Tenhou.net ranking: Difference between revisions

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[[Tenhou.net]] uses a ranking system, where players are ranking according to two criteria. The first criteria uses a combination of the '''kyuu ranking''' {{kana|級}} and the '''dan ranking''' {{kana|段}} systems. The other criteria is the ELO system, indicated as R####.
[[Tenhou.net]] ranks players with two separate categories:
* Rank: Rank points are gained when 1st/2nd, and lost when 4th place. Gaining rank points increases your rank, which are organized by '''Kyuu''' {{kana|級}} and '''Dan''' {{kana|段}}.
* Rating (R####): An Elo system, this increases when winning and decreases when losing. When playing against higher skill players, more points are gained, and less points are lost.


== Ranking system ==
== Ranking system ==
Tenhou.net uses two different number systems to determine player ranking: kyuu/dan ranks and the Elo system.  For every game, points may be awarded or deducted based on game placement (1st throught 4th).  The points awarded or deducted are noted in tables below.  Placing 1st or 2nd awards points, while 4th has points deducted.  Prior to the rank of 2級 (2-kyuu), players need not worry about point deductions.  Afterwards, that would no longer be the case.


Every time a player moves up in rank, the points in Tenhou default to the value indicated at '''base points''' {{kana|初期pt}} column. If those base points fall below zero, then the player drops a rank. If the player attains enough points to surpass the '''target points''' {{kana|昇段pt}}, then a rank promotion occurs.
===Rank points===
Tenhou starts each player at Rookie {{kana|新人}}. Immediately after ranking up from Rookie, players are given the rank of 10-kyuu. Gaining rank points will lower the kyuu rank, until 1-Kyuu. After 1-Kyuu, players receive the rank of 1-Dan, which goes all the way to 10-Dan. The highest rank is Tenhoui.


===Account sharing policy===
For every game, points may be awarded or deducted based on game placement (1st through 4th) - 1st/2nd receive points, while 4th loses points. Prior to the rank of 2-kyuu, points will not be deducted for 4th place.
In general, account sharing is prohibited.  Every Tenhou account code is reserved on an individual player basis. Any account found to have been shared will be warranted a ban from the ladder system. However, accounts may be shared for use in private lobbies.
 
Every time a player moves up in rank, the points in Tenhou default to the value indicated at '''base points''' {{kana|初期pt}} column. If the points fall below zero, then the player drops a rank. If the player attains enough points to meet/surpass the '''target points''' {{kana|昇段pt}}, then a rank promotion occurs.


===The R rating===
===R rating===
At the very beginning, every player begins with a base rating of 1500. That number increases or decreases based on wins or losses, as well as the relative rating of the other players.  The change in rating after each game is applied as follows:<ref>https://tenhou.net/man/#Rating</ref>
Each player begins with a base rating of 1500. This increases or decreases based on wins or losses, as well as the relative rating of the other players.  The change in rating after each game is applied as follows:<ref>https://tenhou.net/man/#Rating</ref>


  Rating_change = Adjustment*(Placement_base+(Average_table_rate - Own_rate)/40)
  Rating_change = Adjustment*(Placement_base+(Average_table_rate - Own_rate)/40)
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To access the higher two lobbies, both '''tokujou''' {{kana|特上}} and '''houou''' {{kana|鳳凰 }} also require minimum ratings.  For tokujou, a 4-dan {{kana|四段}} may access the lobby with a minimum of 1800.  Houou players are required to retain a rating of 2000 or greater at a rank of 7-dan or better {{kana|七段}}.
To access the higher two lobbies, both '''tokujou''' {{kana|特上}} and '''houou''' {{kana|鳳凰 }} also require minimum ratings.  For tokujou, a 4-dan {{kana|四段}} may access the lobby with a minimum of 1800.  Houou players are required to retain a rating of 2000 or greater at a rank of 7-dan or better {{kana|七段}}.
===Account sharing policy===
Account sharing is prohibited for ranked matches. Any account found to have been shared will be warranted a ban from the ladder system.  However, accounts may be shared for use in private lobbies.


===Individual player statistics===
===Individual player statistics===
1,760

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