Player · 53 career games · 2023-24–2024-25
Masatoshi Sarukawa
In style, stands out for speed-first hands that maximise ukeire. Career record: -7.1pt per game, but allowing for luck the difference from average is not clear yet.
Actual / game
-7.1
53 career games
Skill estimate / game
-2.0
90% interval -8.4 to +4.5
Estimate, luck removed
-1.3
adjusted for starting hands, draws, ura-dora
Weight of the record
28%
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.
Placements53 career games, average placement 2.66
- 1st22.6%12×
- 2nd17.0%9×
- 3rd32.1%17×
- 4th28.3%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 | 125 | +2420.5 | +45.7 |
| Deal-ins | 87 | -1325.7 | -25.0 |
| Others' tsumo | 168 | -1367.2 | -25.8 |
| Ron between others | 154 | -118.1 | -2.2 |
| Exhaustive draws | 110 | +38.7 | +0.7 |
Hand balance breakdownpoints won or lost per hand, all stages
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 9.3% | +724 | +919 | -195 |
| Wins with calls | 7.8% | +466 | +382 | +84 |
| Dama wins | 2.3% | +180 | +173 | +7 |
| Deal-ins to riichi | 6.7% | -447 | -360 | -87 |
| Deal-ins to open hands | 5.0% | -292 | -203 | -89 |
| Deal-ins to dama | 1.9% | -104 | -101 | -3 |
| Others' tsumo | 26.1% | -764 | -752 | -11 |
| Other (exhaustive draws, etc.) | 41.0% | -35 | -60 | +25 |
| Total (per hand) | -271 |
Every career number (estimate, 90% interval, weight of the record)
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.66 | 2.54 (2.38 to 2.70) | 27% | 15 | 53 games |
| Points per game | -7.1 | -2.0 (-8.4 to 4.5) | 28% | 9 | 53 games |
| Points per game, luck removed | -3.7 | -1.3 (-7.0 to 4.4) | 35% | 27 | 53 games |
| 1st-place rate | 22.6% | 24.4% (18.1% to 30.6%) | 29% | 33 | 53 games |
| 4th-place rate | 28.3% | 25.9% (19.6% to 32.2%) | 31% | 23 | 53 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 19.4% | 19.7% (17.9% to 21.6%) | 45% | 41 | 644 hands |
| Deal-in rate | 13.5% | 12.0% (10.6% to 13.4%) | 41% | 7 | 644 hands |
| Riichi rate | 21.9% | 22.3% (20.4% to 24.3%) | 47% | 35 | 644 hands |
| Call rate | 26.4% | 26.1% (23.5% to 28.7%) | 91% | 74 | 644 hands |
| First riichi rate | 75.9% | 76.0% (72.4% to 79.6%) | 24% | 45 | 141 riichi |
| Average riichi turn | 9.37 | 9.35 (9.03 to 9.67) | 45% | 43 | 141 riichi |
| Average win value | 6,384 | 6,521 (6,083 to 6,959) | 34% | 33 | 125 wins |
| Average deal-in value | 5,838 | 5,674 (5,250 to 6,098) | 23% | 25 | 87 deal-ins |
| Win efficiency | 1,370 | 1,467 (1,371 to 1,562) | 7% | 35 | 644 hands |
| Deal-in loss | 815 | 677 (590 to 765) | 22% | 7 | 644 hands |
| Net efficiency | 555 | 767 (589 to 945) | 24% | 9 | 644 hands |
| Push rate vs riichi (1-shanten) | 43.1% | 41.7% (36.3% to 47.0%) | 36% | 64 | 102 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 31.0% | 28.8% (23.8% to 33.7%) | 59% | 78 | 129 hands facing riichi |
| Tenpai rate after the first call | 22.9% | 23.7% (18.9% to 28.4%) | 73% | 29 | 170 first calls |
| Average win turn | 12.70 | 12.39 (12.25 to 12.53) | 3% | 27 | 125 wins |
| Tenpai rate at exhaustive draws | 41.8% | 40.7% (35.5% to 45.9%) | 38% | 60 | 110 exhaustive draws |
| Staying in vs riichi | 12.0% | 13.8% (12.1% to 15.4%) | 14% | 25 | 342 hands facing an opponent’s riichi |
| Tile efficiency match rate | 75.7% | 75.4% (74.2% to 76.6%) | 91% | 92 | 3,480 discards |
| Average ukeire loss (tiles) | 0.94 | 0.95 (0.88 to 1.03) | 85% | 13 | 3,386 discards |
| Breaking shape for value | 2.6% | 2.4% (2.1% to 2.8%) | 78% | 90 | 3,480 discards |
| Tenpai turn (luck-adjusted) | 8.10 | 8.16 (8.04 to 8.28) | 7% | 49 | 127 tenpai hands |
| Immediate riichi rate | 67.4% | 69.4% (64.5% to 74.3%) | 53% | 27 | 127 tenpai hands |
| Dama rate | 12.0% | 12.4% (8.3% to 16.6%) | 67% | 43 | 125 wins |
| Riichi income | 1,348 | 2,272 (1,648 to 2,896) | 28% | 7 | 141 riichi |
| Riichi win rate | 42.6% | 44.5% (39.6% to 49.3%) | 45% | 27 | 141 riichi |
| Riichi deal-in rate A | 16.3% | 14.4% (12.7% to 16.2%) | 5% | 35 | 141 riichi |
| Riichi deal-in rate B | 12.8% | 11.3% (9.0% to 13.5%) | 13% | 25 | 141 riichi |
| Riichi good-wait rate | 45.4% | 48.3% (43.8% to 52.9%) | 32% | 23 | 141 riichi |
| Riichi exhaustive draw rate | 18.4% | 19.0% (15.3% to 22.6%) | 37% | 39 | 141 riichi |
| Call income | 464 | 481 (127 to 836) | 22% | 47 | 170 calls |
| Win rate after calling | 29.4% | 29.6% (25.7% to 33.6%) | 40% | 49 | 170 calls |
| Deal-in rate after calling | 14.1% | 12.6% (9.8% to 15.3%) | 40% | 15 | 170 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | +0.01 | 60 | 644 hands |
| Dora and red fives dealt | -0.02 | 13 | 644 hands |
| Draw luck | -1.0% | 1 | 7,765 tile draws |
| Ura-dora luck | +0.05 | 74 | 60 riichi wins |
| Ippatsu rate | -6.4% | 1 | 60 riichi wins |
| Avoiding a chase riichi (/first riichi) | +5.7% | 100 | 107 first riichi |
| Mangan+ tsumo against dealer rate | 14.3% | 9 | 168 tsumo against |
| Points from luck (/game) | -3.4 | 11 | 53 games |
By seasonRegular Season
2024-25 (24 games · skill estimate -2.5pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 51 | +899.5 | +37.5 |
| Deal-ins | 41 | -614.3 | -25.6 |
| Others' tsumo | 73 | -587.5 | -24.5 |
| Ron between others | 71 | -94.7 | -3.9 |
| Exhaustive draws | 44 | +6.4 | +0.3 |
Luck
Every number for 2024-25
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.92 | 2.56 (2.36 to 2.76) | 14% | 7 | 24 games |
| Points per game | -16.8 | -2.5 (-10.7 to 5.6) | 15% | 9 | 24 games |
| Points per game, luck removed | -13.9 | -2.7 (-10.2 to 4.8) | 20% | 9 | 24 games |
| 1st-place rate | 12.5% | 23.1% (15.1% to 31.0%) | 16% | 14 | 24 games |
| 4th-place rate | 33.3% | 26.3% (18.2% to 34.4%) | 17% | 26 | 24 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 18.2% | 19.5% (17.1% to 22.0%) | 26% | 18 | 280 hands |
| Deal-in rate | 14.6% | 11.8% (9.9% to 13.6%) | 23% | 7 | 280 hands |
| Riichi rate | 23.9% | 23.1% (20.5% to 25.7%) | 28% | 66 | 280 hands |
| Call rate | 23.9% | 23.7% (20.0% to 27.5%) | 81% | 41 | 280 hands |
| First riichi rate | 76.1% | 76.0% (71.6% to 80.4%) | 13% | 63 | 67 riichi |
| Average riichi turn | 9.94 | 9.51 (9.09 to 9.92) | 28% | 4 | 67 riichi |
| Average win value | 5,810 | 6,457 (5,873 to 7,041) | 17% | 18 | 51 wins |
| Average deal-in value | 5,288 | 5,584 (5,070 to 6,098) | 12% | 55 | 41 deal-ins |
| Win efficiency | 1,178 | 1,465 (1,360 to 1,569) | 3% | 12 | 280 hands |
| Deal-in loss | 805 | 657 (550 to 764) | 11% | 18 | 280 hands |
| Net efficiency | 372 | 778 (557 to 1,000) | 12% | 12 | 280 hands |
| Push rate vs riichi (1-shanten) | 47.6% | 42.1% (34.9% to 49.3%) | 19% | 63 | 42 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 38.1% | 30.7% (24.5% to 36.9%) | 41% | 100 | 63 hands facing riichi |
| Tenpai rate after the first call | 22.4% | 23.9% (17.4% to 30.5%) | 52% | 41 | 67 first calls |
| Average win turn | 13.38 | 12.39 (12.24 to 12.54) | 1% | 1 | 51 wins |
| Tenpai rate at exhaustive draws | 36.4% | 39.3% (32.2% to 46.4%) | 20% | 24 | 44 exhaustive draws |
| Staying in vs riichi | 10.9% | 13.9% (11.9% to 15.8%) | 7% | 15 | 147 hands facing an opponent’s riichi |
| Tile efficiency match rate | 74.5% | 74.2% (72.5% to 75.9%) | 82% | 49 | 1,501 discards |
| Average ukeire loss (tiles) | 0.96 | 0.99 (0.89 to 1.09) | 71% | 38 | 1,457 discards |
| Breaking shape for value | 2.1% | 2.1% (1.6% to 2.6%) | 61% | 55 | 1,501 discards |
| Tenpai turn (luck-adjusted) | 8.49 | 8.18 (8.05 to 8.31) | 3% | 97 | 58 tenpai hands |
| Immediate riichi rate | 79.1% | 74.2% (67.8% to 80.6%) | 34% | 89 | 58 tenpai hands |
| Dama rate | 3.9% | 9.1% (3.5% to 14.6%) | 45% | 15 | 51 wins |
| Riichi income | 457 | 2,292 (1,516 to 3,068) | 15% | 4 | 67 riichi |
| Riichi win rate | 37.3% | 43.6% (37.3% to 49.9%) | 28% | 9 | 67 riichi |
| Riichi deal-in rate A | 22.4% | 14.5% (12.6% to 16.4%) | 3% | 9 | 67 riichi |
| Riichi deal-in rate B | 20.9% | 11.7% (9.1% to 14.3%) | 7% | 1 | 67 riichi |
| Riichi good-wait rate | 43.3% | 48.6% (42.8% to 54.3%) | 18% | 12 | 67 riichi |
| Riichi exhaustive draw rate | 17.9% | 19.0% (14.2% to 23.7%) | 22% | 52 | 67 riichi |
| Call income | 648 | 503 (59.71 to 946) | 10% | 63 | 67 calls |
| Win rate after calling | 35.8% | 31.1% (25.6% to 36.5%) | 21% | 83 | 67 calls |
| Deal-in rate after calling | 16.4% | 12.5% (8.7% to 16.3%) | 21% | 18 | 67 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | -0.02 | 49 | 280 hands |
| Dora and red fives dealt | -0.02 | 46 | 280 hands |
| Draw luck | -0.4% | 35 | 3,313 tile draws |
| Ura-dora luck | -0.08 | 29 | 25 riichi wins |
| Ippatsu rate | -7.7% | 9 | 25 riichi wins |
| Avoiding a chase riichi (/first riichi) | +3.8% | 86 | 51 first riichi |
| Mangan+ tsumo against dealer rate | 12.3% | 41 | 73 tsumo against |
| Points from luck (/game) | -2.8 | 29 | 24 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 8.9% | +670 | +919 | -249 |
| Wins with calls | 8.6% | +489 | +382 | +107 |
| Dama wins | 0.7% | +19 | +173 | -154 |
| Deal-ins to riichi | 6.4% | -423 | -360 | -63 |
| Deal-ins to open hands | 6.4% | -345 | -203 | -142 |
| Deal-ins to dama | 1.8% | -87 | -101 | +13 |
| Others' tsumo | 26.1% | -758 | -752 | -6 |
| Other (exhaustive draws, etc.) | 41.1% | -57 | -60 | +3 |
| Total (per hand) | -493 |
2023-24 (29 games · skill estimate 0.2pt/game)
Style
Where the points came from
As a table
| Hand result | Hands | Total | Per game |
|---|---|---|---|
| Own wins | 74 | +1521.1 | +52.5 |
| Deal-ins | 46 | -711.4 | -24.5 |
| Others' tsumo | 95 | -779.8 | -26.9 |
| Ron between others | 83 | -23.4 | -0.8 |
| Exhaustive draws | 66 | +32.3 | +1.1 |
Luck
Every number for 2023-24
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Average placement | 2.45 | 2.49 (2.30 to 2.68) | 17% | 63 | 29 games |
| Points per game | 1.0 | 0.2 (-7.6 to 7.9) | 18% | 63 | 29 games |
| Points per game, luck removed | 4.8 | 1.1 (-6.0 to 8.2) | 23% | 69 | 29 games |
| 1st-place rate | 31.0% | 26.2% (18.6% to 33.7%) | 18% | 77 | 29 games |
| 4th-place rate | 24.1% | 24.8% (17.1% to 32.4%) | 19% | 53 | 29 games |
| Metric | Actual | Estimate (90% interval) | Weight of the record | Percentile | Count |
|---|---|---|---|---|---|
| Win rate | 20.3% | 20.1% (17.9% to 22.3%) | 31% | 55 | 364 hands |
| Deal-in rate | 12.6% | 11.4% (9.7% to 13.1%) | 28% | 29 | 364 hands |
| Riichi rate | 20.3% | 21.9% (19.6% to 24.3%) | 33% | 12 | 364 hands |
| Call rate | 28.3% | 27.5% (24.1% to 30.8%) | 85% | 86 | 364 hands |
| First riichi rate | 75.7% | 76.0% (71.6% to 80.3%) | 14% | 49 | 74 riichi |
| Average riichi turn | 8.85 | 9.19 (8.79 to 9.59) | 30% | 89 | 74 riichi |
| Average win value | 6,780 | 6,634 (6,109 to 7,159) | 23% | 58 | 74 wins |
| Average deal-in value | 6,328 | 5,721 (5,219 to 6,222) | 14% | 9 | 46 deal-ins |
| Win efficiency | 1,518 | 1,476 (1,374 to 1,578) | 4% | 55 | 364 hands |
| Deal-in loss | 822 | 664 (562 to 765) | 14% | 12 | 364 hands |
| Net efficiency | 696 | 814 (605 to 1,023) | 15% | 24 | 364 hands |
| Push rate vs riichi (1-shanten) | 40.0% | 40.6% (34.2% to 47.1%) | 25% | 29 | 60 hands facing riichi |
| Push rate vs riichi (2+ shanten) | 24.2% | 25.0% (18.9% to 31.1%) | 42% | 26 | 66 hands facing riichi |
| Tenpai rate after the first call | 23.3% | 24.2% (18.5% to 29.8%) | 63% | 35 | 103 first calls |
| Average win turn | 12.23 | 12.38 (12.23 to 12.52) | 2% | 60 | 74 wins |
| Tenpai rate at exhaustive draws | 45.5% | 41.5% (35.3% to 47.7%) | 27% | 86 | 66 exhaustive draws |
| Staying in vs riichi | 12.8% | 14.0% (12.1% to 15.8%) | 9% | 38 | 195 hands facing an opponent’s riichi |
| Tile efficiency match rate | 76.6% | 76.0% (74.5% to 77.5%) | 85% | 92 | 1,979 discards |
| Average ukeire loss (tiles) | 0.91 | 0.95 (0.86 to 1.04) | 76% | 21 | 1,929 discards |
| Breaking shape for value | 2.9% | 2.6% (2.2% to 3.0%) | 67% | 100 | 1,979 discards |
| Tenpai turn (luck-adjusted) | 7.78 | 8.15 (8.02 to 8.28) | 4% | 4 | 69 tenpai hands |
| Immediate riichi rate | 57.6% | 66.3% (60.2% to 72.3%) | 38% | 1 | 69 tenpai hands |
| Dama rate | 17.6% | 15.6% (10.7% to 20.5%) | 55% | 89 | 74 wins |
| Riichi income | 2,155 | 2,545 (1,788 to 3,303) | 17% | 26 | 74 riichi |
| Riichi win rate | 47.3% | 46.4% (40.3% to 52.5%) | 30% | 59 | 74 riichi |
| Riichi deal-in rate A | 10.8% | 14.2% (12.3% to 16.1%) | 3% | 86 | 74 riichi |
| Riichi deal-in rate B | 5.4% | 10.6% (8.1% to 13.1%) | 8% | 97 | 74 riichi |
| Riichi good-wait rate | 47.3% | 49.3% (43.7% to 54.8%) | 20% | 38 | 74 riichi |
| Riichi exhaustive draw rate | 18.9% | 19.2% (14.6% to 23.8%) | 23% | 55 | 74 riichi |
| Call income | 344 | 465 (59.47 to 871) | 15% | 38 | 103 calls |
| Win rate after calling | 25.2% | 28.5% (23.8% to 33.2%) | 29% | 18 | 103 calls |
| Deal-in rate after calling | 12.6% | 11.8% (8.5% to 15.1%) | 29% | 38 | 103 calls |
| Metric | Actual | Percentile | Count |
|---|---|---|---|
| Starting hand (shanten) | +0.03 | 58 | 364 hands |
| Dora and red fives dealt | -0.03 | 35 | 364 hands |
| Draw luck | -1.4% | 4 | 4,452 tile draws |
| Ura-dora luck | +0.14 | 86 | 35 riichi wins |
| Ippatsu rate | -5.5% | 21 | 35 riichi wins |
| Avoiding a chase riichi (/first riichi) | +7.5% | 89 | 56 first riichi |
| Mangan+ tsumo against dealer rate | 15.8% | 12 | 95 tsumo against |
| Points from luck (/game) | -3.8 | 21 | 29 games |
| Category | Frequency | Balance per hand | League average | Difference |
|---|---|---|---|---|
| Wins with riichi | 9.6% | +766 | +919 | -153 |
| Wins with calls | 7.1% | +449 | +382 | +66 |
| Dama wins | 3.6% | +304 | +173 | +131 |
| Deal-ins to riichi | 6.9% | -465 | -360 | -105 |
| Deal-ins to open hands | 3.8% | -251 | -203 | -48 |
| Deal-ins to dama | 1.9% | -116 | -101 | -16 |
| Others' tsumo | 26.1% | -768 | -752 | -15 |
| Other (exhaustive draws, etc.) | 40.9% | -18 | -60 | +42 |
| Total (per hand) | -101 |
Players with a similar styleclosest career style metrics first
- Daisuke SuzukiBEAST XIn common: More deal-ins, Efficiency first
- Hiroe SugawaraFormer M.League playerIn common: Efficiency first
- Kotaro UchikawaEX FurinkazanIn common: Efficiency first
* 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.