Golf is a sport in which players(golfers) using many types of clubs, attempt to hit balls into each hole on a golf course in the lowest possible number of strokes. Golf is one of the few ball games that do not use a standardized playing area; rather the game is played on golf "courses", each one of which has a unique design and typically consists of either 9 or 18 holes. Golf is defined in the Rules of Golf as "playing a ball with a club from the teeing ground into the hole by a stroke or successive strokes in accordance with the Rules".