyson (born June 30, 1966) is an American former professional boxer who competed from 1985 to 2005. Nicknamed "Iron Mike" and "Kid Dynamite" in his early career, and later known as "The Baddest Man on the Planet", Tyson is con ...
,
Rocky Marciano Rocco Francis Marchegiano (September 1, 1923 – August 31, 1969; ), better known as Rocky Marciano (, ), was an American professional boxer who competed from 1947 to 1955, and held the world heavyweight title from 1952 to 1956. He is the onl ...
(88%)


Top 10 MMA fighters by most KOs

# Travis Fulton (143) # Igor Vovchanchyn (41) # Travis Wiuff (39) # Luís Santos (38) #
Joe Riggs Joseph Jonathan Riggs (born September 23, 1982) is an American professional bare-knuckle boxer and former mixed martial artist who is currently signed to Bare Knuckle Fighting Championship. A professional competitor since 2001, Riggs formerly c ...
(37) # Paul Daley (35) #
Gilbert Yvel Gilbert Ramon Yvel (born 30 June 1976) is a Dutch professional mixed martial artist. A professional competitor since 1997, Yvel competed in the PRIDE Fighting Championships, Affliction, the UFC, Road FC, the RFA, RINGS, M-1 Challenge, Cage ...
(34) #
Alexander Shlemenko Alexander Pavlovich Shlemenko (russian: Александр Павлович Шлеменко, born 20 May 1984) is a Russian mixed martial artist currently fighting in the Middleweight division. He is most notable for fighting for Bellator Fi ...
(32) # Mirko Filipovic (30) # Melvin Manhoef (29)


Top 10 MMA (champions, challengers) fighters by KO percentage

Fighters from inactive
Pride Fighting Championships PRIDE Fighting Championships (Pride or Pride FC, founded as KRS-Pride) was a Japanese mixed martial arts promotion company. Its inaugural event was held at the Tokyo Dome on October 11, 1997. Pride held more than sixty mixed martial arts eve ...
and active UFC/ Bellator plus champions and former champions from other organizations. # Melvin Manhoef (91%) #
Jimi Manuwa Babajimi Abiola "Jimi" Manuwa (born 18 February 1980) is an American-born English retired mixed martial artist of Nigerian descent who competed in the light heavyweight division of the Ultimate Fighting Championship. Early life Manuwa was born ...
(88%) #
Conor McGregor Conor Anthony McGregor ( ga, Conchúr Antóin Mac Gréagóir; born 14 July 1988) is an Irish professional mixed martial artist. He is a former Ultimate Fighting Championship (UFC) featherweight and lightweight double-champion. He is the first ...
,
Jiri Prochazka Jiri ( ne, जिरी) is a municipality in Dolakha District in the Bagmati Province of central Nepal. At the time of the 2011 Nepal census it had a population of 13,638 people.. Jiri, which lies about 190 kilometers from Kathmandu, is the m ...
, Cain Velasquez,
Yoel Romero Yoel Romero Palacio (born April 30, 1977) is a Cuban professional mixed martial artist and former freestyle wrestler. He currently competes in the Light Heavyweight division for Bellator MMA. Romero formerly competed in the Middleweight divi ...
,
Gilbert Yvel Gilbert Ramon Yvel (born 30 June 1976) is a Dutch professional mixed martial artist. A professional competitor since 1997, Yvel competed in the PRIDE Fighting Championships, Affliction, the UFC, Road FC, the RFA, RINGS, M-1 Challenge, Cage ...
(86%) # Cody Garbrandt,
Justin Gaethje Justin Ray Gaethje (; born November 14, 1988) is an American professional mixed martial artist. He currently competes in the Lightweight division in the Ultimate Fighting Championship (UFC). He is a former Interim UFC Lightweight Champion. As ...
(83%) #
Derrick Lewis Derrick James Lewis (born February 7, 1985) is an American professional mixed martial artist. He currently competes in the Heavyweight division in the Ultimate Fighting Championship (UFC), where he currently holds the record for most knockouts i ...
(81%) # Mirko Filipovic, Mauricio Rua (78%) #
Wanderlei Silva Wanderlei César da Silva ( , , ; born 3 July 1976) is a Brazilian-American former mixed martial artist who competed in Japan's Pride Fighting Championships and the American-based Ultimate Fighting Championship (UFC). He holds the record for the ...
,
Mark Hunt Mark Richard Hunt (born 23 March 1974) is a New Zealand former mixed martial artist and kickboxer of Samoan descent, currently living in Sydney, Australia. Hunt competed in the Ultimate Fighting Championship (UFC) until 2018 and was the w ...
, Cristiane Justino (77%) # Stipe Miocic (76%) # Anthony Johnson, Igor Vovchanchyn (73%) #
Junior Dos Santos Junior dos Santos (; born 30 January 1984) is a Brazilian mixed martial artist and professional wrestler who competes in the Heavyweight division of Eagle FC. As a mixed martial artist, he is a former UFC Heavyweight Champion; as a profession ...
,
Robbie Lawler Robert Lawler (born March 20, 1982) is an American professional mixed martial artist who has been competing since 2001. He is the former UFC Welterweight Champion, former EliteXC Middleweight Champion, and has formerly competed in Strikeforc ...
(71%)


Most consecutive KOs

* Boxing:
LaMar Clark LaMar F. Clark (December 1, 1933 – November 5, 2006) was an American professional boxer who fought in the heavyweight division. He was active from 1958 to 1961 and fought a recorded 46 times in his 3 year-career, mostly in his home state of Uta ...
(42) Note: Considering Clark's unbeaten run of 44–0 with 44 knockouts, one should take into account he faced limited to no opposition; his first bout with a top-ten ranked opponent, who happened to be Bartolo Soni (12–2–1), ended with a TKO loss for him. Two other notable cases of highly questionable consecutive knockout records in boxing history were Peter McNeeley, running 36–1 with 30 knockouts before facing recently paroled
Mike Tyson Michael Gerard Tyson (born June 30, 1966) is an American former professional boxer who competed from 1985 to 2005. Nicknamed "Iron Mike" and "Kid Dynamite" in his early career, and later known as "The Baddest Man on the Planet", Tyson is con ...
(41–1–0), and Richie Melito, who built up a record of 18–0 with 17 knockouts and was dubbed the "White Tyson" before
Bert Cooper Bertram Cooper (January 10, 1966 – May 10, 2019), nicknamed Smokin' Bert Cooper, was an American professional boxer who competed between 1984 and 2012. He fought Evander Holyfield, George Foreman, Riddick Bowe, Michael Moorer, Chris Byrd, Ray M ...
(34–17) stopped him. Less notable but nevertheless mentionable cases include Don Steele, running 41–0 with 38 KOs before facing off Brian Nielsen (38–0), and Faruq Saleem, running 38–0 with 32 KOs before he faced casual actor Shawn McLean (3–4–0).
* MMA: Travis Fulton (10)


Most 1st round KOs and most consecutive 1st round KOs

* Boxing: Peter Maher (50) * Consecutive/Boxing: Ali Raymi (22) * MMA: Travis Fulton (68)
Joe Riggs Joseph Jonathan Riggs (born September 23, 1982) is an American professional bare-knuckle boxer and former mixed martial artist who is currently signed to Bare Knuckle Fighting Championship. A professional competitor since 2001, Riggs formerly c ...
(26) * Consecutive/MMA: Igor Vovchanchyn, Travis Fulton (7)


Top 10 kickboxers by most KOs

# Changpuek Kiatsongrit (178) #
Frank Lobman Frank "The Animal" Lobman (18 November 1953 – 10 June 2021) was a Surinamese-Dutch kickboxer. He was five times the European kickboxing champion and had an astonishing 90% knockout ratio. He beat many notable fighters over his career, such a ...
(100) #
Toshio Fujiwara Toshio Fujiwara (藤原 敏男 ''Fujiwara Toshio'', born March 3, 1948) is a Japanese former kickboxer. Out of 141 professional fights before retiring at age 35, Fujiwara won 126, with a remarkable 99 by knockout; most notably, he was the first n ...
(99) #
Andy Souwer Andy Souwer (born 9 November 1982) is a Dutch former welterweight kickboxer and mixed martial artist. He is a two-time K-1 World MAX champion (2005, 2007) and four-time Shootboxing World tournament champion as well as former It's Showtime 70MAX ...
(98) # Ramon Dekkers (95) # Badr Hari (92) # Fabrice Aurieng (89) #
Mike Zambidis Michalis "Iron Mike" Zambidis ( Greek: Μιχάλης Ζαμπίδης; born 15 July 1980) is a professional Greek kickboxer and martial artist. He is an 18-time World Champion, including former World version W5, SUPERKOMBAT and in a series of ...
(86) #
Branko Cikatic Branko ( Cyrillic script: Бранко; ) is a South Slavic male given name found in all of the former Yugoslavia. It is related to the names Branimir and Branislav, and the female equivalent is Branka. People named Branko include: * Branko Babi ...
(82) # Peter Aerts (81)


Top 10 Kickboxers (champions, challengers) by KO percentage

K-1, K-2 and Glory champions and Grand-Prix Winners as well as champions from other promotions. # Andrew Thomson, Kevin Rosier (100%) #
Ginty Vrede Ginty Vrede (July 18, 1985 – January 28, 2008) was a Dutch kickboxer and 2008 WBC Muaythai Heavyweight World champion. Biography and career Vrede won the WBC Muaythai heavyweight World title by beating the previously unbeaten Shane del Rosario ...
(95%) # Branko Cikatić (94%) #
Mite Yine Mite Yine ( my, မိုက်ရိုင်း; born April 26, 1992) is a Burmese Lethwei fighter who competes in the World Lethwei Championship's Featherweight division. He is a former Lethwei Golden Belt champion, having won the title in ...
, Dennis Alexio,
Abiral Ghimire Abiral Ghimire (Nepali:अबिरल घिमिरे, born 9 September 1999) also known as Abiral Himalayan Cheetah (アビラル・ヒマラヤンチーター) is a Nepalese kickboxer, currently fighting in the super-welterweight division ...
(93%) #
Besim Kabashi Besim Kabashi (February 27, 1976 – December 4, 2011) was a Kosovar-German kickboxer who competed in the light heavyweight, cruiserweight and heavyweight divisions. He began his training in Germany after emigrating from Kosovo and initially com ...
, Alain Ngalani (92%) #
Frank Lobman Frank "The Animal" Lobman (18 November 1953 – 10 June 2021) was a Surinamese-Dutch kickboxer. He was five times the European kickboxing champion and had an astonishing 90% knockout ratio. He beat many notable fighters over his career, such a ...
(91%) #
Benny Urquidez Benny Urquidez (born June 20, 1952) is an American kickboxer, martial arts choreographer and actor. Nicknamed "The Jet", Urquidez was a non-contact karate competitor who later pioneered full-contact fighting in the United States. He made the tra ...
, Dustin Jacoby, Jean-Yves Theriault (90%) # Nicholas Pettas (89%) #
Alessandro Riguccini Alessandro Riguccini (born 25 March 1988 in Florence, Italy) is an Italian boxer, kickboxer and engineer coached by Mexican trainer Fernando Fernandez. Alessandro Riguccini is undefeated in professional boxing with a record of 28 wins with 24 ...
(88%) #
Zack Mwekassa Zack Mwekassa (born 20 January 1984) is a Congolese boxer and kickboxer who fights in GLORY. He is a former Interim Glory Light Heavyweight Champion As of 1 October 2017, he is ranked the #4 light-heavyweight in the world by CombatPress.com. ...
, Ben Edwards, Badr Hari,
Jean-Claude Leuyer Jean-Claude Leuyer (born November 30, 1970), or simply Jean Claude, is an American former heavyweight kickboxer. He was a six-time world champion, holding titles in four different organizations, and competing in sixteen world title fights. He hold ...
(87%)


Boxing's 50 knockout club (professional boxers with 50 or more knockouts)

*
Billy Bird Billy Bird (1 January 1899 – 6 February 1951) was a British professional boxer who was active from 1920 to 1948 and boxed in the welterweight division. He fought a recorded 356 times in his 28 year-career and was regarded as one of the most a ...
138 * Archie Moore 132 *
Young Stribling William Lawrence Stribling Jr. (December 26, 1904 – October 3, 1933), known as Young Stribling, was an American professional boxer who fought from Featherweight to Heavyweight from 1921 until 1933. He was the elder brother of fellow boxer He ...
126 * Sam Langford 126 * Buck Smith 120 *
Kid Azteca Luis Villanueva Páramo (June 21, 1913 – March 16, 2002) was a Mexican boxer best known as ''Kid Azteca''. Villanueva boxed professionally from 1932 to 1961, making him one of a small number of fighters that fought during four decades. Archie M ...
114 *
George Odwell George Odwell (15 February 1911 – 11 July 1995) was a British professional boxer who was active from 1930 to 1945 and boxed in the welterweight division. He fought a recorded 210 times in his 15 year-career and is currently ranked 7th on the ...
111 * Sugar Ray Robinson 108 * Alabama Kid 108 *
Peter Maher (boxer) Peter Maher (born 16 March 1869, in Gunnode, Tuam, County Galway, Ireland – 22 July 1940 in Baltimore, Maryland) was an Irish boxer known for his powerful punch. Early in his career Maher won the 1888 Middleweight Championship of Ireland, ...
107 * Sandy Saddler 103 *
Henry Armstrong Henry Jackson Jr. (December 12, 1912 – October 24, 1988) was an American professional boxer and a world boxing champion who fought under the name Henry Armstrong. Armstrong was one of the few fighters to win in three or more different divisi ...
101 * Joe Gans 100 *
Jimmy Wilde William James Wilde (15 May 1892 – 10 March 1969) was a Welsh professional boxer who competed from 1911 to 1923. He held the IBU world flyweight title in 1916, the EBU European flyweight title twice; firstly in 1914 and again from 1916 to 1 ...
98 *
Jorge Castro (boxer) Jorge Fernando "Locomotora" Castro ( es, link=no, locomotive) (born August 18, 1967) is an Argentine boxer and former middleweight champion of the world, who is best known for his second defense of the title against John David Jackson in 1994. E ...
90 * Tiger Jack Fox 89 *
Jock McAvoy Joseph Patrick Bamford (20 November 1908 – 20 November 1971), better known by his ring name Jock McAvoy, was a British boxing, boxer who fought from 1927 to 1945. He held the British Empire Middleweight Championship from 1933 to 1939, and t ...
88 *
Julio César Chávez Julio César Chávez González (; born July 12, 1962), also known as Julio César Chávez Sr., is a Mexican former professional boxer who competed from 1980 to 2005. A multiple-time world champion in three weight divisions, Chávez was list ...
86 * Yori Boy Campas 83 * Chalky Wright 83 * Tommy Freeman 83 *
Jose Luis Ramirez Jose is the English transliteration of the Hebrew and Aramaic name ''Yose'', which is etymologically linked to ''Yosef'' or Joseph. The name was popular during the Mishnaic and Talmudic periods. * Jose ben Abin * Jose ben Akabya *Jose the Galil ...
82 *
Charles Ledoux Charles Ledoux (27 October 1892 – 21 May 1967) was a French bantamweight boxer who was active from 1909 to 1926. While never capturing a world title, he squared off against the best opposition available to him both nationally and internation ...
81 *
Ted Kid Lewis TED may refer to: Economics and finance * TED spread between U.S. Treasuries and Eurodollar Education * ''Türk Eğitim Derneği'', the Turkish Education Association ** TED Ankara College Foundation Schools, Turkey ** Transvaal Education Depart ...
80 *
Fritzie Zivic Fritzie Zivic (May 8, 1913 – May 16, 1984), born as Ferdinand Henry John Zivcich ( hr, Živčić), was an American boxer who held the world welterweight championship from October 4, 1940, until July 29, 1941. His managers included Luke Carney, ...
80 *
Rubén Olivares Rubén Olivares Avila (born January 14, 1947) is a Mexican former professional boxer and a member of the International Boxing Hall of Fame., Olivares was a world champion multiple times, and considered by many as the greatest bantamweight champio ...
79 * George Godfrey 77 * George Chaney 76 * Torpedo Billy Murphy 76 *
Ceferino Garcia Ceferino Montano Garcia (August 26, 1906 – January 1, 1981) was a champion boxer born in Naval, Biliran, Philippines. He holds the most victories ever achieved by a Filipino boxer and is also the only boxer from the Philippines to become world ...
74 *
Primo Carnera Primo may refer to: People *DJ Premier (born 1966), hip-hop producer, sometimes goes by nickname Primo *Primo Carnera (1906–1967), Italian boxer, World Heavyweight champion 1933–1934 * Primo Cassarino (born 1956), enforcer for the Gambino cr ...
72 * Benny Bass 72 *
Rodolfo Gonzalez (boxer) Rodolfo is a given name. Notable people with the name include: * Rodolfo (footballer, born 1992), Brazilian footballer Rodolfo José da Silva Bardella * Rodolfo Albano III, Filipino politician * Rodolfo Vera Quizon Sr. (1928-2012), Filipino actor ...
71 *
Tommy Ryan Tommy Ryan (born Joseph Youngs; March 31, 1870 – August 3, 1948) was an American World Welterweight and World Middleweight boxing champion who fought from 1887 to 1907. His simultaneously holding records in both weight classes was a rar ...
71 *
Roberto Durán Roberto Durán Samaniego (born June 16, 1951) is a Panamanian former professional boxer who competed from 1968 to 2001. He held world championships in four weight classes: lightweight, welterweight, light middleweight and middleweight, as ...
70 *
Benny Leonard Benny Leonard (born Benjamin Leiner; April 7, 1896 – April 18, 1947) was a Jewish American professional boxer who held the world lightweight championship for eight years, from 1917 to 1925. Widely considered one of the all-time greats, he was r ...
70 *
Jesus Pimentel Jesus, likely from he, יֵשׁוּעַ, translit=Yēšūaʿ, label=Hebrew/ Aramaic ( AD 30 or 33), also referred to as Jesus Christ or Jesus of Nazareth (among other names and titles), was a first-century Jewish preacher and religious ...
68 *
Fred Fulton Fred Tobias Fulton, nicknamed "The Rochester Plasterer", (April 19, 1891 – July 7, 1973) was an American heavyweight professional boxer. Biography He was born in Blue Rapids, Kansas on April 19, 1891. Fulton made his professional debut in 1 ...
68 * Earnie Shavers 68 *
George Foreman George Edward Foreman (born January 10, 1949) is an American former professional boxer, entrepreneur, minister and author. In boxing, he was nicknamed "Big George" and competed between 1967 and 1997. He is a two-time world heavyweight champi ...
68 *
Joe Jeanette Joe or JOE may refer to: Arts Film and television * ''Joe'' (1970 film), starring Peter Boyle * ''Joe'' (2013 film), starring Nicolas Cage * ''Joe'' (TV series), a British TV series airing from 1966 to 1971 * ''Joe'', a 2002 Canadian animated ...
68 *
Bill Brennan (boxer) Bill Brennan (June 23, 1893 – June 15, 1924) was an American boxer who fought and lost to World Heavyweight Champion Jack Dempsey in a well attended title fight that ended in a twelfth-round knockout on December 14, 1920, in Madison Square Gar ...
68 *
Lou Brouillard Lucien Pierre Brouillard, better known as Lou Brouillard, (May 23, 1911 – September 14, 1984), was a Canadian professional boxer who held the World Welterweight Title and a version of the World Middleweight Title.
67 * Tommy Gomez 67 * Pedro Carrasco 66 *
Billy Petrolle William Michael Petrolle (January 10, 1905 – May 14, 1983) was a world lightweight boxing title contender. Boxing ran in the Petrolle family as his brothers Pete and Frank also shared his occupation.
66 * Marcel Cerdan 66 * Jack Dillon 66 * Lee Savold 65 * Willie Pep 65 * Elmer Ray 64 *
George Chuvalo George Louis Chuvalo, CM (born September 12, 1937 as Jure Čuvalo) is a Canadian former professional boxer who was a five-time Canadian heavyweight champion and two-time world heavyweight title challenger. He is known for having never been kno ...
63 * Carlos Zárate Serna 63 * Frank Moody 63 *
Eduardo Lausse Eduardo Jorge Lausse (November 27, 1927 – May 8, 1995) was an Argentinian middleweight contender, known for his knockout punch, who boxed from 1947 to 1960. He was a southpaw who fought mainly in South America. His career record was 75 w ...
62 * Alexis Argüello 62 *
Jack Kid Berg Judah Bergman, known as Jack Kid Berg or Jackie Kid Berg (28 June 1909 – 22 April 1991), was an English boxer born in the East End of London, who became the World Light Welterweight Champion in 1930. Biography Judah Bergman was born in Rom ...
61 * Barbados Joe Walcott 61 * Larry Gains 61 * Adilson Rodrigues 61 *
Mickey Walker (boxer) Edward Patrick "Mickey" Walker (July 13, 1903 (some sources indicate 1901) – April 28, 1981) was an American professional boxer who held both the world welterweight and world middleweight championships at different points in his career. Born ...
60 * Freddie Steele 60 * Ike Williams 60 * Cleveland Williams 60 *
Gregorio Peralta Gregorio Manuel Peralta (May 8, 1935 – October 3, 2001), better known as Gregorio "Goyo" Peralta, was a top Argentine boxer. Peralta enjoyed success as both a light heavyweight and a heavyweight, one of a select group Latin American Heavywei ...
60 *
Tami Mauriello Stefano "Tami" Mauriello (May 24, 1923 – December 3, 1999) was an American professional boxer and actor of Italian descent who was world ranked in two divisions during the 1940s. He thrice challenged for world titles, fighting Gus Lesnevich (t ...
60 *
Max Baer (boxer) Maximilian Adelbert Baer (February 11, 1909 – November 21, 1959) was an American professional boxer who was the world heavyweight champion from June 14, 1934, to June 13, 1935. Two of his fights (a 1933 win over Max Schmeling and a 1935 loss ...
59 * Young Peter Jackson 59 * Carlos Monzon 59 * Joe Knight (boxer) 59 * Ricardo Moreno 59 *
Panama Al Brown Alfonso Teofilo Brown (July 5, 1902 – April 11, 1951), better known as Panama Al Brown, was a Panamanian professional boxer. He made history by becoming boxing's first Latin American world champion, and is widely regarded as one of the greate ...
59 * Kid Pascualito 59 * James Red Herring 58 * Eric Esch 58 * Tony Galento 57 * John Henry Lewis 57 * Pascual Perez (boxer) 57 *
Charley White Charley White who was born Charles Anchowitz on 25 March 1891 in Liverpool, England was considered one of the best boxers of his era. White fought from 1906 until 1923. He made one ill-fated comeback attempt in 1930, but was ignominiously TK ...
57 *
Kid Williams John Gutenko (December 1, 1893 – October 18, 1963) was a Ukrainian-born American boxer of Danish and Polish heritage who fought under the name Kid Williams and was known as the Baltimore Tiger, he knocked out Johnny Coulon in Vernon, Californi ...
57 *
Len Harvey Leonard Austen Harvey (11 July 1907 – 28 November 1976) was a British boxer. A great defensive boxer, he boxed at every weight division available at the time, from flyweight to heavyweight. He became the light-heavyweight and heavyweight cha ...
57 * Jose Luis Castillo 57 * Bob Fitzsimmons 57 *
Tiger Flowers Theodore "Tiger" Flowers (August 5, 1895 – November 16, 1927) was an American professional boxer. Nicknamed "The Georgia Deacon", he rose to prominence in the early 20th century, becoming the first African-American World Middleweight Boxing ...
56 *
Georges Carpentier Georges Carpentier (; 12 January 1894 – 28 October 1975) was a French boxer, actor and World War I pilot. He fought mainly as a light heavyweight and heavyweight in a career lasting from 1908 to 1926. Nicknamed the "Orchid Man", he stood and h ...
56 * Pedro Montanez 56 *
Irish Bob Murphy Irish Bob Murphy (July 22, 1922 – August 17, 1961) was an Irish-American light heavyweight boxer who fought from 1945 to 1954. He was born Edwin Lee Conarty in Flagler, Colorado, but fought out of San Diego, California. In 2003, Murphy, w ...
56 * Charles Kid McCoy 55 * Dixie Kid 55 * Gorilla Jones 55 * Freddie Mills 55 *
Manuel Ortiz (boxer) Manuel Ortiz (July 2, 1916 – May 31, 1970) was an American professional boxer in the bantamweight division and one of the very best boxers of the 1940s, and was named to Ring Magazine's list of the 80 Best Fighters of the Last 80 Years. In 1 ...
54 * Marcel Thil 54 *
Solly Krieger Solly Krieger (March 28, 1909 – September 24, 1964) was an American middleweight boxer who fought from 1928–1941. He held the NBA World Middleweight Championship in 1938–39. Krieger, who was Jewish, was inducted into the International Jew ...
54 *
Jose Napoles Jose is the English transliteration of the Hebrew and Aramaic name ''Yose'', which is etymologically linked to ''Yosef'' or Joseph. The name was popular during the Mishnaic and Talmudic periods. *Jose ben Abin *Jose ben Akabya *Jose the Gali ...
54 * Bennie Briscoe 53 *
Obie Walker Obie Walker (September 19, 1911 - May 23, 1989), born Obie Dia Walker in Cochran, Georgia, was a professional boxer. Walker was the penultimate World Colored Heavyweight Champion from 9 October 1933, when he out-decisioned title holder George Go ...
53 *
Peter Kane Peter Kane (28 February 1918 – 23 July 1991) was an English flyweight boxer and a world champion in the 1930s. Kane was born in Heywood, Lancashire, on 28 February 1918, but grew up in the town of Golborne, Lancashire, after his family move ...
53 *
Wladimir Klitschko Wladimir Klitschko; an equivalent English spelling is Vladimir Klichko . His full name in uk, label=Ukrainian is, Володимир Володимирович Кличко, Volodymyr Volodymyrovych Klychko, . ( uk, Володимир Вол� ...
53 * Shannon Briggs 53 *
Eugene Criqui Eugene may refer to: People and fictional characters * Eugene (given name), including a list of people and fictional characters with the given name * Eugene (actress) (born 1981), Kim Yoo-jin, South Korean actress and former member of the sin ...
53 *
Joe Louis Joseph Louis Barrow (May 13, 1914 – April 12, 1981) was an American professional boxer who competed from 1934 to 1951. Nicknamed the Brown Bomber, Louis is widely regarded as one of the greatest and most influential boxers of all time. He re ...
52 *
Mike McTigue Mike may refer to: Animals * Mike (cat), cat and guardian of the British Museum * Mike the Headless Chicken, chicken that lived for 18 months after his head had been cut off * Mike (chimpanzee), a chimpanzee featured in several books and documenta ...
52 *
Philadelphia Jack O'Brien Joseph Francis Hagan (better known as Philadelphia Jack O'Brien) (January 17, 1878 – November 12, 1942) was the world light heavyweight boxing champion in 1905 when he defeated Bob Fitzsimmons for the universal world title. Rather than defendi ...
52 *
Lew Jenkins Lew Jenkins (December 4, 1916 – October 30, 1981) was an American boxer and NYSAC and ''The Ring'' lightweight champion from 1940-1941. He was born in Milburn, Texas and was raised during the Great Depression. He began fighting in carnivals an ...
52 * Marvin Hagler 52 *
Rocky Graziano Thomas Rocco Barbella (January 1, 1919 – May 22, 1990), better known as Rocky Graziano, was an American professional boxer and actor who held the World Middleweight title. Graziano is considered one of the greatest knockout artists in boxing hi ...
52 *
Ezzard Charles Ezzard Mack Charles (July 7, 1921 – May 28, 1975), known as the Cincinnati Cobra, was an American professional boxer and World Heavyweight Champion. Known for his slick defense and precision, he is often considered the greatest light heavywei ...
52 * Arturo Godoy 51 * Kid Chocolate 51 *
Packey McFarland Patrick "Packey" McFarland (November 1, 1888 – September 22, 1936) was an American boxer in the lightweight and welterweight divisions. Despite an extraordinary winning record, he was unable to secure a match for either world title. The ' ...
51 * Jimmy Slattery 51 * Abe Attell 51 * Miguel Angel Castellini 51 *
Jorge Vaca Jorge Vaca (born 14 December 1959) is a Mexican former professional boxer who held the World Welterweight Championship. Professional career Vaca turned pro in 1978 and captured the WBC and Lineal welterweight title by beating Lloyd Honeygh ...
51 *
Jorge Paez Jorge is a Spanish and Portuguese given name. It is derived from the Greek name Γεώργιος (''Georgios'') via Latin ''Georgius''; the former is derived from (''georgos''), meaning "farmer" or "earth-worker". The Latin form ''Georgius'' ...
51 * Marco Antonio Rubio 51 *
Charley Burley Charley Burley (September 6, 1917 – October 16, 1992) was an American boxer who fought as a welterweight and middleweight from 1936 to 1950. Archie Moore, the light-heavyweight champion who was defeated by Burley in a 1944 middleweight bout, w ...
50 *
Jose Legra Jose is the English transliteration of the Hebrew and Aramaic name ''Yose'', which is etymologically linked to ''Yosef'' or Joseph. The name was popular during the Mishnaic and Talmudic periods. * Jose ben Abin *Jose ben Akabya *Jose the Gal ...
50 *
Eder Jofre Eder may refer to: People * Eder (surname) * Éder (given name), a Portuguese or Spanish given name *Éder (footballer, born 1986), Brazilian footballer Éder Citadin Martins *Eder (footballer, born 1987), Portuguese footballer from Guinea-Bissau E ...
50


See also

* Boxing styles and technique * Chin (combat sports) * Full contact karate *
Punch (combat) A punch is a striking blow with the fist. It is used in most martial arts and combat sports, most notably boxing, where it is the only type of offensive technique allowed. In sports, hand wraps or other padding such as gloves may be used to pro ...
*
Punching power Punching power is the amount of kinetic energy in a person's punches. Knockout power is a similar concept relating to the probability of any strike to the head to cause unconsciousness or a strike to the body that renders an opponent unable to c ...
*
Taekwondo ''Taekwondo'', ''Tae Kwon Do'' or ''Taekwon-Do'' (; ko, 태권도/跆拳道 ) is a Korean martial arts, Korean form of martial arts involving punching and kicking techniques, with emphasis on head-height kicks, spinning jump kicks, and fast k ...


References


External links


KO statistics of Mike Tyson, Wladimir Klitschko, Earnie Shavers, George Foreman and other heavyweight boxers

All famous MMA knockouts

The differences between knockouts and concussions; a simple discussion for beginning boxers
* https://archive.today/20130505222319/http://www.cyberboxingzone.com/cbzforum/showthread.php?1450-Most-Knockouts-Career {{Boxing Martial arts terminology Boxing rules and regulations