Nagoya Nears
Eric Blair
As Nagoya nears, EB gets a head start on the pack by focussing on points of interest, past and present surrounding sumo's hottest basho

Rikishi of Old
Joe Kuroda
The 42nd yokozuna Kagamisato falls under the JK microscope

Heya Peek
Barbara Ann Klein
Kokonoe-beya and the Chiyo Boys

SFM Interview
Mark Buckton
SFM's Ed-in-Chief interviews Estonian up and comer Baruto

Sumo 101
Barbara Ann Klein
SFM's Editor looks at all the twists and turns involved in the tsunauchi-shiki and adds a photo bonanza to boot

Photo Bonanza
See the Natsu
Basho and Kokonoe-beya photo bonanzas

Natsu Basho Summary
Lon Howard
Lon gives us his Natsu Basho summary, along with the henka sightings results

Lower Division Rikishi
Mikko Mattila
Mikko Mattila lets you know what is going on down below the curtain

Nagoya Ones to Watch
Mark Buckton
MB's mixed bag of things to look out for in Nagoya

Kimarite Focus
Mikko Mattila
Our man Mikko takes us on a tour of several defensive oriented kimarite

Amateur Angles
Howard Gilbert
The first of our regular column pieces on the amateur sumo scene from a man who knows more than most

Sumo Game
Bruce Rae
For a look at his very own: PTYW (Pick The Yusho Winners)

Sumo in Print
Barbara Ann Klein
SFM's Editor reviews the newly published biography of Akebono, Gaijin Yokozuna – but sees it as more than just a biography

Kokugi Connections
Todd Lambert
Check out Todd's bimonthly focus on 3 of the WWW's best sumo sites around

Fan Debate
Facilitator – Lon Howard
Sumo author Mina Hall and long long time fan Jim Bitgood discuss how to make sumo more entertaining – if such a concept is even necessary

SFM Cartoons
Benny Loh & Stephen Thompson
 
Sit back and enjoy the offerings of sumo's premier artists

Let’s Hear From You
What was it that
made you a sumo fan? James Vath in rural Japan lets us in on his gateway to the sport

Readers’ Letters
See what our readers had to say since we last went out

Sumo Quiz
The Quizmaster
Answer the Qs and win yourself next basho’s banzuke.

two men – and mostly Kyokushuzan – are entirely responsible for any heightened henka action in the last two basho.

Kyokushuzan's 18 henka during our study period are 10 more than anyone else – Hokutoriki and Shunketsu have 8 each. Hokutoriki has statistically made the most efficient use as his 7 wins in those bouts give him an 88 per cent win percentage, compared with 72 for Kyokushuzan.

Three rikishi appear to sometimes employ some sleight-of-feet at the tachiai without actually pulling off a henka. Chiyotaikai and Aminishiki have each been nominated seven times with only one getting the voter's nod. Neither of these men appearing here would raise eyebrows, but the third one raised even my eyebrow, and I'm the one doing the nominating – none other than the guy everyone praises for plowing straight ahead at the tachiai, every fan's good guy – Ama! Ama has received eight nominations with only one being voted a henka. I'm guessing that because he's so small, he gets an elevated amount of this kind of praise any time he does go straight forward. But I'm not picking on him (crossing heart).
In a minimum of 60 bouts during the six basho we've studied, here are the men who have yet to henka: Futeno, Iwakiyama, Katayama, Takamisakari, Tamanoshima, Tochiazuma, Tochinohana, Tochinonada, Tokitenku, Tosanoumi, Toyonoshima and Wakanosato. Some of these rikishi have yet to be even nominated and none has been nominated more than once.

Kasugao continues to be the favorite target for the henka, at seven per cent of his bouts; followed by Kotoshogiku at six per cent, with Tosanoumi and Toyonoshima at five per cent each. Kasugao and Kotoshogiku have each lost four of five of those bouts, while conversely, Toyonoshima has won all four bouts he's been hit on, and Tosanoumi has won three of four. Kyokushuzan is again conspicuous here, but by his absence as he's been targeted only once in his 90 bouts – not exactly surprising when you look at his tachiai, or lack thereof. He did lose that bout, by the way, to – guess who – Asashoryu himself, who sidestepped Shoes-On and ran him directly out on day 9 of last year's Aki basho – Asashoryu's only henka.

Speaking of Asashoryu, he apparently has not put the ‘fear
of God’ into his opponents, as he's been henka'd three times – by Kotomitsuki, Hakuho and Aminishiki. It has yet to bear fruit as he's won all three. Conversely, Tochiazuma has yet to be henka'd, as have Hakurozan, Jumonji, Asasekiryu and Takekaze, among the notables there.

For me, an overt surprise is that Hokutoriki has been targeted only four times in the 90 bouts, because his chance of winning any bout rests almost entirely on his getting the jump on his opponent at the tachiai. He did lose three of four such bouts, as did Futeno and Tamanoshima, but so far, Roho and Iwakiyama are statistically the most inept at surviving henka, both having lost all four of the bouts at which they were targeted. Kotonowaka actually lost five of five, but he's retired now.

The overall win rate for the henka perpetrators is now at 63%, i.e., 63 winners in 100 henka. In February, I created some sub-categories for a deeper inspection of the win rate, and here are the updated numbers for those categories. In this part of the study, it should be recognized that the ‘Kyokushuzan Effect’ is not

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