IDs and Ranks

2008-05-25
Index
Tenhou Documentation

IDs

If you're going to play Tenhou frequently, you'll most likely want to reserve an alias and keep track of your games and rank. Tenhou has a very good ranking and record system, arguably the best available for riichi mahjong. IDs are character strings in the form ID########-########, where # is a string of alphanumeric ASCII characters.

Registering an ID

To register an ID, click the Register ID option on the Login window. In the textbox, type in an alias which will be associated with that ID (permenantly - you can't change it). It can't be an already registered alias and it can be up to 8 glyphs wide (that is, latin, greek, kana, kanji, or any other Unicode glyph). Press OK and a confirmation window will pop up with your ID asking if you are sure you want to register it. The left button confirms while the right cancels. The following window will have a textbox with a ID########-######## format string in it. Copy that into a text file or remember it for future use. Plug that string into the alias box of the login screen whenever you want to play with that ID. Tenhou will automatically keep ranks and records for the ID. See below for rank related stuff.

Purchasing an ID

If you're fancy and want to use the Windows client, you need to pay money for your ID to be recognized. There are three possible ways to do this, all of which seem to involve credit (and possibly debit) cards in some way. Go to http://tenhou.net/reg/ or click the payment button on the lobby menu. On the page, type out the first 8 characters after the ID part in your ID (ID00224466-AACCDDFF - you want the 00224466 part). The latter option to get to this page does this for you. There you are given three types of payment. All options are to pay for the account for a specified number of days. The number of days is followed by 日. The costs are in yen or moritapo points (see below). The price is in braces and followed by 円 (yen). Below are the payment methods: (in order as of 2008-05-25)

Ranks

Tenhou uses the Japanese Martial Arts Ranking System. The base rank is rookie (新人), then 9kyu (9級) down to 1kyu, then first dan (初段) up to 10dan (十段). 10dan is the maximum rank on Tenhou. As of writing, nobody is 9 or 10dan.

Below is a table of all the ranks and their respective kanji in ascending order (cycle would be top left to bottom left to top right to bottom right) for reference. Ranks appear to the right of people's aliases in-game.

Rookie (新人)
Kyuu (級)Dan (段)
9級初段
8級二段
7級三初
6級四段
5級五初
4級六段
3級七段
2級八段
1級九段
十段

There is loads of data associated with the ranking system. To advance from one level to another, points must be acquired by playing games. The Tenhou Manual has two tables with the information associated with these advancements, as well as some averages between each rank. Below is a translation of the table (with entries as of 2008-05-25 2008-08-19). Always refer to the Tenhou page for changes in these values, since it is subject to change.

4-Man

Rank Base pt. 1st 2nd 3rd 4th Required pt. Players Average Rate
新人 0
一般
+30







上級
+40



特上
+50

一般
+0







上級
+10



特上
+20
+0 0 30 00
9級 0 0 30 --
8級 0 0 30 --
7級 0 0 60 --
6級 0 0 60 --
5級 0 0 60 --
4級 0 0 90 --
3級 0 -10 100 --
2級 0 -20 100 --
1級 0 -30 100 --
初段 200 -30 400▼--
二段 400 -40 800▼--
三段 600 -501200▼--
四段 800 -601600▼--
五段1000 -702000▼--
六段1200 -802400▼--
七段1400 -902800▼--
八段1600 -1003200▼--
九段1800 -1103600▼--
十段2000 -120 ---▼--

3-Man

Rank Base pt. 1st 2nd 3rd Required pt. Players Average Rate
新人 0
一般
+30







上級
+50



特上
+70
+0 0 3000
9級 0 0 30 --
8級 0 0 30 --
7級 0 0 60 --
6級 0 0 60 --
5級 0 0 60 --
4級 0 0 90 --
3級 0 -10 100 --
2級 0 -20 100 --
1級 0 -30 100 --
初段 200 -30 400▼--
二段 400 -40 800▼--
三段 600 -501200▼--
四段 800 -601600▼--
五段1000 -702000▼--
六段1200 -802400▼--
七段1400 -902800▼--
八段1600 -1003200▼--
九段1800 -1103600▼--
十段2000 -120 ---▼--

The 一般, 上級 and 特上 refer to the game ranks (note the alignment with the respective ranks).

Rate

There is also a key statistic called rate that is always denoted by an R followed by a number. High rates simply mean better players. Tenhou changes your rate based on how well you play. The starting rate is 1500. A high rate lets you play in different game ranks and enter tournaments, so it is wise to keep it high.

Rate change is calculated as follows:

change = adjustment*(base+(average table rate - own rate)/40)

adjustment = 1-(games played*0.002) if games played < 400 | 0.2 if games played >=400

Base values
1st2nd3rd4th
4-man+30+10-10-30
3-man+300-30

(plaintext)


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Last updated: 2008-09-30