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These two senses are distinct. All "golf tournaments meet the first definition, but while "match play tournaments meet the second, "stroke play tournaments do not, since there are no distinct matches within the tournament. In contrast, "football (soccer) leagues like the "Premier League are tournaments in the second sense, but not the first, having matches spread across many stadia over a period of up to a year. Many tournaments meet both definitions; for example, the "Wimbledon tennis championship. Tournaments "are temporally demarcated events, participation in which confers levels of status and prestige amongst all participating members".
A tournament-match (or tie or fixture or heat) may involve multiple game-matches (or rubbers or legs) between the competitors. For example, in the "Davis Cup "tennis tournament, a tie between two nations involves five rubbers between the nations' players. The team that wins the most rubbers wins the tie. In the later rounds of "UEFA Champions League of football (soccer), each fixture is "played over two legs. The scores of each leg are added, and the team with the higher aggregate score wins the fixture, with "away goals used as a tiebreaker and a "penalty shoot out if away goals cannot determine a winner of the game.
A knockout tournament or elimination tournament is divided into successive rounds; each competitor plays in at least one fixture per round. The top-ranked competitors in each fixture progress to the next round. As rounds progress, the number of competitors and fixtures decreases. The final round, usually known as the final or cup final, consists of just one fixture; the winner of which is the overall champion.
In a "single-elimination tournament, only the top-ranked competitors in a fixture progress; in 2-competitor games, only the winner progresses. All other competitors are eliminated. This ensures a winner is decided with the minimum number of fixtures. However, most competitors will be eliminated after relatively few matches; a single bad or unlucky performance can nullify many preceding excellent ones.
A "double-elimination tournament may be used in 2-competitor games to allow each competitor a single loss without being eliminated from the tournament. All losers from the main "bracket enter a losers' bracket, the winner of which plays off against the main bracket's winner.
Some formats use a "repechage, allowing losers to play extra rounds before re-entering the main competition in a later round. "Rowing "regattas often have repechage rounds for the "fastest losers" from the heats. The winners of these progress, but are at a disadvantage in later rounds owing to the extra effort expended during the repechage.
A "family of tournament systems that grew from a system devised for the Victorian Football League, the historic predecessor to the "Australian Football League (AFL), allow the teams with the best record before the playoffs to lose a game without being eliminated, whereas lesser qualifiers are not. Several of the most prominent leagues in Australia use such a system, such as the AFL and the "National Rugby League in rugby league. The "A-League of association football also used such a system through its 2011–12 season, but now uses a pure knockout playoff. Similar systems are used in cricket's "Indian Premier League and most "curling tournaments, and were also used by the "Super League of European rugby league before being scrapped after the 2014 season.
In "athletics meetings, fastest losers may progress in a running event held over several rounds; e.g. the qualifiers for a later round might be the first 4 from each of 6 heats, plus the 8 fastest losers from among the remaining runners.
An extreme form of the knockout tournament is the stepladder format where the strongest team (or individual, depending on the sport) is assured of a berth at the final round while the next strongest teams are given byes according to their strength/seeds; for example, in a four team tournament, the fourth and third seed figure in the first round, then the winner goes to the semifinals against the second seed, while the survivor faces the first seed at the final. Four American sports organizations either currently use this format, or have in the past:
A group tournament, "league, "division or "conference involves all competitors playing a number of fixtures (again, a fixture is one name for a tournament-match that determines who, out of two or three or more, will advance; a fixture may consist of one or more game-matches between competitors). Points are awarded for each fixture, with competitors ranked based either on total number of points or average points per fixture. Usually each competitor plays an equal number of fixtures, in which case rankings by total points and by average points are equivalent. The English "County Championship in cricket did not require an equal number of matches prior to 1963.
In a "round-robin tournament, each competitor plays all the others an equal number of times, once in a single round-robin tournament and twice in a double round-robin tournament. This is often seen as producing the most reliable rankings. However, for large numbers of competitors it may require an unfeasibly large number of rounds. A "Swiss system tournament attempts to determine a winner reliably, based on a smaller number of fixtures. Fixtures are scheduled one round at a time; a competitor will play another who has a similar record in previous rounds of the tournament. This allows the top (and bottom) competitors to be determined with fewer rounds than a round-robin, though the middle rankings are unreliable.
There may be other considerations besides reliability of rankings. In some "professional team sports, weaker teams are given an easier slate of fixtures as a form of "handicapping. Sometimes schedules are weighted in favour of "local derbies or other "traditional rivalries. For example, NFL teams play two games against each of the other three teams in their division, one game against half of the other twelve teams in their conference, and one game against a quarter of the sixteen teams in the other conference.
American sports are also unusual in providing fixtures between competitors who are, for ranking purposes, in different groups. Another, systematic, example of this was the "2006 Women's Rugby World Cup: each of the teams in Group A played each of the teams in Group B, with the groups ranked separately based on the results. (Groups C and D intertwined similarly.) An elaboration of this system is the Mitchell movement in duplicate bridge, discussed below, where North-South pairs play East-West pairs.
In 2-competitor games where "ties are rare or impossible, competitors are typically ranked by number of wins, with ties counting half; each competitors' listings are usually ordered Wins–Losses(–Ties). 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. These are usually ordered Wins–Ties–Losses. If there are more than two competitors per fixture, points may be ordinal (for example, 3 for first, 2 for second, 1 for third).
Many tournaments are held in multiple stages, with the top teams in one stage progressing to the next. American professional team sports have a "regular season" (group tournament) acting as qualification for the "post season" or ""playoffs" (single-elimination tournament). A group stage (also known as pool play or the pool stage) is a "round-robin stage in a multi-stage tournament. The competitors are divided into multiple groups, which play separate round-robins in parallel. Measured by a "points-based ranking system, the top competitors in each group qualify for the next stage. In most editions of the "FIFA World Cup finals tournament, the first round has been a group stage with groups of four teams, the top two qualifying for the "knockout stage" played as a "single-elimination tournament. This format is common in many international team events, such as "World Cups or "Olympic tournaments. Some tournaments have two group stages, for example the "1982 FIFA World Cup or the "1999–2000 UEFA Champions League. As well as a fixed number of qualifiers from each group, some may be determined by comparing between different groups: at the "1986 FIFA World Cup the best four of six third-place sides qualified; at the "1999 Rugby World Cup the best one of five third-place sides did so.
Sometimes, results from an earlier phase are carried over into a later phase. In the "Cricket World Cup, the second stage, known as the Super Eight since "2007 and before that the Super Six, features two teams from each of four preliminary groups (previously three teams from two preliminary groups), who do not replay the teams they have already played, but instead reuse the original results in the new league table. Formerly in the "Swiss Football League, teams played a double round-robin, at which point they were split into a top "championship" group and a bottom "relegation" group; each played a separate double round-robin, with results of all 32 matches counting for ranking each group. A similar system is also used by the "Scottish Premiership and its historic predecessor, the "Scottish Premier League, since 2000. After 33 games, when every club has played every other club three times, the division is split into two halves. Clubs play a further 5 matches, against the teams in their half of the division. This can (and often does) result in the team placed 7th having a higher points total than the team placed 6th, because their final 5 games are considerably easier.
The "top Slovenian basketball league has a unique system. In its first phase, 12 of the league's 13 clubs compete in a full home-and-away season, with the country's representative in the "Euroleague (an elite pan-European club competition) exempt. The league then splits. The top seven teams are joined by the Euroleague representative for a second home-and-away season, with no results carrying over from the first phase. These eight teams compete for four spots in a final playoff. The bottom five teams play their own home-and-away league, but their previous results do carry over. These teams are competing to avoid relegation, with the bottom team automatically relegated and the second-from-bottom team forced to play a mini-league with the second- and third-place teams from the second level for a place in the top league.
Where the number of competitors is larger than a tournament format permits, there may be multiple tournaments held in parallel, with competitors assigned to a particular tournament based on their ranking. In "chess, "Scrabble, and many other individual games, many tournaments over one or more years contribute to a player's ranking. However, many team sports involve teams in only one major tournament per year. In European sport, including football, this constitutes the sole ranking for the following season; the top teams from each division of the league are promoted to a higher division, while the bottom teams from a higher division are relegated to a lower one.
This promotion and relegation occurs mainly in league tournaments, but also features in Davis Cup and Fed Cup tennis:
The hierarchy of divisions may be linear, or tree-like, as with the "English football league pyramid.
In "contract bridge a "tournament" is a tournament in the first sense above, composed of multiple "events", which are tournaments in the second sense. Some events may be single-elimination, double-elimination, or Swiss style. However, ""Pair events" are the most widespread. In these events, a number of deals (or "boards) are each played several times by different players. For each such board the score achieved by each North-South (NS) pair is then measured against all the other NS pairs playing the same board. Thus pairs are rewarded for playing the same cards better than others have played them. There is a predetermined schedule of fixtures depending on the number of pairs and boards to be played, to ensure a good mix of opponents, and that no pair plays the same board or the same opponents twice (see "duplicate bridge movements).
In "poker tournaments, as players are eliminated, the number of tables is gradually reduced, with the remaining players redistributed among the remaining tables. Play continues until one player has won all of the chips in play. Finishing order is determined by the order in which players are eliminated: last player remaining gets 1st place, last player eliminated gets 2nd, previous player eliminated gets 3rd, etc.
In a "shootout" tournament, players do not change tables until every table has been reduced to one player.
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While tournament structures attempt to provide an objective format for determining the best competitor in a game or sport, other methods exist.
Tournaments of value have come to legitimise what are often seen as marginalised practices that sit outside of popular culture. For example, the Grammy Award ceremony helped to shape country music as a viable commercial field, and Booker Prize ceremony helped to create new fields of literary fiction. Tournaments of value go beyond game show and simple contests as the journey itself emerges as being more significant, bestowing status and prestige on the winner and, in the process, shaping industry practices and acting as institutional mechanisms for shaping social fields.