Player · 241 career games · 2018-19–2025-26

Go Kobayashi

Uses calls a lot to move hands along. Stands out for smaller wins, a high win rate and riichi-ing first. Career record: -0.5pt per game, close to average.

Call-heavy
Early riichi
First riichi often

Actual / game

-0.5

241 career games

Skill estimate / game

-0.3

90% interval -4.2 to +3.5

Estimate, luck removed

-0.3

adjusted for starting hands, draws, ura-dora

Weight of the record

64%

share of the estimate from the record

Styleleague percentile, career

Average win value5,948
Riichi rate20.4%
Deal-in rate10.6%
Win rate22.3%
First riichi rate77.9%
Average riichi turn9.05
Call rate32.5%
Tenpai rate at exhaustive draws38.2%
Staying in vs riichi14.4%
Push rate vs riichi (1-shanten)38.9%
Push rate vs riichi (2+ shanten)23.4%
Tile efficiency match rate72.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.3%
Dama rate10.9%

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.

Placements241 career games, average placement 2.50

1st22.0%53×
2nd27.4%66×
3rd29.0%70×
4th21.6%52×

Riichi and callsbalance and outcome of hands with riichi or calls

Riichi income2,798
Riichi win rate50.4%
Riichi deal-in rate A14.2%
Riichi deal-in rate B11.3%
Riichi good-wait rate50.4%
Riichi exhaustive draw rate16.9%
Call income375
Win rate after calling31.0%
Deal-in rate after calling10.4%
Tenpai rate after the first call21.9%

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 loss633
Average win turn12.38

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 game-0.3
Points per game, luck removed-0.3
Average placement2.50

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

Points from luck (/game)-0.1
Draw luck+0.0%
Starting hand (shanten)+0.01
Dora and red fives dealt+0.02
Ura-dora luck+0.02
Ippatsu rate+1.1%
Avoiding a chase riichi (/first riichi)+0.9%
Mangan+ tsumo against dealer rate11.8%

Where the points came fromchange in expected points, all stages

Own wins+46.8
Deal-ins-20.2
Others' tsumo-24.9
Ron between others-2.1
Exhaustive draws-0.3

Change in expected points per game. Total -0.6pt/game (241 games).

As a table

Hand result	Hands	Total	Per game
Own wins	656	+11277.4	+46.8
Deal-ins	302	-4871.6	-20.2
Others' tsumo	785	-5989.6	-24.9
Ron between others	567	-494.7	-2.1
Exhaustive draws	553	-63.4	-0.3

Hand balance breakdownpoints won or lost per hand, all stages

Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.2%	+851	+919	-68
Wins with calls	10.2%	+467	+382	+85
Dama wins	2.4%	+155	+173	-18
Deal-ins to riichi	4.8%	-354	-360	+6
Deal-ins to open hands	4.2%	-190	-203	+13
Deal-ins to dama	1.6%	-107	-101	-6
Others' tsumo	27.4%	-750	-752	+2
Other (exhaustive draws, etc.)	39.1%	-55	-60	+5
Total (per hand)		+17

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

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.50	2.50 (2.41 to 2.59)	62%	52	241 games
Points per game	-0.5	-0.3 (-4.2 to 3.5)	64%	43	241 games
Points per game, luck removed	-0.4	-0.3 (-3.7 to 3.1)	71%	43	241 games
1st-place rate	22.0%	23.1% (19.3% to 26.8%)	65%	13	241 games
4th-place rate	21.6%	22.7% (18.9% to 26.4%)	67%	88	241 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.9%	22.3% (21.2% to 23.4%)	78%	98	2,863 hands
Deal-in rate	10.5%	10.6% (9.8% to 11.5%)	75%	64	2,863 hands
Riichi rate	19.8%	20.4% (19.2% to 21.5%)	80%	1	2,863 hands
Call rate	32.7%	32.5% (31.2% to 33.8%)	98%	98	2,863 hands
First riichi rate	79.3%	77.9% (75.6% to 80.1%)	56%	96	566 riichi
Average riichi turn	8.96	9.05 (8.85 to 9.24)	77%	96	566 riichi
Average win value	5,706	5,948 (5,700 to 6,196)	73%	1	656 wins
Average deal-in value	5,717	5,672 (5,396 to 5,948)	51%	31	302 deal-ins
Win efficiency	1,474	1,474 (1,406 to 1,542)	25%	52	2,863 hands
Deal-in loss	628	633 (580 to 685)	55%	56	2,863 hands
Net efficiency	845	841 (735 to 948)	59%	58	2,863 hands
Push rate vs riichi (1-shanten)	38.1%	38.9% (35.7% to 42.1%)	72%	19	462 hands facing riichi
Push rate vs riichi (2+ shanten)	22.9%	23.4% (20.3% to 26.4%)	84%	21	462 hands facing riichi
Tenpai rate after the first call	21.7%	21.9% (19.7% to 24.2%)	94%	13	936 first calls
Average win turn	12.41	12.38 (12.27 to 12.50)	14%	43	656 wins
Tenpai rate at exhaustive draws	37.6%	38.2% (35.2% to 41.2%)	76%	17	553 exhaustive draws
Staying in vs riichi	14.9%	14.4% (13.4% to 15.4%)	42%	80	1,465 hands facing an opponent’s riichi
Tile efficiency match rate	72.4%	72.4% (71.8% to 73.0%)	98%	43	15,491 discards
Average ukeire loss (tiles)	1.06	1.06 (1.02 to 1.10)	96%	52	15,033 discards
Breaking shape for value	1.9%	1.9% (1.8% to 2.1%)	94%	33	15,491 discards
Tenpai turn (luck-adjusted)	8.16	8.17 (8.08 to 8.25)	26%	58	577 tenpai hands
Immediate riichi rate	70.1%	70.3% (67.5% to 73.1%)	84%	33	577 tenpai hands
Dama rate	10.7%	10.9% (8.8% to 13.0%)	91%	31	656 wins
Riichi income	2,912	2,798 (2,410 to 3,185)	60%	86	566 riichi
Riichi win rate	51.8%	50.4% (47.4% to 53.4%)	76%	98	566 riichi
Riichi deal-in rate A	13.8%	14.2% (12.8% to 15.6%)	18%	70	566 riichi
Riichi deal-in rate B	11.7%	11.3% (9.8% to 12.7%)	38%	23	566 riichi
Riichi good-wait rate	50.7%	50.4% (47.6% to 53.2%)	65%	60	566 riichi
Riichi exhaustive draw rate	15.9%	16.9% (14.6% to 19.2%)	70%	13	566 riichi
Call income	304	375 (177 to 574)	61%	13	936 calls
Win rate after calling	31.3%	31.0% (28.8% to 33.2%)	79%	84	936 calls
Deal-in rate after calling	10.0%	10.4% (8.8% to 11.9%)	78%	84	936 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.01	66	2,863 hands
Dora and red fives dealt	+0.02	82	2,863 hands
Draw luck	+0.0%	58	34,427 tile draws
Ura-dora luck	+0.02	56	293 riichi wins
Ippatsu rate	+1.1%	78	293 riichi wins
Avoiding a chase riichi (/first riichi)	+0.9%	64	449 first riichi
Mangan+ tsumo against dealer rate	11.8%	62	785 tsumo against
Points from luck (/game)	-0.1	54	241 games

By seasonRegular Season

2025-26 (25 games · skill estimate -2.8pt/game)

Style

Average win value6,285
Riichi rate21.8%
Deal-in rate11.4%
Win rate19.5%
First riichi rate76.1%
Average riichi turn9.15
Call rate32.7%
Tenpai rate at exhaustive draws41.9%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)41.6%
Push rate vs riichi (2+ shanten)22.2%
Tile efficiency match rate73.7%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate74.3%
Dama rate9.7%

Where the points came from

Own wins+33.3
Deal-ins-19.5
Others' tsumo-31.4
Ron between others-0.7
Exhaustive draws+0.7

Change in expected points per game. Total -17.6pt/game (25 games).

As a table

Hand result	Hands	Total	Per game
Own wins	54	+833.1	+33.3
Deal-ins	38	-488.3	-19.5
Others' tsumo	91	-783.8	-31.4
Ron between others	58	-18.4	-0.7
Exhaustive draws	54	+17.8	+0.7

Luck

Points from luck (/game)-12.2
Draw luck-0.4%
Starting hand (shanten)-0.04
Dora and red fives dealt-0.00
Ura-dora luck-0.25
Ippatsu rate-9.7%
Avoiding a chase riichi (/first riichi)-6.5%
Mangan+ tsumo against dealer rate9.9%

Every number for 2025-26

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.92	2.56 (2.36 to 2.76)	15%	4	25 games
Points per game	-17.8	-2.8 (-10.8 to 5.3)	16%	1	25 games
Points per game, luck removed	-5.6	-1.1 (-8.5 to 6.3)	20%	31	25 games
1st-place rate	12.0%	22.9% (15.1% to 30.8%)	16%	16	25 games
4th-place rate	40.0%	27.5% (19.5% to 35.5%)	17%	1	25 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	18.3%	19.5% (17.1% to 21.9%)	27%	16	295 hands
Deal-in rate	12.9%	11.4% (9.6% to 13.2%)	24%	31	295 hands
Riichi rate	19.3%	21.8% (19.2% to 24.3%)	29%	11	295 hands
Call rate	34.9%	32.7% (29.1% to 36.4%)	82%	100	295 hands
First riichi rate	77.2%	76.1% (71.6% to 80.7%)	11%	70	57 riichi
Average riichi turn	8.61	9.15 (8.72 to 9.59)	25%	100	57 riichi
Average win value	4,885	6,285 (5,710 to 6,860)	18%	1	54 wins
Average deal-in value	5,024	5,557 (5,035 to 6,079)	11%	75	38 deal-ins
Win efficiency	1,034	1,460 (1,355 to 1,564)	3%	1	295 hands
Deal-in loss	687	644 (538 to 750)	11%	47	295 hands
Net efficiency	347	772 (553 to 991)	13%	4	295 hands
Push rate vs riichi (1-shanten)	44.4%	41.6% (34.5% to 48.6%)	20%	59	45 hands facing riichi
Push rate vs riichi (2+ shanten)	16.7%	22.2% (15.7% to 28.8%)	37%	9	54 hands facing riichi
Tenpai rate after the first call	19.4%	21.8% (16.1% to 27.4%)	63%	34	103 first calls
Average win turn	12.27	12.38 (12.23 to 12.53)	1%	49	54 wins
Tenpai rate at exhaustive draws	48.1%	41.9% (35.2% to 48.6%)	23%	73	54 exhaustive draws
Staying in vs riichi	13.8%	14.1% (12.1% to 16.0%)	7%	52	152 hands facing an opponent’s riichi
Tile efficiency match rate	73.9%	73.7% (72.1% to 75.4%)	82%	42	1,550 discards
Average ukeire loss (tiles)	0.88	0.93 (0.83 to 1.03)	72%	29	1,502 discards
Breaking shape for value	1.8%	1.9% (1.4% to 2.4%)	62%	49	1,550 discards
Tenpai turn (luck-adjusted)	7.84	8.16 (8.03 to 8.29)	3%	26	51 tenpai hands
Immediate riichi rate	80.1%	74.3% (67.6% to 81.0%)	31%	85	51 tenpai hands
Dama rate	5.6%	9.7% (4.3% to 15.1%)	47%	24	54 wins
Riichi income	744	2,373 (1,568 to 3,178)	13%	4	57 riichi
Riichi win rate	35.1%	43.3% (36.6% to 50.0%)	25%	4	57 riichi
Riichi deal-in rate A	17.5%	14.4% (12.5% to 16.3%)	2%	29	57 riichi
Riichi deal-in rate B	14.0%	11.2% (8.6% to 13.8%)	6%	31	57 riichi
Riichi good-wait rate	47.4%	49.4% (43.4% to 55.3%)	16%	49	57 riichi
Riichi exhaustive draw rate	26.3%	20.6% (15.6% to 25.6%)	19%	95	57 riichi
Call income	530	493 (86.98 to 899)	15%	59	103 calls
Win rate after calling	30.1%	29.9% (25.2% to 34.6%)	29%	52	103 calls
Deal-in rate after calling	10.7%	11.3% (8.0% to 14.6%)	29%	62	103 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.04	14	295 hands
Dora and red fives dealt	-0.00	62	295 hands
Draw luck	-0.4%	24	3,472 tile draws
Ura-dora luck	-0.25	4	20 riichi wins
Ippatsu rate	-9.7%	1	20 riichi wins
Avoiding a chase riichi (/first riichi)	-6.5%	11	44 first riichi
Mangan+ tsumo against dealer rate	9.9%	87	91 tsumo against
Points from luck (/game)	-12.2	1	25 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	6.8%	+489	+919	-430
Wins with calls	10.5%	+507	+382	+125
Dama wins	1.0%	+37	+173	-136
Deal-ins to riichi	5.8%	-404	-360	-44
Deal-ins to open hands	5.4%	-229	-203	-26
Deal-ins to dama	1.7%	-81	-101	+20
Others' tsumo	30.8%	-876	-752	-123
Other (exhaustive draws, etc.)	38.0%	-20	-60	+39
Total (per hand)		-576

2024-25 (21 games · skill estimate -0.5pt/game)

Style

Average win value6,280
Riichi rate22.0%
Deal-in rate11.2%
Win rate20.5%
First riichi rate75.0%
Average riichi turn9.33
Call rate35.1%
Tenpai rate at exhaustive draws41.5%
Staying in vs riichi14.3%
Push rate vs riichi (1-shanten)42.0%
Push rate vs riichi (2+ shanten)27.3%
Tile efficiency match rate71.5%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.7%
Dama rate9.0%

Where the points came from

Own wins+37.6
Deal-ins-17.3
Others' tsumo-24.4
Ron between others-1.6
Exhaustive draws+0.6

Change in expected points per game. Total -5.1pt/game (21 games).

As a table

Hand result	Hands	Total	Per game
Own wins	52	+789.3	+37.6
Deal-ins	28	-364.3	-17.3
Others' tsumo	64	-512.7	-24.4
Ron between others	50	-33.6	-1.6
Exhaustive draws	37	+13.4	+0.6

Luck

Points from luck (/game)+0.2
Draw luck-0.1%
Starting hand (shanten)-0.02
Dora and red fives dealt+0.00
Ura-dora luck-0.03
Ippatsu rate-0.7%
Avoiding a chase riichi (/first riichi)-5.7%
Mangan+ tsumo against dealer rate18.8%

Every number for 2024-25

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.52	2.50 (2.30 to 2.70)	13%	43	21 games
Points per game	-3.7	-0.5 (-8.9 to 7.9)	13%	38	21 games
Points per game, luck removed	-3.9	-0.7 (-8.4 to 7.1)	18%	38	21 games
1st-place rate	19.0%	24.2% (16.0% to 32.4%)	14%	29	21 games
4th-place rate	28.6%	25.4% (17.1% to 33.8%)	15%	43	21 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.5%	20.5% (17.9% to 23.2%)	23%	69	231 hands
Deal-in rate	12.1%	11.2% (9.2% to 13.1%)	20%	35	231 hands
Riichi rate	19.5%	22.0% (19.2% to 24.7%)	24%	9	231 hands
Call rate	38.5%	35.1% (31.1% to 39.1%)	78%	100	231 hands
First riichi rate	64.4%	75.0% (70.2% to 79.7%)	9%	7	45 riichi
Average riichi turn	9.29	9.33 (8.86 to 9.80)	21%	46	45 riichi
Average win value	4,800	6,280 (5,699 to 6,861)	17%	1	52 wins
Average deal-in value	4,796	5,554 (5,003 to 6,105)	9%	72	28 deal-ins
Win efficiency	1,235	1,468 (1,362 to 1,574)	3%	24	231 hands
Deal-in loss	610	636 (526 to 747)	9%	49	231 hands
Net efficiency	626	813 (583 to 1,043)	10%	32	231 hands
Push rate vs riichi (1-shanten)	47.5%	42.0% (34.8% to 49.3%)	18%	60	40 hands facing riichi
Push rate vs riichi (2+ shanten)	33.3%	27.3% (19.0% to 35.7%)	23%	69	27 hands facing riichi
Tenpai rate after the first call	18.0%	21.1% (15.2% to 27.0%)	59%	12	89 first calls
Average win turn	12.49	12.38 (12.23 to 12.53)	1%	24	52 wins
Tenpai rate at exhaustive draws	48.6%	41.5% (34.1% to 48.9%)	17%	80	37 exhaustive draws
Staying in vs riichi	18.5%	14.3% (12.3% to 16.3%)	6%	86	119 hands facing an opponent’s riichi
Tile efficiency match rate	71.1%	71.5% (69.6% to 73.3%)	79%	9	1,249 discards
Average ukeire loss (tiles)	1.03	1.04 (0.93 to 1.15)	67%	60	1,211 discards
Breaking shape for value	2.2%	2.1% (1.6% to 2.6%)	57%	58	1,249 discards
Tenpai turn (luck-adjusted)	8.24	8.17 (8.04 to 8.30)	2%	69	39 tenpai hands
Immediate riichi rate	68.1%	70.7% (63.3% to 78.1%)	26%	32	39 tenpai hands
Dama rate	3.8%	9.0% (3.5% to 14.5%)	46%	9	52 wins
Riichi income	1,869	2,541 (1,697 to 3,386)	11%	32	45 riichi
Riichi win rate	46.7%	46.1% (38.9% to 53.3%)	20%	55	45 riichi
Riichi deal-in rate A	13.3%	14.3% (12.4% to 16.2%)	2%	55	45 riichi
Riichi deal-in rate B	8.9%	10.9% (8.2% to 13.6%)	5%	63	45 riichi
Riichi good-wait rate	42.2%	48.8% (42.4% to 55.1%)	13%	24	45 riichi
Riichi exhaustive draw rate	8.9%	17.6% (12.3% to 22.9%)	16%	18	45 riichi
Call income	167	445 (25.66 to 864)	13%	24	89 calls
Win rate after calling	32.6%	30.5% (25.6% to 35.5%)	26%	65	89 calls
Deal-in rate after calling	11.2%	11.4% (8.0% to 14.9%)	26%	66	89 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.02	46	231 hands
Dora and red fives dealt	+0.00	63	231 hands
Draw luck	-0.1%	49	2,709 tile draws
Ura-dora luck	-0.03	46	21 riichi wins
Ippatsu rate	-0.7%	58	21 riichi wins
Avoiding a chase riichi (/first riichi)	-5.7%	24	29 first riichi
Mangan+ tsumo against dealer rate	18.8%	7	64 tsumo against
Points from luck (/game)	+0.2	58	21 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.1%	+681	+919	-238
Wins with calls	12.6%	+492	+382	+110
Dama wins	0.9%	+63	+173	-110
Deal-ins to riichi	5.2%	-316	-360	+44
Deal-ins to open hands	5.6%	-230	-203	-27
Deal-ins to dama	1.3%	-81	-101	+20
Others' tsumo	27.7%	-805	-752	-52
Other (exhaustive draws, etc.)	37.7%	-26	-60	+34
Total (per hand)		-223

2023-24 (22 games · skill estimate -1.2pt/game)

Style

Average win value6,430
Riichi rate21.4%
Deal-in rate11.9%
Win rate20.3%
First riichi rate76.7%
Average riichi turn9.12
Call rate28.0%
Tenpai rate at exhaustive draws38.4%
Staying in vs riichi13.9%
Push rate vs riichi (1-shanten)39.5%
Push rate vs riichi (2+ shanten)26.0%
Tile efficiency match rate72.3%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate72.3%
Dama rate11.4%

Where the points came from

Own wins+39.6
Deal-ins-27.0
Others' tsumo-18.1
Ron between others-1.8
Exhaustive draws-1.3

Change in expected points per game. Total -8.6pt/game (22 games).

As a table

Hand result	Hands	Total	Per game
Own wins	54	+871.3	+39.6
Deal-ins	39	-595.0	-27.0
Others' tsumo	67	-398.2	-18.1
Ron between others	54	-40.0	-1.8
Exhaustive draws	39	-28.2	-1.3

Luck

Points from luck (/game)-0.8
Draw luck-0.3%
Starting hand (shanten)+0.05
Dora and red fives dealt+0.05
Ura-dora luck-0.07
Ippatsu rate+0.3%
Avoiding a chase riichi (/first riichi)-7.1%
Mangan+ tsumo against dealer rate10.4%

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	-8.9	-1.2 (-9.5 to 7.1)	14%	18	22 games
Points per game, luck removed	-8.0	-1.5 (-9.1 to 6.2)	18%	24	22 games
1st-place rate	22.7%	24.7% (16.6% to 32.8%)	15%	45	22 games
4th-place rate	36.4%	26.7% (18.4% to 34.9%)	15%	7	22 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	21.3%	20.3% (17.8% to 22.8%)	24%	75	253 hands
Deal-in rate	15.4%	11.9% (10.0% to 13.8%)	21%	1	253 hands
Riichi rate	17.4%	21.4% (18.7% to 24.1%)	26%	4	253 hands
Call rate	29.2%	28.0% (24.1% to 31.8%)	79%	89	253 hands
First riichi rate	84.1%	76.7% (72.0% to 81.5%)	9%	92	44 riichi
Average riichi turn	8.30	9.12 (8.65 to 9.60)	21%	100	44 riichi
Average win value	5,694	6,430 (5,855 to 7,005)	18%	4	54 wins
Average deal-in value	6,000	5,670 (5,150 to 6,189)	12%	26	39 deal-ins
Win efficiency	1,347	1,470 (1,365 to 1,576)	3%	12	253 hands
Deal-in loss	953	670 (561 to 779)	10%	4	253 hands
Net efficiency	393	785 (559 to 1,011)	11%	1	253 hands
Push rate vs riichi (1-shanten)	34.1%	39.5% (32.4% to 46.6%)	20%	8	44 hands facing riichi
Push rate vs riichi (2+ shanten)	27.0%	26.0% (18.4% to 33.5%)	29%	46	37 hands facing riichi
Tenpai rate after the first call	16.2%	20.5% (14.2% to 26.8%)	55%	9	74 first calls
Average win turn	11.76	12.37 (12.22 to 12.52)	1%	89	54 wins
Tenpai rate at exhaustive draws	30.8%	38.4% (31.1% to 45.7%)	18%	15	39 exhaustive draws
Staying in vs riichi	11.0%	13.9% (11.9% to 15.8%)	6%	24	127 hands facing an opponent’s riichi
Tile efficiency match rate	72.1%	72.3% (70.5% to 74.0%)	81%	35	1,409 discards
Average ukeire loss (tiles)	1.08	1.07 (0.97 to 1.18)	70%	63	1,360 discards
Breaking shape for value	2.3%	2.2% (1.7% to 2.7%)	60%	72	1,409 discards
Tenpai turn (luck-adjusted)	8.19	8.17 (8.04 to 8.30)	3%	66	49 tenpai hands
Immediate riichi rate	73.7%	72.3% (65.4% to 79.1%)	31%	58	49 tenpai hands
Dama rate	9.3%	11.4% (6.0% to 16.9%)	47%	26	54 wins
Riichi income	2,493	2,609 (1,762 to 3,457)	11%	55	44 riichi
Riichi win rate	56.8%	48.2% (40.9% to 55.4%)	20%	93	44 riichi
Riichi deal-in rate A	15.9%	14.3% (12.4% to 16.3%)	2%	35	44 riichi
Riichi deal-in rate B	13.6%	11.2% (8.5% to 13.9%)	5%	29	44 riichi
Riichi good-wait rate	45.5%	49.2% (42.8% to 55.5%)	13%	35	44 riichi
Riichi exhaustive draw rate	9.1%	17.7% (12.4% to 23.0%)	15%	7	44 riichi
Call income	-2.70	432 (-2.74 to 868)	11%	21	74 calls
Win rate after calling	32.4%	30.4% (25.1% to 35.7%)	22%	75	74 calls
Deal-in rate after calling	20.3%	13.5% (9.8% to 17.2%)	22%	4	74 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.05	69	253 hands
Dora and red fives dealt	+0.05	94	253 hands
Draw luck	-0.3%	43	2,956 tile draws
Ura-dora luck	-0.07	38	25 riichi wins
Ippatsu rate	+0.3%	55	25 riichi wins
Avoiding a chase riichi (/first riichi)	-7.1%	15	37 first riichi
Mangan+ tsumo against dealer rate	10.4%	66	67 tsumo against
Points from luck (/game)	-0.8	38	22 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.9%	+770	+919	-149
Wins with calls	9.5%	+490	+382	+107
Dama wins	2.0%	+87	+173	-86
Deal-ins to riichi	8.3%	-684	-360	-324
Deal-ins to open hands	4.0%	-133	-203	+70
Deal-ins to dama	3.2%	-160	-101	-60
Others' tsumo	26.5%	-727	-752	+25
Other (exhaustive draws, etc.)	36.8%	-65	-60	-6
Total (per hand)		-423

2022-23 (23 games · skill estimate -0.8pt/game)

Style

Average win value6,397
Riichi rate22.0%
Deal-in rate11.2%
Win rate20.9%
First riichi rate77.2%
Average riichi turn9.21
Call rate31.9%
Tenpai rate at exhaustive draws39.9%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)39.7%
Push rate vs riichi (2+ shanten)27.3%
Tile efficiency match rate71.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.0%
Dama rate10.2%

Where the points came from

Own wins+46.4
Deal-ins-22.1
Others' tsumo-25.7
Ron between others-3.4
Exhaustive draws-0.9

Change in expected points per game. Total -5.6pt/game (23 games).

As a table

Hand result	Hands	Total	Per game
Own wins	68	+1068.3	+46.4
Deal-ins	35	-507.5	-22.1
Others' tsumo	80	-591.2	-25.7
Ron between others	66	-77.1	-3.4
Exhaustive draws	43	-21.6	-0.9

Luck

Points from luck (/game)+11.3
Draw luck+0.4%
Starting hand (shanten)+0.09
Dora and red fives dealt+0.01
Ura-dora luck-0.04
Ippatsu rate+10.6%
Avoiding a chase riichi (/first riichi)-4.1%
Mangan+ tsumo against dealer rate10.0%

Every number for 2022-23

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.74	2.53 (2.33 to 2.73)	14%	12	23 games
Points per game	-5.6	-0.8 (-9.0 to 7.4)	15%	27	23 games
Points per game, luck removed	-16.9	-3.2 (-10.8 to 4.4)	19%	1	23 games
1st-place rate	21.7%	24.6% (16.5% to 32.6%)	15%	46	23 games
4th-place rate	26.1%	25.1% (16.9% to 33.2%)	16%	43	23 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	23.3%	20.9% (18.4% to 23.3%)	27%	90	292 hands
Deal-in rate	12.0%	11.2% (9.3% to 13.0%)	24%	20	292 hands
Riichi rate	20.2%	22.0% (19.5% to 24.6%)	28%	22	292 hands
Call rate	33.9%	31.9% (28.2% to 35.5%)	82%	100	292 hands
First riichi rate	86.4%	77.2% (72.7% to 81.7%)	12%	100	59 riichi
Average riichi turn	8.86	9.21 (8.78 to 9.65)	26%	87	59 riichi
Average win value	5,694	6,397 (5,858 to 6,936)	22%	4	68 wins
Average deal-in value	5,591	5,622 (5,092 to 6,152)	11%	46	35 deal-ins
Win efficiency	1,483	1,474 (1,370 to 1,579)	3%	46	292 hands
Deal-in loss	698	645 (539 to 752)	11%	30	292 hands
Net efficiency	785	829 (609 to 1,048)	13%	39	292 hands
Push rate vs riichi (1-shanten)	34.2%	39.7% (32.3% to 47.1%)	17%	43	38 hands facing riichi
Push rate vs riichi (2+ shanten)	30.2%	27.3% (20.7% to 33.9%)	37%	78	53 hands facing riichi
Tenpai rate after the first call	25.3%	25.4% (19.7% to 31.1%)	62%	27	99 first calls
Average win turn	11.70	12.37 (12.22 to 12.52)	2%	100	68 wins
Tenpai rate at exhaustive draws	39.5%	39.9% (32.8% to 47.1%)	19%	62	43 exhaustive draws
Staying in vs riichi	13.5%	14.0% (12.1% to 15.9%)	7%	55	148 hands facing an opponent’s riichi
Tile efficiency match rate	71.0%	71.4% (69.6% to 73.1%)	82%	23	1,504 discards
Average ukeire loss (tiles)	1.13	1.11 (1.00 to 1.21)	71%	55	1,458 discards
Breaking shape for value	2.0%	2.0% (1.5% to 2.5%)	61%	55	1,504 discards
Tenpai turn (luck-adjusted)	8.23	8.17 (8.04 to 8.30)	4%	58	60 tenpai hands
Immediate riichi rate	67.0%	70.0% (63.7% to 76.3%)	35%	27	60 tenpai hands
Dama rate	7.4%	10.2% (5.2% to 15.2%)	52%	14	68 wins
Riichi income	3,285	2,714 (1,915 to 3,513)	14%	71	59 riichi
Riichi win rate	55.9%	48.5% (41.9% to 55.1%)	25%	94	59 riichi
Riichi deal-in rate A	15.3%	14.3% (12.4% to 16.2%)	2%	17	59 riichi
Riichi deal-in rate B	11.9%	11.1% (8.5% to 13.7%)	6%	23	59 riichi
Riichi good-wait rate	49.2%	49.6% (43.7% to 55.6%)	16%	49	59 riichi
Riichi exhaustive draw rate	8.5%	17.1% (12.2% to 22.1%)	20%	1	59 riichi
Call income	133	436 (26.53 to 846)	14%	4	99 calls
Win rate after calling	30.3%	29.9% (25.2% to 34.7%)	28%	49	99 calls
Deal-in rate after calling	10.1%	11.1% (7.8% to 14.5%)	28%	58	99 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.09	84	292 hands
Dora and red fives dealt	+0.01	46	292 hands
Draw luck	+0.4%	78	3,356 tile draws
Ura-dora luck	-0.04	33	33 riichi wins
Ippatsu rate	+10.6%	87	33 riichi wins
Avoiding a chase riichi (/first riichi)	-4.1%	11	51 first riichi
Mangan+ tsumo against dealer rate	10.0%	65	80 tsumo against
Points from luck (/game)	+11.3	100	23 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.3%	+933	+919	+14
Wins with calls	10.3%	+468	+382	+86
Dama wins	1.7%	+82	+173	-91
Deal-ins to riichi	6.2%	-404	-360	-44
Deal-ins to open hands	3.8%	-209	-203	-6
Deal-ins to dama	2.1%	-109	-101	-8
Others' tsumo	27.4%	-734	-752	+19
Other (exhaustive draws, etc.)	37.3%	-41	-60	+19
Total (per hand)		-14

2021-22 (29 games · skill estimate 0.9pt/game)

Style

Average win value6,471
Riichi rate21.1%
Deal-in rate10.5%
Win rate20.8%
First riichi rate76.2%
Average riichi turn9.32
Call rate33.3%
Tenpai rate at exhaustive draws38.2%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)39.1%
Push rate vs riichi (2+ shanten)23.8%
Tile efficiency match rate73.3%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate72.3%
Dama rate10.7%

Where the points came from

Own wins+52.5
Deal-ins-19.4
Others' tsumo-26.8
Ron between others-0.7
Exhaustive draws-0.2

Change in expected points per game. Total +5.5pt/game (29 games).

As a table

Hand result	Hands	Total	Per game
Own wins	80	+1523.9	+52.5
Deal-ins	33	-561.3	-19.4
Others' tsumo	97	-776.6	-26.8
Ron between others	60	-19.8	-0.7
Exhaustive draws	82	-5.9	-0.2

Luck

Points from luck (/game)-2.2
Draw luck-0.6%
Starting hand (shanten)+0.03
Dora and red fives dealt+0.04
Ura-dora luck+0.01
Ippatsu rate+0.8%
Avoiding a chase riichi (/first riichi)+4.5%
Mangan+ tsumo against dealer rate8.2%

Every number for 2021-22

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.38	2.48 (2.29 to 2.67)	17%	65	29 games
Points per game	5.3	0.9 (-6.8 to 8.7)	18%	71	29 games
Points per game, luck removed	7.6	1.7 (-5.4 to 8.8)	23%	84	29 games
1st-place rate	24.1%	24.9% (17.3% to 32.5%)	18%	46	29 games
4th-place rate	17.2%	23.4% (15.7% to 31.1%)	19%	84	29 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.7%	20.8% (18.6% to 23.1%)	31%	94	352 hands
Deal-in rate	9.4%	10.5% (8.8% to 12.2%)	27%	87	352 hands
Riichi rate	17.6%	21.1% (18.7% to 23.5%)	32%	1	352 hands
Call rate	35.2%	33.3% (29.9% to 36.7%)	84%	100	352 hands
First riichi rate	77.4%	76.2% (71.7% to 80.6%)	12%	52	62 riichi
Average riichi turn	9.29	9.32 (8.90 to 9.75)	27%	68	62 riichi
Average win value	6,104	6,471 (5,959 to 6,984)	24%	4	80 wins
Average deal-in value	5,267	5,590 (5,054 to 6,125)	10%	78	33 deal-ins
Win efficiency	1,565	1,478 (1,375 to 1,580)	4%	68	352 hands
Deal-in loss	517	623 (520 to 725)	13%	84	352 hands
Net efficiency	1,048	867 (657 to 1,078)	15%	78	352 hands
Push rate vs riichi (1-shanten)	33.9%	39.1% (32.7% to 45.6%)	25%	23	59 hands facing riichi
Push rate vs riichi (2+ shanten)	20.8%	23.8% (17.2% to 30.4%)	37%	36	53 hands facing riichi
Tenpai rate after the first call	25.8%	25.8% (20.5% to 31.1%)	67%	36	124 first calls
Average win turn	12.97	12.39 (12.24 to 12.54)	2%	1	80 wins
Tenpai rate at exhaustive draws	34.1%	38.2% (32.4% to 44.0%)	31%	14	82 exhaustive draws
Staying in vs riichi	15.0%	14.1% (12.3% to 16.0%)	8%	78	180 hands facing an opponent’s riichi
Tile efficiency match rate	73.4%	73.3% (71.8% to 74.8%)	85%	78	1,981 discards
Average ukeire loss (tiles)	0.99	1.00 (0.91 to 1.10)	76%	17	1,921 discards
Breaking shape for value	1.2%	1.4% (1.0% to 1.9%)	67%	4	1,981 discards
Tenpai turn (luck-adjusted)	7.87	8.16 (8.03 to 8.29)	3%	7	57 tenpai hands
Immediate riichi rate	73.6%	72.3% (65.8% to 78.7%)	34%	66	57 tenpai hands
Dama rate	8.8%	10.7% (6.0% to 15.5%)	56%	14	80 wins
Riichi income	3,837	2,797 (2,007 to 3,587)	14%	81	62 riichi
Riichi win rate	54.8%	48.3% (41.8% to 54.8%)	26%	81	62 riichi
Riichi deal-in rate A	9.7%	14.2% (12.3% to 16.1%)	2%	82	62 riichi
Riichi deal-in rate B	6.5%	10.7% (8.2% to 13.3%)	6%	79	62 riichi
Riichi good-wait rate	58.1%	51.2% (45.3% to 57.0%)	17%	94	62 riichi
Riichi exhaustive draw rate	16.1%	18.6% (13.8% to 23.5%)	20%	30	62 riichi
Call income	382	469 (80.61 to 856)	17%	39	124 calls
Win rate after calling	31.5%	30.3% (25.9% to 34.8%)	33%	71	124 calls
Deal-in rate after calling	8.9%	10.7% (7.6% to 13.7%)	33%	81	124 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.03	68	352 hands
Dora and red fives dealt	+0.04	74	352 hands
Draw luck	-0.6%	27	4,298 tile draws
Ura-dora luck	+0.01	55	34 riichi wins
Ippatsu rate	+0.8%	58	34 riichi wins
Avoiding a chase riichi (/first riichi)	+4.5%	78	48 first riichi
Mangan+ tsumo against dealer rate	8.2%	90	97 tsumo against
Points from luck (/game)	-2.2	39	29 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.7%	+860	+919	-59
Wins with calls	11.1%	+499	+382	+117
Dama wins	2.0%	+206	+173	+33
Deal-ins to riichi	3.7%	-214	-360	+146
Deal-ins to open hands	4.0%	-194	-203	+9
Deal-ins to dama	1.7%	-120	-101	-19
Others' tsumo	27.6%	-690	-752	+62
Other (exhaustive draws, etc.)	40.3%	-71	-60	-11
Total (per hand)		+276

2020-21 (31 games · skill estimate 2.0pt/game)

Style

Average win value6,384
Riichi rate22.3%
Deal-in rate10.5%
Win rate22.1%
First riichi rate77.2%
Average riichi turn9.20
Call rate31.3%
Tenpai rate at exhaustive draws36.9%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)38.7%
Push rate vs riichi (2+ shanten)22.9%
Tile efficiency match rate71.4%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate69.6%
Dama rate12.7%

Where the points came from

Own wins+55.9
Deal-ins-16.8
Others' tsumo-23.9
Ron between others-3.1
Exhaustive draws-1.3

Change in expected points per game. Total +10.6pt/game (31 games).

As a table

Hand result	Hands	Total	Per game
Own wins	97	+1731.5	+55.9
Deal-ins	34	-520.9	-16.8
Others' tsumo	86	-742.4	-23.9
Ron between others	78	-97.6	-3.1
Exhaustive draws	67	-41.5	-1.3

Luck

Points from luck (/game)+2.6
Draw luck-0.2%
Starting hand (shanten)-0.01
Dora and red fives dealt+0.03
Ura-dora luck-0.04
Ippatsu rate-0.5%
Avoiding a chase riichi (/first riichi)+8.4%
Mangan+ tsumo against dealer rate16.3%

Every number for 2020-21

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.19	2.44 (2.26 to 2.63)	18%	93	31 games
Points per game	10.9	2.0 (-5.6 to 9.7)	19%	93	31 games
Points per game, luck removed	8.3	2.0 (-4.9 to 8.9)	24%	90	31 games
1st-place rate	19.4%	23.9% (16.5% to 31.4%)	19%	27	31 games
4th-place rate	3.2%	20.5% (12.9% to 28.0%)	20%	100	31 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	26.8%	22.1% (19.9% to 24.4%)	31%	97	362 hands
Deal-in rate	9.4%	10.5% (8.8% to 12.2%)	28%	83	362 hands
Riichi rate	21.3%	22.3% (19.9% to 24.6%)	33%	42	362 hands
Call rate	32.9%	31.3% (28.0% to 34.7%)	85%	100	362 hands
First riichi rate	84.4%	77.2% (73.0% to 81.5%)	15%	100	77 riichi
Average riichi turn	8.90	9.20 (8.81 to 9.59)	31%	93	77 riichi
Average win value	5,856	6,384 (5,904 to 6,863)	28%	8	97 wins
Average deal-in value	4,806	5,541 (5,008 to 6,074)	10%	93	34 deal-ins
Win efficiency	1,758	1,486 (1,383 to 1,588)	4%	90	362 hands
Deal-in loss	469	616 (514 to 717)	14%	97	362 hands
Net efficiency	1,289	905 (696 to 1,115)	15%	97	362 hands
Push rate vs riichi (1-shanten)	32.8%	38.7% (32.5% to 44.9%)	27%	18	67 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	21.0%	22.6% (17.2% to 28.0%)	66%	8	119 first calls
Average win turn	13.22	12.40 (12.25 to 12.54)	2%	1	97 wins
Tenpai rate at exhaustive draws	28.4%	36.9% (30.7% to 43.1%)	27%	11	67 exhaustive draws
Staying in vs riichi	14.6%	14.1% (12.3% to 15.9%)	9%	73	198 hands facing an opponent’s riichi
Tile efficiency match rate	71.2%	71.4% (69.9% to 73.0%)	85%	39	1,934 discards
Average ukeire loss (tiles)	1.12	1.11 (1.02 to 1.20)	76%	49	1,883 discards
Breaking shape for value	1.9%	1.9% (1.5% to 2.3%)	67%	32	1,934 discards
Tenpai turn (luck-adjusted)	8.10	8.16 (8.04 to 8.29)	5%	32	83 tenpai hands
Immediate riichi rate	66.9%	69.6% (64.0% to 75.2%)	43%	21	83 tenpai hands
Dama rate	12.4%	12.7% (8.3% to 17.2%)	61%	28	97 wins
Riichi income	4,669	2,974 (2,224 to 3,724)	17%	100	77 riichi
Riichi win rate	67.5%	52.6% (46.6% to 58.6%)	31%	100	77 riichi
Riichi deal-in rate A	10.4%	14.2% (12.3% to 16.1%)	3%	93	77 riichi
Riichi deal-in rate B	7.8%	10.8% (8.3% to 13.3%)	8%	86	77 riichi
Riichi good-wait rate	45.5%	48.9% (43.3% to 54.4%)	20%	21	77 riichi
Riichi exhaustive draw rate	10.4%	17.1% (12.6% to 21.7%)	24%	4	77 riichi
Call income	-146	381 (-10.99 to 773)	17%	1	119 calls
Win rate after calling	27.7%	29.1% (24.7% to 33.6%)	32%	35	119 calls
Deal-in rate after calling	12.6%	11.9% (8.7% to 15.0%)	32%	35	119 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.01	39	362 hands
Dora and red fives dealt	+0.03	76	362 hands
Draw luck	-0.2%	56	4,512 tile draws
Ura-dora luck	-0.04	49	52 riichi wins
Ippatsu rate	-0.5%	42	52 riichi wins
Avoiding a chase riichi (/first riichi)	+8.4%	86	65 first riichi
Mangan+ tsumo against dealer rate	16.3%	18	86 tsumo against
Points from luck (/game)	+2.6	80	31 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	14.4%	+1,141	+919	+222
Wins with calls	9.1%	+396	+382	+14
Dama wins	3.3%	+221	+173	+48
Deal-ins to riichi	4.1%	-243	-360	+117
Deal-ins to open hands	4.7%	-214	-203	-10
Deal-ins to dama	0.6%	-29	-101	+72
Others' tsumo	23.8%	-678	-752	+74
Other (exhaustive draws, etc.)	40.1%	-98	-60	-38
Total (per hand)		+496

2019-20 (30 games · skill estimate 1.3pt/game)

Style

Average win value6,339
Riichi rate21.3%
Deal-in rate10.3%
Win rate20.9%
First riichi rate75.7%
Average riichi turn9.32
Call rate32.0%
Tenpai rate at exhaustive draws41.7%
Staying in vs riichi14.5%
Push rate vs riichi (1-shanten)39.5%
Push rate vs riichi (2+ shanten)24.8%
Tile efficiency match rate73.7%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.7%
Dama rate13.5%

Where the points came from

Own wins+49.4
Deal-ins-19.2
Others' tsumo-22.0
Ron between others-1.6
Exhaustive draws+0.7

Change in expected points per game. Total +7.3pt/game (30 games).

As a table

Hand result	Hands	Total	Per game
Own wins	81	+1483.2	+49.4
Deal-ins	30	-576.6	-19.2
Others' tsumo	89	-660.3	-22.0
Ron between others	73	-49.4	-1.6
Exhaustive draws	77	+22.0	+0.7

Luck

Points from luck (/game)-3.6
Draw luck+0.2%
Starting hand (shanten)-0.06
Dora and red fives dealt-0.03
Ura-dora luck+0.25
Ippatsu rate-6.4%
Avoiding a chase riichi (/first riichi)+4.1%
Mangan+ tsumo against dealer rate15.7%

Every number for 2019-20

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.23	2.45 (2.26 to 2.64)	17%	89	30 games
Points per game	7.0	1.3 (-6.4 to 9.0)	18%	79	30 games
Points per game, luck removed	10.6	2.5 (-4.5 to 9.5)	23%	89	30 games
1st-place rate	30.0%	26.0% (18.5% to 33.5%)	19%	79	30 games
4th-place rate	6.7%	21.3% (13.7% to 28.9%)	20%	100	30 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	23.1%	20.9% (18.7% to 23.2%)	31%	93	350 hands
Deal-in rate	8.6%	10.3% (8.6% to 12.0%)	27%	96	350 hands
Riichi rate	18.3%	21.3% (18.9% to 23.7%)	32%	12	350 hands
Call rate	33.7%	32.0% (28.6% to 35.4%)	84%	100	350 hands
First riichi rate	73.4%	75.7% (71.2% to 80.1%)	12%	22	64 riichi
Average riichi turn	9.27	9.32 (8.90 to 9.74)	27%	58	64 riichi
Average win value	5,570	6,339 (5,829 to 6,849)	25%	5	81 wins
Average deal-in value	6,383	5,696 (5,151 to 6,240)	9%	22	30 deal-ins
Win efficiency	1,467	1,474 (1,371 to 1,576)	4%	61	350 hands
Deal-in loss	574	630 (528 to 733)	13%	72	350 hands
Net efficiency	893	844 (633 to 1,055)	15%	72	350 hands
Push rate vs riichi (1-shanten)	35.1%	39.5% (32.9% to 46.0%)	24%	12	57 hands facing riichi
Push rate vs riichi (2+ shanten)	23.5%	24.8% (18.1% to 31.5%)	36%	50	51 hands facing riichi
Tenpai rate after the first call	25.4%	25.5% (20.1% to 30.9%)	66%	33	118 first calls
Average win turn	12.07	12.37 (12.23 to 12.52)	2%	68	81 wins
Tenpai rate at exhaustive draws	45.5%	41.7% (35.8% to 47.6%)	30%	82	77 exhaustive draws
Staying in vs riichi	19.2%	14.5% (12.6% to 16.3%)	8%	82	177 hands facing an opponent’s riichi
Tile efficiency match rate	73.9%	73.7% (72.2% to 75.3%)	85%	93	1,929 discards
Average ukeire loss (tiles)	1.04	1.05 (0.95 to 1.14)	76%	22	1,880 discards
Breaking shape for value	2.2%	2.1% (1.7% to 2.6%)	67%	61	1,929 discards
Tenpai turn (luck-adjusted)	8.29	8.17 (8.04 to 8.30)	4%	68	70 tenpai hands
Immediate riichi rate	69.3%	70.7% (64.7% to 76.7%)	39%	36	70 tenpai hands
Dama rate	13.6%	13.5% (8.7% to 18.2%)	57%	29	81 wins
Riichi income	2,264	2,570 (1,786 to 3,355)	15%	36	64 riichi
Riichi win rate	46.9%	46.2% (39.8% to 52.7%)	27%	54	64 riichi
Riichi deal-in rate A	14.1%	14.3% (12.4% to 16.2%)	2%	43	64 riichi
Riichi deal-in rate B	12.5%	11.1% (8.6% to 13.7%)	7%	26	64 riichi
Riichi good-wait rate	54.7%	50.6% (44.8% to 56.4%)	18%	72	64 riichi
Riichi exhaustive draw rate	18.8%	19.2% (14.3% to 24.0%)	21%	40	64 riichi
Call income	790	537 (144 to 930)	17%	79	118 calls
Win rate after calling	33.9%	31.1% (26.6% to 35.6%)	32%	89	118 calls
Deal-in rate after calling	5.9%	9.8% (6.6% to 12.9%)	32%	100	118 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.06	40	350 hands
Dora and red fives dealt	-0.03	19	350 hands
Draw luck	+0.2%	54	4,266 tile draws
Ura-dora luck	+0.25	96	30 riichi wins
Ippatsu rate	-6.4%	15	30 riichi wins
Avoiding a chase riichi (/first riichi)	+4.1%	72	47 first riichi
Mangan+ tsumo against dealer rate	15.7%	19	89 tsumo against
Points from luck (/game)	-3.6	33	30 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	8.6%	+719	+919	-200
Wins with calls	11.4%	+521	+382	+138
Dama wins	3.1%	+227	+173	+54
Deal-ins to riichi	3.7%	-279	-360	+81
Deal-ins to open hands	3.1%	-162	-203	+41
Deal-ins to dama	1.7%	-156	-101	-55
Others' tsumo	25.4%	-716	-752	+37
Other (exhaustive draws, etc.)	42.9%	-26	-60	+34
Total (per hand)		+129

2018-19 (27 games · skill estimate -0.7pt/game)

Style

Average win value6,619
Riichi rate22.4%
Deal-in rate10.6%
Win rate20.9%
First riichi rate76.8%
Average riichi turn9.36
Call rate28.3%
Tenpai rate at exhaustive draws37.5%
Staying in vs riichi13.9%
Push rate vs riichi (1-shanten)40.6%
Push rate vs riichi (2+ shanten)23.9%
Tile efficiency match rate72.1%
Tenpai turn (luck-adjusted)8.18
Immediate riichi rate70.3%
Dama rate12.4%

Where the points came from

Own wins+52.0
Deal-ins-23.2
Others' tsumo-31.7
Ron between others-1.6
Exhaustive draws+0.3

Change in expected points per game. Total -4.2pt/game (27 games).

As a table

Hand result	Hands	Total	Per game
Own wins	77	+1403.2	+52.0
Deal-ins	32	-625.8	-23.2
Others' tsumo	108	-856.9	-31.7
Ron between others	59	-43.0	-1.6
Exhaustive draws	55	+8.3	+0.3

Luck

Points from luck (/game)+1.7
Draw luck+0.7%
Starting hand (shanten)+0.01
Dora and red fives dealt-0.01
Ura-dora luck+0.23
Ippatsu rate-1.8%
Avoiding a chase riichi (/first riichi)+8.4%
Mangan+ tsumo against dealer rate11.1%

Every number for 2018-19

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.59	2.51 (2.32 to 2.71)	16%	31	27 games
Points per game	-4.3	-0.7 (-8.6 to 7.2)	17%	31	27 games
Points per game, luck removed	-6.0	-1.3 (-8.5 to 5.9)	22%	36	27 games
1st-place rate	14.8%	23.3% (15.6% to 31.0%)	17%	6	27 games
4th-place rate	18.5%	23.7% (15.9% to 31.6%)	18%	75	27 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	23.3%	20.9% (18.6% to 23.3%)	29%	95	331 hands
Deal-in rate	9.7%	10.6% (8.8% to 12.4%)	26%	80	331 hands
Riichi rate	21.8%	22.4% (20.0% to 24.9%)	31%	41	331 hands
Call rate	29.3%	28.3% (24.8% to 31.7%)	83%	90	331 hands
First riichi rate	81.9%	76.8% (72.5% to 81.2%)	14%	85	72 riichi
Average riichi turn	9.42	9.36 (8.96 to 9.76)	30%	80	72 riichi
Average win value	6,710	6,619 (6,100 to 7,137)	24%	41	77 wins
Average deal-in value	7,266	5,787 (5,248 to 6,325)	10%	1	32 deal-ins
Win efficiency	1,730	1,484 (1,380 to 1,587)	4%	90	331 hands
Deal-in loss	717	649 (545 to 752)	13%	41	331 hands
Net efficiency	1,013	861 (647 to 1,074)	14%	85	331 hands
Push rate vs riichi (1-shanten)	39.6%	40.6% (33.7% to 47.5%)	21%	46	48 hands facing riichi
Push rate vs riichi (2+ shanten)	20.8%	23.9% (17.1% to 30.8%)	35%	36	48 hands facing riichi
Tenpai rate after the first call	15.5%	19.4% (13.7% to 25.2%)	61%	1	97 first calls
Average win turn	12.76	12.39 (12.24 to 12.53)	2%	31	77 wins
Tenpai rate at exhaustive draws	29.1%	37.5% (30.8% to 44.1%)	23%	16	55 exhaustive draws
Staying in vs riichi	12.1%	13.9% (12.0% to 15.8%)	7%	21	157 hands facing an opponent’s riichi
Tile efficiency match rate	71.9%	72.1% (70.5% to 73.6%)	85%	41	1,838 discards
Average ukeire loss (tiles)	1.14	1.12 (1.03 to 1.22)	75%	70	1,778 discards
Breaking shape for value	1.7%	1.8% (1.4% to 2.3%)	66%	21	1,838 discards
Tenpai turn (luck-adjusted)	8.36	8.18 (8.05 to 8.30)	4%	80	74 tenpai hands
Immediate riichi rate	68.4%	70.3% (64.5% to 76.2%)	40%	41	74 tenpai hands
Dama rate	11.7%	12.4% (7.6% to 17.3%)	55%	11	77 wins
Riichi income	3,788	2,812 (2,049 to 3,575)	16%	95	72 riichi
Riichi win rate	54.2%	48.4% (42.2% to 54.6%)	29%	90	72 riichi
Riichi deal-in rate A	12.5%	14.3% (12.4% to 16.2%)	3%	53	72 riichi
Riichi deal-in rate B	12.5%	11.1% (8.6% to 13.7%)	7%	31	72 riichi
Riichi good-wait rate	54.2%	50.6% (45.0% to 56.2%)	19%	80	72 riichi
Riichi exhaustive draw rate	13.9%	18.0% (13.4% to 22.7%)	23%	16	72 riichi
Call income	154	440 (28.31 to 851)	14%	41	97 calls
Win rate after calling	29.9%	29.8% (25.0% to 34.7%)	27%	46	97 calls
Deal-in rate after calling	7.2%	10.3% (7.0% to 13.7%)	27%	90	97 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.01	80	331 hands
Dora and red fives dealt	-0.01	50	331 hands
Draw luck	+0.7%	80	4,021 tile draws
Ura-dora luck	+0.23	90	39 riichi wins
Ippatsu rate	-1.8%	50	39 riichi wins
Avoiding a chase riichi (/first riichi)	+8.4%	100	59 first riichi
Mangan+ tsumo against dealer rate	11.1%	60	108 tsumo against
Points from luck (/game)	+1.7	65	27 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.8%	+1,122	+919	+203
Wins with calls	8.8%	+440	+382	+57
Dama wins	2.7%	+168	+173	-5
Deal-ins to riichi	3.0%	-338	-360	+22
Deal-ins to open hands	3.3%	-152	-203	+51
Deal-ins to dama	3.3%	-254	-101	-153
Others' tsumo	32.6%	-948	-752	-196
Other (exhaustive draws, etc.)	34.4%	-73	-60	-13
Total (per hand)		-35

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.

Sho ShiratoriShibuya ABEMASIn common: Riichis rarely, Smaller hands, First riichi often
Takaharu OoiShibuya ABEMASIn common: Smaller hands, Early riichi, Riichis rarely
Hiroshi DaigoSEGA SAMMY PhoenixIn common: Early riichi, High win rate, Often noten at exhaustive draws

* 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.