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🏓 | Prefectural high school rookie table tennis opens against school


Prefectural high school rookie table tennis tournament where a hot battle is unfolding

Prefectural high school rookie table tennis opens

 
If you write the contents roughly
Men's and women's school competition (groups), individual singles, and doubles are all held in a tournament format.
 

The XNUMXth Prefectural High School Rookie Table Tennis Tournament (sponsored by the Prefectural High School Federation, etc.) began on the XNUMXnd at the City General Gymnasium (Z Arena) in Oshu City ... → Continue reading

 Iwate Nichi-Nichi Shimbun

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Wikipedia related words

If there is no explanation, there is no corresponding item on Wikipedia.

Tournament method

TournamentIs a method of deciding the winner and ranking in a competition.Various methods have been devised according to the difference in purpose such as selecting only one winner, deciding the ranking, making it interesting as a box office, and the restrictions on the period and place.It should be noted thatJapaneseIn the above, simply speaking of "tournament" and "tournament method" refers to a winning battle (knockout system).[1].

Definition

"Tournament" in English has a meaning similar to "tournament" in Japanese, and is a word that is used regardless of the tournament system.

The word "tournament" was derived from the medieval knight's ""Joust".It was held in place of the actual war, and not only honor but also money and sometimes territory were bet, resulting in death.

Japan's unique definition

In Japan, the winning match itself is often called a "tournament," and the term "final tournament," which is unique to Japanese, has also been coined.For exampleFIFA World CupThe term "final tournament" refers to the main tournament by the participating countries that have won the qualifying round, and the final tournament is called the "Knockout stage".JFAThen.2015 The name "final tournament" has been abolished.

Golf,TennisIn, etc., it is used to mean "tournament," which is close to the meaning of "tournament" in English.

Tournament type

Winning tournament

Winning tournament methodIs a one-on-one battle to win.There are many variants, but the basic form is an even "single elimination tournament".In this method, the player (team) who loses the game drops out at that point, and the winner is decided by repeating the battle between the winners.In Japanese, tournaments often refer to this method.In English, "knock out system" is also valid.It should be noted thatAthleticsSprintSwimmingThis is similar to the format in which multiple people participate in one qualifying round and the higher ranks advance to the upper stage.

It is called the nth round in order from the bottom of the competition table.The last 3 rounds are not the nth roundquaterfinals(Quarterfinal) →Semifinals(Semi-final, semifinal) →Final gameCalled (final, final) (however, the name quarterfinal is not used and it is sometimes called the nth round before the semifinal).In addition, a match between the losers of the semi-finals may be held.this3rd place match Called (third-place play off).

Incidentally,AthleticsTrack categories,Swimming,Ski crossIn the case of sports competitions in the form of races such as, two semi-final games (2 group and 1 groups) are played, the top half of each group advances to the final, and the bottom half of the players go to the lower ranking match. become[2]..In this case, the normal final match in which the top players participate is the "A final" or "big final", and the ranking match in which the bottom players participate (5th to 8th place playoff in the above example). Called the "B final" or "small final".

As a special methodHBC Cup jump competitionThen, from 2004 to 2020, 16 people competed in pairs and narrowed down to 8 people, then 4 people, and in the final match, all 4 people competed at once and decided the winner.

The match table is structured so that the number of matches when winning is the same.However, the number of participants is 2nIf not, the match table is completeBinary treeThere are players (teams) who do not participate in the first round because of the structure.In that case,

  • Players (teams) who do not participate in the first roundrandomChoose to
  • Players (teams) who do not participate in the first roundRatingChoose based on results in and other competitions
  • From the middleLoser RevivalInvolve the winner of

And so on.

If n people (teams) play a single elimination tournament, the total number of games will be (n-1) (n-XNUMX).drawRematch3rd place matchEtc.).This is because the number of games matches the number of losers, and only one player (team) who does not lose even one remains to become the winner.For example, if there are 1 players (teams), the total number of games will always be 1 regardless of the composition of the match table (when there is no draw rematch, 20rd place playoff, etc.).

Major League Baseball Postseasonetc,Number gameThere is also a tournament method used in combination with.UEFA Champions LeagueWith the final tournament and the summer national high school baseball championshipNational High School Rugby Football TournamentThere is also a tournament system in which opponents are decided by lottery for each round, such as after the quarterfinals of.in this case,LotteryLuck depends.

Depending on the tournament, players (teams) between neighboring districts and players (teams) between districts that have poor relationships such as conflicts and international conflicts may be assigned to avoid competition as much as possible.In addition, if a region where the decision of the representative player (team) is significantly delayed or the local area of ​​the player (team) who has decided to participate is hit by a catastrophe, that player (team) will finish the first match in the order of the last or near. It may be sorted.

seed

Arrange players (teams) in order of ability so that strong players (teams) do not play against each other in the early stages.seedCalled.Seed = Seeding is the etymology.If the match table is not a complete binary structure, in many cases the first match of the seed target will be from the second or higher round on the match table, but this is unconditionally given as an additional privilege to the seed target. It's just something that exists, not "the number of battles is small on the battle table = seed"[3]..There are cases where special participation slots and qualifying for some players are exempted, which is also a kind of privilege to reduce the number of battles mentioned above in a broad sense, and it is actually a kind of seed, but the etymology in the final round Whether or not it is subject to the "scattered arrangement on the competition table" in the original sense depends on the operation of the tournament.Set seeds mechanically on the match tablealgorithmThe following methods are known.

  1. First, a tentative ranking is decided based on past results, etc., and the 1st place participant is placed on one end of the competition table, and the 2nd place participant is placed on the other end.
  2. Place 3rd and below in order from the top of the competition table by following the rules below.
    • Select a mountain with a small number of participants placed first.
    • If the numbers are the same, choose the one with the lowest rank of the mountain.

For example, if 6 participants are arranged according to this, the combination of {1 − (5 − 4)} − {(3 − 6) − 2} is obtained. With eight people, it becomes {(8 − 1) − (8 − 5)} − {(4 − 3) − (6 − 7)}.

In addition, there is also a method of deciding the battle cards after the second round in order of seed (NFL Ofplay offSuch).

Most, the seed order is not always arranged in the order of grades, and players (teams) with low grades may be assigned a high seed order.Especially when the district system is adopted, the players (teams) who have won the district may be in higher seed order than the players (teams) who do not, regardless of their performance.

Features

The biggest feature is that once you lose, you lose theregamblingIt is highly sexual.It can be said that this method prioritizes the fun of a one-shot game rather than accurately evaluating the ability.In addition, draws are basically not allowed (for reasons such as schedule, in the case of a draw in the final match, there are cases where both win the championship, but it is extremely rare).

利 点

  • Every match will be tense (Digestive matchNever occurs).
  • The total number of games can be kept to the minimum.
  • The winner will be decided in the final race (final) of the tournament, so it will be exciting.
  • It can be held in parallel at multiple game venues, and the game schedule can be shortened (for example, even if it is divided into two venues, the semi-finals can be done).

Disadvantage

  • Extreme variability in the number of games per player / team (half or more will only participate in one game).
  • It is not suitable for measuring the degree of ability of those who have not faced each other directly, such as those who lost to the winner in the first round and those who lost in the final.
  • If there is only one match field, the intervals between matches are uneven from the perspective of the contestants.At the beginning of the tournament (between the 1st and 1nd rounds, etc.), the game interval is long, and if you win and approach the final, the schedule will be overcrowded.In particular, it tends to be a problem in competitions where the game time is long and the physical strength is extremely exhausted (such an adverse effect isNational High School Baseball ChampionshipIt is actually occurring in etc.).
  • In the case of track and field competitions, even if a "new record" is set in a place other than the tournament final, if the player cannot win a prize within the third place in the final, he / she can become a "record holder" but cannot obtain a medal (award).
  • It is difficult to determine the rankings other than the winner and runner-up.The two losers in the semi-finals decide their ranking3rd place match, But it is difficult to rank each of those who lost in the first round, for example.In that sense, it is (for example) the best 1 or the best 16.

Application example

Since it is highly prompt and the winner is decided in the final match (direct confrontation), it is often used in the final rounds and finals in various competitions (sports, attractions, games, etc.).In addition, since it can be operated relatively easily and it is easy for spectators to grasp the situation, it is easy to be used for competitions and selections in attractions and variety program planning.

Group tournament

"League match" and "round-robin match" in Japan are "group tournament" in English.In particular, if the same card is played twice (so-called "home and away method") or once in a complete round robin, it is called a "round-robin tournament".Swiss-style tournaments that are not "league matches" or "round-robin matches" are also a type of group tournament.

Paramus Tournament (Step Ladder)

A method in which a certain combination of matches is played first, then the winner and a new player, and then again, and the final winner wins.It is an extremely mountain-biased winning tournament.Generally, the stronger the player, the later the combination will be used.

If this method is applied to teams and players selected under the same conditions, it cannot be said to be a fair combination method.However, it is used for the purpose of making it unfair in order to give some priority to the players and teams with higher rankings in the previous year, regular season, qualifying, or the national team of the strong league with a large difference in ability.

There are also complex ways to give some rights not only to the final winner but also to those with a large number of winning stars, or to introduce a repechage.

For example, when performing with 4 people (group)

  1. 1st place player automatically advances to the final, 2nd place player advances to the semifinal (3rd place playoff)
  2. First, the quarterfinals (3th place playoff) will be held with the 4rd and 4th place players.
  3. 2. Winner and 2nd place player will play semi-final
  4. In addition, the winner of 3. and the 1st place player will win the final match.

Application example

A method combined with a regular winning tournament

That 1

The early game is a paramus tournament, and the final game is a seedless winning tournament.When all the seed players have appeared and the best 8 and the best 16 are available, it will be a normal winning tournament.

Application example
  • FootballUEFA Champions LeagueIn the qualifying round consisting of 5 rounds, the team with the highest ranking by country will be the seed to appear from the higher round.The group league will be held with 6 teams of 26 teams that won the qualifying round and 32 teams that were seeded in this tournament, and the 16 teams that won the tournament will play the final tournament of the surviving tournament.
  • GoThen,Holy battleChallenger decision tournament andRyuseiIt is used in the block battle of.
  • ShogiThen,Master gameChallenger decision (A class)Place battleIf there are 3 or more leaders with the same rate) andGalactic warIt is used in the block battle of.Also,Ryuo BattleThe mountain on the winning side of the 1st group in the main race is also a step ladder system.
  • Emperor's cupThen, from the 1st to the 4th rounds, this step ladder method was used, and after the 16th round of the best, it was done in the usual winning tournament (J1 league teams from the 4th round, J2 league teams from the 3rd round) Appearance. Amateur teams appear from the 1st and 2nd rounds).However, due to the increase in J-League clubs, J1 teams have also appeared in the second round.
That 2

Until the semi-finals (qualifying tournaments), regular tournaments with remaining wins will be held, and the finals will be held by those who have won the qualifying tournaments and seed players.

Application example
  • テ ー ブ ル ゲ ー ム OfMaster gameThe final and master battles will be held mainly by the seeded current champion (the winner of the previous year) and the challenger who won the qualifying tournament.
  • 2003 yearsNational High School Soccer ChampionshipAt the Nagasaki tournament, Kunimi High School became a super seed that appeared from the final match (because Kunimi High School players were convened for the U-17 Japan National Team at the same time as the Nagasaki tournament).In recent years, Aomori Yamada High School may appear in the semi-finals at the Aomori Tournament.[4].
  • Professional boxing OfTitle matchCan be said to be a type of this method.

Double elimination method

Unlike the single elimination method, where you lose once you lose, you lose when you lose two.

The pronunciation of elimination is / ɪˌlɪməˈneɪʃən / Or / əlɪməˈneɪʃən / Therefore, the katakana notation may be either elimination or elimination.It is also referred to as double illumination in Japanese professional bowling competitions.This is what the Japanese bowling world means of illumination.illumination (illumination) ”.

the way

A normal single elimination tournament is held to determine the finalists (winner side), and at the same time, a single elimination tournament is held between those who lost one to determine the finalists (loser side).The finals will be played by these two players and the winner will be decided.In the case of full double elimination, if the person who wins the loser side in the final win wins, the final rematch (ResetIs called).ShogiChess gameHowever, the method is adopted that "the winner side needs one win but the loser side needs two wins in the challenger deciding match".

When both the winner side and the loser side advance to the next round in qualifying, etc., even if the person who wins the loser side in the final match wins, it is considered to be the winner as it is, or the winner side wins without performing the final match. In some cases, the person who wins the loser side is placed in second place.

  • In the example figure, the winner is "G", the runner-up is "E", the third place is "A", and the fourth place is "H".If the winner side "G" loses to the loser side "E" in the final match (3), both sides will lose 4 and it may be stipulated that a rematch will be held.For example, in the above-mentioned Shogi match against Kiou, the winner of the final match was initially a challenge, but there was a voice saying, "It is unreasonable that the winner's finalists are not allowed to revive the loser." The winner side only needs one win, but the loser side needs two wins. "

Advantages and disadvantages

The advantages and disadvantages of the combination can be reduced, but the number of games is doubled.Also, the same battle card is likely to occur multiple times (it can be made less likely to occur depending on the device).[5]Can never be prevented from occurring[6]), Either of the teams that advance to the final will definitely lose one.

また、シングルイリミネーション方式のトーナメントより複雑で試合数が増える。これは敗者復活戦は、敗者復活1回戦(1回戦敗者同士)、敗者復活2回戦(復活1回戦勝者vs2回戦敗者)、敗者復活3回戦(復活2回戦勝者同士)、4回戦(復活3回戦勝者vs3回戦敗者)……のように、3回戦以降は勝者側の2倍ずつ試合をしていかなければならなくなるためである。

Application example

  • BowlingCompetition[7],Beach volleyball,Competitive fighting gameIt is used in the competition.
  • ShogiThen.Chess game(Above, implemented by the best 4 advancers)Clean battleThe qualifying round uses a double elimination system.AlsoRyuo BattleIt can be said that the promotion match in the ranking match is also a de facto double elimination system (a player who lost once in the main match decision match goes to the promotion match and is promoted if he survives undefeated here).In the pastHoly battleIt was also adopted (conducted by the best 16 advancers, and 2 people who survived without losing 8 advanced to the challenger decision tournament).
  • 2009 World Baseball ClassicIt was also adopted in the 1st and 2nd rounds of the game, but it also revealed the drawback that the same match card would occur multiple times, such as Japan and South Korea playing 5 times before the final (from this lesson).2013 World Baseball ClassicThen only the second round was adopted).If you do not rematch the final, you can play against the same opponent up to 2 times.[8]However, in this case, the first and second rounds had independent tournament tables, so there were two matches each.
  • Although all participating teams are not given the same rights (remaining until they lose 2) as in the example,All Japan University Baseball Championship25st tournament (1976 ), The irregular double elimination method was adopted only for the teams that advanced to the top 4 of the winning tournament.As a result, the team that advanced to the loser side (the team that lost the quarterfinals on the winner side) decided to win (the first match), but many unpopular opinions came out after the tournament, and the adoption of this method is limited to this year. Disappeared in.Just like thisNational secondary school championship baseball tournamentThere was a repechage tournament of almost the same form in the 2nd and 3rd tournaments, but it was abolished due to the objection that the repechage team won.3th National Secondary School Championship Baseball Tournamentreference).
  • judoThen, the finalists are decided by the winning ceremony, but only the players who lost to the semi-finals other than the finals will play the repechage by the step ladder method, and finally the semi-final losers will play the finals 3 It uses an irregular double elimination method of determining the position.
  • City competition baseball tournamentIn the district qualifying round, there used to be a method in which all losers participated in the repechage tournament from the first round using this double elimination method, but now it is Tokai that is allowed to participate in the repechage. Only the top 1-4 teams round, excluding the district qualifiers.
    • In the Tokai area qualifying, all 2 teams that advanced to the second qualifying have a chance to revive the loser,followingThe semi-final / final loser repechage tournament (2nd national team final) and the 1st round / quarter-final loser repechage tournament (3rd national team final) are separated.

Page system method

Paramus Tournament (Step Ladder)It is an anomalous method that has the possibility of winning even if the repechage is revived by combining the double elimination method.

Qualifying will be held in round-robin tournaments, etc., and the rankings from 1st to 4th will be decided, and the following procedure will be followed.

  1. Semifinal 1 (Playoff 1): 1st place A and 2nd place B in qualifying will play against each other, the winner will advance to the final, and the loser will go to semifinal 3.
  2. Semifinal 2 (Playoffs 2): 3rd place C and 4th place D in qualifying will play against each other, the winner will advance to semifinal 3 and the loser will be 4th place.
  3. Semifinal 3 (3rd place playoff): The loser in 1. and the winner in 2. will play against each other, the winner will advance to the final, and the loser will be in 3rd place.
  4. Final: The winner of 1. and the winner of 3. will play for victory.

If you finish in 2nd place in the qualifying, you will be in 3rd place at that point, and if you win in the first match, you will be in 2nd place.Even if you lose in the first race of the main race, you still have the possibility of winning.On the contrary, in order for the 3rd and lower qualifiers to win, it is necessary to win 1 consecutive times without losing even once.It is a system that can obtain very advantageous conditions by entering the second place in the qualifying.

Application example

soft ballUsed in.V League2005-2006 season final round,City competition baseball tournamentとAdult Baseball Japan ChampionshipThis method has been adopted since 2006 in the Shikoku district representative deciding match.Australiaサ ッ カ ーA leagueIt is also used in the final series of.

curling OfJapan ChampionshipHowever, the final tournament by the page system is being held (until 2017, the third place playoff is held again between the loser of (2) and the loser of (3), which is an irregular method. T).Previously, the page system was adopted in the world championships, but from 3, it has been changed to a knockout final tournament by the top 2018 teams.OlympicIn, it is being held in a knockout-type final tournament by the top four teams.

City competition baseball tournamentThe Tokai area and Kinki area qualifiers are a combination of the double elimination method and the page system.

In the case of Tokai area
  1. First, a tournament will be held by 16 teams, and the winning team will be the first representative.All 1 defeated teams will go to the repechage.
  2. Next, the second national team finals by the semi-finals and final losers and the third national team finals by the first and quarter-final losers will be held.
    • In the second national team tournament, two semi-final losers will play against each other, and the winner and the final loser will play against each other.The winner will be the second representative.The two losing teams will go to the 2th national team tournament.
  3. In the 3rd national team decision tournament, 1 teams who lost the first round will play against each other, 8 teams who won the match and 4 teams who lost the quarterfinal will play against each other, and 4 team who won the tournament of the 4 winning teams will be the 1rd national team.
    • このトーナメントの決勝敗者は第5代表決定戦に、3回戦(準決勝)敗者2チームは第4代表決定トーナメントの1回戦に、2回戦敗者4チームは第6代表決定トーナメントに回る。1回戦敗者4チームはここで脱落となる(ただし2018年は成績に応じて1チームだけ第6代表決定トーナメントに回る)。
  4. In the 4th national team tournament, two semi-final losers of the 3rd national team will play against each other, and the winner will play against the loser of the 2st round of the 2nd national team.The winner goes to the national team tournament, and the loser goes to the 1th national team tournament.
    • ↑ Play against the winner and the final loser of the 2nd national team tournament.The winner will be the 4th national team, and the loser will go to the 5th national team deciding match.
  5. In the 5th national team final, the final losers of the 3rd national team tournament and the 4th national team final tournament will play against each other.The winner will be the 5th national team, and the loser will go to the 6th national team deciding match.
  6. 第6代表決定トーナメントは第3代表決定トーナメントの2回戦敗者4チームが対戦し、勝ち上がった1チームと第4代表決定トーナメント1回戦敗者が対戦、その勝者が第4代表決定トーナメント2回戦敗者が対戦、その勝者が第5代表決定戦敗者と対戦し、勝者が最後の第6代表になる。
In the case of Kinki area
  1. First, a tournament will be held by 12 teams, and the winning team will be the first representative.All 1 defeated teams will go to the repechage.
  2. Next, the second national team finals by the semi-final / final losers, the third national team finals by the quarter-final losers, and the fourth national team finals by the first round losers will be held.
    • In the second national team tournament, two semi-final losers will play against each other, and the winner and the final loser will play against each other.The winner will be the second representative.The final loser of this tournament goes to the 2rd national team final, and the 2st round (semi-final) loser goes to the 2th national team final tournament.
  3. In the 3rd national team decision tournament, 4 teams of the quarterfinal losers will play against each other, and the winning team and the 1nd national team finalist will play against each other.The winner will be the third representative.The final loser of this tournament goes to the 2th national team final, and the 3nd round (semi-final) loser goes to the 4th national team final tournament. The loser in the first round will go to the second round of the 2th national team tournament.
  4. In the 4th national team decision tournament, 1 teams who lost the 4st round will play against each other, and the 2 winners and 4 teams who lost the 1st round of the 2th national team will play against each other.The five losing teams so far will be dropped out here.
    • ↑ Two winners will play against each other, and the winner will play against the loser of the second national team tournament, and the winner will play against the loser of the third national tournament.The winner will be the 2th national team, and the losers in the final and 2rd round will go to the 1th national team tournament.
  5. In the 5th national team decision tournament, the final loser of the 4th national team decision tournament and the 3rd round loser will play against each other, and the winner will play against the 3rd national team final tournament semi-final loser.The winner will be the final 5th representative.

footnote

  1. ^ Example:[1]89th Selected High School Baseball TournamentEssentials
  2. ^ 例えば1レースに4人ずつ参加する形態の場合、8人が準々決勝から準決勝へと進むことになり、まず、1組4人ずつで準決勝2レースを行い、その結果に従って準決勝各組の1着と2着の者は決勝へ、準決勝各組の3着と4着の者は5~8位決定戦に回ることになる
  3. ^ For example, in the case of a tournament tournament with 10 participating teams, the tournament table is usually an incomplete binary tree structure, and generally 1 teams from the 4st round and the other 6 teams from the 2nd round.However, not all 2 teams from the 6nd round are seeds, and there may be cases where the seed target does not exist, or there may be a setting / operation method in which the seed target starts from the 1st round.In this way, the seed target is based on the setting criteria of the management side of the tournament.
  4. ^ Tournament table for high school soccer prefectural tournament, what is this www
  5. ^ In the above example, by putting C and E who lost in the second round into the opposite mountain on the back highway, the same battle card will not suddenly occur in the second round on the back highway.
  6. ^ When both players who played undefeated each other advanced to the final.For example, the first periodClean battleThen, the game was organized in the 4th qualifying roundTomomi KaiとKana SatomiBoth of them won the qualifying and the main race,Fifth gameIt was decided to rematch at.
  7. ^ Example: 31st ABS Japan Open Bowling Championship However, it is displayed as double illumination and is incorrect.
  8. ^ Once on the winner side and once on the loser side.Or, once on the winner side and once in the final (when rematching, up to 1 times in the final, 1 times in total).

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