A corner retirement[1][2][3] or corner stoppage[4][5] – abbreviated "RTD (Retired)" by BoxRec – are terms used in boxing to describe a fight that ends when, during any rest period between rounds, a boxer 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.

One of the most notable corner stoppages in boxing occurred during the Muhammad Ali vs. Sonny Liston fight on February 25, 1964,[6] the first of their two fights. After six back-and-forth rounds, Sonny Liston, 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.


  1. ^ "On This Day: Larry Holmes thrashes the remnants of Muhammad Ali". Boxing News. Newsquest. 2 October 2014. Retrieved 29 March 2016.
  2. ^ Bonnett, Derek (29 March 2015). "On the Move: SecondsOut World Rankings 3-29-15". SecondsOut. Knockout Entertainment. Retrieved 29 March 2016.
  3. ^ Gray, Tom (21 March 2015). "Braehmer defeats Krasniqi, forces corner retirement" Archived 25 March 2015 at the Wayback Machine. The Ring. Retrieved 29 March 2016.
  4. ^ Campbell, Brian (19 August 2015). "Sanchez disagrees that Lemieux is GGG's toughest test". ESPN. Retrieved 30 March 2016.
  5. ^ Ortega, Mark E. (20 October 2013). "Provodnikov wears down Alvarado to stoppage" Archived 16 April 2016 at the Wayback Machine. The Ring. Retrieved 30 March 2016.
  6. ^ "BoxRec: Bout". boxrec.com. Retrieved 3 December 2018.