Player · 38 career games · 2019-20–2020-21
Akira Wakutsu
Too little data yet to pin down the style. Career record: -10.5pt per game, but allowing for luck the difference from average is not clear yet.
Actual / game
-10.5
38 career games
Skill estimate / game
-2.3
90% interval -9.5 to +4.9
Estimate, luck removed
-2.9
adjusted for starting hands, draws, ura-dora
Weight of the record
22%
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.
Placements38 career games, average placement 2.74
- 1st23.7%9×
- 2nd18.4%7×
- 3rd18.4%7×
- 4th39.5%15×
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 | 77 | +1383.1 | +36.4 |
| Deal-ins | 56 | -844.6 | -22.2 |
| Others' tsumo | 124 | -911.3 | -24.0 |
| Ron between others | 93 | -61.6 | -1.6 |
| Exhaustive draws | 93 | +25.4 | +0.7 |
Hand balance breakdownpoints won or lost per hand, all stages
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 8.6% | +765 | +919 | -154 |
| Wins with calls | 4.1% | +235 | +382 | -147 |
| Dama wins | 4.7% | +246 | +173 | +73 |
| Deal-ins to riichi | 5.2% | -482 | -360 | -122 |
| Deal-ins to open hands | 5.0% | -242 | -203 | -39 |
| Deal-ins to dama | 2.5% | -142 | -101 | -41 |
| Others' tsumo | 28.0% | -788 | -752 | -36 |
| Other (exhaustive draws, etc.) | 42.0% | -65 | -60 | -6 |
| Total (per hand) | -475 |
Every career number (estimate, 90% interval, weight of the record)
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.74 | 2.55 (2.37 to 2.72) | 21% | — | 38 games |
| Points per game | -10.5 | -2.3 (-9.5 to 4.9) | 22% | — | 38 games |
| Points per game, luck removed | -10.5 | -2.9 (-9.4 to 3.5) | 28% | — | 38 games |
| 1st-place rate | 23.7% | 24.7% (17.7% to 31.8%) | 23% | — | 38 games |
| 4th-place rate | 39.5% | 28.4% (21.3% to 35.5%) | 24% | — | 38 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 17.4% | 19.0% (17.0% to 21.1%) | 36% | — | 443 hands |
| Deal-in rate | 12.6% | 11.5% (9.9% to 13.1%) | 32% | — | 443 hands |
| Riichi rate | 19.0% | 21.3% (19.1% to 23.5%) | 38% | — | 443 hands |
| Call rate | 16.3% | 17.1% (14.1% to 20.2%) | 87% | — | 443 hands |
| First riichi rate | 81.0% | 76.8% (72.6% to 81.0%) | 16% | — | 84 riichi |
| Average riichi turn | 9.06 | 9.24 (8.86 to 9.63) | 33% | — | 84 riichi |
| Average win value | 6,422 | 6,550 (6,032 to 7,069) | 24% | — | 77 wins |
| Average deal-in value | 6,427 | 5,754 (5,274 to 6,233) | 16% | — | 56 deal-ins |
| Win efficiency | 1,245 | 1,463 (1,363 to 1,563) | 5% | — | 443 hands |
| Deal-in loss | 842 | 672 (575 to 768) | 16% | — | 443 hands |
| Net efficiency | 404 | 757 (558 to 955) | 18% | — | 443 hands |
| Push rate vs riichi (1-shanten) | 30.4% | 38.0% (31.8% to 44.1%) | 28% | — | 69 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 29.7% | 27.6% (22.1% to 33.1%) | 50% | — | 91 hands facing riichi |
| Tenpai rate after the first call | 30.6% | 28.3% (21.9% to 34.6%) | 54% | — | 72 first calls |
| Average win turn | 12.23 | 12.38 (12.23 to 12.52) | 2% | — | 77 wins |
| Tenpai rate at exhaustive draws | 31.2% | 37.0% (31.5% to 42.5%) | 34% | — | 93 exhaustive draws |
| Staying in vs riichi | 11.0% | 13.8% (12.0% to 15.6%) | 10% | — | 218 hands facing an opponent’s riichi |
| Tile efficiency match rate | 71.4% | 71.6% (70.2% to 73.0%) | 88% | — | 2,433 discards |
| Average ukeire loss (tiles) | 1.10 | 1.09 (1.01 to 1.18) | 80% | — | 2,324 discards |
| Breaking shape for value | 2.2% | 2.1% (1.7% to 2.5%) | 72% | — | 2,433 discards |
| Tenpai turn (luck-adjusted) | 8.28 | 8.17 (8.05 to 8.30) | 6% | — | 99 tenpai hands |
| Immediate riichi rate | 59.2% | 65.8% (60.5% to 71.1%) | 47% | — | 99 tenpai hands |
| Dama rate | 27.3% | 21.1% (16.2% to 25.9%) | 55% | — | 77 wins |
| Riichi income | 1,775 | 2,467 (1,734 to 3,200) | 18% | — | 84 riichi |
| Riichi win rate | 45.2% | 45.8% (39.9% to 51.6%) | 32% | — | 84 riichi |
| Riichi deal-in rate A | 19.0% | 14.5% (12.6% to 16.3%) | 3% | — | 84 riichi |
| Riichi deal-in rate B | 13.1% | 11.2% (8.7% to 13.7%) | 8% | — | 84 riichi |
| Riichi good-wait rate | 60.7% | 52.1% (46.8% to 57.5%) | 22% | — | 84 riichi |
| Riichi exhaustive draw rate | 13.1% | 17.7% (13.3% to 22.1%) | 26% | — | 84 riichi |
| Call income | -12.50 | 433 (-4.73 to 870) | 11% | — | 72 calls |
| Win rate after calling | 25.0% | 28.8% (23.4% to 34.1%) | 22% | — | 72 calls |
| Deal-in rate after calling | 15.3% | 12.3% (8.6% to 16.1%) | 22% | — | 72 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | +0.04 | — | 443 hands |
| Dora and red fives dealt | -0.01 | — | 443 hands |
| Draw luck | +0.3% | — | 5,475 tile draws |
| Ura-dora luck | -0.06 | — | 38 riichi wins |
| Ippatsu rate | +1.3% | — | 38 riichi wins |
| Avoiding a chase riichi (/first riichi) | -1.1% | — | 68 first riichi |
| Mangan+ tsumo against dealer rate | 16.1% | — | 124 tsumo against |
| Points from luck (/game) | +0.0 | — | 38 games |
By seasonRegular Season
2020-21 (19 games · skill estimate -1.8pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 31 | +630.6 | +33.2 |
| Deal-ins | 25 | -420.1 | -22.1 |
| Others' tsumo | 64 | -508.4 | -26.8 |
| Ron between others | 49 | -28.1 | -1.5 |
| Exhaustive draws | 48 | +33.8 | +1.8 |
Luck
Every number for 2020-21
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.89 | 2.54 (2.33 to 2.75) | 12% | 4 | 19 games |
| Points per game | -14.8 | -1.8 (-10.4 to 6.8) | 12% | 8 | 19 games |
| Points per game, luck removed | -12.3 | -2.0 (-10.0 to 6.0) | 16% | 11 | 19 games |
| 1st-place rate | 21.1% | 24.5% (16.2% to 32.9%) | 13% | 40 | 19 games |
| 4th-place rate | 42.1% | 27.2% (18.7% to 35.8%) | 14% | 4 | 19 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 14.3% | 18.8% (16.1% to 21.4%) | 21% | 4 | 217 hands |
| Deal-in rate | 11.5% | 11.0% (9.0% to 13.0%) | 19% | 32 | 217 hands |
| Riichi rate | 17.1% | 21.5% (18.6% to 24.3%) | 23% | 1 | 217 hands |
| Call rate | 18.9% | 19.8% (15.7% to 24.0%) | 77% | 45 | 217 hands |
| First riichi rate | 78.4% | 76.2% (71.3% to 81.1%) | 8% | 45 | 37 riichi |
| Average riichi turn | 9.57 | 9.38 (8.88 to 9.87) | 18% | 39 | 37 riichi |
| Average win value | 7,610 | 6,704 (6,051 to 7,356) | 11% | 83 | 31 wins |
| Average deal-in value | 6,912 | 5,727 (5,166 to 6,287) | 8% | 15 | 25 deal-ins |
| Win efficiency | 1,177 | 1,467 (1,360 to 1,573) | 2% | 21 | 217 hands |
| Deal-in loss | 813 | 654 (542 to 766) | 9% | 25 | 217 hands |
| Net efficiency | 364 | 789 (556 to 1,021) | 10% | 15 | 217 hands |
| Push rate vs riichi (1-shanten) | 18.8% | 37.5% (29.8% to 45.2%) | 15% | 1 | 32 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 36.0% | 29.3% (22.5% to 36.0%) | 36% | 97 | 50 hands facing riichi |
| Tenpai rate after the first call | 26.8% | 26.1% (18.5% to 33.8%) | 40% | 39 | 41 first calls |
| Average win turn | 11.69 | 12.37 (12.22 to 12.53) | 1% | 86 | 31 wins |
| Tenpai rate at exhaustive draws | 37.5% | 39.5% (32.6% to 46.4%) | 21% | 39 | 48 exhaustive draws |
| Staying in vs riichi | 11.6% | 13.9% (12.0% to 15.9%) | 5% | 25 | 112 hands facing an opponent’s riichi |
| Tile efficiency match rate | 72.0% | 72.2% (70.3% to 74.1%) | 78% | 52 | 1,175 discards |
| Average ukeire loss (tiles) | 1.05 | 1.05 (0.94 to 1.17) | 65% | 25 | 1,124 discards |
| Breaking shape for value | 2.1% | 2.1% (1.6% to 2.6%) | 55% | 59 | 1,175 discards |
| Tenpai turn (luck-adjusted) | 8.47 | 8.18 (8.04 to 8.31) | 2% | 59 | 41 tenpai hands |
| Immediate riichi rate | 60.3% | 68.6% (61.3% to 75.8%) | 27% | 15 | 41 tenpai hands |
| Dama rate | 25.8% | 17.5% (10.9% to 24.1%) | 33% | 80 | 31 wins |
| Riichi income | 562 | 2,436 (1,563 to 3,310) | 9% | 4 | 37 riichi |
| Riichi win rate | 35.1% | 44.1% (36.5% to 51.7%) | 17% | 21 | 37 riichi |
| Riichi deal-in rate A | 24.3% | 14.5% (12.5% to 16.4%) | 1% | 4 | 37 riichi |
| Riichi deal-in rate B | 16.2% | 11.2% (8.5% to 14.0%) | 4% | 25 | 37 riichi |
| Riichi good-wait rate | 64.9% | 51.4% (44.8% to 58.0%) | 11% | 90 | 37 riichi |
| Riichi exhaustive draw rate | 13.5% | 18.5% (13.0% to 24.0%) | 13% | 21 | 37 riichi |
| Call income | 180 | 467 (-11.03 to 945) | 6% | 35 | 41 calls |
| Win rate after calling | 24.4% | 29.1% (22.9% to 35.2%) | 14% | 32 | 41 calls |
| Deal-in rate after calling | 12.2% | 11.6% (7.3% to 15.9%) | 14% | 49 | 41 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.04 | 18 | 217 hands |
| Dora and red fives dealt | -0.04 | 18 | 217 hands |
| Draw luck | -0.3% | 49 | 2,738 tile draws |
| Ura-dora luck | +0.08 | 73 | 13 riichi wins |
| Ippatsu rate | +3.3% | 73 | 13 riichi wins |
| Avoiding a chase riichi (/first riichi) | +4.7% | 69 | 29 first riichi |
| Mangan+ tsumo against dealer rate | 18.8% | 4 | 64 tsumo against |
| Points from luck (/game) | -2.5 | 32 | 19 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 6.0% | +621 | +919 | -298 |
| Wins with calls | 4.6% | +276 | +382 | -107 |
| Dama wins | 3.7% | +281 | +173 | +108 |
| Deal-ins to riichi | 5.1% | -553 | -360 | -193 |
| Deal-ins to open hands | 3.7% | -143 | -203 | +60 |
| Deal-ins to dama | 2.8% | -144 | -101 | -43 |
| Others' tsumo | 29.5% | -845 | -752 | -93 |
| Other (exhaustive draws, etc.) | 44.7% | -35 | -60 | +25 |
| Total (per hand) | -543 |
2019-20 (15 games · skill estimate -0.9pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 33 | +562.5 | +37.5 |
| Deal-ins | 26 | -369.5 | -24.6 |
| Others' tsumo | 50 | -297.4 | -19.8 |
| Ron between others | 35 | -18.6 | -1.2 |
| Exhaustive draws | 33 | -5.3 | -0.4 |
Luck
Every number for 2019-20
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.60 | 2.51 (2.29 to 2.72) | 9% | 47 | 15 games |
| Points per game | -8.7 | -0.9 (-9.8 to 8.1) | 10% | 36 | 15 games |
| Points per game, luck removed | -5.1 | -0.7 (-9.1 to 7.7) | 13% | 40 | 15 games |
| 1st-place rate | 26.7% | 25.2% (16.4% to 34.0%) | 10% | 50 | 15 games |
| 4th-place rate | 40.0% | 26.6% (17.6% to 35.5%) | 11% | 8 | 15 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 18.6% | 19.7% (16.9% to 22.6%) | 18% | 50 | 177 hands |
| Deal-in rate | 14.7% | 11.5% (9.4% to 13.6%) | 16% | 5 | 177 hands |
| Riichi rate | 21.5% | 22.5% (19.5% to 25.5%) | 19% | 58 | 177 hands |
| Call rate | 14.7% | 16.9% (12.5% to 21.4%) | 73% | 26 | 177 hands |
| First riichi rate | 81.6% | 76.4% (71.6% to 81.3%) | 8% | 43 | 38 riichi |
| Average riichi turn | 8.74 | 9.23 (8.73 to 9.72) | 18% | 89 | 38 riichi |
| Average win value | 5,861 | 6,504 (5,860 to 7,149) | 12% | 19 | 33 wins |
| Average deal-in value | 6,412 | 5,690 (5,132 to 6,247) | 8% | 26 | 26 deal-ins |
| Win efficiency | 1,227 | 1,469 (1,361 to 1,577) | 2% | 22 | 177 hands |
| Deal-in loss | 971 | 663 (547 to 778) | 7% | 5 | 177 hands |
| Net efficiency | 256 | 788 (547 to 1,028) | 8% | 1 | 177 hands |
| Push rate vs riichi (1-shanten) | 44.8% | 41.4% (33.5% to 49.3%) | 14% | 65 | 29 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 23.5% | 25.0% (17.2% to 32.8%) | 27% | 54 | 34 hands facing riichi |
| Tenpai rate after the first call | 38.5% | 29.4% (20.4% to 38.5%) | 30% | 58 | 26 first calls |
| Average win turn | 12.53 | 12.38 (12.23 to 12.53) | 1% | 43 | 33 wins |
| Tenpai rate at exhaustive draws | 24.2% | 37.6% (29.9% to 45.2%) | 16% | 8 | 33 exhaustive draws |
| Staying in vs riichi | 8.2% | 13.8% (11.8% to 15.9%) | 4% | 12 | 85 hands facing an opponent’s riichi |
| Tile efficiency match rate | 72.5% | 72.6% (70.5% to 74.6%) | 74% | 72 | 944 discards |
| Average ukeire loss (tiles) | 1.13 | 1.10 (0.98 to 1.22) | 60% | 58 | 909 discards |
| Breaking shape for value | 2.0% | 2.0% (1.5% to 2.6%) | 50% | 50 | 944 discards |
| Tenpai turn (luck-adjusted) | 8.11 | 8.17 (8.03 to 8.30) | 3% | 50 | 43 tenpai hands |
| Immediate riichi rate | 63.1% | 69.3% (62.1% to 76.4%) | 28% | 19 | 43 tenpai hands |
| Dama rate | 18.2% | 15.0% (8.6% to 21.5%) | 35% | 61 | 33 wins |
| Riichi income | 2,689 | 2,629 (1,759 to 3,499) | 9% | 58 | 38 riichi |
| Riichi win rate | 52.6% | 47.2% (39.6% to 54.7%) | 18% | 68 | 38 riichi |
| Riichi deal-in rate A | 13.2% | 14.3% (12.3% to 16.3%) | 1% | 50 | 38 riichi |
| Riichi deal-in rate B | 10.5% | 11.0% (8.3% to 13.8%) | 4% | 58 | 38 riichi |
| Riichi good-wait rate | 52.6% | 50.1% (43.5% to 56.6%) | 11% | 54 | 38 riichi |
| Riichi exhaustive draw rate | 15.8% | 18.8% (13.3% to 24.3%) | 14% | 33 | 38 riichi |
| Call income | -215 | 457 (-46.33 to 961) | 4% | 29 | 26 calls |
| Win rate after calling | 26.9% | 29.5% (22.8% to 36.3%) | 9% | 40 | 26 calls |
| Deal-in rate after calling | 23.1% | 12.6% (7.9% to 17.3%) | 9% | 8 | 26 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | +0.09 | 100 | 177 hands |
| Dora and red fives dealt | +0.04 | 75 | 177 hands |
| Draw luck | +0.4% | 82 | 2,109 tile draws |
| Ura-dora luck | -0.13 | 8 | 20 riichi wins |
| Ippatsu rate | +0.3% | 43 | 20 riichi wins |
| Avoiding a chase riichi (/first riichi) | -3.7% | 15 | 31 first riichi |
| Mangan+ tsumo against dealer rate | 14.0% | 40 | 50 tsumo against |
| Points from luck (/game) | -3.5 | 36 | 15 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 11.3% | +896 | +919 | -23 |
| Wins with calls | 4.0% | +219 | +382 | -164 |
| Dama wins | 3.4% | +112 | +173 | -61 |
| Deal-ins to riichi | 5.1% | -424 | -360 | -64 |
| Deal-ins to open hands | 6.8% | -389 | -203 | -186 |
| Deal-ins to dama | 2.8% | -180 | -101 | -79 |
| Others' tsumo | 28.2% | -722 | -752 | +30 |
| Other (exhaustive draws, etc.) | 38.4% | -105 | -60 | -45 |
| Total (per hand) | -593 |
Players with a similar styleclosest career style metrics first
Not shown: fewer than 40 career games.