Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A division in sports consists of a group of teams which compete against one another for a divisional title. It is often part of a league system, which is a set of divisions, in which teams can move between differently ranked divisions. Divisions are then organised in such a way that teams or players in any given division are comparably adept at their chosen sport, so that matches are more even, and therefore more exciting. Often this is achieved by ensuring that the victors of one division are promoted to some "higher" division upon achieving their divisional title, while the worst teams in the division are relegated.