If you're around 5th or 6th dan in Tenhou (an online mahjong game), you're considered one of the strongest players in the company.

I'm currently stuck at rank 6 in Tenhou (an online mahjong platform).
That said, when I'm in a slump, I'm at a point where I might just barely drop to the 5th dan, so I'm in a pretty tough position.

This time, in order to distract myself from that painful reality, I'm going to write about something positive.

Results in company mahjong

I play mahjong at work.
The rules for in-house mahjong are such that it's easier to get dora tiles and to form winning hands, making it more advantageous to play aggressively than in Tenhou (an online mahjong platform).
There is also a tipping system, but I won't go into details here.

I'm in charge of managing the scores, and I receive score sheets even for matches held in other departments.
I input each of these into an Excel spreadsheet to manage them.

Here are my results from the company mahjong games.

Average score +5.90
Average rank 2.23
Ranking (1st-2nd-3rd-4th): 111-122-91-53
Number of games played: 377
Top finish rate: 29.441 TP3T
Last rate 14.06%
Win rate: 61.80%

Please forgive the frequent second-place finishes, as I'm still adjusting my offensive and defensive strategies.

I think there are many different kinds of strength in mahjong.
Among the elements considered, average rank and average score are easily identifiable indicators.
Since most of those numbers are better than everyone else's, I think you can see that overall he's among the best.

The strength of in-house mahjong players

That being said, the people who play mahjong within the company are of all different skill levels.
There are many different types of players, from those who play as a hobby or for socializing, to complete beginners, and even advanced players who regularly attend free sessions.

My workplace is classified as a "large company" under company law, but the number of people who play mahjong is small.
And even fewer people among them would find them challenging.
Those who seem like tough opponents are mostly middle-aged or older players, and they're all people who play what's known as "Showa-era mahjong."
His strengths include good judgment in deciding when to push and when to pull, an emphasis on closed hands, and mysterious concealed hands.
Among young people, there are hardly any who are considered strong players, and there are virtually no Tenhou players among them.

That's why I think he achieves such outstanding results, something you wouldn't see on Tenhou.

First of all, what percentage of players are at the top of the Tenhou 6th dan rank?

As of June 15, 2018, Tenhou has 336,708 active users.
And reaching rank 6 places you within the top 2162, or within the top 0.64%.
If you reach rank 5, you'll be ranked within the top 4483, or within the top 1.3%.

To use a university analogy, a 6th dan is equivalent to a standard score of 75, which is comparable to universities like Hitotsubashi University or Osaka University.
A 5th dan rank is equivalent to the level of Nagoya University or Kobe University.

To put it simplyA Tenhou 5th or 6th dan rank means that if you were to gather a random group of 150 to 300 Tenhou players, you would be among the top players.
Given his skill level even among people who enjoy mahjong, it's only natural that he would be even more impressive within a corporate setting.

conclusion

As explained above, I hope you understand that if you are at the 5th or 6th dan level in Tenhou (an online mahjong platform), you can be among the strongest players in company mahjong games.

Even so, the fact that the probability of winning is only about 30% is what makes mahjong so interesting.
That's about the same frequency as a .300 hitter getting one hit.

I think it's precisely because of this high win rate that people are willing to play mahjong with you, even if there's a difference in skill level.
If one strong player wins most of the matches, everyone else will get bored and stop wanting to play against them.
I think this level of win rate is a very good line, as it helps to blur the impression and memory of the matches.

Even if you can't quite reach the level of being considered a "strong player" on Tenhou, you might be at a level generally considered "strong" in other areas.
I hope to continue striving for improvement while comforting myself in this way.