|A sport consists of a normal physical activity or skill carried
out under a publicly agreed set of rules, and with a recreational purpose:
for competition, for self-enjoyment, to attain excellence, for the development
of skill, or some combination of these. The difference of purpose is what
characterises sport, combined with the notion of individual (or team) skill
Therefore swimming competitively in front of thousands in an indoor arena is considered a sport, whereas swimming in a pool or in the sea by oneself is seen simply as a recreation.
There are many kinds of sports, and they take up a substantial proportion of people's time, money and interest, if not as participants then as spectators.
A classification of sports
A combination of all categories