Guess the Natsu Banzuke 2.0

In my previous guest post, I made predictions for the Natsu banzuke right after the conclusion of the Haru basho. With the release of the official Natsu banzuke only 10 days away, I thought I’d update my predictions, based partly on the feedback I received from Tachiai readers. In addition to pointing out the inherent unpredictability of the banzuke due to subjective NSK committee decisions, commenters noted that the committee tends to favor higher-ranked rikishi over lower-ranked ones to a greater extent than my predictions did. With that in mind, here is a second attempt at the Natsu banzuke.

Rank East West
K Mitakeumi Yoshikaze (3)
M1 Chiyonokuni (3) Endo (4)
M2 Okinoumi (3) Chiyoshoma (4)
M3 Daieisho (4) Takanoiwa (5)
M4 Takarafuji (4) Aoiyama (5)
M5 Takekaze (6) Ikioi (6)
M6 Tochiozan (5) Hokutofuji (6)
M7 Shodai (7) Takakeisho (6)
M8 Shohozan (8) Sokokurai (9)
M9 Ichinojo (10) Ura (11)
M10 Kagayaki (10) Arawashi (13)
M11 Tochinoshin (11) Kotoyuki (14)
M12 Ishiura (12) Tokushoryu (14)
M13 Toyohibiki (14) Onosho (15)
M14 Daishomaru (14) Chiyotairyu (16)
M15 Kaisei (17) Oyanagi (17)
M16 Osunaarashi (18)

I rank-ordered the rikishi by a score based on their rank in the previous basho and their win-loss record. This score, given in parentheses, roughly corresponds to the rank the wrestler “deserves,” (i.e. 3 = M3), though of course the actual rank is affected by the ranks of others and the need to fill all the slots. So for instance, this time around, even though nobody below Mitakeumi had a score above 3, the KW, M1 and M2 slots still needed to be filled.

I then generally simply filled in the ranks from K1W to M16E in this order, with ties broken in favor of higher rank at Haru. The main consistent departure from this order is that those with make-koshi must drop a rank; this affected Takarafuji, Kagayaki, Tochinoshin, Ishiura, and Daishomaru, who otherwise might have been placed a rank or two higher. Takanoiwa, Ura, Arawashi, Kotoyuki, and Onosho benefited by being ranked a bit higher as a result of this rule.

I’ve indicated other deviations from this rank order by italics. I gave the nod to Endo over Okinoumi for M1W given Endo’s popularity and higher rank. I placed Tochiozan at M6 instead of M5 so that Takekaze and Ikioi, who had identical Haru performances at the same rank, would remain at the same rank. And I brought Osunaarashi back to makuuchi in favor of Myogiryu, who drops to Juryo, along with Sadanoumi, Kyokushuho, Nishikigi, and Chiyoo.

Differences in rank from my previous prediction are in color, red for higher and blue for lower; bold indicates differences of more than one step in rank. These predictions are more sensitive to assumptions about how rikishi with identical or very similar scores are ranked relative to each other, and therefore have lower confidence.

Have at it with your own predictions! I might try to compile how we did after the banzuke is released.

Natsu Banzuke Prediction

I am honored to be invited by Andy and Bruce to contribute this guest post. I’ve been following sumo for less than a year, and have learned so much from reading Tachiai. Judging by past basho, I believe that the banzuke for the next basho is mostly predictable based on the rikishi’s ranks and performances in the previous basho. Basically, for each rikishi, I assign a score that’s a combination of their previous rank and their win-loss record. The rikishi can then be sorted by this score and assigned to (any available) sanyaku and maegashira slots in order. The tiebreaker for rikishi with the same score is win-loss record. The main deviation from the straight score order is that rikishi with make-koshi must move down in rank, even if the formula would place them at (or above) their previous rank (indicated with *).

With these preliminaries out of the way, here are my predictions for Natsu:

Upper Sanyaku

Y1E  Kisenosato               Y1W Kakaryu

Y2E Harumafuji               Y2W Hakuho

O1E Terunofuji                 O1W Goeido

These are pretty self-explanatory. Kakaryu and Harumafuji stay in the same positions given their identical records and a head-to-head win by Kakaryu.

Lower Sanyaku

S1E Takayasu                    S1W Kotoshogiku (unless he retires)

S2E Tamawashi

KE Mitakeumi                  KW Okinoumi

The only “open” slot is the one at Komusubi vacated by Shodai. Mitakeumi doesn’t get to move up this time, as it usually takes 11 wins to “force” an extra slot, as Takayasu did for Haru. Given the terrible performance by the lower ranks, there were no good contenders for the Komusubi slot (really, by past standards, nobody deserves to be ranked above maegashira 3 at Natsu). The 3 contenders with equal scores are Okinoumi, Chiyonokuni, and Yoshikaze, and Okinoumi gets the nod by virtue of his double-digit wins. I wish Yoshikaze had picked up another win; he’s definitely the sentimental candidate for this slot.

Upper Maegashira

Given the devastation in the upper maegashira ranks at Haru, there will be a lot of turnover here; all of the predicted M1-M3 rikishi were ranked lower at Haru. There are some big jumps, with Daieisho and his 11 wins coming all the way up to M2 from M11.

M1    Chiyonokuni          Yoshikaze

M2    Daieisho                 Chiyoshoma

M3    Endo                        Tochiozan


A mix of guys moving up or dropping down (in some cases, waaay up—Takakeisho—or waaay down—Shodai, Takekaze, Ikioi, Sokokurai, Shohozan, Arawashi).

M4    Takarafuji*            Aoiyama

M5    Takanoiwa             Takakeisho

M6    Hokutofuji            Takekaze

M7    Ikioi                        Shodai

M8    Shohozan             Sokokurai

M9    Ichinojo                Ura

M10  Kayagiki*             Arawashi

Lower Maegashira

A mix of Juryo escapees and guys hanging on to Makuuchi.

M11  Tochinoshin*      Toyohibiki

M12  Ishiura*                Tokushoryu

M13  Kotoyuki               Onosho

M14  Daishomaru*      Chiyotairyu

M15  Oyanagi                Osunarashi

M16  Kyokutaisei

The promotions of Osunarashi and Kyokutaisei are perhaps the most speculative bits of the whole predicted banzuke, but I think they get the nod over Miogiryu and Kaisei, the last two contenders to hang on to Makuuchi but whose performances didn’t really warrant it.

Demoted to Juryo, from least to most likely:

Miogiryu, Kaisei, Kyokushuho, Sadanoumi, Nishigiki, Chiyoo.

Promoted to Makuuchi, from most to least likely:

Toyohibiki, Onosho, Chiyotairyu, Oyanagi, Osunarashi, Kyokutaisei.

Chiyomaru would be the next in line for promotion if someone retires or withdraws before Natsu. The other interesting candidate is Asanoyama, Juryo Yusho-doten along with Osunarashi, but it’s probably too big a jump all the way from J12 to Makuuchi. If he keeps performing like he has been, this young rikishi will get there soon enough.