World Series of Boxing Like professional boxing, each bout is decided by the scores of three judges or, in some cases, by a knockout, technical knockout or walk-over. A WSB meet between two international franchises consists of bouts in ten (formerly five) weight categories. There are five three-minute rounds in each bout and the team that wins the most number of bouts wins the meet. Until season 4, there were five weight categories which were different than 10 categories in amateur (Olympic) boxing or 17 categories in professional boxing. These were Heavyweight (91+ kg), Light heavyweight (80–85 kg), Middleweight (68–73 kg), Lightweight (57–61 kg)
HBO World Championship Boxing boxing events, have aired live on HBO Canada with later repeats on TSN. HBO World Championship Boxing HBO World Championship Boxing was an American sports television series, premiering in January 1973 that has shown a number of significant boxing events since then. "WCB"s first event was fought in Kingston, Jamaica, where George Foreman defeated Joe Frazier in two rounds to win the world heavyweight championship. On September 27, 2018, HBO announced they would be dropping boxing from the network following its last televised match on October 27, although there were two additional airings, one on November 24, 2018 and the