Topic summary
World Championships

Extracted from the Wikipedia article World championship.
How the championship title is assigned
The title is usually awarded through a combination of specific contests or, less commonly, ranking systems (e.g. the ICC Men's Test Championship), or a combination of the two (e.g. World Triathlon Championships in triathlon). This determines a "world champion", who or which is commonly considered the best nation, team, individual (or other entity) in the world in a particular field, although the vagaries of sport ensure that the competitor recognised at the best in an event is not always the 'world champion'. This may also be known as a world cup competition, for example cycling (UCI World Championships and UCI World Cups). Often, the use of the term cup or championship in this sense is just a choice of words. Some sports have multiple champions because of multiple organizations, such as boxing, mixed martial arts and wrestling.