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Round robin
Round robin
Round robin
Round robin
Round robin
Round robin
Round robin
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  • 1. ROUND ROBIN A round-robin tournament (or all-play-all tournament) is a competition "in which eachcontestant meets all other contestants in turn".
  • 2. Terminology• The term round-robin is derived from the term ruban, meaning "ribbon". Over a long period of time, the term was corrupted and idiomized to robin.• In a single 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.
  • 3. Use• In sports with a large number of competitive matches per season, double round-robins are common. This system is used during qualification for major tournaments such as the FIFA World Cup and the respective continental tournaments. There are also round-robin chess, go, and Scrabble tournaments.
  • 4. Evaluation• In theory a round robin tournament is the fairest way to determine a champion among a known and fixed number of participants. Each player or team has an equal chance against all other participants. A participants final record is thus seen to be more accurately represented in the results. This can also be used to determine which teams are the poorest performers.
  • 5. • The primary disadvantage to a round robin tournament is the time needed to complete it. Unlike a knockout tournament where half of the participants are eliminated after each round, a round robin requires one round less than the number of participants.
  • 6. Bible passage• 1 Corinthians 9:25 Everyone who competes in the games goes into strict training. They do it to get a crown that will not last; but we do it to get a crown that will last forever.