Sport or sports are all forms of usually competitive physical activity or games which, through casual or organised participation, aim to use, maintain or improve physical ability and skills while providing enjoyment to participants, and in some cases, entertainment for spectators. Usually the contest or game is between two sides, each attempting to exceed the other. Some sports allow a tie game; others provide tie-breaking methods, to ensure one winner and one loser.
According to A.T. Kearney, a consultancy, the global sporting industry is worth up to $620 billion as of 2013. The world’s most accessible and practised sport is running, while association football is its most popular spectator sport.