Player · 175 career games · 2018-19–2023-24
Yuumi Uotani
Riichis fairly rarely. Stands out for a lowish win rate and late riichi. Career record: -1.6pt per game, but allowing for luck the difference from average is not clear yet.
Actual / game
-1.6
175 career games
Skill estimate / game
-0.9
90% interval -5.2 to +3.4
Estimate, luck removed
+1.9
adjusted for starting hands, draws, ura-dora
Weight of the record
56%
share of the estimate from the record
Styleleague percentile, career
Color only for metrics with a good side (red = good, blue = bad). Metrics of style, such as riichi rate, call rate and tile efficiency match rate, are gray. For tenpai turn, further right means later (a larger turn number). Values are estimates.
Placements175 career games, average placement 2.51
- 1st23.4%41×
- 2nd25.7%45×
- 3rd26.9%47×
- 4th24.0%42×
Riichi and callsbalance and outcome of hands with riichi or calls
Income is the average points won or lost in those hands (riichi sticks and honba included).
Net efficiency and morecalculated as on Mahjong Soul Paifuya, per hand
Deal-in loss = deal-in rate × average deal-in; net efficiency = win rate × average win − deal-in loss. Win and deal-in values include honba and riichi sticks. Win turn is the number of tiles discarded at the table when the win came ÷ 4 + 1. Win efficiency (win rate × average win) is not shown: players with a high win rate win smaller hands, the two cancel out, and differences between players cannot be told apart from chance.
Skill estimateleague percentile of the estimates
Luckfurther right is luckier; values are differences from the league average (the dealer tsumo rate is the rate itself)
Where the points came fromchange in expected points, all stages
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 381 | +7579.3 | +43.3 |
| Deal-ins | 215 | -3338.2 | -19.1 |
| Others' tsumo | 588 | -4327.7 | -24.7 |
| Ron between others | 484 | -315.4 | -1.8 |
| Exhaustive draws | 451 | +129.2 | +0.7 |
Hand balance breakdownpoints won or lost per hand, all stages
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 8.7% | +732 | +919 | -187 |
| Wins with calls | 6.1% | +373 | +382 | -10 |
| Dama wins | 3.1% | +243 | +173 | +70 |
| Deal-ins to riichi | 4.5% | -351 | -360 | +9 |
| Deal-ins to open hands | 3.5% | -167 | -203 | +36 |
| Deal-ins to dama | 2.1% | -106 | -101 | -5 |
| Others' tsumo | 27.7% | -757 | -752 | -5 |
| Other (exhaustive draws, etc.) | 44.1% | -39 | -60 | +21 |
| Total (per hand) | -74 |
Every career number (estimate, 90% interval, weight of the record)
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.51 | 2.51 (2.40 to 2.61) | 55% | 43 | 175 games |
| Points per game | -1.6 | -0.9 (-5.2 to 3.4) | 56% | 33 | 175 games |
| Points per game, luck removed | 3.0 | 1.9 (-1.9 to 5.7) | 64% | 84 | 175 games |
| 1st-place rate | 23.4% | 24.1% (20.0% to 28.3%) | 58% | 29 | 175 games |
| 4th-place rate | 24.0% | 24.4% (20.2% to 28.6%) | 59% | 64 | 175 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 18.0% | 18.5% (17.3% to 19.7%) | 73% | 5 | 2,119 hands |
| Deal-in rate | 10.1% | 10.4% (9.5% to 11.3%) | 69% | 82 | 2,119 hands |
| Riichi rate | 20.5% | 21.1% (19.8% to 22.4%) | 74% | 11 | 2,119 hands |
| Call rate | 22.6% | 22.6% (21.1% to 24.1%) | 97% | 47 | 2,119 hands |
| First riichi rate | 76.7% | 76.4% (73.9% to 78.8%) | 49% | 70 | 434 riichi |
| Average riichi turn | 9.67 | 9.58 (9.36 to 9.80) | 72% | 7 | 434 riichi |
| Average win value | 6,734 | 6,677 (6,377 to 6,978) | 61% | 72 | 381 wins |
| Average deal-in value | 5,740 | 5,674 (5,365 to 5,983) | 42% | 27 | 215 deal-ins |
| Win efficiency | 1,347 | 1,449 (1,374 to 1,524) | 20% | 3 | 2,119 hands |
| Deal-in loss | 608 | 624 (566 to 682) | 48% | 70 | 2,119 hands |
| Net efficiency | 739 | 786 (668 to 903) | 52% | 17 | 2,119 hands |
| Push rate vs riichi (1-shanten) | 41.2% | 41.1% (37.6% to 44.5%) | 68% | 52 | 379 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 24.3% | 24.5% (21.4% to 27.7%) | 83% | 43 | 428 hands facing riichi |
| Tenpai rate after the first call | 27.0% | 26.8% (23.7% to 29.9%) | 89% | 58 | 478 first calls |
| Average win turn | 12.83 | 12.42 (12.29 to 12.54) | 8% | 3 | 381 wins |
| Tenpai rate at exhaustive draws | 43.2% | 42.3% (39.1% to 45.5%) | 72% | 82 | 451 exhaustive draws |
| Staying in vs riichi | 13.0% | 13.7% (12.5% to 14.8%) | 35% | 21 | 1,102 hands facing an opponent’s riichi |
| Tile efficiency match rate | 72.2% | 72.2% (71.6% to 72.9%) | 97% | 37 | 11,659 discards |
| Average ukeire loss (tiles) | 1.08 | 1.08 (1.03 to 1.12) | 95% | 56 | 11,226 discards |
| Breaking shape for value | 2.1% | 2.1% (1.9% to 2.3%) | 92% | 70 | 11,659 discards |
| Tenpai turn (luck-adjusted) | 8.35 | 8.20 (8.11 to 8.30) | 21% | 92 | 426 tenpai hands |
| Immediate riichi rate | 71.0% | 71.1% (67.9% to 74.3%) | 79% | 39 | 426 tenpai hands |
| Dama rate | 17.3% | 16.8% (14.1% to 19.4%) | 86% | 84 | 381 wins |
| Riichi income | 2,479 | 2,545 (2,122 to 2,968) | 54% | 31 | 434 riichi |
| Riichi win rate | 42.6% | 43.6% (40.3% to 46.9%) | 71% | 13 | 434 riichi |
| Riichi deal-in rate A | 10.8% | 13.8% (12.4% to 15.3%) | 14% | 98 | 434 riichi |
| Riichi deal-in rate B | 8.1% | 10.1% (8.5% to 11.7%) | 32% | 98 | 434 riichi |
| Riichi good-wait rate | 52.1% | 51.1% (48.0% to 54.2%) | 59% | 76 | 434 riichi |
| Riichi exhaustive draw rate | 24.4% | 22.6% (20.1% to 25.1%) | 64% | 100 | 434 riichi |
| Call income | 616 | 544 (297 to 792) | 45% | 72 | 478 calls |
| Win rate after calling | 27.2% | 28.1% (25.3% to 30.9%) | 65% | 15 | 478 calls |
| Deal-in rate after calling | 11.3% | 11.4% (9.4% to 13.3%) | 65% | 58 | 478 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.04 | 9 | 2,119 hands |
| Dora and red fives dealt | -0.03 | 7 | 2,119 hands |
| Draw luck | -0.4% | 9 | 26,298 tile draws |
| Ura-dora luck | -0.04 | 13 | 185 riichi wins |
| Ippatsu rate | -4.6% | 9 | 185 riichi wins |
| Avoiding a chase riichi (/first riichi) | +0.7% | 60 | 333 first riichi |
| Mangan+ tsumo against dealer rate | 11.7% | 68 | 588 tsumo against |
| Points from luck (/game) | -4.5 | 3 | 175 games |
By seasonRegular Season
2023-24 (26 games · skill estimate -0.1pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 60 | +1107.3 | +42.6 |
| Deal-ins | 37 | -577.0 | -22.2 |
| Others' tsumo | 81 | -550.4 | -21.2 |
| Ron between others | 92 | +14.1 | +0.5 |
| Exhaustive draws | 52 | -11.6 | -0.4 |
Luck
Every number for 2023-24
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.42 | 2.49 (2.29 to 2.68) | 15% | 69 | 26 games |
| Points per game | -0.5 | -0.1 (-8.1 to 7.9) | 16% | 55 | 26 games |
| Points per game, luck removed | 0.2 | 0.0 (-7.3 to 7.4) | 21% | 52 | 26 games |
| 1st-place rate | 30.8% | 26.0% (18.2% to 33.8%) | 17% | 73 | 26 games |
| 4th-place rate | 26.9% | 25.3% (17.4% to 33.2%) | 18% | 41 | 26 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 18.6% | 19.6% (17.3% to 21.9%) | 29% | 18 | 322 hands |
| Deal-in rate | 11.5% | 11.1% (9.3% to 12.8%) | 26% | 43 | 322 hands |
| Riichi rate | 20.8% | 22.2% (19.7% to 24.6%) | 30% | 18 | 322 hands |
| Call rate | 25.2% | 24.8% (21.3% to 28.3%) | 83% | 75 | 322 hands |
| First riichi rate | 74.6% | 75.8% (71.4% to 80.2%) | 13% | 35 | 67 riichi |
| Average riichi turn | 9.54 | 9.39 (8.98 to 9.81) | 28% | 29 | 67 riichi |
| Average win value | 6,252 | 6,524 (5,965 to 7,083) | 20% | 24 | 60 wins |
| Average deal-in value | 6,581 | 5,732 (5,208 to 6,257) | 11% | 4 | 37 deal-ins |
| Win efficiency | 1,294 | 1,468 (1,364 to 1,571) | 4% | 4 | 322 hands |
| Deal-in loss | 787 | 657 (553 to 761) | 12% | 15 | 322 hands |
| Net efficiency | 507 | 790 (574 to 1,005) | 14% | 7 | 322 hands |
| Push rate vs riichi (1-shanten) | 42.1% | 41.1% (34.6% to 47.7%) | 24% | 43 | 57 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 33.8% | 29.0% (22.9% to 35.2%) | 42% | 86 | 65 hands facing riichi |
| Tenpai rate after the first call | 18.5% | 21.6% (15.5% to 27.7%) | 57% | 24 | 81 first calls |
| Average win turn | 12.84 | 12.39 (12.24 to 12.53) | 1% | 9 | 60 wins |
| Tenpai rate at exhaustive draws | 40.4% | 40.1% (33.4% to 46.9%) | 22% | 43 | 52 exhaustive draws |
| Staying in vs riichi | 11.4% | 13.9% (12.0% to 15.7%) | 8% | 15 | 167 hands facing an opponent’s riichi |
| Tile efficiency match rate | 73.3% | 73.2% (71.6% to 74.9%) | 83% | 41 | 1,697 discards |
| Average ukeire loss (tiles) | 1.01 | 1.02 (0.93 to 1.12) | 73% | 49 | 1,647 discards |
| Breaking shape for value | 2.9% | 2.6% (2.1% to 3.0%) | 64% | 94 | 1,697 discards |
| Tenpai turn (luck-adjusted) | 8.15 | 8.17 (8.04 to 8.30) | 4% | 55 | 64 tenpai hands |
| Immediate riichi rate | 65.3% | 69.3% (63.2% to 75.5%) | 36% | 21 | 64 tenpai hands |
| Dama rate | 11.7% | 12.5% (7.3% to 17.8%) | 49% | 49 | 60 wins |
| Riichi income | 2,403 | 2,589 (1,813 to 3,365) | 15% | 38 | 67 riichi |
| Riichi win rate | 44.8% | 45.7% (39.3% to 52.0%) | 28% | 32 | 67 riichi |
| Riichi deal-in rate A | 14.9% | 14.3% (12.4% to 16.2%) | 3% | 43 | 67 riichi |
| Riichi deal-in rate B | 10.4% | 11.0% (8.4% to 13.6%) | 7% | 55 | 67 riichi |
| Riichi good-wait rate | 46.3% | 49.1% (43.4% to 54.8%) | 18% | 32 | 67 riichi |
| Riichi exhaustive draw rate | 20.9% | 19.6% (14.9% to 24.4%) | 22% | 69 | 67 riichi |
| Call income | 270 | 461 (33.18 to 888) | 12% | 32 | 81 calls |
| Win rate after calling | 28.4% | 29.5% (24.3% to 34.6%) | 24% | 43 | 81 calls |
| Deal-in rate after calling | 13.6% | 12.0% (8.4% to 15.6%) | 24% | 26 | 81 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.07 | 4 | 322 hands |
| Dora and red fives dealt | -0.06 | 18 | 322 hands |
| Draw luck | -0.6% | 32 | 3,824 tile draws |
| Ura-dora luck | -0.08 | 32 | 30 riichi wins |
| Ippatsu rate | -16.4% | 1 | 30 riichi wins |
| Avoiding a chase riichi (/first riichi) | -0.7% | 58 | 50 first riichi |
| Mangan+ tsumo against dealer rate | 13.6% | 21 | 81 tsumo against |
| Points from luck (/game) | -0.8 | 41 | 26 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 9.3% | +794 | +919 | -125 |
| Wins with calls | 7.1% | +380 | +382 | -2 |
| Dama wins | 2.2% | +120 | +173 | -52 |
| Deal-ins to riichi | 5.0% | -437 | -360 | -77 |
| Deal-ins to open hands | 3.4% | -120 | -203 | +83 |
| Deal-ins to dama | 3.1% | -251 | -101 | -150 |
| Others' tsumo | 25.2% | -642 | -752 | +110 |
| Other (exhaustive draws, etc.) | 44.7% | -71 | -60 | -12 |
| Total (per hand) | -228 |
2022-23 (24 games · skill estimate -2.2pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 45 | +810.7 | +33.8 |
| Deal-ins | 30 | -483.3 | -20.1 |
| Others' tsumo | 78 | -652.6 | -27.2 |
| Ron between others | 69 | +2.2 | +0.1 |
| Exhaustive draws | 70 | -23.8 | -1.0 |
Luck
Every number for 2022-23
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.88 | 2.55 (2.35 to 2.75) | 14% | 1 | 24 games |
| Points per game | -14.8 | -2.2 (-10.4 to 5.9) | 15% | 1 | 24 games |
| Points per game, luck removed | -15.0 | -2.9 (-10.4 to 4.6) | 20% | 4 | 24 games |
| 1st-place rate | 12.5% | 23.1% (15.1% to 31.0%) | 16% | 7 | 24 games |
| 4th-place rate | 33.3% | 26.3% (18.2% to 34.4%) | 17% | 14 | 24 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 15.4% | 18.7% (16.3% to 21.2%) | 27% | 4 | 292 hands |
| Deal-in rate | 10.3% | 10.8% (8.9% to 12.6%) | 24% | 52 | 292 hands |
| Riichi rate | 20.2% | 22.0% (19.5% to 24.6%) | 28% | 22 | 292 hands |
| Call rate | 22.6% | 22.7% (19.0% to 26.3%) | 82% | 58 | 292 hands |
| First riichi rate | 74.6% | 75.8% (71.3% to 80.4%) | 12% | 33 | 59 riichi |
| Average riichi turn | 9.63 | 9.41 (8.98 to 9.84) | 26% | 33 | 59 riichi |
| Average win value | 6,082 | 6,512 (5,910 to 7,114) | 15% | 14 | 45 wins |
| Average deal-in value | 5,587 | 5,622 (5,078 to 6,167) | 9% | 43 | 30 deal-ins |
| Win efficiency | 1,049 | 1,460 (1,356 to 1,564) | 3% | 1 | 292 hands |
| Deal-in loss | 602 | 635 (529 to 741) | 11% | 46 | 292 hands |
| Net efficiency | 447 | 786 (566 to 1,005) | 13% | 1 | 292 hands |
| Push rate vs riichi (1-shanten) | 33.9% | 39.2% (32.6% to 45.8%) | 24% | 33 | 56 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 23.4% | 24.7% (18.5% to 30.9%) | 41% | 33 | 64 hands facing riichi |
| Tenpai rate after the first call | 25.8% | 25.7% (19.2% to 32.2%) | 52% | 36 | 66 first calls |
| Average win turn | 12.29 | 12.38 (12.23 to 12.53) | 1% | 68 | 45 wins |
| Tenpai rate at exhaustive draws | 41.4% | 40.4% (34.3% to 46.5%) | 28% | 68 | 70 exhaustive draws |
| Staying in vs riichi | 14.0% | 14.1% (12.2% to 16.0%) | 7% | 62 | 157 hands facing an opponent’s riichi |
| Tile efficiency match rate | 72.3% | 72.4% (70.7% to 74.1%) | 83% | 52 | 1,614 discards |
| Average ukeire loss (tiles) | 1.20 | 1.16 (1.06 to 1.26) | 72% | 90 | 1,552 discards |
| Breaking shape for value | 1.9% | 1.9% (1.5% to 2.4%) | 63% | 43 | 1,614 discards |
| Tenpai turn (luck-adjusted) | 8.11 | 8.17 (8.04 to 8.30) | 3% | 33 | 56 tenpai hands |
| Immediate riichi rate | 64.6% | 69.3% (62.8% to 75.8%) | 33% | 14 | 56 tenpai hands |
| Dama rate | 15.6% | 14.3% (8.5% to 20.1%) | 42% | 58 | 45 wins |
| Riichi income | 2,432 | 2,597 (1,798 to 3,396) | 14% | 43 | 59 riichi |
| Riichi win rate | 42.4% | 45.1% (38.5% to 51.7%) | 25% | 33 | 59 riichi |
| Riichi deal-in rate A | 6.8% | 14.2% (12.2% to 16.1%) | 2% | 97 | 59 riichi |
| Riichi deal-in rate B | 6.8% | 10.8% (8.2% to 13.4%) | 6% | 79 | 59 riichi |
| Riichi good-wait rate | 54.2% | 50.5% (44.5% to 56.4%) | 16% | 74 | 59 riichi |
| Riichi exhaustive draw rate | 23.7% | 20.1% (15.2% to 25.1%) | 20% | 74 | 59 riichi |
| Call income | 182 | 456 (11.86 to 900) | 10% | 17 | 66 calls |
| Win rate after calling | 19.7% | 27.7% (22.3% to 33.2%) | 21% | 1 | 66 calls |
| Deal-in rate after calling | 12.1% | 11.6% (7.8% to 15.4%) | 20% | 39 | 66 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | +0.02 | 65 | 292 hands |
| Dora and red fives dealt | -0.04 | 20 | 292 hands |
| Draw luck | -0.8% | 7 | 3,665 tile draws |
| Ura-dora luck | -0.13 | 11 | 25 riichi wins |
| Ippatsu rate | +0.3% | 58 | 25 riichi wins |
| Avoiding a chase riichi (/first riichi) | +4.9% | 84 | 44 first riichi |
| Mangan+ tsumo against dealer rate | 14.1% | 17 | 78 tsumo against |
| Points from luck (/game) | +0.2 | 43 | 24 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 8.6% | +659 | +919 | -260 |
| Wins with calls | 4.5% | +245 | +382 | -137 |
| Dama wins | 2.4% | +145 | +173 | -28 |
| Deal-ins to riichi | 4.1% | -361 | -360 | -1 |
| Deal-ins to open hands | 3.8% | -154 | -203 | +49 |
| Deal-ins to dama | 2.4% | -100 | -101 | +0 |
| Others' tsumo | 26.7% | -758 | -752 | -5 |
| Other (exhaustive draws, etc.) | 47.6% | -70 | -60 | -11 |
| Total (per hand) | -395 |
2021-22 (26 games · skill estimate -0.7pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 62 | +1123.8 | +43.2 |
| Deal-ins | 28 | -451.0 | -17.3 |
| Others' tsumo | 95 | -701.3 | -27.0 |
| Ron between others | 59 | -106.9 | -4.1 |
| Exhaustive draws | 55 | +31.7 | +1.2 |
Luck
Every number for 2021-22
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.69 | 2.53 (2.33 to 2.72) | 15% | 27 | 26 games |
| Points per game | -4.2 | -0.7 (-8.7 to 7.3) | 16% | 36 | 26 games |
| Points per game, luck removed | 0.4 | 0.1 (-7.2 to 7.4) | 21% | 49 | 26 games |
| 1st-place rate | 23.1% | 24.7% (16.9% to 32.5%) | 17% | 36 | 26 games |
| 4th-place rate | 30.8% | 25.9% (18.0% to 33.8%) | 18% | 27 | 26 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 20.7% | 20.2% (17.8% to 22.6%) | 27% | 52 | 299 hands |
| Deal-in rate | 9.4% | 10.5% (8.7% to 12.4%) | 24% | 81 | 299 hands |
| Riichi rate | 19.1% | 21.7% (19.1% to 24.2%) | 29% | 14 | 299 hands |
| Call rate | 24.7% | 24.4% (20.8% to 28.1%) | 82% | 74 | 299 hands |
| First riichi rate | 61.4% | 74.4% (69.8% to 78.9%) | 11% | 4 | 57 riichi |
| Average riichi turn | 9.86 | 9.47 (9.03 to 9.90) | 25% | 33 | 57 riichi |
| Average win value | 6,450 | 6,562 (6,008 to 7,116) | 20% | 39 | 62 wins |
| Average deal-in value | 6,150 | 5,671 (5,121 to 6,222) | 9% | 20 | 28 deal-ins |
| Win efficiency | 1,491 | 1,475 (1,371 to 1,579) | 3% | 55 | 299 hands |
| Deal-in loss | 591 | 633 (528 to 739) | 12% | 55 | 299 hands |
| Net efficiency | 900 | 844 (625 to 1,062) | 13% | 55 | 299 hands |
| Push rate vs riichi (1-shanten) | 45.8% | 42.0% (35.6% to 48.5%) | 25% | 90 | 59 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 31.5% | 28.2% (22.3% to 34.1%) | 45% | 97 | 73 hands facing riichi |
| Tenpai rate after the first call | 31.1% | 28.6% (22.3% to 34.9%) | 55% | 68 | 74 first calls |
| Average win turn | 12.64 | 12.38 (12.24 to 12.53) | 1% | 36 | 62 wins |
| Tenpai rate at exhaustive draws | 43.6% | 40.9% (34.3% to 47.5%) | 23% | 68 | 55 exhaustive draws |
| Staying in vs riichi | 15.4% | 14.2% (12.3% to 16.0%) | 8% | 84 | 182 hands facing an opponent’s riichi |
| Tile efficiency match rate | 72.4% | 72.5% (70.8% to 74.1%) | 83% | 65 | 1,643 discards |
| Average ukeire loss (tiles) | 1.07 | 1.07 (0.97 to 1.17) | 73% | 49 | 1,578 discards |
| Breaking shape for value | 2.1% | 2.1% (1.6% to 2.5%) | 63% | 52 | 1,643 discards |
| Tenpai turn (luck-adjusted) | 8.48 | 8.18 (8.05 to 8.31) | 3% | 78 | 55 tenpai hands |
| Immediate riichi rate | 70.7% | 71.3% (64.8% to 77.8%) | 33% | 39 | 55 tenpai hands |
| Dama rate | 22.6% | 18.0% (12.8% to 23.2%) | 50% | 94 | 62 wins |
| Riichi income | 1,702 | 2,500 (1,695 to 3,306) | 13% | 14 | 57 riichi |
| Riichi win rate | 47.4% | 46.3% (39.7% to 53.0%) | 25% | 46 | 57 riichi |
| Riichi deal-in rate A | 19.3% | 14.4% (12.5% to 16.3%) | 2% | 17 | 57 riichi |
| Riichi deal-in rate B | 10.5% | 11.0% (8.4% to 13.6%) | 6% | 39 | 57 riichi |
| Riichi good-wait rate | 52.6% | 50.2% (44.2% to 56.2%) | 16% | 62 | 57 riichi |
| Riichi exhaustive draw rate | 12.3% | 17.9% (13.0% to 22.9%) | 19% | 11 | 57 riichi |
| Call income | 970 | 540 (105 to 975) | 11% | 87 | 74 calls |
| Win rate after calling | 28.4% | 29.5% (24.2% to 34.8%) | 22% | 46 | 74 calls |
| Deal-in rate after calling | 8.1% | 10.8% (7.1% to 14.4%) | 22% | 78 | 74 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | +0.03 | 62 | 299 hands |
| Dora and red fives dealt | -0.02 | 23 | 299 hands |
| Draw luck | -0.5% | 36 | 3,708 tile draws |
| Ura-dora luck | -0.18 | 1 | 27 riichi wins |
| Ippatsu rate | -4.9% | 22 | 27 riichi wins |
| Avoiding a chase riichi (/first riichi) | -0.4% | 33 | 35 first riichi |
| Mangan+ tsumo against dealer rate | 9.5% | 79 | 95 tsumo against |
| Points from luck (/game) | -4.6 | 27 | 26 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 9.0% | +686 | +919 | -233 |
| Wins with calls | 7.0% | +429 | +382 | +47 |
| Dama wins | 4.7% | +376 | +173 | +203 |
| Deal-ins to riichi | 5.4% | -445 | -360 | -85 |
| Deal-ins to open hands | 2.7% | -124 | -203 | +79 |
| Deal-ins to dama | 1.3% | -42 | -101 | +59 |
| Others' tsumo | 31.8% | -880 | -752 | -128 |
| Other (exhaustive draws, etc.) | 38.1% | +5 | -60 | +65 |
| Total (per hand) | +4 |
2020-21 (26 games · skill estimate -1.1pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 57 | +1076.9 | +41.4 |
| Deal-ins | 28 | -428.2 | -16.5 |
| Others' tsumo | 95 | -795.0 | -30.6 |
| Ron between others | 69 | -58.8 | -2.3 |
| Exhaustive draws | 77 | +24.8 | +1.0 |
Luck
Every number for 2020-21
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.58 | 2.51 (2.31 to 2.70) | 15% | 39 | 26 games |
| Points per game | -6.9 | -1.1 (-9.1 to 6.9) | 16% | 25 | 26 games |
| Points per game, luck removed | 1.9 | 0.4 (-6.9 to 7.7) | 21% | 62 | 26 games |
| 1st-place rate | 15.4% | 23.4% (15.6% to 31.2%) | 17% | 8 | 26 games |
| 4th-place rate | 15.4% | 23.2% (15.3% to 31.1%) | 18% | 91 | 26 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 17.5% | 19.3% (16.9% to 21.6%) | 29% | 21 | 326 hands |
| Deal-in rate | 8.6% | 10.3% (8.5% to 12.1%) | 26% | 97 | 326 hands |
| Riichi rate | 24.8% | 23.4% (20.9% to 25.9%) | 31% | 86 | 326 hands |
| Call rate | 19.9% | 20.4% (17.0% to 23.9%) | 83% | 49 | 326 hands |
| First riichi rate | 84.0% | 77.2% (73.0% to 81.4%) | 15% | 97 | 81 riichi |
| Average riichi turn | 10.04 | 9.56 (9.18 to 9.95) | 32% | 4 | 81 riichi |
| Average win value | 6,086 | 6,496 (5,929 to 7,063) | 19% | 28 | 57 wins |
| Average deal-in value | 6,064 | 5,664 (5,113 to 6,215) | 9% | 32 | 28 deal-ins |
| Win efficiency | 1,198 | 1,464 (1,361 to 1,567) | 4% | 11 | 326 hands |
| Deal-in loss | 547 | 627 (524 to 731) | 12% | 76 | 326 hands |
| Net efficiency | 652 | 809 (595 to 1,024) | 14% | 32 | 326 hands |
| Push rate vs riichi (1-shanten) | 43.1% | 41.4% (34.9% to 47.9%) | 24% | 62 | 58 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 19.0% | 22.9% (16.7% to 29.1%) | 41% | 27 | 63 hands facing riichi |
| Tenpai rate after the first call | 27.7% | 26.7% (20.1% to 33.3%) | 51% | 45 | 65 first calls |
| Average win turn | 13.06 | 12.39 (12.24 to 12.54) | 1% | 11 | 57 wins |
| Tenpai rate at exhaustive draws | 42.9% | 40.9% (35.0% to 46.8%) | 30% | 76 | 77 exhaustive draws |
| Staying in vs riichi | 11.3% | 13.9% (12.0% to 15.7%) | 8% | 15 | 168 hands facing an opponent’s riichi |
| Tile efficiency match rate | 70.6% | 70.9% (69.3% to 72.5%) | 84% | 25 | 1,814 discards |
| Average ukeire loss (tiles) | 1.19 | 1.16 (1.06 to 1.25) | 75% | 62 | 1,749 discards |
| Breaking shape for value | 1.8% | 1.9% (1.4% to 2.3%) | 66% | 25 | 1,814 discards |
| Tenpai turn (luck-adjusted) | 8.29 | 8.17 (8.05 to 8.30) | 4% | 52 | 72 tenpai hands |
| Immediate riichi rate | 72.3% | 71.9% (66.0% to 77.8%) | 39% | 49 | 72 tenpai hands |
| Dama rate | 14.0% | 13.7% (8.3% to 19.0%) | 48% | 49 | 57 wins |
| Riichi income | 2,091 | 2,528 (1,788 to 3,268) | 18% | 35 | 81 riichi |
| Riichi win rate | 40.7% | 44.3% (38.4% to 50.3%) | 32% | 28 | 81 riichi |
| Riichi deal-in rate A | 7.4% | 14.1% (12.3% to 16.0%) | 3% | 100 | 81 riichi |
| Riichi deal-in rate B | 6.2% | 10.6% (8.1% to 13.1%) | 8% | 100 | 81 riichi |
| Riichi good-wait rate | 48.1% | 49.4% (44.0% to 54.8%) | 21% | 32 | 81 riichi |
| Riichi exhaustive draw rate | 24.7% | 20.6% (16.2% to 25.1%) | 25% | 83 | 81 riichi |
| Call income | 23.08 | 441 (-4.60 to 886) | 10% | 18 | 65 calls |
| Win rate after calling | 24.6% | 28.8% (23.3% to 34.2%) | 20% | 15 | 65 calls |
| Deal-in rate after calling | 10.8% | 11.4% (7.5% to 15.2%) | 20% | 56 | 65 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.01 | 35 | 326 hands |
| Dora and red fives dealt | -0.06 | 1 | 326 hands |
| Draw luck | -0.8% | 15 | 4,140 tile draws |
| Ura-dora luck | -0.11 | 18 | 33 riichi wins |
| Ippatsu rate | -10.7% | 11 | 33 riichi wins |
| Avoiding a chase riichi (/first riichi) | -1.1% | 18 | 68 first riichi |
| Mangan+ tsumo against dealer rate | 12.6% | 42 | 95 tsumo against |
| Points from luck (/game) | -8.8 | 4 | 26 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 10.1% | +793 | +919 | -126 |
| Wins with calls | 4.9% | +277 | +382 | -105 |
| Dama wins | 2.5% | +129 | +173 | -44 |
| Deal-ins to riichi | 4.9% | -417 | -360 | -57 |
| Deal-ins to open hands | 2.1% | -107 | -203 | +96 |
| Deal-ins to dama | 1.5% | -38 | -101 | +63 |
| Others' tsumo | 29.1% | -864 | -752 | -112 |
| Other (exhaustive draws, etc.) | 44.8% | -46 | -60 | +14 |
| Total (per hand) | -274 |
2019-20 (27 games · skill estimate 2.8pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 62 | +1447.2 | +53.6 |
| Deal-ins | 27 | -423.5 | -15.7 |
| Others' tsumo | 80 | -492.3 | -18.2 |
| Ron between others | 86 | -77.4 | -2.9 |
| Exhaustive draws | 64 | -0.9 | 0.0 |
Luck
Every number for 2019-20
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.15 | 2.44 (2.25 to 2.64) | 16% | 100 | 27 games |
| Points per game | 16.7 | 2.8 (-5.1 to 10.7) | 17% | 100 | 27 games |
| Points per game, luck removed | 21.8 | 4.7 (-2.5 to 11.9) | 22% | 100 | 27 games |
| 1st-place rate | 37.0% | 27.1% (19.4% to 34.9%) | 17% | 96 | 27 games |
| 4th-place rate | 18.5% | 23.7% (15.9% to 31.6%) | 18% | 84 | 27 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 19.4% | 19.8% (17.5% to 22.2%) | 29% | 72 | 319 hands |
| Deal-in rate | 8.5% | 10.3% (8.5% to 12.1%) | 25% | 93 | 319 hands |
| Riichi rate | 21.0% | 22.2% (19.7% to 24.7%) | 30% | 33 | 319 hands |
| Call rate | 16.3% | 17.4% (13.9% to 21.0%) | 83% | 33 | 319 hands |
| First riichi rate | 82.1% | 76.8% (72.4% to 81.2%) | 13% | 82 | 67 riichi |
| Average riichi turn | 9.19 | 9.30 (8.88 to 9.71) | 28% | 68 | 67 riichi |
| Average win value | 8,334 | 6,939 (6,386 to 7,493) | 20% | 100 | 62 wins |
| Average deal-in value | 5,415 | 5,608 (5,054 to 6,162) | 8% | 68 | 27 deal-ins |
| Win efficiency | 1,745 | 1,484 (1,380 to 1,587) | 4% | 96 | 319 hands |
| Deal-in loss | 474 | 619 (514 to 723) | 12% | 93 | 319 hands |
| Net efficiency | 1,271 | 896 (680 to 1,111) | 14% | 96 | 319 hands |
| Push rate vs riichi (1-shanten) | 43.1% | 41.4% (34.9% to 47.9%) | 24% | 61 | 58 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 17.7% | 22.4% (16.1% to 28.6%) | 41% | 12 | 62 hands facing riichi |
| Tenpai rate after the first call | 36.5% | 30.6% (23.6% to 37.7%) | 46% | 68 | 52 first calls |
| Average win turn | 13.17 | 12.39 (12.24 to 12.54) | 1% | 1 | 62 wins |
| Tenpai rate at exhaustive draws | 45.3% | 41.4% (35.1% to 47.7%) | 26% | 72 | 64 exhaustive draws |
| Staying in vs riichi | 10.3% | 13.8% (11.9% to 15.7%) | 7% | 8 | 145 hands facing an opponent’s riichi |
| Tile efficiency match rate | 72.2% | 72.3% (70.7% to 73.9%) | 84% | 68 | 1,829 discards |
| Average ukeire loss (tiles) | 1.05 | 1.05 (0.95 to 1.15) | 75% | 33 | 1,749 discards |
| Breaking shape for value | 3.1% | 2.7% (2.3% to 3.1%) | 66% | 93 | 1,829 discards |
| Tenpai turn (luck-adjusted) | 8.62 | 8.19 (8.06 to 8.31) | 4% | 93 | 76 tenpai hands |
| Immediate riichi rate | 77.4% | 74.0% (68.1% to 79.8%) | 41% | 82 | 76 tenpai hands |
| Dama rate | 25.8% | 19.6% (14.4% to 24.8%) | 50% | 89 | 62 wins |
| Riichi income | 3,054 | 2,689 (1,913 to 3,465) | 15% | 72 | 67 riichi |
| Riichi win rate | 40.3% | 44.4% (38.1% to 50.8%) | 28% | 29 | 67 riichi |
| Riichi deal-in rate A | 9.0% | 14.2% (12.3% to 16.1%) | 3% | 89 | 67 riichi |
| Riichi deal-in rate B | 6.0% | 10.7% (8.1% to 13.3%) | 7% | 89 | 67 riichi |
| Riichi good-wait rate | 52.2% | 50.2% (44.5% to 55.9%) | 18% | 58 | 67 riichi |
| Riichi exhaustive draw rate | 31.3% | 21.9% (17.1% to 26.6%) | 22% | 100 | 67 riichi |
| Call income | 1,788 | 591 (129 to 1,053) | 8% | 100 | 52 calls |
| Win rate after calling | 36.5% | 30.9% (25.1% to 36.8%) | 17% | 79 | 52 calls |
| Deal-in rate after calling | 5.8% | 10.5% (6.5% to 14.6%) | 17% | 86 | 52 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.02 | 65 | 319 hands |
| Dora and red fives dealt | -0.00 | 50 | 319 hands |
| Draw luck | -0.0% | 29 | 3,934 tile draws |
| Ura-dora luck | +0.13 | 75 | 27 riichi wins |
| Ippatsu rate | -4.9% | 19 | 27 riichi wins |
| Avoiding a chase riichi (/first riichi) | +1.7% | 61 | 55 first riichi |
| Mangan+ tsumo against dealer rate | 2.5% | 100 | 80 tsumo against |
| Points from luck (/game) | -5.1 | 12 | 27 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 8.5% | +810 | +919 | -109 |
| Wins with calls | 6.0% | +412 | +382 | +29 |
| Dama wins | 5.0% | +524 | +173 | +351 |
| Deal-ins to riichi | 3.4% | -256 | -360 | +104 |
| Deal-ins to open hands | 3.4% | -189 | -203 | +14 |
| Deal-ins to dama | 1.6% | -42 | -101 | +59 |
| Others' tsumo | 25.1% | -593 | -752 | +160 |
| Other (exhaustive draws, etc.) | 47.0% | -50 | -60 | +10 |
| Total (per hand) | +616 |
2018-19 (27 games · skill estimate -1.5pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 50 | +944.3 | +35.0 |
| Deal-ins | 38 | -555.8 | -20.6 |
| Others' tsumo | 91 | -650.7 | -24.1 |
| Ron between others | 75 | -103.0 | -3.8 |
| Exhaustive draws | 68 | +114.8 | +4.3 |
Luck
Every number for 2018-19
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.70 | 2.53 (2.34 to 2.72) | 16% | 16 | 27 games |
| Points per game | -9.2 | -1.5 (-9.4 to 6.4) | 17% | 16 | 27 games |
| Points per game, luck removed | 1.3 | 0.3 (-7.0 to 7.5) | 22% | 60 | 27 games |
| 1st-place rate | 18.5% | 23.9% (16.2% to 31.6%) | 17% | 21 | 27 games |
| 4th-place rate | 33.3% | 26.4% (18.6% to 34.3%) | 18% | 16 | 27 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 15.5% | 18.7% (16.4% to 21.0%) | 29% | 1 | 322 hands |
| Deal-in rate | 11.8% | 11.1% (9.4% to 12.9%) | 26% | 36 | 322 hands |
| Riichi rate | 17.7% | 21.2% (18.7% to 23.7%) | 30% | 6 | 322 hands |
| Call rate | 26.4% | 25.8% (22.3% to 29.3%) | 83% | 75 | 322 hands |
| First riichi rate | 78.9% | 76.3% (71.8% to 80.9%) | 11% | 70 | 57 riichi |
| Average riichi turn | 9.58 | 9.40 (8.96 to 9.83) | 25% | 50 | 57 riichi |
| Average win value | 6,110 | 6,510 (5,923 to 7,097) | 17% | 26 | 50 wins |
| Average deal-in value | 4,913 | 5,544 (5,022 to 6,066) | 11% | 90 | 38 deal-ins |
| Win efficiency | 1,076 | 1,460 (1,356 to 1,563) | 4% | 1 | 322 hands |
| Deal-in loss | 613 | 636 (532 to 740) | 12% | 65 | 322 hands |
| Net efficiency | 463 | 783 (568 to 998) | 14% | 1 | 322 hands |
| Push rate vs riichi (1-shanten) | 40.8% | 40.8% (34.0% to 47.7%) | 21% | 50 | 49 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 25.5% | 25.5% (19.0% to 32.0%) | 38% | 46 | 55 hands facing riichi |
| Tenpai rate after the first call | 21.2% | 23.1% (17.0% to 29.1%) | 58% | 21 | 85 first calls |
| Average win turn | 13.04 | 12.39 (12.24 to 12.54) | 1% | 26 | 50 wins |
| Tenpai rate at exhaustive draws | 50.0% | 42.8% (36.6% to 48.9%) | 27% | 90 | 68 exhaustive draws |
| Staying in vs riichi | 14.0% | 14.1% (12.2% to 16.0%) | 7% | 46 | 157 hands facing an opponent’s riichi |
| Tile efficiency match rate | 73.4% | 73.4% (71.7% to 75.0%) | 84% | 70 | 1,706 discards |
| Average ukeire loss (tiles) | 1.00 | 1.02 (0.92 to 1.12) | 73% | 26 | 1,646 discards |
| Breaking shape for value | 1.9% | 1.9% (1.5% to 2.4%) | 64% | 46 | 1,706 discards |
| Tenpai turn (luck-adjusted) | 8.23 | 8.17 (8.04 to 8.30) | 3% | 41 | 58 tenpai hands |
| Immediate riichi rate | 73.9% | 72.4% (66.0% to 78.8%) | 34% | 55 | 58 tenpai hands |
| Dama rate | 16.0% | 14.5% (9.0% to 20.1%) | 45% | 46 | 50 wins |
| Riichi income | 2,795 | 2,646 (1,841 to 3,451) | 13% | 41 | 57 riichi |
| Riichi win rate | 40.4% | 44.6% (37.9% to 51.3%) | 25% | 23 | 57 riichi |
| Riichi deal-in rate A | 7.0% | 14.2% (12.3% to 16.1%) | 2% | 85 | 57 riichi |
| Riichi deal-in rate B | 5.3% | 10.7% (8.1% to 13.3%) | 6% | 85 | 57 riichi |
| Riichi good-wait rate | 63.2% | 51.9% (45.9% to 57.9%) | 16% | 100 | 57 riichi |
| Riichi exhaustive draw rate | 31.6% | 21.6% (16.6% to 26.6%) | 19% | 100 | 57 riichi |
| Call income | 69.41 | 434 (11.01 to 858) | 12% | 26 | 85 calls |
| Win rate after calling | 22.4% | 27.9% (22.9% to 33.0%) | 25% | 16 | 85 calls |
| Deal-in rate after calling | 11.8% | 11.6% (8.1% to 15.1%) | 25% | 50 | 85 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.19 | 1 | 322 hands |
| Dora and red fives dealt | -0.03 | 16 | 322 hands |
| Draw luck | -0.3% | 36 | 4,015 tile draws |
| Ura-dora luck | +0.13 | 75 | 23 riichi wins |
| Ippatsu rate | +2.0% | 68 | 23 riichi wins |
| Avoiding a chase riichi (/first riichi) | +0.9% | 63 | 45 first riichi |
| Mangan+ tsumo against dealer rate | 16.5% | 8 | 91 tsumo against |
| Points from luck (/game) | -10.5 | 1 | 27 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 7.1% | +621 | +919 | -298 |
| Wins with calls | 5.9% | +292 | +382 | -90 |
| Dama wins | 2.5% | +163 | +173 | -10 |
| Deal-ins to riichi | 4.3% | -249 | -360 | +111 |
| Deal-ins to open hands | 5.3% | -268 | -203 | -65 |
| Deal-ins to dama | 2.2% | -106 | -101 | -5 |
| Others' tsumo | 28.3% | -761 | -752 | -9 |
| Other (exhaustive draws, etc.) | 44.4% | +9 | -60 | +69 |
| Total (per hand) | -298 |
Columns about this player
- Is Uotani Yuumi strong? (Japanese)Her career results rank 33rd of 49. With measurable luck removed, her skill estimate rises to 10th in the league. The error is large, and the column looks at how much can be said.
Players with a similar styleclosest career style metrics first
- Kanako MaruyamaFormer M.League playerIn common: Late riichi, Low win rate
- Kazunori TakizawaKONAMI MAH-JONG FIGHT CLUBIn common: Dama-heavy, Riichis rarely, Few deal-ins
- Seiichi KondoFormer M.League playerIn common: Late riichi, Low win rate, Dama-heavy
* Twelve style metrics, including call rate, riichi rate, win rate, deal-in rate, hand value, riichi speed and immediate riichi rate, are put on the same scale and compared; the players closest overall are listed. Metrics supported more strongly by the data receive more weight. The comparison shows how similar the players' styles are, not which is better. Differences are often small, so the order may change.