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Frequently, pool stages within a tournament are conducted on a pure round-robin basis. Many college conferences in the United States also conduct pure round-robin schedules in American football. Examples of pure round-robin scheduling include:
In sports with a large number of competitive matches per season, double round-robins are common. Almost all football (soccer) leagues in the world are organized on a double round-robin basis, in which every team plays all others in its league once at home and once away. The group phase of the Champions League is also contested as a double round-robin. Most basketball leagues outside the United States are also organized in this manner, as are the regular-season and Top 16 phases of Europe's continental club competition in that sport, the EuroleagueThe Euroleague is a high-caliber professional basketball league with teams from all over Europe. The Euroleague was established by ULEB, the Union of European Leagues of Basketball, which in turn was created by a group of 24 elite club teams. Most of the.
There are also round-robin chessFor other meanings, see Chess (disambiguation). Chess (from the Persian word Shah is a board game for two players played on a square board divided into eight rows (or ranks and eight columns (or files creating 64 individual squares which alternate in colo tournaments.
In sports where tieTo tie or draw is to finish a competition with identical or inconclusive results. In some sports and games, ties are possible. American football Tie games, which were commonplace through the 1960s, have become exceedingly rare. In the National Football Les are rare or impossible, competitors typically are ranked by number of wins, with ties counting half. Where ties are more common, this may be 2 points for a win and 1 for a tie, which is mathematically equivalent but avoids having too many half-points in the listings.
Other sports may have more complex ranking criteria. In soccer, where boring 0-0 draws are common, many leagues give 3 points for a win and 1 for a draw to encourage attacking play. In rugby union, bonus points may be awarded for scoring a certain number of tries, which are a more crowd-pleasing form of score than goals.