Round-robin tournament

A round-robin tournament or all-play-all tournament is a type of tournament in which each participant plays every other participant an equal number of times. In a pure round-robin schedule, each participant plays every other participant once. If each participant plays all others twice, this is frequently called a double round-robin. The term is rarely used when all participants play one another more than twice, and is never used when one participant plays others an unequal number of times (as is the case in all of the major United States professional sports).

Related Topics:
Tournament - United States

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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. There are also round-robin chess tournaments.

Related Topics:
Football (soccer) - Chess

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Frequently, pool stages within a wider tournament are conducted on a round-robin basis. Examples with pure round-robin scheduling include the FIFA World Cup and UEFA Cup (since 2004–05) in soccer, the National Provincial Championship of rugby union in New Zealand, and many American Football college conferences, such as the Mountain West Conference. The group phase of the UEFA Champions League is contested as a double round-robin, as are most basketball leagues outside the United States, including the regular-season and Top 16 phases the Euroleague.

Related Topics:
FIFA World Cup - UEFA Cup - 2004 - 05 - National Provincial Championship - Rugby union - New Zealand - American Football - College conferences - Mountain West Conference - UEFA Champions League - Basketball - United States - Euroleague

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