Oitekaze Beya’s No Good, Very Bad May

Feel free to play with the visualization.

I updated the Heya visualization. Along with a map of the stables, it’s got a table of various metrics. One key metric is the “Kachi Koshi Ratio” for the May tournament. The table at the bottom has the raw numbers. But in the visualization, we see that Makuuchi Powerhouse Oitekaze stable had a terrible tournament and lies near the bottom with a .25. Only two small stables, Kagamiyama and Kataonami had a lower ratio (0). The darkest purples come from another small stable, Nishikido. Among the bigger stables, Mitakeumi’s Dewanoumi (.6875) and Kasugano (Aoiyama/Tochinoshin) did better than .6667.

Inspired by Josh’s article about a hypothetical rikishi, hoping to select a stable, I added the “Student/Teacher” metric. As a parent, the student/teacher ratio of local school districts is always of interest when seeking a new house or when making the decision to look at private schools. With a sumo-context, Kasugano-beya has a powerhouse of 7 coaches available to help develop their 18 wrestlers, including recently retired Tochiozan (Kiyomigata-Oyakata). To keep from loading every time you view, you can find the live visualization by clicking through the link below…or clicking on the picture above.

You can sort the table by name (English alphabetical) or by any of the metrics. I’m eager to hear what you all think. If there are any new metrics you’d like to see or if you’d like to discuss any of the metrics found here, leave a comment. It was surprising to me to see how many stables are outside the Ryogoku area. I will be tracking the Kachi-Koshi ratio by stable for the Tokyo tournaments. I am interested to know whether increased commute times lead to lower performance. Araiso’s stable is scheduled to be considerably farther out in Ibaragi than even Shikihide stable. Sadogatake is the farthest “large stable” from Kokugikan in Chiba prefecture. Sakaigawa is next, over in Saitama near Oitekaze.

5 thoughts on “Oitekaze Beya’s No Good, Very Bad May

  1. Not sure how meaningful KK ratio is as a metric considering the very nature of the banzuke and the match-making means that most rikishi’s individual likelihood of getting a kachikoshi is very close to 50% in every basho.

    • Yes. And I figure that over time, it will be very close to .500. It may just be interesting to see tournament-by-tournament as a general scorecard. What I hope to track is whether it changes in any significant way depending on distance to venue. I need to find the Nagoya addresses, kinda soon. I may never actually end up getting it.

      • Hi Andy, great work as ever, delighted that you have taken up an interest in testing the “commuting distance contributes adversely to stable performance” hypothesis ! The fact that you can test it prospectively in future tournaments will be a real strength. If you can actually get the addresses of the heyas’ bases in Nagoya that would be excellent, although given the smaller scale of the Nagoya conurbation I would be surprised if any of the stables find themselves having to stay as far away from the arena as Tatsunami and Shikihide are from Ryogoku (and potentially Araiso will be when they get set up). As a scientist, I’ll be happy to know the answer whatever the outcome but as you know, my guess is that Kisenosato has been so influenced by the ideas he picked up on his University course, and therefore the need for a building with a very big footprint (which presumably he can only afford if it’s out in deepest Ibaraki prefecture), that he may have lost sight of other considerations.


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