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About Kamitsuumi

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  1. Kamitsuumi

    Hiro Morita’s “Sumo Prime Time”

    Thanks. On the Japanese side though, it's always the Kitanofuji-Mainoumi combo doing days 1 and 15.
  2. Kamitsuumi

    Aki 2022 discussion (results)

  3. Kamitsuumi

    Aki 2022 discussion (results)

    This guy's kimarite game is wild: tsuridashi 114 utchari 61 uwatenage 51 yorikiri 35 hatakikomi 22 uwatedashinage 20 sotogake 15 ketaguri 10 shitatenage 10 kirikaeshi 9
  4. Kamitsuumi

    Rikishi Status - 2022 Aki

    His father is the head sumo coach/principal at Tottori Johoku, one of the sumo powerhouse high schools. It's been speculated that Ishiura will be a sumo coach there, in order to secure a recruitment pipeline for Miyagino.
  5. Kamitsuumi

    Hiro Morita’s “Sumo Prime Time”

    Did Hiro lose a bit of seniority at NHK doing this? Usually he does the day 1 commentary, but this basho he was on day 2.
  6. Kamitsuumi

    COVID-delayed oyakata danpatsu-shiki

    Kaisei surely deserves a ceremony in the Kokugikan. But if Hakuho's danpatsushiki is "scheduled" to be October 1, 2023, I don't see how Kaisei is going to get his in a year.
  7. Kamitsuumi

    The first brazilian sekitori

    According to the Japanese wiki he was the rikishi who led the Brazil delegation at Nagano 1998. You can hear the announcer say his shikona at the time (and his real name) Ikemori.
  8. Kamitsuumi

    Aki banzuke trivia

    This is the query I checked: https://sumodb.sumogames.de/Query.aspx?show_form=0&rowcount=3&group_expand=on&group_by=basho&having=4&form1_rank=y2-y4, o2-o4, s2-s4, k2-k4 There doesn't seem to be any previous banzuke like this. Edit: my query misses cases where there is only 1 Yokozuna or 1 Ozeki, so I double checked these instances
  9. Kamitsuumi

    Kaisei Intai

  10. Kamitsuumi

    A (maybe) rikishi holding a (maybe) euphonium

    It looks like a smallpox vaccine scar, which usually is on the left arm. Could this image be flipped?
  11. Kamitsuumi

    Trivia bits

    The issue with the above is that you can't just multiple by 2 to get the answer: By inclusion-exclusion: {Probability of 9 consecutive heads or tails in 150} = {Probability of 9 consecutive heads in 150} + {Probability of 9 consecutive tails in 150} - {Probability of 9 consecutive heads and 9 consecutive tails in 150} Since the third term on the right hand size is non-zero, {Probability of 9 consecutive heads or tails in 150} < 2*{Probability of 9 consecutive heads in 150} Originally, in the nested for loop I had "range(1,10)" instead of "range(1,9)" (range is inclusive on the first parameter and exclusive on the second). This meant that I had an extra 1/512*P_{m-n} in each sum.
  12. Kamitsuumi

    Trivia bits

    That's not exactly correct since each "try" (i.e. streak of one side winning, or RNG flips for 1/256) take up a different number of bouts (up to 9). By my calculation (by that I mean my python script) it's about 24.7% for 150 bouts. from collections import defaultdict p = defaultdict(int) p[9] = 1/256 for m in range(10,151): chance = 1/256 for n in range(1,9): chance += 0.5**(n) * p[m-n] p[m] = chance
  13. Kamitsuumi

    Corona and sumo

    In December 1971, the Kyokai was discussed in the National Diet for its various issues (connections to the yakuza, health issues, etc), and in response the Kyokai decided to ban middle schoolers from joining. Any middle schoolers who already joined could only participate on weekends in Tokyo (3 bouts per Tokyo basho) until they graduate.
  14. Kamitsuumi

    Rikishi Status - 2022 Nagoya Basho

    M16w Daiamami out
  15. Kamitsuumi

    Stable and Ichimon Dominance

    Takasago: https://sumodb.sumogames.de/Banzuke.aspx?b=189206&h=on Ikazuchi/Takasago: https://sumodb.sumogames.de/Banzuke.aspx?b=189101&h=on Nishonoseki: https://sumodb.sumogames.de/Banzuke.aspx?b=194511&h=on Tokitsukaze (mostly Juryo): https://sumodb.sumogames.de/Banzuke.aspx?b=196201&h=on https://sumodb.sumogames.de/Query.aspx?show_form=0&heya=84&group_by=basho&having=10&form1_m=on&form1_j=on