HEAD-TO-HEAD
Head-to-Head Comparison
Career Head-to-Head
All career bouts, including juryo and below (broadcast tallies usually count makuuchi only).
Rating-based Forecast
Expected win rate (latest)
39.8%
正代 (R=1547)
vs
60.2%
一山本 (R=1621)
Glicko-2 expected score (opponent RD taken into account)
Forecast accuracy (6 bouts)
| Predicted win rate (正代) | 51.1% |
| Actual win rate | 16.7% |
| Delta | -34.5pt |
Positive = 正代 wins above rating expectation; negative = below.
Career Comparison
| Item | 正代 | 一山本 |
|---|---|---|
| Peak rating | 1889 (2020-09) | 1710 (2025-11) |
| Career bouts | 1,048 | 698 |
| Wins | 532 | 356 |
| Losses | 494 | 310 |
| Win rate | 52.3% | 53.3% |
| Current rank | Juryo #3 | Maegashira #12 |
| Active period | 2014-03 〜 2026-09 | 2017-01 〜 2026-09 |
Rating history (overlay)
Bout details (6)
| Basho | Day | Predicted | 正代 | vs | 一山本 |
|---|---|---|---|---|---|
| 2024-03 | 2 | 59% | ● | vs | ○ |
| 2024-07 | 2 | 54% | ● | vs | ○ |
| 2025-03 | 7 | 54% | ● | vs | ○ |
| 2025-11 | 7 | 56% | ○ | vs | ● |
| 2026-05 | 15 | 42% | ● | vs | ○ |
| 2026-07 | 4 | 42% | ● | vs | ○ |
Predicted = expected score at the start of that tournament (causal). Highlighted rows = upsets vs prediction.