A corner retirement or corner stoppage – abbreviated "RTD (Retired)" by

BoxRec BoxRec or boxrec.com is a website dedicated to holding updated records of professional and amateur boxers, both male and female. It also maintains a MediaWiki-based encyclopaedia of boxing. The objective of the site is to document every profess ...

– are terms used in

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 ...

to describe a fight that ends when, during any rest period between rounds, a boxer refuses to continue or their

corner Corner may refer to: People *Corner (surname) * House of Cornaro, a noble Venetian family (''Corner'' in Venetian dialect) Places *Corner, Alabama, a community in the United States *Corner Inlet, Victoria, Australia *Corner River, a tributary of ...

pulls them out, thereby forcing the

referee A referee is an official, in a variety of sports and competition, responsible for enforcing the rules of the sport, including sportsmanship decisions such as ejection. The official tasked with this job may be known by a variety of other titl ...

to call an end to the fight. In contrast, a

technical knockout A knockout (abbreviated to KO or K.O.) is a fight-ending, winning criterion in several full-contact combat sports, such as boxing, kickboxing, muay thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking, a ...

(TKO) may only be declared by the referee or ringside doctor, at any stage of the fight including rest periods. In either case, an RTD still counts as a type of

knockout A knockout (abbreviated to KO or K.O.) is a fight-ending, winning criterion in several full-contact combat sports, such as boxing, kickboxing, muay thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking, a ...

, and is displayed as a stoppage result on a boxer's win/loss record. One of the most notable corner stoppages in boxing occurred during the

Muhammad Ali vs. Sonny Liston The two fights between Muhammad Ali and Sonny Liston for boxing's World Heavyweight Championship were among the most controversial fights in the sport's history. ''Sports Illustrated'' magazine named their first meeting, the Liston–Clay fight ...

fight on February 25, 1964, the first of their two fights. After six back-and-forth rounds,

Sonny Liston Charles L. "Sonny" Liston ( 1930 – December 30, 1970) was an American professional boxer who competed from 1953 to 1970. A dominant contender of his era, he became the world heavyweight champion in 1962 after knocking out Floyd Patterson i ...

, complaining of a shoulder injury, refused to get up from his stool for the seventh round. As a result, Ali became the

world heavyweight champion At boxing's beginning, the heavyweight division had no weight limit, and historically the weight class has gone with vague or no definition. During the 19th century many heavyweights were 170 pounds (12 st 2 lb, 77 kg) or less, tho ...

References

{{Boxing Boxing rules and regulations