
There are a couple more news-worthy items which have come up that I must share with you all, both related to heya. First up, Kakuryu has secured a kabu and will branch out with his own, independent stable: Otowayama. He takes Tokotsuru, the top-ranked Tokoyama (hairdresser) along with a couple of deshi, Hagane and his new recruit. Hagane is the only banzuke-ranked wrestler currently listed on the heya profile. This is fantastic news as the search has been a running drama for a few years with the 5-year shot clock running down.
Secondly, former Homasho (Tatsutagawa-oyakata) has officially been named acting stablemaster at Shikoroyama-beya, following the passing of Terao. Both he and Kakuryu…oops, Otowayama… will be gearing up in earnest for Hatsubasho once the New Year holidays calm down.
These machinations are often difficult for me to track in my head, so I am in the process of building a visualization based on the Kabu history pages at the SumoDB. There are a bunch of ways to look at these and I’m starting off with several different Gantt-style charts to look at the changes through time.
This first one that I would like to share is a list of all kabu, with color indicating whether the kabu holder is the stable master or a coach within another heya. What becomes apparent is that several names have long histories of being independent (Izutsu, Nishonoseki, Sadogatake) while others do not, like Otowayama and Ikazuchi. Homasho’s Tatsutagawa kabu has had a bit of a history as an independent heya but not as storied as Isegahama, obviously.
One thing that I would like to do is to tie the heya to exactly how storied or successful they were (have been). I’m trying to work out a defensible metric that I can use to gage such success through time. Maybe with the number of sanyaku wrestlers or top division wrestlers? It’s a tough call. Would you say that Oitekaze tops Isegahama as the most dominant heya, currently? Another tab on the visual already shows the holder by rank, as pictured on the left. Yokozuna are yellow, with lower ranking wrestlers darker shades of green. It’s interesting to see that according to the SumoDB data, gyoji had owned some of the kabu in the past.
I’ve got a draft version of another visualization that tracks the kabu by holder so that we can see how often some of these swap hands. Kobo, one of Hakuho’s former stablemates at Miyagino-beya, traded five different kabu during the ten years he remained a coach. Sanoyama is another kabu which seems to trade hands frequently, being held by Konishiki, Chiyotaikai, and recently Satoyama. However, with that visualization, there are so many holders and so few colors that it looks a bit crazy. Once I figure out a clean way to pair that down, it will be more helpful.

