Free tool段位
Tenhou rank calculator
Your dan, points, room and placement rates in. Points per game, games to promote, stable dan and your R trend out.
Your numbers
- Expected points a game, 2 dan in Joukyuu hanchan
- +3.75 pts
- 1st +60, 2nd +15, 3rd 0, 4th −60
- Break-even 4th rate
- 31.3%
- Your 25.0% is 6.3% under it. Keep your 1st and 2nd rates and you climb.
- Games to 3 dan
- ~107
- 1 day 20h at the table. 3 weeks at 5 a day.
- Stable dan in Joukyuu
- 3.00 dan
- Where these rates settle if you play forever: the dan where your expected points hit zero.
- R change a game
- Add your R
- Enter your R and games played to see where your rating is heading.
Your next 500 games, played 1,000 times
Each run draws every placement from your rates and applies the manual's promotion and demotion rules. Same inputs, same answer.
- Reach 3 dan
- 100%
- Typical games to get there
- 67
- Drop below 2 dan
- 22%
- Demotions per run
- 1.46
Nine in ten of the runs that got there took 198 games or fewer. Half the runs finish at 3 dan or higher.
- 5 dan1%
- 4 dan28%
- 3 dan54%
- 2 dan16%
- 1 dan1%
How to use this
- Pick your rank and type your points from the Tenhou lobby.
- Pick the room and game length you play most.
- Copy your 1st to 4th rates for that room from your stats page or Nodocchi. They have to add up to 100%.
- Add your R and games played if you want the rating outlook. Leave them blank otherwise.
- Set a target rank under the journey. Copy the share link to send the whole setup to a friend.
How to read the numbers
- Expected points: what one game is worth on average at your rank. Above zero, you climb.
- Break-even 4th rate: the 4th rate where your 1sts and 2nds stop paying for your 4ths. It drops every time you promote.
- Stable dan: where these rates settle over thousands of games. 7.0 in Houou means you hover around 7 dan.
- Journey: 1,000 runs of your next games. It shows how often you reach the target and how often a cold run drops you a rank first.
The rules this uses
Four-player ranked games only. 1st and 2nd pay by room, 3rd pays nothing, and 4th costs more at every dan. Hanchan points are 1.5 times East points.
| Room | 1st East / hanchan | 2nd East / hanchan | Who can sit |
|---|---|---|---|
| Ippan 一般 | +20 / +30 | +10 / +15 | Anyone who doesn't qualify for Tokujou (4 dan with R1800 or more). |
| Joukyuu 上級 | +40 / +60 | +10 / +15 | 1 kyu or higher, up to the point you qualify for Houou (7 dan with R2000). Below 1 kyu, paid accounts with 60 or more days left. |
| Tokujou 特上 | +50 / +75 | +20 / +30 | 4 dan or higher with R1800 or more. |
| Houou 鳳凰 | +60 / +90 | +30 / +45 | 7 dan or higher with R2000 or more, on a paid account. |
| Rank | Start | Promote at | 4th East | 4th hanchan |
|---|---|---|---|---|
| Newcomer 新人 | 0 | 20 | 0 | 0 |
| 9 kyu ９級 | 0 | 20 | 0 | 0 |
| 8 kyu ８級 | 0 | 20 | 0 | 0 |
| 7 kyu ７級 | 0 | 20 | 0 | 0 |
| 6 kyu ６級 | 0 | 40 | 0 | 0 |
| 5 kyu ５級 | 0 | 60 | 0 | 0 |
| 4 kyu ４級 | 0 | 80 | 0 | 0 |
| 3 kyu ３級 | 0 | 100 | 0 | 0 |
| 2 kyu ２級 | 0 | 100 | −10 | −15 |
| 1 kyu １級 | 0 | 100 | −20 | −30 |
| 1 dan 初段 | 200 | 400 | −30 | −45 |
| 2 dan 二段 | 400 | 800 | −40 | −60 |
| 3 dan 三段 | 600 | 1,200 | −50 | −75 |
| 4 dan 四段 | 800 | 1,600 | −60 | −90 |
| 5 dan 五段 | 1,000 | 2,000 | −70 | −105 |
| 6 dan 六段 | 1,200 | 2,400 | −80 | −120 |
| 7 dan 七段 | 1,400 | 2,800 | −90 | −135 |
| 8 dan 八段 | 1,600 | 3,200 | −100 | −150 |
| 9 dan 九段 | 1,800 | 3,600 | −110 | −165 |
| 10 dan 十段 | 2,000 | 4,000 | −120 | −180 |
- From 1 dan to 10 dan, negative points demote you. You restart the rank below on its start points.
- Kyu ranks never demote. Your points stop at 0.
- Leftover points vanish on every promotion and demotion. Reach 1,645 points at 4 dan and you still start 5 dan on 1,000.
- 4,000 points at 10 dan makes you Tenhoui (天鳳位), the top of the ladder.
- R change = game-count factor × (placement result + (table average R − your R) ÷ 40). The placement result is +30, +10, −10 and −30 for 1st to 4th. The factor is 1 − 0.002 × games played, and 0.2 from your 400th game on. A table average under 1500 counts as 1500. Every account starts on R1500.
- Stable dan = ((1st rate × a + 2nd rate × b) ÷ 4th rate − 20) ÷ 10, with a and b the room's East points for 1st and 2nd. It works because the East 4th-place loss at dan d is 20 + 10d.
The journey keeps your rates fixed and ignores R. A demotion under a room's dan floor moves you down a room: Houou to Tokujou below 7 dan, Tokujou to Joukyuu below 4 dan. Play time assumes 15 minutes an East game and 25 a hanchan.
Where the numbers come from
Rules: the official Tenhou manual, checked against Nodocchi
Every point value, threshold and formula on this page comes from the manual Tenhou publishes. Nodocchi's stat tracker carries the same rank table and computes stable dan the same way, and the tests compare the two.
- Tenhou manual (tenhou.net/man), sections 段級位制, Rating, ゲーム種類 and 段位効率
- Nodocchi (nodocchi.moe), whose rank table and stable-dan code match the manual
Tenhou can change the table without notice, and the manual says so. The one-game numbers are exact. The journey is a simulation of your rates, not a forecast of your play.
Want a pro to check your real hands?
Your rates tell you where you'll settle. Your logs tell you why. Send me a Tenhou replay and I'll show you the 4ths you could have turned into 3rds.
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