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Data Oyakata
Grand Sumo Predictions
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Yamato Hiroaki

Jonidan 9Highest rank: Jonidan 9

Strength index 1239
↗ Rising
181cm Career 137 wins, 143 losses
Championship
0 times
Special prizes
0 times
Kinboshi
0 times

Championships and special prizes are counted from 2000 Aki Basho onward; kinboshi are counted from 2000 Hatsu Basho onward.

Strength index over time
What is the strength index?▼

A single number that represents a rikishi's current competitive strength.

• Calculated from every bout's wins and losses alone (not banzuke rank or body measurements).

・It rises more for wins over strong opponents and falls more for losses to lower-rated opponents.. The opponent's strength is part of the calculation.

• Everyone starts around 1,500 and rises with winning records. Upper Makuuchi is typically around 2500 or more or higher.

• Unlike the human-set banzuke, it is driven only by results, so it can show improvement or decline before the ranking catches up.

Based on an Elo rating adapted from systems used in games such as chess.

🤖

In bouts involving this rikishi, Data Oyakata has correctly predicted 57%(48/84).

Rank and record in the last six basho

Most successful winning techniques wins by this technique

Most common losses by technique loses by this technique

Fighting-style profile

Winning techniques137 bouts. Relative values, with the most common style set to 100.

Pushing styleBelt wrestlingThrowing stylePulls and sidestepsLeg techniquesBackward-bending techniquesTwisting techniques
Belt wrestling-50.4% Pushing style-19.7% Throwing style-19.7% Pulls and sidesteps-8.8% Leg techniques-0.7% Twisting techniques-0.7%

Additional statistics

Early days (1-5)
52%
Late days (11-15)
52%
vs. Sanyaku and above
0%
0-0
CareerWin rate
48%
Win rate by venue
  • Tokyo 51% (75-72)
  • Fukuoka 47% (23-26)
  • Osaka 45% (19-23)
  • Nagoya 48% (20-22)

Win rate by tournament day (Days 1-15)

58
53
30
53
69
36
46
44
46
50
50
46
64
55
53
123456789101112131415

Each figure is the career win rate for that day. It shows whether a rikishi starts fast or improves late in a basho.

Frequent opponents

Open an opponent to view the head-to-head record.