Ingemar Johansson and Floyd Pattersson 1959

Muhammad Ali fights Brian London on August 6, 1966

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 foot ...

combat sports, such as boxing,

kickboxing Kickboxing is a combat sports, combat sport focused on kicking and punch (strike), 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 pract ...

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 characterised ...

, mixed martial arts,

karate (; ; Okinawan language, Okinawan pronunciation: ) is a martial arts, martial art developed in the Ryukyu Kingdom. It developed from the Okinawan martial arts, indigenous Ryukyuan martial arts (called , "hand"; ''tii'' in Okinawan) under the ...

, some forms of taekwondo and other sports involving

striking Strike may refer to: People *Strike (surname) Physical confrontation or removal *Strike (attack), attack with an inanimate object or a part of the human body intended to cause harm *Airstrike, military strike by air forces on either a suspected ...

, as well as

fighting Combat ( French for ''fight'') is a purposeful violent conflict meant to physically harm or kill the opposition. Combat may be armed (using weapons) or unarmed ( not using weapons). Combat is sometimes resorted to as a method of self-defense, or ...

-based video games. 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 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 ...

with syncope and cause a sudden, dramatic KO. Body blows, particularly the liver punch, 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. 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 fighting, clinch and ground fighting with the aim of obtaining a Submis ...

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 Grappling, in hand-to-hand combat, describes sports that consist of gripping or seizing the opponent. Grappling is used at close range to gain a physical advantage over an opponent, either by imposing a position or causing injury. Grappling i ...

. In fighting games such as '' Street Fighter'' and ''

Tekken is a Japanese Media mix, media franchise centered on a series of fighting game, fighting video and arcade games developed and published by Bandai Namco Entertainment (formerly Namco). The franchise also includes film and print adaptations. The ...

'', 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 health, mental and social well-being and not merely the absence of disease and infirmity".World Health Organization. (2006)''Constitution of the World H ...

, 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 The National Football League (NFL) is a professional American football league that consists of 32 teams, divided equally between the American Football Conference (AFC) and the National Football Conference (NFC). The NFL is one of the major ...

and

NBA The National Basketball Association (NBA) is a professional basketball league in North America. The league is composed of 30 teams (29 in the United States and 1 in Canada) and is one of the major professional sports leagues in the United St ...

video games.

Technical knockout

2017-12-02 Roman Hardok - Jakob Jakobi - DSC2359

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 and in

-based video games, 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'', ''

Dead or Alive Dead or Alive most commonly refers to: * Dead or Alive (band), a British pop band * Dead or alive, a phrase on a wanted poster Dead or Alive may also refer to: Film and television * ''Dead or Alive'' (1921 film), an American silent film dir ...

'', and ''

'', 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. 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 and extreme distortions in proprioception, 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 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 abdomin ...

. 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 medical condition in which poor blood flow to the brain causes cell death. There are two main types of stroke: ischemic, due to lack of blood flow, and hemorrhagic, due to bleeding. Both cause parts of the brain to stop functionin ...

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 50 ...

in the immediacy, and over time have been linked to permanent neurodegenerative diseases such as chronic traumatic encephalopathy ("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 Her ...

(129) # Sam Langford (128) #

Buck Smith Buck Smith (born July 22, 1965) is an American professional boxer in the welterweight division. Although Smith has never been considered more than a journeyman fighter, he is one of boxing's all-time knockout kings with 120 KO's. Professional car ...

(120) # Kid Azteca (114) #

George Odwell George Odwell (15 February 1911 – 11 July 1995) was a British professional Boxing, 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 ...

(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 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, 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 (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 Dmitri Alexandrovich Kudryashov (russian: Дмитрий Александрович Кудряшов, born 13 May 1983) is a Russian football coach and a former player. He is an assistant coach with FC Noah. Club career He made his Russian Prem ...

Jonathan Guzmán Jonathan Guzmán Pena (born July 17, 1989), best known as Jonathan Guzmán, is a Dominican professional boxer who held the IBF junior featherweight title in 2016. Professional career Guzmán made his professional debut on December 18, 2011, ...

(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 (bor ...

, 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 (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 t ...

, 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,

In-Chul Baek In-Chul Baek (born December 20, 1961) is a South Korean former professional boxer who competed from 1980 to 1990. He held the WBA super-middleweight title from 1989 to 1990. Boxing career Baek became a professional boxer in 1980. He won the Or ...

(91%) # Aaron Pryor,

Miguel Berchelt Miguel Ángel Berchelt Cervera (born 17 November 1991) is a Mexican professional boxer Professional boxing, or prizefighting, is regulated, sanctioned boxing. Professional boxing bouts are fought for a purse that is divided between the bo ...

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 champio ...

(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 betwee ...

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-time ...

, 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 cons ...

, Rocky Marciano (88%)

Top 10 MMA fighters by most KOs

# Travis Fulton (143) # Igor Vovchanchyn (41) # Travis Wiuff (39) # Luís Santos (38) # Joe Riggs (37) # Paul Daley (35) # Gilbert Yvel (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 (MMA), Middleweight division. He is most notable for fighti ...

(32) #

Mirko Filipovic Mirko Filipović (; born 10 September 1974), better known by his ring name Mirko Cro Cop, is a retired Croatian professional mixed martial artist, kickboxer and amateur boxer. He is mostly known for his time in Pride Fighting Championships. Cro Co ...

(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 even ...

and active UFC/

Bellator Bellator, warrior in Latin, may refer to: * Bellator MMA, a mixed martial arts promotion based in the United States * Bishop Bellator of Archaeological site of Sbeitla, Sufetula (5th century) Taxonomy * Bellator (fish), ''Bellator'' (fish), a fis ...

plus champions and former champions from other organizations. # Melvin Manhoef (91%) # Jimi Manuwa (88%) # Conor McGregor, Jiri Prochazka, Cain Velasquez, Yoel Romero, Gilbert Yvel (86%) # Cody Garbrandt, Justin Gaethje (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 ...

(81%) #

, Mauricio Rua (78%) # Wanderlei Silva,

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 winn ...

, Cristiane Justino (77%) #

Stipe Miocic Stipe Miocic (born August 19, 1982) is an American professional mixed martial artist. He currently competes in the Heavyweight division in the Ultimate Fighting Championship (UFC), where he is a former two-time UFC Heavyweight Champion. Miocic i ...

(76%) # Anthony Johnson, Igor Vovchanchyn (73%) # Junior Dos Santos, Robbie Lawler (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 U ...

(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

(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 (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 ...

(100) # Toshio Fujiwara (99) # Andy Souwer (98) # Ramon Dekkers (95) # Badr Hari (92) #

Fabrice Aurieng Fabrice Jean Andre Aurieng (born 7 December 1981 in Sainte-Clotilde) is a French Savate kickboxer. Titles *Kickboxing **Professional **2015 NDC K-1 rules heavyweight +100 kg Champion **2015 ISKA European K-1 Rules Champion **2011 K-1 Kick ...

(89) # Mike Zambidis (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 Babić ...

(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 Kevin Rosier (January 6, 1962 – April 14, 2015) was an American kickboxer, boxer and mixed martial artist. He had much success as a kickboxer, winning a number of titles, but did not transition particularly well into the world of boxing and wa ...

(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 Rosa ...

(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,

Alain Ngalani Alain may refer to: People * Alain (given name), common given name, including list of persons and fictional characters with the name * Alain (surname) * "Alain", a pseudonym for cartoonist Daniel Brustlein * Alain, a standard author abbreviation u ...

(92%) #

(91%) # Benny Urquidez, Dustin Jacoby,

Jean-Yves Theriault Jean-Yves is a French masculine given name. Notable persons with that name include: * Jean-Yves André (born 1977), Mauritian footballer * Jean-Yves Anis (born 1980), French footballer * Yves Jean-Bart (born 1947), Haitian football executive * Je ...

(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 ho ...

(87%)

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

138 * Archie Moore 132 *

126 * Sam Langford 126 *

120 * Kid Azteca 114 *

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 101 * Joe Gans 100 * Jimmy Wilde 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 boxer who fought from 1927 to 1945. He held the British Empire Middleweight Championship from 1933 to 1939, and took the ...

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 liste ...

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 Galile ...

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 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 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 cri ...

72 *

Benny Bass Benjamin "Benny" Baruch J. Bass (December 4, 1904 – June 25, 1975), known as "Little Fish", was an American boxer. He was born in Kyiv, Ukraine, with his family emigrating to the United States in 1906; choosing to settle in Philadelphia, Penns ...

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 71 * Roberto Durán 70 * Benny Leonard 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 *

68 * Joe Jeanette 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 Gard ...

68 * Lou Brouillard 67 *

Tommy Gomez Tommy may refer to: People * Tommy (given name) * Tommy Atkins, or just Tommy, a slang term for a common soldier in the British Army Arts and entertainment Film and television * ''Tommy'' (1931 film), a Soviet drama film * ''Tommy'' (1975 fil ...

67 *

Pedro Carrasco Pedro Juan Carrasco García (11 July 1943 – 27 January 2001) was a Spanish boxer whose fame transcended the boxing ring. During the 1970s, he was a media darling in Spain. Carrasco was crowned European Lightweight champion in 1967. This trium ...

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 Lee Savold (born Lee Hulver; March 22, 1915 – May 14, 1972) was an American heavyweight boxer who held the British and European (EBU) version of the World Heavyweight championship between 1950 and 1951 and was a leading contender in the 1940s an ...

65 * Willie Pep 65 * Elmer Ray 64 * George Chuvalo 63 * Carlos Zárate Serna 63 *

Frank Moody Frank Moody (27 August 1900 – 29 July 1963) was a Welsh boxer who fought between 1914 and 1936. He is most notable for winning the British and Empire middleweight boxing championship in 1927 and 1928 and the light-heavyweight title from 1927 ...

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) 60 * Freddie Steele 60 * Ike Williams 60 *

Cleveland Williams Cleveland "Big Cat" Williams (June 30, 1933 – September 10, 1999) was an American professional boxer. A poll in '' The Ring'' magazine rated him as one of the finest boxers never to win a title. Early life Born in Griffin, Georgia, Williams sta ...

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 Heavy ...

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 (tw ...

60 * Max Baer (boxer) 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 greatest ...

59 * Kid Pascualito 59 *

James Red Herring James Bryan Herring (March 19, 1896 – May 7, 1974), also known as Red Herring, was an American boxer, who claimed the world light welterweight championship in 1925. Early life and career Herring was born on March 19, 1896, in Paducah, Kentuck ...

58 *

Eric Esch Eric Scott Esch (born August 3, 1966), better known by his nickname "Butterbean", is an American retired professional boxer, kickboxer, mixed martial artist, and professional wrestler who competed in the heavyweight division. He is also a televis ...

58 *

Tony Galento Domenico Antonio Galento (March 12, 1910 – July 22, 1979) was an American heavyweight boxer. Nicknamed "Two Ton" for his reasoning to his manager for being nearly late to one of his fights: "I had two tons of ice to deliver on my way here". ...

57 * John Henry Lewis 57 *

Pascual Perez (boxer) Pascual is a Spanish given name and surname, cognate of Italian name Pasquale, Portuguese name Pascoal and French name Pascal. In Catalan-speaking area (including Andorra, Valencia, and Balearic islands) Pascual has the variant Pasqual. Pas ...

57 * Charley White 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, California ...

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 ch ...

57 * Jose Luis Castillo 57 * Bob Fitzsimmons 57 * Tiger Flowers 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 hi ...

56 *

Pedro Montanez Pedro is a masculine given name. Pedro is the Spanish language, Spanish, Portuguese language, Portuguese, and Galician language, Galician name for ''Peter (given name), Peter''. Its French equivalent is Pierre while its English and Germanic fo ...

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, who ...

56 * Charles Kid McCoy 55 * Dixie Kid 55 * Gorilla Jones 55 * Freddie Mills 55 * Manuel Ortiz (boxer) 54 * Marcel Thil 54 * Solly Krieger 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 Galile ...

54 *

Bennie Briscoe "Bad" Bennie Briscoe (February 8, 1943 – December 28, 2010) was an American professional boxer. A fan favorite for his punching power, he was known as the "quintessential Philadelphia boxer," and one of the greatest fighters of his era who due ...

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 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 rei ...

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 document ...

52 * Philadelphia Jack O'Brien 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 a ...

52 * Marvin Hagler 52 * Rocky Graziano 52 * Ezzard Charles 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 --> Miguel is a given name and surname, the Portuguese and Spanish form of the Hebrew name Michael. It may refer to: Places * Pedro Miguel, a parish in the municipality of Horta and the island of Faial in the Azores Islands * São Miguel (disam ...

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 Honeygha ...

51 *

Jorge Paez Jorge is a Spanish Language, Spanish and Portuguese Language, 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 ...

51 *

Marco Antonio Rubio Marco Antonio Rubio (born June 16, 1980) is a Mexican former professional boxer who competed from 2000 to 2015. He held the WBC interim middleweight title in 2014, and challenged twice for a middleweight world title in 2009 and 2012. Professi ...

51 * Charley Burley 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 Galilea ...

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 Ede ...

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

Technical knockout

Double knockout

Physical characteristics

Knockdown

Knockout records

Top 10 boxers by most KOs

Top 10 boxing champions (including interims) by KO percentage

Top 10 MMA fighters by most KOs

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

Most consecutive KOs

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

Top 10 kickboxers by most KOs

Top 10 Kickboxers (champions, challengers) by KO percentage

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

See also

References

External links