A Swiss-system tournament is a non-eliminating tournament format that features a set number of rounds of competition, but considerably fewer than that of a round-robin tournament. In a Swiss tournament, each competitor (team or individual) does not necessarily play all other entrants. Competitors meet one-on-one in each round and are paired using a set of rules designed to ensure that each competitor plays opponents with a similar running score, but not the same opponent more than once. The winner is the competitor with the highest aggregate points earned in all rounds. All competitors play in each round unless there is an odd number of players.
"Olympic system" is known as single-elimination, knockout, or sudden death tournament is a type of elimination tournament where the loser of each match-up is immediately eliminated from the tournament. Each winner will play another in the next round, until the final match-up, whose winner becomes the tournament champion.
Unlike most sports, slots are limited for Olympic boxing and just because you qualified nationally does not mean you are going to the Games. Professionals qualify through their ranking and an international Olympic qualifying tournament. Amateur boxers qualify for the Olympics through performances at regional tournaments in Europe, Asia, the Americas, Africa and Oceania, or at a world qualifying tournament.
Rule changes in British boxing took into account not only shifts in societal norms but the inescapable fact that the sport was illegal. The primary task of proponents was to reconcile a putatively barbaric activity with a civilizing impulse. According to English law, as reported in William Blackstone’s Commentaries on the Laws of England (1765–69), “a tilt or tournament, the martial diversion of our ancestors is an unlawful act: and so are boxing and sword playing, the succeeding amusements of their posterity.” Perceived by the courts as a throwback to a less-civilized past, prizefighting was classified as an affray, an assault, and a riot. However, widespread public support for boxing in England led to legal laxity and inconsistency of enforcement.