Player · 249 career games · 2018-19–2026-27

Saki Kurosawa

Builds closed hands and fights with riichi. Stands out for frequent dama, chasing riichi and big wins. Career record: +1.6pt per game, but allowing for luck the difference from average is not clear yet.

Closed-hand oriented
High-value hands
Dama-heavy

Actual / game

+1.6

249 career games

Skill estimate / game

+1.0

90% interval -2.8 to +4.8

Estimate, luck removed

-1.4

adjusted for starting hands, draws, ura-dora

Weight of the record

65%

share of the estimate from the record

Styleleague percentile, career

Average win value7,010
Riichi rate23.5%
Deal-in rate11.4%
Win rate19.1%
First riichi rate72.6%
Average riichi turn9.60
Call rate10.3%
Tenpai rate at exhaustive draws36.3%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)45.7%
Push rate vs riichi (2+ shanten)29.6%
Tile efficiency match rate70.4%
Tenpai turn (luck-adjusted)8.25
Immediate riichi rate64.4%
Dama rate21.9%

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.

Placements249 career games, average placement 2.48

1st29.3%73×
2nd19.3%48×
3rd25.7%64×
4th25.7%64×

Riichi and callsbalance and outcome of hands with riichi or calls

Riichi income2,938
Riichi win rate47.8%
Riichi deal-in rate A14.3%
Riichi deal-in rate B10.6%
Riichi good-wait rate49.0%
Riichi exhaustive draw rate18.7%
Call income632
Win rate after calling30.7%
Deal-in rate after calling11.8%
Tenpai rate after the first call38.6%

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

Net efficiency841
Deal-in loss656
Average win turn12.42

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

Points per game1.0
Points per game, luck removed-1.4
Average placement2.49

Luckfurther right is luckier; values are differences from the league average (the dealer tsumo rate is the rate itself)

Points from luck (/game)+3.5
Draw luck+0.2%
Starting hand (shanten)+0.01
Dora and red fives dealt-0.01
Ura-dora luck+0.02
Ippatsu rate-0.1%
Avoiding a chase riichi (/first riichi)+4.8%
Mangan+ tsumo against dealer rate11.1%

Where the points came fromchange in expected points, all stages

Own wins+49.4
Deal-ins-21.3
Others' tsumo-23.1
Ron between others-2.3
Exhaustive draws-1.3

Change in expected points per game. Total +1.5pt/game (249 games).

As a table

Hand result	Hands	Total	Per game
Own wins	580	+12305.7	+49.4
Deal-ins	355	-5294.3	-21.3
Others' tsumo	814	-5744.8	-23.1
Ron between others	662	-563.3	-2.3
Exhaustive draws	664	-325.6	-1.3

Hand balance breakdownpoints won or lost per hand, all stages

Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.4%	+1,039	+919	+120
Wins with calls	3.2%	+189	+382	-193
Dama wins	4.3%	+285	+173	+113
Deal-ins to riichi	5.2%	-365	-360	-5
Deal-ins to open hands	4.8%	-241	-203	-38
Deal-ins to dama	1.6%	-87	-101	+14
Others' tsumo	26.5%	-709	-752	+44
Other (exhaustive draws, etc.)	43.1%	-96	-60	-37
Total (per hand)		+16

Every career number (estimate, 90% interval, weight of the record)

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.48	2.49 (2.39 to 2.58)	63%	64	249 games
Points per game	1.6	1.0 (-2.8 to 4.8)	65%	66	249 games
Points per game, luck removed	-1.9	-1.4 (-4.7 to 2.0)	72%	25	249 games
1st-place rate	29.3%	27.9% (24.2% to 31.6%)	66%	96	249 games
4th-place rate	25.7%	25.4% (21.7% to 29.2%)	67%	39	249 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	18.9%	19.1% (18.0% to 20.1%)	80%	17	3,075 hands
Deal-in rate	11.5%	11.4% (10.6% to 12.2%)	77%	23	3,075 hands
Riichi rate	23.6%	23.5% (22.4% to 24.6%)	81%	74	3,075 hands
Call rate	10.0%	10.3% (9.1% to 11.5%)	98%	1	3,075 hands
First riichi rate	70.4%	72.6% (70.5% to 74.6%)	62%	1	727 riichi
Average riichi turn	9.66	9.60 (9.42 to 9.78)	81%	5	727 riichi
Average win value	7,190	7,010 (6,751 to 7,270)	70%	98	580 wins
Average deal-in value	5,578	5,600 (5,338 to 5,861)	55%	60	355 deal-ins
Win efficiency	1,514	1,485 (1,418 to 1,551)	26%	76	3,075 hands
Deal-in loss	669	656 (605 to 707)	57%	21	3,075 hands
Net efficiency	845	841 (737 to 945)	61%	56	3,075 hands
Push rate vs riichi (1-shanten)	47.0%	45.7% (42.9% to 48.5%)	78%	98	661 hands facing riichi
Push rate vs riichi (2+ shanten)	30.1%	29.6% (27.0% to 32.2%)	88%	88	680 hands facing riichi
Tenpai rate after the first call	41.2%	38.6% (34.9% to 42.4%)	83%	100	308 first calls
Average win turn	12.71	12.42 (12.31 to 12.54)	12%	1	580 wins
Tenpai rate at exhaustive draws	35.2%	36.3% (33.5% to 39.0%)	79%	7	664 exhaustive draws
Staying in vs riichi	14.1%	14.1% (13.1% to 15.1%)	45%	60	1,636 hands facing an opponent’s riichi
Tile efficiency match rate	70.4%	70.4% (69.8% to 71.0%)	98%	9	16,955 discards
Average ukeire loss (tiles)	1.19	1.18 (1.15 to 1.22)	96%	96	16,271 discards
Breaking shape for value	2.7%	2.6% (2.5% to 2.8%)	95%	96	16,955 discards
Tenpai turn (luck-adjusted)	8.44	8.25 (8.17 to 8.33)	30%	100	719 tenpai hands
Immediate riichi rate	63.2%	64.4% (61.8% to 66.9%)	87%	1	719 tenpai hands
Dama rate	22.8%	21.9% (19.6% to 24.1%)	90%	100	580 wins
Riichi income	3,099	2,938 (2,582 to 3,294)	66%	98	727 riichi
Riichi win rate	48.3%	47.8% (45.1% to 50.6%)	81%	86	727 riichi
Riichi deal-in rate A	14.2%	14.3% (13.0% to 15.6%)	22%	54	727 riichi
Riichi deal-in rate B	10.0%	10.6% (9.3% to 11.9%)	44%	86	727 riichi
Riichi good-wait rate	48.7%	49.0% (46.4% to 51.6%)	71%	41	727 riichi
Riichi exhaustive draw rate	18.6%	18.7% (16.7% to 20.8%)	75%	35	727 riichi
Call income	914	632 (343 to 921)	34%	96	308 calls
Win rate after calling	31.5%	30.7% (27.5% to 34.0%)	55%	78	308 calls
Deal-in rate after calling	12.0%	11.8% (9.5% to 14.0%)	55%	37	308 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.01	64	3,075 hands
Dora and red fives dealt	-0.01	23	3,075 hands
Draw luck	+0.2%	78	38,705 tile draws
Ura-dora luck	+0.02	62	351 riichi wins
Ippatsu rate	-0.1%	52	351 riichi wins
Avoiding a chase riichi (/first riichi)	+4.8%	98	512 first riichi
Mangan+ tsumo against dealer rate	11.1%	82	814 tsumo against
Points from luck (/game)	+3.5	96	249 games

By seasonRegular Season

2026-27 (12 games · skill estimate -0.8pt/game)

Style

Average win value6,644
Riichi rate23.3%
Deal-in rate11.4%
Win rate19.2%
First riichi rate75.1%
Average riichi turn9.35
Call rate16.0%
Tenpai rate at exhaustive draws40.8%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)43.3%
Push rate vs riichi (2+ shanten)28.4%
Tile efficiency match rate75.8%
Tenpai turn (luck-adjusted)8.18
Immediate riichi rate71.8%
Dama rate14.6%

Where the points came from

Own wins+42.9
Deal-ins-24.4
Others' tsumo-24.0
Ron between others-3.9
Exhaustive draws+0.5

Change in expected points per game. Total -9.0pt/game (12 games).

As a table

Hand result	Hands	Total	Per game
Own wins	22	+514.3	+42.9
Deal-ins	21	-293.2	-24.4
Others' tsumo	36	-288.4	-24.0
Ron between others	33	-47.0	-3.9
Exhaustive draws	36	+6.1	+0.5

Luck

Points from luck (/game)+1.0
Draw luck+0.1%
Starting hand (shanten)+0.10
Dora and red fives dealt-0.02
Ura-dora luck+0.04
Ippatsu rate+1.7%
Avoiding a chase riichi (/first riichi)+13.4%
Mangan+ tsumo against dealer rate19.4%

Every number for 2026-27

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.75	2.52 (2.29 to 2.74)	8%	17	12 games
Points per game	-9.3	-0.8 (-10.1 to 8.5)	8%	25	12 games
Points per game, luck removed	-10.2	-1.1 (-9.9 to 7.7)	11%	17	12 games
1st-place rate	16.7%	24.3% (15.2% to 33.5%)	9%	38	12 games
4th-place rate	25.0%	24.9% (15.6% to 34.2%)	9%	50	12 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	14.9%	19.2% (16.2% to 22.1%)	16%	9	148 hands
Deal-in rate	14.2%	11.4% (9.2% to 13.6%)	14%	17	148 hands
Riichi rate	26.4%	23.3% (20.2% to 26.5%)	17%	81	148 hands
Call rate	12.8%	16.0% (11.2% to 20.7%)	69%	1	148 hands
First riichi rate	64.1%	75.1% (70.2% to 79.9%)	8%	4	39 riichi
Average riichi turn	9.41	9.35 (8.86 to 9.84)	19%	38	39 riichi
Average win value	7,255	6,644 (5,953 to 7,336)	8%	87	22 wins
Average deal-in value	4,510	5,551 (4,977 to 6,126)	7%	89	21 deal-ins
Win efficiency	1,186	1,469 (1,360 to 1,579)	2%	30	148 hands
Deal-in loss	682	641 (523 to 759)	6%	38	148 hands
Net efficiency	504	812 (566 to 1,059)	7%	25	148 hands
Push rate vs riichi (1-shanten)	58.6%	43.3% (35.4% to 51.2%)	14%	95	29 hands facing riichi
Push rate vs riichi (2+ shanten)	36.4%	28.4% (20.6% to 36.3%)	27%	87	33 hands facing riichi
Tenpai rate after the first call	36.8%	28.3% (18.2% to 38.3%)	24%	84	19 first calls
Average win turn	12.38	12.38 (12.22 to 12.53)	1%	41	22 wins
Tenpai rate at exhaustive draws	44.4%	40.8% (33.3% to 48.2%)	17%	76	36 exhaustive draws
Staying in vs riichi	15.6%	14.1% (12.1% to 16.2%)	4%	52	77 hands facing an opponent’s riichi
Tile efficiency match rate	77.0%	75.8% (73.7% to 77.9%)	72%	87	851 discards
Average ukeire loss (tiles)	0.92	0.98 (0.85 to 1.11)	58%	22	835 discards
Breaking shape for value	2.7%	2.3% (1.8% to 2.9%)	47%	84	851 discards
Tenpai turn (luck-adjusted)	8.64	8.18 (8.04 to 8.31)	2%	97	32 tenpai hands
Immediate riichi rate	72.2%	71.8% (63.9% to 79.6%)	22%	52	32 tenpai hands
Dama rate	18.2%	14.6% (7.2% to 22.1%)	26%	87	22 wins
Riichi income	1,182	2,486 (1,620 to 3,352)	10%	14	39 riichi
Riichi win rate	35.9%	44.2% (36.7% to 51.7%)	18%	20	39 riichi
Riichi deal-in rate A	25.6%	14.5% (12.5% to 16.4%)	1%	4	39 riichi
Riichi deal-in rate B	20.5%	11.4% (8.7% to 14.2%)	4%	4	39 riichi
Riichi good-wait rate	48.7%	49.6% (43.1% to 56.1%)	12%	44	39 riichi
Riichi exhaustive draw rate	20.5%	19.4% (14.0% to 24.9%)	14%	52	39 riichi
Call income	626	491 (-26.92 to 1,009)	3%	63	19 calls
Win rate after calling	21.1%	29.2% (22.1% to 36.3%)	7%	33	19 calls
Deal-in rate after calling	5.3%	11.1% (6.2% to 16.0%)	7%	63	19 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.10	97	148 hands
Dora and red fives dealt	-0.02	28	148 hands
Draw luck	+0.1%	60	1,883 tile draws
Ura-dora luck	+0.04	44	14 riichi wins
Ippatsu rate	+1.7%	60	14 riichi wins
Avoiding a chase riichi (/first riichi)	+13.4%	100	25 first riichi
Mangan+ tsumo against dealer rate	19.4%	9	36 tsumo against
Points from luck (/game)	+1.0	55	12 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.5%	+722	+919	-197
Wins with calls	2.7%	+181	+382	-201
Dama wins	2.7%	+283	+173	+110
Deal-ins to riichi	4.7%	-372	-360	-12
Deal-ins to open hands	8.1%	-316	-203	-113
Deal-ins to dama	1.4%	-48	-101	+53
Others' tsumo	24.3%	-626	-752	+127
Other (exhaustive draws, etc.)	46.6%	-34	-60	+26
Total (per hand)		-209

2025-26 (26 games · skill estimate 0.7pt/game)

Style

Average win value6,712
Riichi rate22.7%
Deal-in rate11.2%
Win rate20.0%
First riichi rate76.0%
Average riichi turn9.44
Call rate16.6%
Tenpai rate at exhaustive draws39.8%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)42.5%
Push rate vs riichi (2+ shanten)32.0%
Tile efficiency match rate72.3%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate66.4%
Dama rate15.5%

Where the points came from

Own wins+50.3
Deal-ins-21.1
Others' tsumo-23.7
Ron between others-1.7
Exhaustive draws+0.2

Change in expected points per game. Total +4.0pt/game (26 games).

As a table

Hand result	Hands	Total	Per game
Own wins	62	+1307.2	+50.3
Deal-ins	37	-548.2	-21.1
Others' tsumo	93	-616.1	-23.7
Ron between others	62	-44.3	-1.7
Exhaustive draws	54	+6.4	+0.2

Luck

Points from luck (/game)+3.1
Draw luck+0.3%
Starting hand (shanten)-0.00
Dora and red fives dealt-0.05
Ura-dora luck+0.00
Ippatsu rate+1.7%
Avoiding a chase riichi (/first riichi)+12.1%
Mangan+ tsumo against dealer rate8.6%

Every number for 2025-26

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.42	2.49 (2.29 to 2.68)	15%	62	26 games
Points per game	4.2	0.7 (-7.3 to 8.7)	16%	67	26 games
Points per game, luck removed	1.1	0.2 (-7.1 to 7.5)	21%	57	26 games
1st-place rate	34.6%	26.7% (18.9% to 34.5%)	17%	84	26 games
4th-place rate	26.9%	25.3% (17.4% to 33.2%)	18%	39	26 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	20.1%	20.0% (17.6% to 22.4%)	28%	39	308 hands
Deal-in rate	12.0%	11.2% (9.4% to 13.0%)	25%	44	308 hands
Riichi rate	22.7%	22.7% (20.2% to 25.3%)	29%	44	308 hands
Call rate	15.3%	16.6% (13.0% to 20.2%)	82%	4	308 hands
First riichi rate	75.7%	76.0% (71.6% to 80.3%)	13%	57	70 riichi
Average riichi turn	9.70	9.44 (9.04 to 9.85)	29%	16	70 riichi
Average win value	7,198	6,712 (6,158 to 7,266)	20%	87	62 wins
Average deal-in value	5,932	5,660 (5,135 to 6,185)	11%	31	37 deal-ins
Win efficiency	1,589	1,478 (1,374 to 1,582)	3%	70	308 hands
Deal-in loss	734	650 (545 to 755)	12%	34	308 hands
Net efficiency	855	838 (621 to 1,055)	13%	47	308 hands
Push rate vs riichi (1-shanten)	46.6%	42.5% (36.5% to 48.5%)	29%	75	73 hands facing riichi
Push rate vs riichi (2+ shanten)	41.7%	32.0% (25.6% to 38.3%)	40%	95	60 hands facing riichi
Tenpai rate after the first call	31.9%	28.4% (21.0% to 35.7%)	43%	85	47 first calls
Average win turn	12.50	12.38 (12.23 to 12.53)	1%	26	62 wins
Tenpai rate at exhaustive draws	38.9%	39.8% (33.1% to 46.4%)	23%	31	54 exhaustive draws
Staying in vs riichi	12.8%	14.0% (12.1% to 15.9%)	7%	29	164 hands facing an opponent’s riichi
Tile efficiency match rate	72.2%	72.3% (70.7% to 73.9%)	83%	16	1,681 discards
Average ukeire loss (tiles)	0.96	0.99 (0.89 to 1.09)	73%	42	1,621 discards
Breaking shape for value	1.8%	1.9% (1.5% to 2.4%)	64%	57	1,681 discards
Tenpai turn (luck-adjusted)	8.26	8.17 (8.04 to 8.30)	4%	87	72 tenpai hands
Immediate riichi rate	58.3%	66.4% (60.5% to 72.3%)	39%	1	72 tenpai hands
Dama rate	17.7%	15.5% (10.4% to 20.7%)	50%	92	62 wins
Riichi income	3,926	2,830 (2,061 to 3,598)	16%	87	70 riichi
Riichi win rate	60.0%	50.0% (43.8% to 56.2%)	29%	100	70 riichi
Riichi deal-in rate A	8.6%	14.2% (12.3% to 16.1%)	3%	87	70 riichi
Riichi deal-in rate B	7.1%	10.8% (8.2% to 13.3%)	7%	90	70 riichi
Riichi good-wait rate	51.4%	50.1% (44.4% to 55.7%)	19%	64	70 riichi
Riichi exhaustive draw rate	18.6%	19.1% (14.4% to 23.8%)	22%	72	70 riichi
Call income	6.38	451 (-17.49 to 920)	7%	42	47 calls
Win rate after calling	19.1%	28.2% (22.2% to 34.1%)	16%	11	47 calls
Deal-in rate after calling	17.0%	12.4% (8.2% to 16.5%)	15%	14	47 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.00	42	308 hands
Dora and red fives dealt	-0.05	16	308 hands
Draw luck	+0.3%	54	3,734 tile draws
Ura-dora luck	+0.00	39	42 riichi wins
Ippatsu rate	+1.7%	70	42 riichi wins
Avoiding a chase riichi (/first riichi)	+12.1%	99	53 first riichi
Mangan+ tsumo against dealer rate	8.6%	95	93 tsumo against
Points from luck (/game)	+3.1	72	26 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	13.6%	+1,139	+919	+220
Wins with calls	2.9%	+193	+382	-189
Dama wins	3.6%	+257	+173	+84
Deal-ins to riichi	5.8%	-388	-360	-28
Deal-ins to open hands	5.5%	-290	-203	-87
Deal-ins to dama	0.6%	-72	-101	+29
Others' tsumo	30.2%	-716	-752	+37
Other (exhaustive draws, etc.)	37.7%	-62	-60	-2
Total (per hand)		+61

2024-25 (20 games · skill estimate 0.6pt/game)

Style

Average win value6,642
Riichi rate22.1%
Deal-in rate11.0%
Win rate20.0%
First riichi rate75.7%
Average riichi turn9.17
Call rate13.0%
Tenpai rate at exhaustive draws37.6%
Staying in vs riichi13.8%
Push rate vs riichi (1-shanten)42.2%
Push rate vs riichi (2+ shanten)25.3%
Tile efficiency match rate72.4%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate70.1%
Dama rate14.9%

Where the points came from

Own wins+47.5
Deal-ins-17.7
Others' tsumo-22.8
Ron between others+0.1
Exhaustive draws-1.7

Change in expected points per game. Total +5.4pt/game (20 games).

As a table

Hand result	Hands	Total	Per game
Own wins	47	+950.6	+47.5
Deal-ins	27	-353.6	-17.7
Others' tsumo	69	-456.7	-22.8
Ron between others	54	+2.1	+0.1
Exhaustive draws	38	-33.5	-1.7

Luck

Points from luck (/game)+6.1
Draw luck+0.4%
Starting hand (shanten)+0.02
Dora and red fives dealt-0.09
Ura-dora luck-0.04
Ippatsu rate-16.0%
Avoiding a chase riichi (/first riichi)+4.8%
Mangan+ tsumo against dealer rate10.1%

Every number for 2024-25

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.40	2.49 (2.28 to 2.69)	12%	58	20 games
Points per game	5.0	0.6 (-7.8 to 9.1)	13%	63	20 games
Points per game, luck removed	-1.1	-0.2 (-8.0 to 7.7)	17%	55	20 games
1st-place rate	35.0%	26.4% (18.1% to 34.7%)	13%	77	20 games
4th-place rate	30.0%	25.6% (17.2% to 34.1%)	14%	41	20 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	20.0%	20.0% (17.4% to 22.6%)	23%	41	235 hands
Deal-in rate	11.5%	11.0% (9.1% to 13.0%)	20%	49	235 hands
Riichi rate	20.0%	22.1% (19.3% to 24.8%)	24%	15	235 hands
Call rate	10.2%	13.0% (9.0% to 17.0%)	78%	1	235 hands
First riichi rate	72.3%	75.7% (70.9% to 80.4%)	9%	35	47 riichi
Average riichi turn	8.57	9.17 (8.71 to 9.64)	22%	92	47 riichi
Average win value	6,917	6,642 (6,046 to 7,238)	16%	92	47 wins
Average deal-in value	4,896	5,564 (5,010 to 6,118)	8%	69	27 deal-ins
Win efficiency	1,527	1,476 (1,370 to 1,582)	3%	60	235 hands
Deal-in loss	584	634 (523 to 744)	9%	58	235 hands
Net efficiency	943	847 (617 to 1,076)	11%	63	235 hands
Push rate vs riichi (1-shanten)	46.6%	42.2% (35.7% to 48.7%)	24%	69	58 hands facing riichi
Push rate vs riichi (2+ shanten)	25.0%	25.3% (19.0% to 31.7%)	40%	41	60 hands facing riichi
Tenpai rate after the first call	37.5%	29.0% (19.7% to 38.3%)	28%	89	24 first calls
Average win turn	11.98	12.37 (12.23 to 12.52)	1%	72	47 wins
Tenpai rate at exhaustive draws	26.3%	37.6% (30.3% to 45.0%)	17%	1	38 exhaustive draws
Staying in vs riichi	9.7%	13.8% (11.9% to 15.7%)	6%	9	134 hands facing an opponent’s riichi
Tile efficiency match rate	72.2%	72.4% (70.5% to 74.2%)	79%	18	1,231 discards
Average ukeire loss (tiles)	1.23	1.17 (1.06 to 1.29)	67%	100	1,186 discards
Breaking shape for value	2.5%	2.3% (1.8% to 2.8%)	56%	77	1,231 discards
Tenpai turn (luck-adjusted)	7.77	8.16 (8.02 to 8.29)	3%	18	43 tenpai hands
Immediate riichi rate	66.1%	70.1% (63.0% to 77.2%)	28%	24	43 tenpai hands
Dama rate	17.0%	14.9% (9.2% to 20.6%)	43%	92	47 wins
Riichi income	3,709	2,745 (1,908 to 3,582)	11%	94	47 riichi
Riichi win rate	57.4%	48.4% (41.3% to 55.5%)	21%	92	47 riichi
Riichi deal-in rate A	10.6%	14.3% (12.3% to 16.2%)	2%	72	47 riichi
Riichi deal-in rate B	4.3%	10.7% (8.0% to 13.4%)	5%	89	47 riichi
Riichi good-wait rate	53.2%	50.2% (44.0% to 56.5%)	14%	69	47 riichi
Riichi exhaustive draw rate	8.5%	17.5% (12.3% to 22.7%)	16%	9	47 riichi
Call income	1,350	520 (12.59 to 1,027)	4%	72	24 calls
Win rate after calling	50.0%	31.5% (24.7% to 38.4%)	9%	94	24 calls
Deal-in rate after calling	12.5%	11.6% (6.8% to 16.4%)	9%	46	24 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.02	72	235 hands
Dora and red fives dealt	-0.09	4	235 hands
Draw luck	+0.4%	75	2,817 tile draws
Ura-dora luck	-0.04	35	27 riichi wins
Ippatsu rate	-16.0%	1	27 riichi wins
Avoiding a chase riichi (/first riichi)	+4.8%	89	34 first riichi
Mangan+ tsumo against dealer rate	10.1%	80	69 tsumo against
Points from luck (/game)	+6.1	100	20 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.5%	+1,009	+919	+90
Wins with calls	5.1%	+232	+382	-150
Dama wins	3.4%	+286	+173	+113
Deal-ins to riichi	5.1%	-280	-360	+80
Deal-ins to open hands	5.1%	-257	-203	-54
Deal-ins to dama	1.3%	-56	-101	+45
Others' tsumo	29.4%	-726	-752	+26
Other (exhaustive draws, etc.)	39.1%	-117	-60	-57
Total (per hand)		+91

2023-24 (22 games · skill estimate -1.4pt/game)

Style

Average win value6,738
Riichi rate22.6%
Deal-in rate11.4%
Win rate18.8%
First riichi rate74.8%
Average riichi turn9.60
Call rate12.0%
Tenpai rate at exhaustive draws41.6%
Staying in vs riichi14.2%
Push rate vs riichi (1-shanten)43.7%
Push rate vs riichi (2+ shanten)31.4%
Tile efficiency match rate71.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.1%
Dama rate19.3%

Where the points came from

Own wins+48.5
Deal-ins-26.1
Others' tsumo-27.8
Ron between others-4.1
Exhaustive draws-0.3

Change in expected points per game. Total -9.8pt/game (22 games).

As a table

Hand result	Hands	Total	Per game
Own wins	43	+1066.9	+48.5
Deal-ins	36	-574.5	-26.1
Others' tsumo	70	-611.2	-27.8
Ron between others	73	-91.0	-4.1
Exhaustive draws	56	-6.6	-0.3

Luck

Points from luck (/game)-0.5
Draw luck-0.0%
Starting hand (shanten)-0.00
Dora and red fives dealt+0.04
Ura-dora luck-0.04
Ippatsu rate+8.8%
Avoiding a chase riichi (/first riichi)-8.8%
Mangan+ tsumo against dealer rate15.7%

Every number for 2023-24

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.68	2.52 (2.32 to 2.72)	13%	22	22 games
Points per game	-9.8	-1.4 (-9.7 to 6.9)	14%	9	22 games
Points per game, luck removed	-9.3	-1.7 (-9.4 to 6.0)	18%	21	22 games
1st-place rate	13.6%	23.4% (15.3% to 31.5%)	15%	9	22 games
4th-place rate	27.3%	25.3% (17.0% to 33.5%)	15%	38	22 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	15.5%	18.8% (16.3% to 21.3%)	26%	1	278 hands
Deal-in rate	13.0%	11.4% (9.5% to 13.2%)	23%	35	278 hands
Riichi rate	22.3%	22.6% (20.0% to 25.2%)	27%	35	278 hands
Call rate	9.4%	12.0% (8.2% to 15.7%)	81%	1	278 hands
First riichi rate	66.1%	74.8% (70.3% to 79.3%)	12%	4	62 riichi
Average riichi turn	10.31	9.60 (9.17 to 10.02)	27%	1	62 riichi
Average win value	7,586	6,738 (6,129 to 7,346)	15%	86	43 wins
Average deal-in value	5,519	5,614 (5,087 to 6,142)	11%	63	36 deal-ins
Win efficiency	1,310	1,469 (1,364 to 1,574)	3%	9	278 hands
Deal-in loss	750	651 (544 to 758)	11%	29	278 hands
Net efficiency	560	801 (580 to 1,023)	12%	12	278 hands
Push rate vs riichi (1-shanten)	51.5%	43.7% (37.4% to 49.9%)	27%	97	66 hands facing riichi
Push rate vs riichi (2+ shanten)	39.4%	31.4% (25.3% to 37.5%)	42%	94	66 hands facing riichi
Tenpai rate after the first call	61.5%	36.3% (27.3% to 45.3%)	30%	100	26 first calls
Average win turn	12.71	12.38 (12.23 to 12.53)	1%	29	43 wins
Tenpai rate at exhaustive draws	46.4%	41.6% (35.0% to 48.1%)	24%	89	56 exhaustive draws
Staying in vs riichi	15.7%	14.2% (12.3% to 16.1%)	7%	83	153 hands facing an opponent’s riichi
Tile efficiency match rate	71.0%	71.4% (69.7% to 73.0%)	82%	18	1,553 discards
Average ukeire loss (tiles)	1.19	1.15 (1.05 to 1.26)	71%	89	1,477 discards
Breaking shape for value	2.2%	2.1% (1.7% to 2.6%)	62%	63	1,553 discards
Tenpai turn (luck-adjusted)	8.25	8.17 (8.04 to 8.30)	3%	69	51 tenpai hands
Immediate riichi rate	66.8%	70.1% (63.4% to 76.8%)	31%	32	51 tenpai hands
Dama rate	27.9%	19.3% (13.4% to 25.2%)	41%	100	43 wins
Riichi income	1,929	2,524 (1,734 to 3,314)	14%	18	62 riichi
Riichi win rate	33.9%	42.8% (36.3% to 49.3%)	26%	1	62 riichi
Riichi deal-in rate A	19.4%	14.4% (12.5% to 16.3%)	2%	15	62 riichi
Riichi deal-in rate B	11.3%	11.1% (8.5% to 13.6%)	6%	46	62 riichi
Riichi good-wait rate	53.2%	50.3% (44.5% to 56.2%)	17%	60	62 riichi
Riichi exhaustive draw rate	27.4%	20.9% (16.1% to 25.8%)	20%	94	62 riichi
Call income	1,642	535 (31.43 to 1,038)	4%	86	26 calls
Win rate after calling	38.5%	30.6% (23.9% to 37.3%)	9%	83	26 calls
Deal-in rate after calling	7.7%	11.2% (6.5% to 15.9%)	9%	66	26 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.00	29	278 hands
Dora and red fives dealt	+0.04	86	278 hands
Draw luck	-0.0%	63	3,407 tile draws
Ura-dora luck	-0.04	41	21 riichi wins
Ippatsu rate	+8.8%	97	21 riichi wins
Avoiding a chase riichi (/first riichi)	-8.8%	4	41 first riichi
Mangan+ tsumo against dealer rate	15.7%	15	70 tsumo against
Points from luck (/game)	-0.5	46	22 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	7.6%	+745	+919	-174
Wins with calls	3.6%	+198	+382	-184
Dama wins	4.3%	+367	+173	+194
Deal-ins to riichi	6.5%	-450	-360	-90
Deal-ins to open hands	5.0%	-249	-203	-46
Deal-ins to dama	1.4%	-76	-101	+25
Others' tsumo	25.2%	-772	-752	-19
Other (exhaustive draws, etc.)	46.4%	-68	-60	-9
Total (per hand)		-306

2022-23 (23 games · skill estimate -0.1pt/game)

Style

Average win value6,660
Riichi rate24.3%
Deal-in rate10.4%
Win rate19.9%
First riichi rate74.9%
Average riichi turn9.39
Call rate10.5%
Tenpai rate at exhaustive draws37.9%
Staying in vs riichi13.9%
Push rate vs riichi (1-shanten)41.5%
Push rate vs riichi (2+ shanten)22.5%
Tile efficiency match rate70.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate72.6%
Dama rate15.1%

Where the points came from

Own wins+46.8
Deal-ins-16.5
Others' tsumo-25.3
Ron between others-3.6
Exhaustive draws-2.0

Change in expected points per game. Total -0.6pt/game (23 games).

As a table

Hand result	Hands	Total	Per game
Own wins	59	+1076.3	+46.8
Deal-ins	26	-379.8	-16.5
Others' tsumo	81	-581.2	-25.3
Ron between others	70	-82.4	-3.6
Exhaustive draws	63	-47.0	-2.0

Luck

Points from luck (/game)+3.0
Draw luck+0.1%
Starting hand (shanten)+0.12
Dora and red fives dealt-0.03
Ura-dora luck+0.11
Ippatsu rate-0.2%
Avoiding a chase riichi (/first riichi)-2.2%
Mangan+ tsumo against dealer rate9.9%

Every number for 2022-23

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.61	2.51 (2.31 to 2.71)	14%	33	23 games
Points per game	-0.4	-0.1 (-8.3 to 8.2)	15%	52	23 games
Points per game, luck removed	-3.4	-0.7 (-8.2 to 6.9)	19%	30	23 games
1st-place rate	26.1%	25.2% (17.2% to 33.3%)	15%	65	23 games
4th-place rate	21.7%	24.4% (16.2% to 32.5%)	16%	66	23 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	19.7%	19.9% (17.5% to 22.3%)	27%	47	299 hands
Deal-in rate	8.7%	10.4% (8.6% to 12.2%)	24%	84	299 hands
Riichi rate	28.1%	24.3% (21.7% to 26.8%)	29%	97	299 hands
Call rate	7.7%	10.5% (6.8% to 14.1%)	82%	1	299 hands
First riichi rate	69.0%	74.9% (70.7% to 79.1%)	16%	4	84 riichi
Average riichi turn	9.50	9.39 (9.01 to 9.77)	33%	43	84 riichi
Average win value	6,951	6,660 (6,098 to 7,221)	19%	68	59 wins
Average deal-in value	6,073	5,662 (5,105 to 6,219)	8%	23	26 deal-ins
Win efficiency	1,560	1,477 (1,373 to 1,581)	3%	55	299 hands
Deal-in loss	549	628 (523 to 734)	12%	68	299 hands
Net efficiency	1,011	858 (640 to 1,077)	13%	65	299 hands
Push rate vs riichi (1-shanten)	43.5%	41.5% (35.1% to 47.9%)	25%	84	62 hands facing riichi
Push rate vs riichi (2+ shanten)	18.0%	22.5% (16.2% to 28.8%)	40%	7	61 hands facing riichi
Tenpai rate after the first call	39.1%	29.3% (19.9% to 38.7%)	27%	71	23 first calls
Average win turn	12.78	12.39 (12.24 to 12.53)	1%	17	59 wins
Tenpai rate at exhaustive draws	31.7%	37.9% (31.5% to 44.2%)	26%	14	63 exhaustive draws
Staying in vs riichi	11.8%	13.9% (12.0% to 15.8%)	7%	14	153 hands facing an opponent’s riichi
Tile efficiency match rate	70.0%	70.4% (68.8% to 72.1%)	83%	11	1,674 discards
Average ukeire loss (tiles)	1.15	1.12 (1.02 to 1.22)	73%	71	1,610 discards
Breaking shape for value	3.0%	2.7% (2.2% to 3.1%)	64%	97	1,674 discards
Tenpai turn (luck-adjusted)	8.23	8.17 (8.04 to 8.30)	4%	65	76 tenpai hands
Immediate riichi rate	74.0%	72.6% (66.8% to 78.4%)	41%	62	76 tenpai hands
Dama rate	16.9%	15.1% (9.8% to 20.4%)	49%	62	59 wins
Riichi income	3,169	2,724 (1,991 to 3,457)	18%	74	84 riichi
Riichi win rate	48.8%	46.9% (41.1% to 52.8%)	32%	68	84 riichi
Riichi deal-in rate A	14.3%	14.3% (12.5% to 16.2%)	3%	28	84 riichi
Riichi deal-in rate B	10.7%	11.0% (8.5% to 13.5%)	8%	33	84 riichi
Riichi good-wait rate	46.4%	49.0% (43.6% to 54.4%)	22%	30	84 riichi
Riichi exhaustive draw rate	16.7%	18.6% (14.2% to 23.0%)	26%	20	84 riichi
Call income	970	504 (-4.91 to 1,014)	4%	65	23 calls
Win rate after calling	34.8%	30.2% (23.4% to 37.1%)	8%	55	23 calls
Deal-in rate after calling	13.0%	11.6% (6.9% to 16.4%)	8%	36	23 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.12	100	299 hands
Dora and red fives dealt	-0.03	27	299 hands
Draw luck	+0.1%	55	3,805 tile draws
Ura-dora luck	+0.11	87	41 riichi wins
Ippatsu rate	-0.2%	55	41 riichi wins
Avoiding a chase riichi (/first riichi)	-2.2%	27	58 first riichi
Mangan+ tsumo against dealer rate	9.9%	68	81 tsumo against
Points from luck (/game)	+3.0	81	23 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	13.7%	+1,254	+919	+335
Wins with calls	2.7%	+183	+382	-199
Dama wins	3.3%	+123	+173	-50
Deal-ins to riichi	4.7%	-366	-360	-6
Deal-ins to open hands	3.0%	-156	-203	+48
Deal-ins to dama	1.0%	-58	-101	+43
Others' tsumo	27.1%	-745	-752	+7
Other (exhaustive draws, etc.)	44.5%	-125	-60	-66
Total (per hand)		+110

2021-22 (23 games · skill estimate -0.9pt/game)

Style

Average win value6,610
Riichi rate23.5%
Deal-in rate11.0%
Win rate19.4%
First riichi rate75.4%
Average riichi turn9.55
Call rate9.8%
Tenpai rate at exhaustive draws38.7%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)43.1%
Push rate vs riichi (2+ shanten)25.2%
Tile efficiency match rate68.0%
Tenpai turn (luck-adjusted)8.18
Immediate riichi rate68.0%
Dama rate15.2%

Where the points came from

Own wins+48.9
Deal-ins-23.0
Others' tsumo-28.7
Ron between others-1.6
Exhaustive draws-1.9

Change in expected points per game. Total -6.4pt/game (23 games).

As a table

Hand result	Hands	Total	Per game
Own wins	52	+1125.6	+48.9
Deal-ins	33	-530.1	-23.0
Others' tsumo	82	-660.6	-28.7
Ron between others	58	-37.5	-1.6
Exhaustive draws	68	-44.0	-1.9

Luck

Points from luck (/game)-1.1
Draw luck-0.8%
Starting hand (shanten)+0.11
Dora and red fives dealt+0.01
Ura-dora luck-0.06
Ippatsu rate-5.5%
Avoiding a chase riichi (/first riichi)+2.7%
Mangan+ tsumo against dealer rate17.1%

Every number for 2021-22

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.65	2.52 (2.32 to 2.72)	14%	39	23 games
Points per game	-6.5	-0.9 (-9.2 to 7.3)	15%	30	23 games
Points per game, luck removed	-5.3	-1.0 (-8.6 to 6.6)	19%	39	23 games
1st-place rate	26.1%	25.2% (17.2% to 33.3%)	15%	52	23 games
4th-place rate	39.1%	27.2% (19.0% to 35.3%)	16%	11	23 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	17.7%	19.4% (17.0% to 21.8%)	27%	23	293 hands
Deal-in rate	11.3%	11.0% (9.2% to 12.8%)	24%	27	293 hands
Riichi rate	25.3%	23.5% (20.9% to 26.0%)	28%	84	293 hands
Call rate	6.8%	9.8% (6.1% to 13.4%)	82%	1	293 hands
First riichi rate	71.6%	75.4% (71.1% to 79.7%)	14%	27	74 riichi
Average riichi turn	10.05	9.55 (9.15 to 9.95)	30%	20	74 riichi
Average win value	6,702	6,610 (6,029 to 7,191)	17%	55	52 wins
Average deal-in value	5,345	5,598 (5,062 to 6,133)	10%	68	33 deal-ins
Win efficiency	1,360	1,470 (1,366 to 1,575)	3%	33	293 hands
Deal-in loss	636	638 (532 to 745)	11%	39	293 hands
Net efficiency	724	821 (602 to 1,041)	13%	30	293 hands
Push rate vs riichi (1-shanten)	49.2%	43.1% (36.8% to 49.3%)	26%	97	65 hands facing riichi
Push rate vs riichi (2+ shanten)	24.5%	25.2% (18.6% to 31.8%)	37%	58	53 hands facing riichi
Tenpai rate after the first call	55.0%	32.8% (22.9% to 42.7%)	24%	100	20 first calls
Average win turn	12.95	12.39 (12.24 to 12.54)	1%	14	52 wins
Tenpai rate at exhaustive draws	35.3%	38.7% (32.6% to 44.9%)	27%	30	68 exhaustive draws
Staying in vs riichi	13.7%	14.0% (12.1% to 16.0%)	7%	58	146 hands facing an opponent’s riichi
Tile efficiency match rate	67.1%	68.0% (66.4% to 69.6%)	83%	4	1,697 discards
Average ukeire loss (tiles)	1.42	1.32 (1.22 to 1.42)	73%	100	1,606 discards
Breaking shape for value	3.7%	3.1% (2.6% to 3.6%)	64%	100	1,697 discards
Tenpai turn (luck-adjusted)	8.49	8.18 (8.06 to 8.31)	4%	90	76 tenpai hands
Immediate riichi rate	62.6%	68.0% (62.2% to 73.8%)	41%	11	76 tenpai hands
Dama rate	17.3%	15.2% (9.7% to 20.7%)	46%	65	52 wins
Riichi income	3,123	2,706 (1,948 to 3,464)	17%	62	74 riichi
Riichi win rate	47.3%	46.4% (40.3% to 52.5%)	30%	49	74 riichi
Riichi deal-in rate A	10.8%	14.2% (12.3% to 16.1%)	3%	74	74 riichi
Riichi deal-in rate B	6.8%	10.7% (8.2% to 13.2%)	8%	87	74 riichi
Riichi good-wait rate	51.4%	50.1% (44.5% to 55.6%)	20%	55	74 riichi
Riichi exhaustive draw rate	23.0%	20.1% (15.5% to 24.7%)	23%	74	74 riichi
Call income	1,250	511 (-4.32 to 1,027)	3%	71	20 calls
Win rate after calling	40.0%	30.5% (23.5% to 37.6%)	7%	74	20 calls
Deal-in rate after calling	15.0%	11.8% (6.9% to 16.7%)	7%	33	20 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.11	100	293 hands
Dora and red fives dealt	+0.01	36	293 hands
Draw luck	-0.8%	14	3,738 tile draws
Ura-dora luck	-0.06	30	35 riichi wins
Ippatsu rate	-5.5%	15	35 riichi wins
Avoiding a chase riichi (/first riichi)	+2.7%	55	53 first riichi
Mangan+ tsumo against dealer rate	17.1%	23	82 tsumo against
Points from luck (/game)	-1.1	49	23 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.9%	+1,078	+919	+159
Wins with calls	2.7%	+160	+382	-223
Dama wins	3.1%	+123	+173	-50
Deal-ins to riichi	5.1%	-322	-360	+39
Deal-ins to open hands	4.4%	-251	-203	-48
Deal-ins to dama	1.7%	-80	-101	+21
Others' tsumo	28.0%	-887	-752	-135
Other (exhaustive draws, etc.)	43.0%	-109	-60	-50
Total (per hand)		-289

2020-21 (31 games · skill estimate 1.2pt/game)

Style

Average win value6,648
Riichi rate22.8%
Deal-in rate10.9%
Win rate19.7%
First riichi rate74.7%
Average riichi turn9.47
Call rate9.4%
Tenpai rate at exhaustive draws35.9%
Staying in vs riichi14.2%
Push rate vs riichi (1-shanten)44.2%
Push rate vs riichi (2+ shanten)26.5%
Tile efficiency match rate69.1%
Tenpai turn (luck-adjusted)8.20
Immediate riichi rate64.4%
Dama rate21.0%

Where the points came from

Own wins+49.2
Deal-ins-19.1
Others' tsumo-19.6
Ron between others-2.3
Exhaustive draws-2.1

Change in expected points per game. Total +6.1pt/game (31 games).

As a table

Hand result	Hands	Total	Per game
Own wins	73	+1523.9	+49.2
Deal-ins	41	-591.4	-19.1
Others' tsumo	93	-608.5	-19.6
Ron between others	76	-70.5	-2.3
Exhaustive draws	99	-64.9	-2.1

Luck

Points from luck (/game)+2.4
Draw luck-0.9%
Starting hand (shanten)+0.04
Dora and red fives dealt+0.00
Ura-dora luck+0.12
Ippatsu rate+0.3%
Avoiding a chase riichi (/first riichi)+5.3%
Mangan+ tsumo against dealer rate7.5%

Every number for 2020-21

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.35	2.47 (2.29 to 2.66)	18%	80	31 games
Points per game	6.2	1.2 (-6.5 to 8.8)	19%	80	31 games
Points per game, luck removed	3.8	0.9 (-6.0 to 7.8)	24%	80	31 games
1st-place rate	32.3%	26.5% (19.0% to 33.9%)	19%	90	31 games
4th-place rate	19.4%	23.8% (16.2% to 31.3%)	20%	80	31 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	19.1%	19.7% (17.5% to 21.9%)	33%	49	382 hands
Deal-in rate	10.7%	10.9% (9.2% to 12.5%)	29%	52	382 hands
Riichi rate	23.0%	22.8% (20.5% to 25.2%)	34%	66	382 hands
Call rate	7.1%	9.4% (6.1% to 12.7%)	85%	1	382 hands
First riichi rate	68.2%	74.7% (70.6% to 78.9%)	16%	1	88 riichi
Average riichi turn	9.73	9.47 (9.09 to 9.84)	34%	18	88 riichi
Average win value	6,844	6,648 (6,121 to 7,175)	23%	62	73 wins
Average deal-in value	4,980	5,547 (5,033 to 6,061)	12%	86	41 deal-ins
Win efficiency	1,472	1,474 (1,372 to 1,576)	4%	62	382 hands
Deal-in loss	546	626 (525 to 726)	14%	83	382 hands
Net efficiency	925	850 (643 to 1,056)	16%	76	382 hands
Push rate vs riichi (1-shanten)	51.1%	44.2% (38.6% to 49.8%)	33%	97	88 hands facing riichi
Push rate vs riichi (2+ shanten)	27.6%	26.5% (21.0% to 32.1%)	49%	80	87 hands facing riichi
Tenpai rate after the first call	40.7%	30.2% (21.3% to 39.2%)	30%	86	27 first calls
Average win turn	12.73	12.39 (12.24 to 12.53)	2%	28	73 wins
Tenpai rate at exhaustive draws	28.3%	35.9% (30.5% to 41.2%)	36%	4	99 exhaustive draws
Staying in vs riichi	16.0%	14.2% (12.4% to 16.1%)	10%	97	213 hands facing an opponent’s riichi
Tile efficiency match rate	68.5%	69.1% (67.6% to 70.5%)	87%	15	2,163 discards
Average ukeire loss (tiles)	1.41	1.33 (1.24 to 1.42)	78%	100	2,072 discards
Breaking shape for value	2.5%	2.3% (1.9% to 2.8%)	69%	86	2,163 discards
Tenpai turn (luck-adjusted)	8.66	8.20 (8.07 to 8.32)	6%	100	98 tenpai hands
Immediate riichi rate	56.2%	64.4% (59.1% to 69.8%)	47%	1	98 tenpai hands
Dama rate	27.4%	21.0% (16.0% to 25.9%)	54%	97	73 wins
Riichi income	3,341	2,760 (2,037 to 3,484)	19%	83	88 riichi
Riichi win rate	51.1%	47.7% (42.0% to 53.5%)	33%	80	88 riichi
Riichi deal-in rate A	14.8%	14.3% (12.5% to 16.2%)	3%	56	88 riichi
Riichi deal-in rate B	8.0%	10.8% (8.3% to 13.2%)	9%	90	88 riichi
Riichi good-wait rate	42.0%	48.0% (42.7% to 53.3%)	23%	8	88 riichi
Riichi exhaustive draw rate	18.2%	19.0% (14.6% to 23.3%)	27%	42	88 riichi
Call income	2,233	562 (60.85 to 1,064)	4%	86	27 calls
Win rate after calling	29.6%	29.8% (23.1% to 36.5%)	10%	59	27 calls
Deal-in rate after calling	0.0%	10.4% (5.8% to 15.1%)	10%	93	27 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.04	76	382 hands
Dora and red fives dealt	+0.00	42	382 hands
Draw luck	-0.9%	4	4,975 tile draws
Ura-dora luck	+0.12	83	45 riichi wins
Ippatsu rate	+0.3%	49	45 riichi wins
Avoiding a chase riichi (/first riichi)	+5.3%	74	60 first riichi
Mangan+ tsumo against dealer rate	7.5%	93	93 tsumo against
Points from luck (/game)	+2.4	76	31 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.8%	+1,022	+919	+103
Wins with calls	2.1%	+185	+382	-197
Dama wins	5.2%	+265	+173	+92
Deal-ins to riichi	4.7%	-300	-360	+60
Deal-ins to open hands	3.7%	-165	-203	+38
Deal-ins to dama	2.4%	-99	-101	+1
Others' tsumo	24.3%	-613	-752	+139
Other (exhaustive draws, etc.)	45.8%	-141	-60	-82
Total (per hand)		+153

2019-20 (28 games · skill estimate 0.9pt/game)

Style

Average win value6,937
Riichi rate22.9%
Deal-in rate10.8%
Win rate19.7%
First riichi rate74.5%
Average riichi turn9.60
Call rate11.3%
Tenpai rate at exhaustive draws39.3%
Staying in vs riichi14.2%
Push rate vs riichi (1-shanten)40.9%
Push rate vs riichi (2+ shanten)30.0%
Tile efficiency match rate67.5%
Tenpai turn (luck-adjusted)8.19
Immediate riichi rate65.6%
Dama rate21.3%

Where the points came from

Own wins+48.8
Deal-ins-22.2
Others' tsumo-17.7
Ron between others-2.2
Exhaustive draws-1.7

Change in expected points per game. Total +5.0pt/game (28 games).

As a table

Hand result	Hands	Total	Per game
Own wins	66	+1367.2	+48.8
Deal-ins	36	-622.0	-22.2
Others' tsumo	82	-495.4	-17.7
Ron between others	83	-62.1	-2.2
Exhaustive draws	77	-47.9	-1.7

Luck

Points from luck (/game)+9.3
Draw luck+0.9%
Starting hand (shanten)-0.06
Dora and red fives dealt-0.06
Ura-dora luck+0.05
Ippatsu rate+3.9%
Avoiding a chase riichi (/first riichi)+12.1%
Mangan+ tsumo against dealer rate12.2%

Every number for 2019-20

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.46	2.49 (2.30 to 2.68)	16%	61	28 games
Points per game	5.4	0.9 (-6.9 to 8.8)	17%	75	28 games
Points per game, luck removed	-3.9	-0.9 (-8.0 to 6.3)	22%	33	28 games
1st-place rate	32.1%	26.3% (18.7% to 34.0%)	18%	89	28 games
4th-place rate	28.6%	25.6% (17.8% to 33.3%)	19%	40	28 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	19.2%	19.7% (17.5% to 22.0%)	30%	54	344 hands
Deal-in rate	10.5%	10.8% (9.1% to 12.5%)	27%	61	344 hands
Riichi rate	23.3%	22.9% (20.5% to 25.3%)	32%	75	344 hands
Call rate	9.0%	11.3% (7.8% to 14.7%)	84%	1	344 hands
First riichi rate	66.3%	74.5% (70.3% to 78.8%)	15%	5	80 riichi
Average riichi turn	10.18	9.60 (9.22 to 9.99)	32%	5	80 riichi
Average win value	8,238	6,937 (6,393 to 7,481)	21%	96	66 wins
Average deal-in value	7,117	5,788 (5,261 to 6,316)	11%	1	36 deal-ins
Win efficiency	1,740	1,484 (1,382 to 1,587)	4%	100	344 hands
Deal-in loss	767	655 (553 to 758)	13%	12	344 hands
Net efficiency	973	856 (644 to 1,068)	15%	79	344 hands
Push rate vs riichi (1-shanten)	41.2%	40.9% (34.8% to 47.1%)	27%	50	68 hands facing riichi
Push rate vs riichi (2+ shanten)	35.6%	30.0% (24.1% to 36.0%)	45%	100	73 hands facing riichi
Tenpai rate after the first call	48.4%	33.3% (24.8% to 41.7%)	33%	96	31 first calls
Average win turn	12.80	12.39 (12.24 to 12.53)	2%	19	66 wins
Tenpai rate at exhaustive draws	37.7%	39.3% (33.4% to 45.2%)	30%	33	77 exhaustive draws
Staying in vs riichi	15.9%	14.2% (12.4% to 16.1%)	8%	72	176 hands facing an opponent’s riichi
Tile efficiency match rate	66.6%	67.5% (66.0% to 69.0%)	85%	1	1,920 discards
Average ukeire loss (tiles)	1.33	1.26 (1.17 to 1.36)	76%	96	1,837 discards
Breaking shape for value	2.2%	2.2% (1.7% to 2.6%)	67%	72	1,920 discards
Tenpai turn (luck-adjusted)	8.71	8.19 (8.07 to 8.32)	5%	100	82 tenpai hands
Immediate riichi rate	57.4%	65.6% (60.0% to 71.3%)	42%	5	82 tenpai hands
Dama rate	28.8%	21.3% (16.2% to 26.4%)	52%	96	66 wins
Riichi income	3,496	2,778 (2,035 to 3,520)	18%	75	80 riichi
Riichi win rate	47.5%	46.5% (40.5% to 52.4%)	31%	61	80 riichi
Riichi deal-in rate A	12.5%	14.3% (12.4% to 16.1%)	3%	75	80 riichi
Riichi deal-in rate B	11.3%	11.1% (8.6% to 13.6%)	8%	43	80 riichi
Riichi good-wait rate	55.0%	50.9% (45.4% to 56.3%)	21%	79	80 riichi
Riichi exhaustive draw rate	15.0%	18.2% (13.7% to 22.7%)	25%	12	80 riichi
Call income	535	489 (-5.11 to 983)	5%	43	31 calls
Win rate after calling	29.0%	29.7% (23.2% to 36.2%)	11%	43	31 calls
Deal-in rate after calling	12.9%	11.7% (7.1% to 16.2%)	11%	40	31 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.06	36	344 hands
Dora and red fives dealt	-0.06	5	344 hands
Draw luck	+0.9%	100	4,384 tile draws
Ura-dora luck	+0.05	47	38 riichi wins
Ippatsu rate	+3.9%	72	38 riichi wins
Avoiding a chase riichi (/first riichi)	+12.1%	100	53 first riichi
Mangan+ tsumo against dealer rate	12.2%	54	82 tsumo against
Points from luck (/game)	+9.3	96	28 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.0%	+1,148	+919	+229
Wins with calls	2.6%	+143	+382	-239
Dama wins	5.5%	+449	+173	+276
Deal-ins to riichi	4.7%	-419	-360	-59
Deal-ins to open hands	2.9%	-128	-203	+75
Deal-ins to dama	2.9%	-245	-101	-145
Others' tsumo	23.8%	-633	-752	+120
Other (exhaustive draws, etc.)	46.5%	-84	-60	-25
Total (per hand)		+230

2018-19 (22 games · skill estimate 0.7pt/game)

Style

Average win value6,620
Riichi rate22.0%
Deal-in rate11.8%
Win rate20.4%
First riichi rate76.2%
Average riichi turn9.26
Call rate19.2%
Tenpai rate at exhaustive draws39.3%
Staying in vs riichi14.2%
Push rate vs riichi (1-shanten)40.9%
Push rate vs riichi (2+ shanten)29.8%
Tile efficiency match rate71.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.8%
Dama rate15.5%

Where the points came from

Own wins+51.1
Deal-ins-24.2
Others' tsumo-17.9
Ron between others-2.1
Exhaustive draws-1.6

Change in expected points per game. Total +5.3pt/game (22 games).

As a table

Hand result	Hands	Total	Per game
Own wins	56	+1123.4	+51.1
Deal-ins	39	-531.4	-24.2
Others' tsumo	65	-393.6	-17.9
Ron between others	44	-45.8	-2.1
Exhaustive draws	54	-36.0	-1.6

Luck

Points from luck (/game)+0.4
Draw luck+0.7%
Starting hand (shanten)-0.09
Dora and red fives dealt+0.04
Ura-dora luck-0.16
Ippatsu rate+8.8%
Avoiding a chase riichi (/first riichi)+0.4%
Mangan+ tsumo against dealer rate7.7%

Every number for 2018-19

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.36	2.48 (2.28 to 2.68)	13%	70	22 games
Points per game	5.3	0.7 (-7.6 to 9.1)	14%	75	22 games
Points per game, luck removed	4.9	0.9 (-6.8 to 8.6)	18%	70	22 games
1st-place rate	27.3%	25.4% (17.3% to 33.5%)	15%	70	22 games
4th-place rate	22.7%	24.6% (16.3% to 32.8%)	15%	55	22 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	21.7%	20.4% (17.9% to 22.9%)	25%	80	258 hands
Deal-in rate	15.1%	11.8% (9.9% to 13.7%)	22%	6	258 hands
Riichi rate	19.8%	22.0% (19.3% to 24.6%)	26%	26	258 hands
Call rate	18.2%	19.2% (15.3% to 23.0%)	80%	36	258 hands
First riichi rate	78.4%	76.2% (71.6% to 80.9%)	10%	55	51 riichi
Average riichi turn	9.02	9.26 (8.81 to 9.72)	23%	90	51 riichi
Average win value	6,750	6,620 (6,050 to 7,190)	18%	46	56 wins
Average deal-in value	4,900	5,541 (5,022 to 6,060)	12%	95	39 deal-ins
Win efficiency	1,648	1,479 (1,374 to 1,584)	3%	65	258 hands
Deal-in loss	767	652 (543 to 760)	10%	31	258 hands
Net efficiency	881	841 (615 to 1,066)	11%	55	258 hands
Push rate vs riichi (1-shanten)	41.3%	40.9% (33.9% to 47.9%)	20%	55	46 hands facing riichi
Push rate vs riichi (2+ shanten)	37.3%	29.8% (23.1% to 36.5%)	36%	90	51 hands facing riichi
Tenpai rate after the first call	38.3%	31.1% (23.8% to 38.4%)	43%	95	47 first calls
Average win turn	13.13	12.39 (12.24 to 12.54)	1%	16	56 wins
Tenpai rate at exhaustive draws	37.0%	39.3% (32.7% to 46.0%)	23%	46	54 exhaustive draws
Staying in vs riichi	15.7%	14.2% (12.2% to 16.1%)	6%	80	127 hands facing an opponent’s riichi
Tile efficiency match rate	71.0%	71.4% (69.6% to 73.2%)	80%	21	1,350 discards
Average ukeire loss (tiles)	1.09	1.08 (0.97 to 1.19)	69%	50	1,298 discards
Breaking shape for value	2.9%	2.5% (2.0% to 3.0%)	59%	95	1,350 discards
Tenpai turn (luck-adjusted)	8.37	8.17 (8.04 to 8.30)	3%	75	53 tenpai hands
Immediate riichi rate	69.0%	70.8% (64.2% to 77.4%)	32%	46	53 tenpai hands
Dama rate	17.9%	15.5% (10.1% to 20.9%)	48%	55	56 wins
Riichi income	3,551	2,735 (1,911 to 3,559)	12%	65	51 riichi
Riichi win rate	54.9%	48.0% (41.1% to 54.9%)	23%	80	51 riichi
Riichi deal-in rate A	15.7%	14.3% (12.4% to 16.3%)	2%	31	51 riichi
Riichi deal-in rate B	13.7%	11.2% (8.5% to 13.8%)	5%	26	51 riichi
Riichi good-wait rate	37.3%	47.9% (41.8% to 54.1%)	15%	6	51 riichi
Riichi exhaustive draw rate	15.7%	18.6% (13.5% to 23.8%)	17%	36	51 riichi
Call income	1,485	560 (90.75 to 1,028)	7%	90	47 calls
Win rate after calling	38.3%	31.1% (25.2% to 37.1%)	16%	95	47 calls
Deal-in rate after calling	17.0%	12.4% (8.2% to 16.5%)	15%	26	47 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.09	11	258 hands
Dora and red fives dealt	+0.04	85	258 hands
Draw luck	+0.7%	90	3,180 tile draws
Ura-dora luck	-0.16	1	28 riichi wins
Ippatsu rate	+8.8%	93	28 riichi wins
Avoiding a chase riichi (/first riichi)	+0.4%	55	40 first riichi
Mangan+ tsumo against dealer rate	7.7%	100	65 tsumo against
Points from luck (/game)	+0.4	46	22 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.9%	+960	+919	+41
Wins with calls	7.0%	+446	+382	+63
Dama wins	3.9%	+243	+173	+70
Deal-ins to riichi	5.0%	-228	-360	+132
Deal-ins to open hands	7.4%	-464	-203	-260
Deal-ins to dama	2.7%	-103	-101	-2
Others' tsumo	25.2%	-602	-752	+150
Other (exhaustive draws, etc.)	38.0%	-70	-60	-10
Total (per hand)		+182

Columns about this player

Is Raiden's mahjong fun? (Japanese)"Raiden's mahjong is fun!" The records put the slogan to a serious test: surprising games and big wins.

Players with a similar styleclosest career style metrics first

This player's style differs substantially from everyone else's. These players are the closest matches.

Masato HagiwaraTEAM RAIDENIn common: Chasing riichi often, Late riichi, Closed-hand oriented
Jun MurakamiFormer M.League playerIn common: Late riichi, Closed-hand oriented, Dama-heavy
Seiichi KondoFormer M.League playerIn common: High-value hands, Late riichi, 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.