A corner retirement (RTD) or corner stoppage are terms used in boxing to describe a fight that ends when, during any rest period between rounds, a boxer themselves refuses to continue or their corner pulls them out, thereby forcing the referee to call an end to the fight. 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.
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Corner retirement Wikipedia(Text) CC BY-SA