A corner retirement [1] [2] [3] (also known as a corner stoppage) [4] [5] is a term in boxing used to describe a fight ending when a boxer refuses to continue or their corner team pulls them out during the rest period between rounds. This results in the referee stopping the fight, and it is officially recorded as "RTD" (Retired) in boxing records, including those maintained by BoxRec. In contrast, a technical knockout (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, and is displayed as a stoppage result on a boxer's win/loss record.
One of the most famous RTD (corner retirement) stoppages in boxing history occurred on February 25, 1964, during the first fight of Muhammad Ali vs. Sonny Liston. [6] After six competitive rounds, Sonny Liston, complaining of a shoulder injury, refused to get up from his stool for the seventh round. As a result, Ali was declared the winner by RTD and became the world heavyweight champion.
