Qualification
Qualification rules for each of the Olympic sports are set by the International Sports Federations (IFs) that governs that sport's international competition.
For individual sports, competitors typically qualify through attaining a certain place in a major international event or on the IF's ranking list. National Olympic committees may enter a limited number of qualified competitors in each event, and the NOC decides which qualified competitors to select as representatives in each event if more have attained the benchmark than can be entered.
Nations qualify teams for team sports through continental qualifying tournaments, in which each continental association is given a certain number of spots in the Olympic tournament.
Read more about this topic: Summer Olympic Games