Player · 281 career games · 2018-19–2026-27

Takaharu Ooi

Riichis fairly rarely. Stands out for being noten at draws, few deal-ins and smaller wins. Career record: +2.1pt per game, but allowing for luck the difference from average is not clear yet.

Few deal-ins
Early riichi
First riichi often

Actual / game

+2.1

281 career games

Skill estimate / game

+1.4

90% interval -2.2 to +5.1

Estimate, luck removed

+0.4

adjusted for starting hands, draws, ura-dora

Weight of the record

67%

share of the estimate from the record

Styleleague percentile, career

Average win value6,265
Riichi rate21.1%
Deal-in rate9.9%
Win rate21.1%
First riichi rate77.3%
Average riichi turn9.11
Call rate22.5%
Tenpai rate at exhaustive draws35.5%
Staying in vs riichi14.2%
Push rate vs riichi (1-shanten)38.0%
Push rate vs riichi (2+ shanten)21.3%
Tile efficiency match rate72.7%
Tenpai turn (luck-adjusted)8.15
Immediate riichi rate71.7%
Dama rate13.1%

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.

Placements281 career games, average placement 2.43

1st26.7%75×
2nd25.6%72×
3rd26.0%73×
4th21.7%61×

Riichi and callsbalance and outcome of hands with riichi or calls

Riichi income2,691
Riichi win rate48.9%
Riichi deal-in rate A13.9%
Riichi deal-in rate B10.4%
Riichi good-wait rate51.2%
Riichi exhaustive draw rate18.3%
Call income734
Win rate after calling34.9%
Deal-in rate after calling11.6%
Tenpai rate after the first call25.9%

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 efficiency884
Deal-in loss596
Average win turn12.35

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 game1.4
Points per game, luck removed0.4
Average placement2.45

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

Points from luck (/game)+1.5
Draw luck-0.0%
Starting hand (shanten)+0.01
Dora and red fives dealt+0.02
Ura-dora luck-0.05
Ippatsu rate-0.1%
Avoiding a chase riichi (/first riichi)-1.8%
Mangan+ tsumo against dealer rate12.5%

Where the points came fromchange in expected points, all stages

Own wins+47.6
Deal-ins-17.9
Others' tsumo-25.3
Ron between others-1.6
Exhaustive draws-0.8

Change in expected points per game. Total +2.1pt/game (281 games).

As a table

Hand result	Hands	Total	Per game
Own wins	739	+13382.1	+47.6
Deal-ins	333	-5025.0	-17.9
Others' tsumo	958	-7103.1	-25.3
Ron between others	729	-456.8	-1.6
Exhaustive draws	708	-213.7	-0.8

Hand balance breakdownpoints won or lost per hand, all stages

Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.3%	+861	+919	-58
Wins with calls	8.2%	+452	+382	+69
Dama wins	2.8%	+168	+173	-5
Deal-ins to riichi	4.4%	-315	-360	+45
Deal-ins to open hands	3.5%	-181	-203	+22
Deal-ins to dama	1.6%	-92	-101	+9
Others' tsumo	27.6%	-787	-752	-34
Other (exhaustive draws, etc.)	41.4%	-78	-60	-18
Total (per hand)		+28

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

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.43	2.45 (2.36 to 2.54)	66%	84	281 games
Points per game	2.1	1.4 (-2.2 to 5.1)	67%	80	281 games
Points per game, luck removed	0.6	0.4 (-2.8 to 3.7)	74%	56	281 games
1st-place rate	26.7%	26.2% (22.6% to 29.7%)	69%	66	281 games
4th-place rate	21.7%	22.7% (19.1% to 26.2%)	70%	92	281 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	21.3%	21.1% (20.1% to 22.1%)	81%	92	3,467 hands
Deal-in rate	9.6%	9.9% (9.1% to 10.7%)	79%	98	3,467 hands
Riichi rate	20.8%	21.1% (20.1% to 22.2%)	82%	13	3,467 hands
Call rate	22.5%	22.5% (21.3% to 23.6%)	98%	45	3,467 hands
First riichi rate	78.2%	77.3% (75.3% to 79.4%)	61%	88	720 riichi
Average riichi turn	9.05	9.11 (8.93 to 9.29)	81%	90	720 riichi
Average win value	6,156	6,265 (6,028 to 6,502)	75%	3	739 wins
Average deal-in value	5,672	5,651 (5,383 to 5,918)	53%	41	333 deal-ins
Win efficiency	1,480	1,476 (1,412 to 1,540)	29%	56	3,467 hands
Deal-in loss	568	596 (547 to 645)	60%	96	3,467 hands
Net efficiency	912	884 (784 to 984)	64%	88	3,467 hands
Push rate vs riichi (1-shanten)	37.1%	38.0% (35.1% to 40.9%)	76%	11	590 hands facing riichi
Push rate vs riichi (2+ shanten)	20.8%	21.3% (18.8% to 23.8%)	89%	13	746 hands facing riichi
Tenpai rate after the first call	25.9%	25.9% (23.4% to 28.4%)	93%	47	779 first calls
Average win turn	12.15	12.35 (12.24 to 12.45)	15%	98	739 wins
Tenpai rate at exhaustive draws	34.3%	35.5% (32.8% to 38.2%)	80%	1	708 exhaustive draws
Staying in vs riichi	14.3%	14.2% (13.2% to 15.1%)	48%	64	1,835 hands facing an opponent’s riichi
Tile efficiency match rate	72.7%	72.7% (72.2% to 73.3%)	98%	47	18,224 discards
Average ukeire loss (tiles)	1.05	1.05 (1.01 to 1.08)	97%	45	17,449 discards
Breaking shape for value	1.8%	1.8% (1.6% to 1.9%)	95%	19	18,224 discards
Tenpai turn (luck-adjusted)	8.11	8.15 (8.07 to 8.23)	30%	23	708 tenpai hands
Immediate riichi rate	71.8%	71.7% (69.2% to 74.3%)	86%	49	708 tenpai hands
Dama rate	13.1%	13.1% (11.2% to 15.1%)	92%	49	739 wins
Riichi income	2,726	2,691 (2,334 to 3,048)	66%	66	720 riichi
Riichi win rate	49.6%	48.9% (46.1% to 51.6%)	80%	94	720 riichi
Riichi deal-in rate A	12.5%	13.9% (12.6% to 15.2%)	22%	96	720 riichi
Riichi deal-in rate B	9.6%	10.4% (9.0% to 11.7%)	44%	92	720 riichi
Riichi good-wait rate	51.8%	51.2% (48.6% to 53.8%)	71%	82	720 riichi
Riichi exhaustive draw rate	17.9%	18.3% (16.2% to 20.3%)	75%	29	720 riichi
Call income	924	734 (523 to 945)	57%	100	779 calls
Win rate after calling	36.6%	34.9% (32.6% to 37.3%)	75%	100	779 calls
Deal-in rate after calling	11.7%	11.6% (10.0% to 13.3%)	75%	47	779 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.01	58	3,467 hands
Dora and red fives dealt	+0.02	84	3,467 hands
Draw luck	-0.0%	43	42,457 tile draws
Ura-dora luck	-0.05	9	357 riichi wins
Ippatsu rate	-0.1%	49	357 riichi wins
Avoiding a chase riichi (/first riichi)	-1.8%	29	563 first riichi
Mangan+ tsumo against dealer rate	12.5%	39	958 tsumo against
Points from luck (/game)	+1.5	84	281 games

By seasonRegular Season

2026-27 (15 games · skill estimate 0.5pt/game)

Style

Average win value6,505
Riichi rate22.6%
Deal-in rate11.0%
Win rate20.6%
First riichi rate75.5%
Average riichi turn9.30
Call rate24.8%
Tenpai rate at exhaustive draws38.2%
Staying in vs riichi14.3%
Push rate vs riichi (1-shanten)41.4%
Push rate vs riichi (2+ shanten)24.4%
Tile efficiency match rate71.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate69.0%
Dama rate13.7%

Where the points came from

Own wins+46.5
Deal-ins-17.6
Others' tsumo-18.0
Ron between others-3.7
Exhaustive draws-2.1

Change in expected points per game. Total +5.2pt/game (15 games).

As a table

Hand result	Hands	Total	Per game
Own wins	42	+697.6	+46.5
Deal-ins	21	-263.7	-17.6
Others' tsumo	45	-269.8	-18.0
Ron between others	33	-55.1	-3.7
Exhaustive draws	40	-31.5	-2.1

Luck

Points from luck (/game)+11.1
Draw luck+0.5%
Starting hand (shanten)+0.05
Dora and red fives dealt+0.06
Ura-dora luck-0.26
Ippatsu rate+8.0%
Avoiding a chase riichi (/first riichi)-10.4%
Mangan+ tsumo against dealer rate15.6%

Every number for 2026-27

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.47	2.49 (2.28 to 2.71)	9%	57	15 games
Points per game	5.5	0.5 (-8.4 to 9.5)	10%	73	15 games
Points per game, luck removed	-5.6	-0.7 (-9.1 to 7.7)	13%	30	15 games
1st-place rate	33.3%	25.9% (17.1% to 34.7%)	10%	80	15 games
4th-place rate	26.7%	25.1% (16.2% to 34.0%)	11%	41	15 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	23.2%	20.6% (17.8% to 23.4%)	19%	84	181 hands
Deal-in rate	11.6%	11.0% (8.9% to 13.1%)	16%	33	181 hands
Riichi rate	22.1%	22.6% (19.6% to 25.6%)	20%	36	181 hands
Call rate	25.4%	24.8% (20.4% to 29.2%)	73%	57	181 hands
First riichi rate	70.0%	75.5% (70.7% to 80.3%)	8%	25	40 riichi
Average riichi turn	9.13	9.30 (8.81 to 9.78)	19%	49	40 riichi
Average win value	6,005	6,505 (5,893 to 7,117)	14%	28	42 wins
Average deal-in value	4,862	5,575 (5,000 to 6,149)	7%	84	21 deal-ins
Win efficiency	1,640	1,478 (1,370 to 1,586)	2%	79	181 hands
Deal-in loss	587	635 (520 to 750)	7%	60	181 hands
Net efficiency	1,052	853 (614 to 1,093)	8%	79	181 hands
Push rate vs riichi (1-shanten)	45.8%	41.4% (33.2% to 49.6%)	12%	63	24 hands facing riichi
Push rate vs riichi (2+ shanten)	22.0%	24.4% (17.2% to 31.7%)	31%	33	41 hands facing riichi
Tenpai rate after the first call	17.4%	22.1% (14.8% to 29.5%)	43%	20	46 first calls
Average win turn	12.16	12.38 (12.23 to 12.53)	1%	68	42 wins
Tenpai rate at exhaustive draws	30.0%	38.2% (30.9% to 45.5%)	18%	12	40 exhaustive draws
Staying in vs riichi	20.2%	14.3% (12.3% to 16.4%)	4%	92	94 hands facing an opponent’s riichi
Tile efficiency match rate	70.8%	71.4% (69.3% to 73.4%)	74%	20	936 discards
Average ukeire loss (tiles)	1.10	1.08 (0.96 to 1.21)	60%	73	883 discards
Breaking shape for value	1.3%	1.7% (1.1% to 2.2%)	50%	14	936 discards
Tenpai turn (luck-adjusted)	8.28	8.17 (8.04 to 8.30)	2%	76	36 tenpai hands
Immediate riichi rate	60.7%	69.0% (61.4% to 76.5%)	24%	1	36 tenpai hands
Dama rate	14.3%	13.7% (7.8% to 19.6%)	40%	79	42 wins
Riichi income	2,268	2,588 (1,726 to 3,451)	10%	44	40 riichi
Riichi win rate	45.0%	45.8% (38.4% to 53.3%)	19%	59	40 riichi
Riichi deal-in rate A	12.5%	14.3% (12.3% to 16.2%)	2%	65	40 riichi
Riichi deal-in rate B	12.5%	11.1% (8.4% to 13.8%)	4%	29	40 riichi
Riichi good-wait rate	37.5%	48.3% (41.8% to 54.8%)	12%	6	40 riichi
Riichi exhaustive draw rate	12.5%	18.3% (12.9% to 23.7%)	14%	16	40 riichi
Call income	1,374	550 (79.86 to 1,021)	7%	92	46 calls
Win rate after calling	39.1%	31.2% (25.2% to 37.2%)	15%	89	46 calls
Deal-in rate after calling	10.9%	11.4% (7.2% to 15.6%)	15%	49	46 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.05	76	181 hands
Dora and red fives dealt	+0.06	81	181 hands
Draw luck	+0.5%	73	2,154 tile draws
Ura-dora luck	-0.26	1	18 riichi wins
Ippatsu rate	+8.0%	87	18 riichi wins
Avoiding a chase riichi (/first riichi)	-10.4%	12	28 first riichi
Mangan+ tsumo against dealer rate	15.6%	25	45 tsumo against
Points from luck (/game)	+11.1	92	15 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.9%	+907	+919	-12
Wins with calls	9.9%	+571	+382	+188
Dama wins	3.3%	+162	+173	-10
Deal-ins to riichi	6.1%	-415	-360	-55
Deal-ins to open hands	4.4%	-141	-203	+62
Deal-ins to dama	1.1%	-59	-101	+42
Others' tsumo	24.9%	-641	-752	+112
Other (exhaustive draws, etc.)	40.3%	-122	-60	-62
Total (per hand)		+262

2025-26 (39 games · skill estimate 0.7pt/game)

Style

Average win value6,480
Riichi rate20.8%
Deal-in rate9.8%
Win rate20.1%
First riichi rate76.9%
Average riichi turn9.17
Call rate24.2%
Tenpai rate at exhaustive draws35.1%
Staying in vs riichi13.4%
Push rate vs riichi (1-shanten)39.8%
Push rate vs riichi (2+ shanten)24.3%
Tile efficiency match rate74.3%
Tenpai turn (luck-adjusted)8.15
Immediate riichi rate69.6%
Dama rate9.0%

Where the points came from

Own wins+46.1
Deal-ins-12.6
Others' tsumo-26.4
Ron between others-1.0
Exhaustive draws-2.8

Change in expected points per game. Total +3.2pt/game (39 games).

As a table

Hand result	Hands	Total	Per game
Own wins	97	+1797.9	+46.1
Deal-ins	36	-492.4	-12.6
Others' tsumo	140	-1030.3	-26.4
Ron between others	119	-38.3	-1.0
Exhaustive draws	88	-110.6	-2.8

Luck

Points from luck (/game)-1.8
Draw luck-0.7%
Starting hand (shanten)-0.01
Dora and red fives dealt-0.02
Ura-dora luck+0.11
Ippatsu rate-2.0%
Avoiding a chase riichi (/first riichi)+6.8%
Mangan+ tsumo against dealer rate12.9%

Every number for 2025-26

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.36	2.47 (2.29 to 2.64)	21%	77	39 games
Points per game	3.2	0.7 (-6.4 to 7.8)	22%	70	39 games
Points per game, luck removed	5.0	1.4 (-5.0 to 7.8)	28%	80	39 games
1st-place rate	28.2%	25.8% (18.8% to 32.7%)	23%	62	39 games
4th-place rate	15.4%	22.6% (15.6% to 29.6%)	24%	97	39 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	20.2%	20.1% (18.0% to 22.1%)	38%	42	480 hands
Deal-in rate	7.5%	9.8% (8.2% to 11.3%)	34%	100	480 hands
Riichi rate	17.9%	20.8% (18.7% to 23.0%)	39%	1	480 hands
Call rate	24.4%	24.2% (21.2% to 27.2%)	88%	39	480 hands
First riichi rate	81.4%	76.9% (72.7% to 81.0%)	16%	95	86 riichi
Average riichi turn	8.85	9.17 (8.79 to 9.55)	34%	92	86 riichi
Average win value	6,200	6,480 (6,001 to 6,960)	28%	24	97 wins
Average deal-in value	5,556	5,618 (5,091 to 6,145)	11%	44	36 deal-ins
Win efficiency	1,385	1,469 (1,370 to 1,569)	5%	26	480 hands
Deal-in loss	440	605 (510 to 699)	17%	95	480 hands
Net efficiency	944	856 (662 to 1,051)	19%	64	480 hands
Push rate vs riichi (1-shanten)	37.8%	39.8% (34.2% to 45.4%)	33%	26	90 hands facing riichi
Push rate vs riichi (2+ shanten)	23.2%	24.3% (18.9% to 29.7%)	51%	31	95 hands facing riichi
Tenpai rate after the first call	19.7%	21.7% (16.3% to 27.1%)	65%	31	117 first calls
Average win turn	12.15	12.37 (12.23 to 12.52)	2%	67	97 wins
Tenpai rate at exhaustive draws	25.0%	35.1% (29.5% to 40.7%)	33%	1	88 exhaustive draws
Staying in vs riichi	8.2%	13.4% (11.7% to 15.2%)	11%	1	255 hands facing an opponent’s riichi
Tile efficiency match rate	74.5%	74.3% (72.9% to 75.7%)	88%	54	2,358 discards
Average ukeire loss (tiles)	0.89	0.93 (0.84 to 1.01)	79%	26	2,235 discards
Breaking shape for value	1.1%	1.4% (1.0% to 1.8%)	71%	1	2,358 discards
Tenpai turn (luck-adjusted)	7.89	8.15 (8.03 to 8.28)	5%	9	87 tenpai hands
Immediate riichi rate	67.1%	69.6% (64.1% to 75.2%)	44%	24	87 tenpai hands
Dama rate	6.2%	9.0% (4.5% to 13.5%)	61%	11	97 wins
Riichi income	3,534	2,794 (2,066 to 3,522)	19%	82	86 riichi
Riichi win rate	52.3%	48.1% (42.3% to 53.9%)	33%	87	86 riichi
Riichi deal-in rate A	7.0%	14.1% (12.2% to 15.9%)	3%	100	86 riichi
Riichi deal-in rate B	5.8%	10.6% (8.1% to 13.1%)	9%	100	86 riichi
Riichi good-wait rate	44.2%	48.5% (43.2% to 53.8%)	22%	24	86 riichi
Riichi exhaustive draw rate	18.6%	19.1% (14.7% to 23.5%)	26%	67	86 riichi
Call income	1,208	605 (211 to 999)	16%	100	117 calls
Win rate after calling	39.3%	32.8% (28.3% to 37.3%)	31%	97	117 calls
Deal-in rate after calling	10.3%	11.1% (8.0% to 14.3%)	31%	67	117 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.01	37	480 hands
Dora and red fives dealt	-0.02	47	480 hands
Draw luck	-0.7%	11	5,714 tile draws
Ura-dora luck	+0.11	70	45 riichi wins
Ippatsu rate	-2.0%	44	45 riichi wins
Avoiding a chase riichi (/first riichi)	+6.8%	90	70 first riichi
Mangan+ tsumo against dealer rate	12.9%	37	140 tsumo against
Points from luck (/game)	-1.8	26	39 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.4%	+828	+919	-91
Wins with calls	9.6%	+497	+382	+114
Dama wins	1.3%	+60	+173	-112
Deal-ins to riichi	3.1%	-228	-360	+132
Deal-ins to open hands	4.2%	-220	-203	-17
Deal-ins to dama	0.2%	-3	-101	+97
Others' tsumo	29.2%	-806	-752	-53
Other (exhaustive draws, etc.)	43.1%	-131	-60	-72
Total (per hand)		-3

2024-25 (19 games · skill estimate -1.6pt/game)

Style

Average win value6,481
Riichi rate21.4%
Deal-in rate11.2%
Win rate18.9%
First riichi rate75.9%
Average riichi turn9.26
Call rate21.5%
Tenpai rate at exhaustive draws40.0%
Staying in vs riichi13.8%
Push rate vs riichi (1-shanten)41.4%
Push rate vs riichi (2+ shanten)24.1%
Tile efficiency match rate74.1%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.9%
Dama rate14.7%

Where the points came from

Own wins+33.5
Deal-ins-17.9
Others' tsumo-26.8
Ron between others-1.4
Exhaustive draws-0.7

Change in expected points per game. Total -13.4pt/game (19 games).

As a table

Hand result	Hands	Total	Per game
Own wins	35	+635.7	+33.5
Deal-ins	29	-340.0	-17.9
Others' tsumo	68	-509.9	-26.8
Ron between others	50	-26.1	-1.4
Exhaustive draws	50	-13.6	-0.7

Luck

Points from luck (/game)-3.7
Draw luck-1.2%
Starting hand (shanten)+0.04
Dora and red fives dealt+0.02
Ura-dora luck-0.07
Ippatsu rate-5.5%
Avoiding a chase riichi (/first riichi)-14.6%
Mangan+ tsumo against dealer rate13.2%

Every number for 2024-25

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.84	2.54 (2.33 to 2.75)	12%	21	19 games
Points per game	-12.8	-1.6 (-10.1 to 7.0)	12%	18	19 games
Points per game, luck removed	-9.1	-1.5 (-9.4 to 6.5)	16%	26	19 games
1st-place rate	21.1%	24.5% (16.2% to 32.9%)	13%	39	19 games
4th-place rate	36.8%	26.5% (18.0% to 35.0%)	14%	21	19 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	15.1%	18.9% (16.3% to 21.5%)	23%	4	232 hands
Deal-in rate	12.5%	11.2% (9.3% to 13.2%)	20%	29	232 hands
Riichi rate	17.2%	21.4% (18.7% to 24.2%)	24%	1	232 hands
Call rate	21.1%	21.5% (17.5% to 25.5%)	78%	18	232 hands
First riichi rate	75.0%	75.9% (71.1% to 80.8%)	8%	58	40 riichi
Average riichi turn	8.95	9.26 (8.78 to 9.75)	19%	72	40 riichi
Average win value	5,706	6,481 (5,844 to 7,118)	12%	26	35 wins
Average deal-in value	4,217	5,499 (4,952 to 6,047)	9%	92	29 deal-ins
Win efficiency	967	1,461 (1,355 to 1,567)	3%	1	232 hands
Deal-in loss	554	631 (521 to 742)	9%	63	232 hands
Net efficiency	413	791 (561 to 1,021)	10%	21	232 hands
Push rate vs riichi (1-shanten)	43.9%	41.4% (34.2% to 48.6%)	18%	46	41 hands facing riichi
Push rate vs riichi (2+ shanten)	21.8%	24.1% (17.6% to 30.7%)	38%	24	55 hands facing riichi
Tenpai rate after the first call	28.6%	26.9% (19.7% to 34.2%)	44%	77	49 first calls
Average win turn	12.05	12.38 (12.22 to 12.53)	1%	63	35 wins
Tenpai rate at exhaustive draws	40.0%	40.0% (33.2% to 46.8%)	22%	41	50 exhaustive draws
Staying in vs riichi	9.3%	13.8% (11.8% to 15.7%)	6%	7	129 hands facing an opponent’s riichi
Tile efficiency match rate	74.4%	74.1% (72.3% to 75.9%)	79%	46	1,288 discards
Average ukeire loss (tiles)	0.90	0.95 (0.84 to 1.06)	68%	26	1,238 discards
Breaking shape for value	2.0%	2.0% (1.5% to 2.5%)	57%	43	1,288 discards
Tenpai turn (luck-adjusted)	8.30	8.17 (8.04 to 8.30)	2%	77	40 tenpai hands
Immediate riichi rate	68.8%	70.9% (63.6% to 78.2%)	26%	38	40 tenpai hands
Dama rate	17.1%	14.7% (8.4% to 21.0%)	36%	86	35 wins
Riichi income	2,010	2,563 (1,701 to 3,426)	10%	38	40 riichi
Riichi win rate	35.0%	44.0% (36.5% to 51.4%)	19%	15	40 riichi
Riichi deal-in rate A	10.0%	14.3% (12.3% to 16.2%)	2%	75	40 riichi
Riichi deal-in rate B	5.0%	10.8% (8.1% to 13.5%)	4%	80	40 riichi
Riichi good-wait rate	52.5%	50.1% (43.6% to 56.5%)	12%	66	40 riichi
Riichi exhaustive draw rate	27.5%	20.4% (15.0% to 25.9%)	14%	92	40 riichi
Call income	449	484 (17.53 to 950)	8%	55	49 calls
Win rate after calling	30.6%	29.9% (24.0% to 35.8%)	16%	43	49 calls
Deal-in rate after calling	20.4%	12.9% (8.8% to 17.1%)	16%	7	49 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.04	86	232 hands
Dora and red fives dealt	+0.02	89	232 hands
Draw luck	-1.2%	7	2,902 tile draws
Ura-dora luck	-0.07	32	14 riichi wins
Ippatsu rate	-5.5%	22	14 riichi wins
Avoiding a chase riichi (/first riichi)	-14.6%	1	30 first riichi
Mangan+ tsumo against dealer rate	13.2%	32	68 tsumo against
Points from luck (/game)	-3.7	21	19 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	6.0%	+482	+919	-437
Wins with calls	6.5%	+376	+382	-6
Dama wins	2.6%	+109	+173	-64
Deal-ins to riichi	4.7%	-220	-360	+140
Deal-ins to open hands	5.6%	-281	-203	-77
Deal-ins to dama	2.2%	-62	-101	+38
Others' tsumo	29.3%	-789	-752	-37
Other (exhaustive draws, etc.)	43.1%	-37	-60	+23
Total (per hand)		-422

2023-24 (22 games · skill estimate 0.2pt/game)

Style

Average win value6,554
Riichi rate22.4%
Deal-in rate10.4%
Win rate20.5%
First riichi rate76.6%
Average riichi turn9.27
Call rate21.4%
Tenpai rate at exhaustive draws37.2%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)39.5%
Push rate vs riichi (2+ shanten)22.5%
Tile efficiency match rate74.9%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate68.7%
Dama rate10.8%

Where the points came from

Own wins+51.3
Deal-ins-22.5
Others' tsumo-24.3
Ron between others-3.2
Exhaustive draws-0.2

Change in expected points per game. Total +1.0pt/game (22 games).

As a table

Hand result	Hands	Total	Per game
Own wins	61	+1127.7	+51.3
Deal-ins	24	-495.3	-22.5
Others' tsumo	74	-535.3	-24.3
Ron between others	66	-71.4	-3.2
Exhaustive draws	51	-3.4	-0.2

Luck

Points from luck (/game)+1.9
Draw luck+0.0%
Starting hand (shanten)+0.07
Dora and red fives dealt+0.04
Ura-dora luck-0.03
Ippatsu rate-0.4%
Avoiding a chase riichi (/first riichi)-8.0%
Mangan+ tsumo against dealer rate10.8%

Every number for 2023-24

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.45	2.49 (2.29 to 2.69)	13%	60	22 games
Points per game	1.4	0.2 (-8.1 to 8.5)	14%	66	22 games
Points per game, luck removed	-0.5	-0.1 (-7.8 to 7.6)	18%	49	22 games
1st-place rate	22.7%	24.7% (16.6% to 32.8%)	15%	45	22 games
4th-place rate	22.7%	24.6% (16.3% to 32.8%)	15%	60	22 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.1%	20.5% (18.1% to 23.0%)	26%	92	276 hands
Deal-in rate	8.7%	10.4% (8.5% to 12.3%)	23%	83	276 hands
Riichi rate	21.4%	22.4% (19.8% to 25.0%)	27%	29	276 hands
Call rate	21.0%	21.4% (17.6% to 25.1%)	81%	38	276 hands
First riichi rate	81.4%	76.6% (72.1% to 81.1%)	12%	86	59 riichi
Average riichi turn	9.07	9.27 (8.83 to 9.70)	26%	63	59 riichi
Average win value	6,405	6,554 (5,997 to 7,110)	20%	41	61 wins
Average deal-in value	7,367	5,757 (5,193 to 6,321)	8%	1	24 deal-ins
Win efficiency	1,613	1,478 (1,374 to 1,583)	3%	83	276 hands
Deal-in loss	663	641 (534 to 749)	11%	49	276 hands
Net efficiency	949	849 (627 to 1,071)	12%	75	276 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)	18.0%	22.5% (16.2% to 28.8%)	40%	9	61 hands facing riichi
Tenpai rate after the first call	27.6%	26.6% (19.8% to 33.4%)	48%	66	58 first calls
Average win turn	11.68	12.37 (12.22 to 12.52)	1%	92	61 wins
Tenpai rate at exhaustive draws	27.5%	37.2% (30.5% to 44.0%)	22%	7	51 exhaustive draws
Staying in vs riichi	14.1%	14.1% (12.1% to 16.0%)	7%	55	142 hands facing an opponent’s riichi
Tile efficiency match rate	75.4%	74.9% (73.2% to 76.7%)	81%	69	1,428 discards
Average ukeire loss (tiles)	0.97	1.00 (0.89 to 1.10)	70%	38	1,378 discards
Breaking shape for value	1.7%	1.8% (1.3% to 2.3%)	60%	35	1,428 discards
Tenpai turn (luck-adjusted)	7.89	8.16 (8.03 to 8.29)	3%	9	57 tenpai hands
Immediate riichi rate	63.1%	68.7% (62.3% to 75.2%)	34%	7	57 tenpai hands
Dama rate	8.2%	10.8% (5.6% to 16.0%)	50%	21	61 wins
Riichi income	2,422	2,595 (1,796 to 3,394)	14%	41	59 riichi
Riichi win rate	52.5%	47.7% (41.0% to 54.3%)	25%	83	59 riichi
Riichi deal-in rate A	15.3%	14.3% (12.4% to 16.2%)	2%	41	59 riichi
Riichi deal-in rate B	10.2%	11.0% (8.4% to 13.6%)	6%	58	59 riichi
Riichi good-wait rate	54.2%	50.5% (44.5% to 56.4%)	16%	66	59 riichi
Riichi exhaustive draw rate	8.5%	17.1% (12.2% to 22.1%)	20%	4	59 riichi
Call income	1,812	604 (150 to 1,058)	9%	100	58 calls
Win rate after calling	43.1%	32.3% (26.6% to 37.9%)	18%	100	58 calls
Deal-in rate after calling	6.9%	10.7% (6.7% to 14.6%)	18%	97	58 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.07	89	276 hands
Dora and red fives dealt	+0.04	92	276 hands
Draw luck	+0.0%	66	3,228 tile draws
Ura-dora luck	-0.03	43	31 riichi wins
Ippatsu rate	-0.4%	49	31 riichi wins
Avoiding a chase riichi (/first riichi)	-8.0%	9	48 first riichi
Mangan+ tsumo against dealer rate	10.8%	58	74 tsumo against
Points from luck (/game)	+1.9	63	22 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.2%	+932	+919	+13
Wins with calls	9.1%	+563	+382	+181
Dama wins	1.8%	+117	+173	-56
Deal-ins to riichi	4.7%	-418	-360	-58
Deal-ins to open hands	2.9%	-179	-203	+24
Deal-ins to dama	1.1%	-88	-101	+13
Others' tsumo	26.8%	-748	-752	+5
Other (exhaustive draws, etc.)	42.4%	-105	-60	-45
Total (per hand)		+75

2022-23 (24 games · skill estimate -0.6pt/game)

Style

Average win value6,266
Riichi rate21.8%
Deal-in rate10.8%
Win rate20.6%
First riichi rate76.6%
Average riichi turn9.20
Call rate22.1%
Tenpai rate at exhaustive draws37.6%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)38.5%
Push rate vs riichi (2+ shanten)23.3%
Tile efficiency match rate71.4%
Tenpai turn (luck-adjusted)8.15
Immediate riichi rate71.7%
Dama rate16.5%

Where the points came from

Own wins+41.7
Deal-ins-18.6
Others' tsumo-26.2
Ron between others-0.2
Exhaustive draws-0.7

Change in expected points per game. Total -4.1pt/game (24 games).

As a table

Hand result	Hands	Total	Per game
Own wins	67	+1000.3	+41.7
Deal-ins	31	-446.0	-18.6
Others' tsumo	95	-628.8	-26.2
Ron between others	59	-5.9	-0.2
Exhaustive draws	49	-17.3	-0.7

Luck

Points from luck (/game)-1.6
Draw luck-0.4%
Starting hand (shanten)+0.09
Dora and red fives dealt-0.01
Ura-dora luck-0.24
Ippatsu rate-7.2%
Avoiding a chase riichi (/first riichi)+4.5%
Mangan+ tsumo against dealer rate9.5%

Every number for 2022-23

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.50	2.50 (2.30 to 2.70)	14%	54	24 games
Points per game	-3.8	-0.6 (-8.7 to 7.6)	15%	43	24 games
Points per game, luck removed	-2.2	-0.4 (-7.9 to 7.1)	20%	39	24 games
1st-place rate	20.8%	24.4% (16.4% to 32.4%)	16%	35	24 games
4th-place rate	20.8%	24.2% (16.2% to 32.3%)	17%	73	24 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.3%	20.6% (18.2% to 23.0%)	28%	81	301 hands
Deal-in rate	10.3%	10.8% (9.0% to 12.6%)	24%	49	301 hands
Riichi rate	19.6%	21.8% (19.3% to 24.4%)	29%	11	301 hands
Call rate	21.9%	22.1% (18.5% to 25.7%)	82%	52	301 hands
First riichi rate	81.4%	76.6% (72.1% to 81.1%)	12%	87	59 riichi
Average riichi turn	8.80	9.20 (8.77 to 9.63)	26%	90	59 riichi
Average win value	5,069	6,266 (5,725 to 6,808)	21%	1	67 wins
Average deal-in value	5,300	5,595 (5,053 to 6,136)	10%	71	31 deal-ins
Win efficiency	1,292	1,468 (1,364 to 1,572)	3%	23	301 hands
Deal-in loss	578	632 (526 to 737)	12%	58	301 hands
Net efficiency	715	819 (601 to 1,038)	13%	27	301 hands
Push rate vs riichi (1-shanten)	30.0%	38.5% (31.7% to 45.3%)	22%	14	50 hands facing riichi
Push rate vs riichi (2+ shanten)	20.3%	23.3% (17.2% to 29.3%)	43%	14	69 hands facing riichi
Tenpai rate after the first call	21.2%	23.4% (16.8% to 29.9%)	52%	14	66 first calls
Average win turn	11.75	12.37 (12.22 to 12.52)	2%	97	67 wins
Tenpai rate at exhaustive draws	28.6%	37.6% (30.7% to 44.4%)	21%	7	49 exhaustive draws
Staying in vs riichi	13.8%	14.0% (12.2% to 15.9%)	7%	58	160 hands facing an opponent’s riichi
Tile efficiency match rate	71.1%	71.4% (69.7% to 73.1%)	82%	27	1,569 discards
Average ukeire loss (tiles)	1.15	1.13 (1.03 to 1.23)	72%	78	1,498 discards
Breaking shape for value	1.1%	1.5% (1.0% to 1.9%)	62%	1	1,569 discards
Tenpai turn (luck-adjusted)	7.82	8.15 (8.03 to 8.28)	4%	7	63 tenpai hands
Immediate riichi rate	71.8%	71.7% (65.5% to 77.9%)	36%	55	63 tenpai hands
Dama rate	19.4%	16.5% (11.4% to 21.6%)	52%	84	67 wins
Riichi income	2,685	2,631 (1,832 to 3,430)	14%	46	59 riichi
Riichi win rate	54.2%	48.1% (41.5% to 54.7%)	25%	90	59 riichi
Riichi deal-in rate A	11.9%	14.3% (12.4% to 16.2%)	2%	65	59 riichi
Riichi deal-in rate B	10.2%	11.0% (8.4% to 13.6%)	6%	39	59 riichi
Riichi good-wait rate	52.5%	50.2% (44.3% to 56.1%)	16%	68	59 riichi
Riichi exhaustive draw rate	11.9%	17.8% (12.9% to 22.7%)	20%	11	59 riichi
Call income	235	461 (17.15 to 906)	10%	23	66 calls
Win rate after calling	33.3%	30.5% (25.1% to 36.0%)	21%	65	66 calls
Deal-in rate after calling	16.7%	12.6% (8.8% to 16.4%)	20%	11	66 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.09	81	301 hands
Dora and red fives dealt	-0.01	33	301 hands
Draw luck	-0.4%	23	3,588 tile draws
Ura-dora luck	-0.24	7	32 riichi wins
Ippatsu rate	-7.2%	20	32 riichi wins
Avoiding a chase riichi (/first riichi)	+4.5%	81	48 first riichi
Mangan+ tsumo against dealer rate	9.5%	71	95 tsumo against
Points from luck (/game)	-1.6	33	24 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.6%	+741	+919	-178
Wins with calls	7.3%	+381	+382	-2
Dama wins	4.3%	+170	+173	-2
Deal-ins to riichi	4.3%	-304	-360	+56
Deal-ins to open hands	4.0%	-214	-203	-11
Deal-ins to dama	2.0%	-80	-101	+21
Others' tsumo	31.6%	-851	-752	-99
Other (exhaustive draws, etc.)	35.9%	-81	-60	-22
Total (per hand)		-238

2021-22 (25 games · skill estimate 1.5pt/game)

Style

Average win value6,500
Riichi rate22.1%
Deal-in rate9.9%
Win rate20.3%
First riichi rate76.7%
Average riichi turn9.38
Call rate21.8%
Tenpai rate at exhaustive draws40.7%
Staying in vs riichi14.2%
Push rate vs riichi (1-shanten)35.9%
Push rate vs riichi (2+ shanten)20.4%
Tile efficiency match rate72.2%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate72.0%
Dama rate12.2%

Where the points came from

Own wins+48.6
Deal-ins-11.2
Others' tsumo-27.7
Ron between others-0.9
Exhaustive draws+1.3

Change in expected points per game. Total +10.1pt/game (25 games).

As a table

Hand result	Hands	Total	Per game
Own wins	63	+1215.3	+48.6
Deal-ins	20	-280.5	-11.2
Others' tsumo	84	-692.1	-27.7
Ron between others	62	-21.4	-0.9
Exhaustive draws	68	+32.2	+1.3

Luck

Points from luck (/game)-1.2
Draw luck-0.5%
Starting hand (shanten)+0.07
Dora and red fives dealt-0.04
Ura-dora luck+0.00
Ippatsu rate+3.8%
Avoiding a chase riichi (/first riichi)+7.3%
Mangan+ tsumo against dealer rate17.9%

Every number for 2021-22

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.16	2.45 (2.25 to 2.64)	15%	94	25 games
Points per game	9.7	1.5 (-6.6 to 9.6)	16%	84	25 games
Points per game, luck removed	10.9	2.2 (-5.2 to 9.6)	20%	87	25 games
1st-place rate	24.0%	24.9% (17.0% to 32.8%)	16%	41	25 games
4th-place rate	4.0%	21.3% (13.3% to 29.3%)	17%	100	25 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	21.2%	20.3% (17.9% to 22.7%)	27%	65	297 hands
Deal-in rate	6.7%	9.9% (8.1% to 11.7%)	24%	94	297 hands
Riichi rate	20.5%	22.1% (19.6% to 24.7%)	29%	33	297 hands
Call rate	21.5%	21.8% (18.2% to 25.4%)	82%	55	297 hands
First riichi rate	82.0%	76.7% (72.2% to 81.2%)	12%	81	61 riichi
Average riichi turn	9.49	9.38 (8.95 to 9.80)	26%	52	61 riichi
Average win value	6,143	6,500 (5,948 to 7,051)	20%	7	63 wins
Average deal-in value	5,245	5,602 (5,023 to 6,180)	6%	62	20 deal-ins
Win efficiency	1,477	1,474 (1,370 to 1,578)	3%	52	297 hands
Deal-in loss	366	608 (502 to 713)	11%	94	297 hands
Net efficiency	1,110	871 (652 to 1,090)	13%	81	297 hands
Push rate vs riichi (1-shanten)	18.9%	35.9% (29.2% to 42.6%)	23%	1	53 hands facing riichi
Push rate vs riichi (2+ shanten)	12.3%	20.4% (14.0% to 26.9%)	39%	1	57 hands facing riichi
Tenpai rate after the first call	32.8%	29.3% (22.7% to 35.9%)	51%	78	64 first calls
Average win turn	12.39	12.38 (12.23 to 12.53)	2%	68	63 wins
Tenpai rate at exhaustive draws	42.6%	40.7% (34.6% to 46.9%)	27%	65	68 exhaustive draws
Staying in vs riichi	15.4%	14.2% (12.3% to 16.1%)	7%	81	149 hands facing an opponent’s riichi
Tile efficiency match rate	72.1%	72.2% (70.6% to 73.8%)	83%	49	1,693 discards
Average ukeire loss (tiles)	1.05	1.05 (0.95 to 1.15)	73%	43	1,634 discards
Breaking shape for value	1.7%	1.8% (1.3% to 2.2%)	64%	23	1,693 discards
Tenpai turn (luck-adjusted)	8.31	8.17 (8.04 to 8.30)	4%	55	62 tenpai hands
Immediate riichi rate	72.7%	72.0% (65.8% to 78.3%)	36%	58	62 tenpai hands
Dama rate	11.1%	12.2% (7.0% to 17.4%)	50%	27	63 wins
Riichi income	4,233	2,850 (2,057 to 3,643)	14%	90	61 riichi
Riichi win rate	55.7%	48.5% (42.0% to 55.1%)	26%	90	61 riichi
Riichi deal-in rate A	4.9%	14.1% (12.2% to 16.0%)	2%	100	61 riichi
Riichi deal-in rate B	3.3%	10.6% (8.0% to 13.1%)	6%	100	61 riichi
Riichi good-wait rate	57.4%	51.0% (45.2% to 56.9%)	17%	90	61 riichi
Riichi exhaustive draw rate	23.0%	20.0% (15.1% to 24.9%)	20%	68	61 riichi
Call income	903	527 (80.26 to 974)	10%	84	64 calls
Win rate after calling	34.4%	30.7% (25.2% to 36.2%)	20%	81	64 calls
Deal-in rate after calling	4.7%	10.2% (6.3% to 14.0%)	20%	97	64 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.07	87	297 hands
Dora and red fives dealt	-0.04	14	297 hands
Draw luck	-0.5%	33	3,767 tile draws
Ura-dora luck	+0.00	52	34 riichi wins
Ippatsu rate	+3.8%	74	34 riichi wins
Avoiding a chase riichi (/first riichi)	+7.3%	94	50 first riichi
Mangan+ tsumo against dealer rate	17.9%	4	84 tsumo against
Points from luck (/game)	-1.2	46	25 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.4%	+970	+919	+51
Wins with calls	7.4%	+333	+382	-49
Dama wins	2.4%	+173	+173	+0
Deal-ins to riichi	1.7%	-132	-360	+228
Deal-ins to open hands	2.7%	-87	-203	+116
Deal-ins to dama	2.4%	-154	-101	-53
Others' tsumo	28.3%	-832	-752	-80
Other (exhaustive draws, etc.)	43.8%	-12	-60	+48
Total (per hand)		+260

2020-21 (25 games · skill estimate 1.5pt/game)

Style

Average win value6,637
Riichi rate22.1%
Deal-in rate10.2%
Win rate20.9%
First riichi rate76.0%
Average riichi turn9.20
Call rate22.5%
Tenpai rate at exhaustive draws37.1%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)41.1%
Push rate vs riichi (2+ shanten)25.0%
Tile efficiency match rate71.3%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate71.2%
Dama rate14.2%

Where the points came from

Own wins+53.1
Deal-ins-13.4
Others' tsumo-27.1
Ron between others-1.6
Exhaustive draws-1.4

Change in expected points per game. Total +9.7pt/game (25 games).

As a table

Hand result	Hands	Total	Per game
Own wins	67	+1327.0	+53.1
Deal-ins	23	-334.6	-13.4
Others' tsumo	86	-676.4	-27.1
Ron between others	58	-39.7	-1.6
Exhaustive draws	52	-34.1	-1.4

Luck

Points from luck (/game)-1.3
Draw luck+0.5%
Starting hand (shanten)-0.02
Dora and red fives dealt+0.05
Ura-dora luck-0.03
Ippatsu rate+2.1%
Avoiding a chase riichi (/first riichi)+0.4%
Mangan+ tsumo against dealer rate10.5%

Every number for 2020-21

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.28	2.47 (2.27 to 2.66)	15%	83	25 games
Points per game	9.4	1.5 (-6.6 to 9.5)	16%	83	25 games
Points per game, luck removed	10.7	2.2 (-5.2 to 9.6)	20%	97	25 games
1st-place rate	28.0%	25.5% (17.7% to 33.4%)	16%	69	25 games
4th-place rate	24.0%	24.7% (16.8% to 32.7%)	17%	52	25 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	23.4%	20.9% (18.5% to 23.3%)	27%	90	286 hands
Deal-in rate	8.0%	10.2% (8.4% to 12.1%)	23%	100	286 hands
Riichi rate	20.3%	22.1% (19.5% to 24.6%)	28%	28	286 hands
Call rate	22.4%	22.5% (18.8% to 26.2%)	81%	59	286 hands
First riichi rate	75.9%	76.0% (71.5% to 80.5%)	11%	35	58 riichi
Average riichi turn	8.79	9.20 (8.76 to 9.63)	25%	97	58 riichi
Average win value	6,807	6,637 (6,095 to 7,178)	21%	56	67 wins
Average deal-in value	5,000	5,580 (5,013 to 6,148)	7%	76	23 deal-ins
Win efficiency	1,773	1,484 (1,379 to 1,588)	3%	86	286 hands
Deal-in loss	427	615 (509 to 722)	11%	100	286 hands
Net efficiency	1,346	900 (679 to 1,120)	13%	93	286 hands
Push rate vs riichi (1-shanten)	42.2%	41.1% (34.1% to 48.2%)	20%	54	45 hands facing riichi
Push rate vs riichi (2+ shanten)	24.3%	25.0% (19.0% to 31.0%)	44%	59	70 hands facing riichi
Tenpai rate after the first call	31.3%	28.5% (21.9% to 35.1%)	51%	69	64 first calls
Average win turn	12.50	12.38 (12.23 to 12.53)	2%	49	67 wins
Tenpai rate at exhaustive draws	26.9%	37.1% (30.3% to 43.8%)	22%	15	52 exhaustive draws
Staying in vs riichi	14.9%	14.1% (12.2% to 16.0%)	7%	76	154 hands facing an opponent’s riichi
Tile efficiency match rate	70.9%	71.3% (69.5% to 73.0%)	82%	32	1,494 discards
Average ukeire loss (tiles)	1.22	1.17 (1.07 to 1.28)	71%	76	1,424 discards
Breaking shape for value	1.8%	1.9% (1.4% to 2.4%)	61%	28	1,494 discards
Tenpai turn (luck-adjusted)	7.92	8.16 (8.03 to 8.29)	4%	8	62 tenpai hands
Immediate riichi rate	70.3%	71.2% (64.9% to 77.4%)	36%	39	62 tenpai hands
Dama rate	14.9%	14.2% (9.1% to 19.2%)	52%	56	67 wins
Riichi income	3,869	2,791 (1,989 to 3,593)	14%	90	58 riichi
Riichi win rate	55.2%	48.3% (41.6% to 54.9%)	25%	86	58 riichi
Riichi deal-in rate A	13.8%	14.3% (12.4% to 16.2%)	2%	76	58 riichi
Riichi deal-in rate B	12.1%	11.1% (8.5% to 13.7%)	6%	45	58 riichi
Riichi good-wait rate	65.5%	52.3% (46.3% to 58.3%)	16%	100	58 riichi
Riichi exhaustive draw rate	13.8%	18.2% (13.3% to 23.1%)	19%	15	58 riichi
Call income	711	508 (61.60 to 955)	10%	62	64 calls
Win rate after calling	39.1%	31.7% (26.2% to 37.2%)	20%	93	64 calls
Deal-in rate after calling	15.6%	12.3% (8.5% to 16.2%)	20%	4	64 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.02	28	286 hands
Dora and red fives dealt	+0.05	88	286 hands
Draw luck	+0.5%	86	3,504 tile draws
Ura-dora luck	-0.03	52	32 riichi wins
Ippatsu rate	+2.1%	66	32 riichi wins
Avoiding a chase riichi (/first riichi)	+0.4%	28	44 first riichi
Mangan+ tsumo against dealer rate	10.5%	66	86 tsumo against
Points from luck (/game)	-1.3	39	25 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.2%	+1,051	+919	+132
Wins with calls	8.7%	+499	+382	+116
Dama wins	3.5%	+223	+173	+50
Deal-ins to riichi	4.5%	-287	-360	+73
Deal-ins to open hands	2.8%	-147	-203	+57
Deal-ins to dama	0.7%	-18	-101	+83
Others' tsumo	30.1%	-865	-752	-113
Other (exhaustive draws, etc.)	38.5%	-84	-60	-24
Total (per hand)		+372

2019-20 (27 games · skill estimate 1.3pt/game)

Style

Average win value6,519
Riichi rate22.4%
Deal-in rate10.4%
Win rate21.0%
First riichi rate76.5%
Average riichi turn9.24
Call rate22.7%
Tenpai rate at exhaustive draws39.5%
Staying in vs riichi14.6%
Push rate vs riichi (1-shanten)40.0%
Push rate vs riichi (2+ shanten)22.8%
Tile efficiency match rate73.4%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate71.3%
Dama rate15.0%

Where the points came from

Own wins+53.2
Deal-ins-17.3
Others' tsumo-23.4
Ron between others-4.4
Exhaustive draws-0.4

Change in expected points per game. Total +7.7pt/game (27 games).

As a table

Hand result	Hands	Total	Per game
Own wins	80	+1435.4	+53.2
Deal-ins	30	-466.8	-17.3
Others' tsumo	87	-631.7	-23.4
Ron between others	75	-118.9	-4.4
Exhaustive draws	68	-10.5	-0.4

Luck

Points from luck (/game)+8.2
Draw luck+0.8%
Starting hand (shanten)-0.09
Dora and red fives dealt+0.05
Ura-dora luck+0.05
Ippatsu rate+3.1%
Avoiding a chase riichi (/first riichi)-1.8%
Mangan+ tsumo against dealer rate11.5%

Every number for 2019-20

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.33	2.47 (2.28 to 2.66)	16%	79	27 games
Points per game	7.8	1.3 (-6.6 to 9.2)	17%	82	27 games
Points per game, luck removed	-0.3	-0.1 (-7.3 to 7.2)	22%	61	27 games
1st-place rate	29.6%	25.9% (18.1% to 33.6%)	17%	75	27 games
4th-place rate	18.5%	23.7% (15.9% to 31.6%)	18%	84	27 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	23.5%	21.0% (18.8% to 23.3%)	30%	96	340 hands
Deal-in rate	8.8%	10.4% (8.6% to 12.1%)	27%	89	340 hands
Riichi rate	21.8%	22.4% (20.0% to 24.9%)	32%	54	340 hands
Call rate	22.6%	22.7% (19.3% to 26.1%)	84%	72	340 hands
First riichi rate	79.7%	76.5% (72.2% to 80.8%)	14%	56	74 riichi
Average riichi turn	9.03	9.24 (8.84 to 9.64)	30%	79	74 riichi
Average win value	6,298	6,519 (6,007 to 7,031)	24%	22	80 wins
Average deal-in value	6,043	5,664 (5,120 to 6,209)	9%	47	30 deal-ins
Win efficiency	1,664	1,481 (1,379 to 1,584)	4%	82	340 hands
Deal-in loss	551	627 (525 to 730)	13%	79	340 hands
Net efficiency	1,114	876 (664 to 1,088)	15%	86	340 hands
Push rate vs riichi (1-shanten)	37.0%	40.0% (33.3% to 46.6%)	23%	26	54 hands facing riichi
Push rate vs riichi (2+ shanten)	19.4%	22.8% (16.9% to 28.8%)	44%	19	72 hands facing riichi
Tenpai rate after the first call	35.1%	30.9% (24.7% to 37.1%)	56%	72	77 first calls
Average win turn	12.45	12.38 (12.23 to 12.53)	2%	40	80 wins
Tenpai rate at exhaustive draws	38.2%	39.5% (33.4% to 45.7%)	27%	40	68 exhaustive draws
Staying in vs riichi	21.2%	14.6% (12.7% to 16.5%)	8%	93	170 hands facing an opponent’s riichi
Tile efficiency match rate	73.5%	73.4% (71.8% to 75.0%)	84%	86	1,740 discards
Average ukeire loss (tiles)	1.11	1.10 (1.00 to 1.20)	74%	54	1,666 discards
Breaking shape for value	1.9%	1.9% (1.5% to 2.4%)	65%	36	1,740 discards
Tenpai turn (luck-adjusted)	8.15	8.17 (8.04 to 8.29)	4%	54	76 tenpai hands
Immediate riichi rate	70.8%	71.3% (65.5% to 77.1%)	41%	47	76 tenpai hands
Dama rate	16.3%	15.0% (10.2% to 19.8%)	56%	58	80 wins
Riichi income	2,699	2,636 (1,878 to 3,393)	17%	61	74 riichi
Riichi win rate	47.3%	46.4% (40.3% to 52.5%)	30%	58	74 riichi
Riichi deal-in rate A	13.5%	14.3% (12.4% to 16.2%)	3%	61	74 riichi
Riichi deal-in rate B	10.8%	11.0% (8.5% to 13.5%)	8%	54	74 riichi
Riichi good-wait rate	52.7%	50.3% (44.7% to 55.9%)	20%	65	74 riichi
Riichi exhaustive draw rate	14.9%	18.2% (13.6% to 22.8%)	23%	15	74 riichi
Call income	1,370	588 (156 to 1,020)	11%	96	77 calls
Win rate after calling	41.6%	32.5% (27.3% to 37.7%)	23%	100	77 calls
Deal-in rate after calling	6.5%	10.4% (6.7% to 14.0%)	23%	96	77 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.09	15	340 hands
Dora and red fives dealt	+0.05	79	340 hands
Draw luck	+0.8%	96	4,169 tile draws
Ura-dora luck	+0.05	50	35 riichi wins
Ippatsu rate	+3.1%	65	35 riichi wins
Avoiding a chase riichi (/first riichi)	-1.8%	29	59 first riichi
Mangan+ tsumo against dealer rate	11.5%	58	87 tsumo against
Points from luck (/game)	+8.2	93	27 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.3%	+1,006	+919	+87
Wins with calls	9.4%	+439	+382	+56
Dama wins	3.8%	+220	+173	+47
Deal-ins to riichi	5.3%	-349	-360	+11
Deal-ins to open hands	0.9%	-38	-203	+165
Deal-ins to dama	2.6%	-188	-101	-87
Others' tsumo	25.6%	-737	-752	+15
Other (exhaustive draws, etc.)	42.1%	-69	-60	-9
Total (per hand)		+284

2018-19 (27 games · skill estimate 2.9pt/game)

Style

Average win value6,453
Riichi rate22.2%
Deal-in rate10.5%
Win rate21.8%
First riichi rate76.2%
Average riichi turn9.31
Call rate23.7%
Tenpai rate at exhaustive draws40.1%
Staying in vs riichi14.5%
Push rate vs riichi (1-shanten)39.8%
Push rate vs riichi (2+ shanten)21.5%
Tile efficiency match rate71.5%
Tenpai turn (luck-adjusted)8.18
Immediate riichi rate72.5%
Dama rate16.7%

Where the points came from

Own wins+58.7
Deal-ins-17.0
Others' tsumo-22.9
Ron between others-2.0
Exhaustive draws+1.1

Change in expected points per game. Total +17.9pt/game (27 games).

As a table

Hand result	Hands	Total	Per game
Own wins	89	+1584.8	+58.7
Deal-ins	32	-459.3	-17.0
Others' tsumo	89	-617.7	-22.9
Ron between others	62	-55.1	-2.0
Exhaustive draws	72	+30.1	+1.1

Luck

Points from luck (/game)+12.3
Draw luck-0.1%
Starting hand (shanten)-0.02
Dora and red fives dealt+0.04
Ura-dora luck-0.09
Ippatsu rate-5.1%
Avoiding a chase riichi (/first riichi)-8.6%
Mangan+ tsumo against dealer rate10.1%

Every number for 2018-19

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.07	2.43 (2.24 to 2.62)	16%	100	27 games
Points per game	17.6	2.9 (-5.0 to 10.8)	17%	100	27 games
Points per game, luck removed	5.3	1.1 (-6.1 to 8.4)	22%	80	27 games
1st-place rate	40.7%	27.8% (20.1% to 35.5%)	17%	100	27 games
4th-place rate	14.8%	23.1% (15.2% to 30.9%)	18%	90	27 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	25.9%	21.8% (19.5% to 24.0%)	30%	100	344 hands
Deal-in rate	9.3%	10.5% (8.7% to 12.2%)	27%	85	344 hands
Riichi rate	20.9%	22.2% (19.8% to 24.6%)	32%	36	344 hands
Call rate	23.8%	23.7% (20.3% to 27.1%)	84%	65	344 hands
First riichi rate	77.8%	76.2% (71.9% to 80.6%)	14%	50	72 riichi
Average riichi turn	9.26	9.31 (8.91 to 9.72)	30%	85	72 riichi
Average win value	6,071	6,453 (5,959 to 6,947)	26%	16	89 wins
Average deal-in value	5,588	5,622 (5,083 to 6,161)	10%	60	32 deal-ins
Win efficiency	1,788	1,486 (1,383 to 1,589)	4%	100	344 hands
Deal-in loss	542	626 (524 to 729)	13%	85	344 hands
Net efficiency	1,245	896 (684 to 1,108)	15%	100	344 hands
Push rate vs riichi (1-shanten)	36.4%	39.8% (33.2% to 46.4%)	23%	33	55 hands facing riichi
Push rate vs riichi (2+ shanten)	17.1%	21.5% (15.8% to 27.2%)	48%	6	82 hands facing riichi
Tenpai rate after the first call	31.7%	29.1% (23.0% to 35.2%)	57%	80	82 first calls
Average win turn	11.88	12.37 (12.22 to 12.51)	2%	95	89 wins
Tenpai rate at exhaustive draws	40.3%	40.1% (34.1% to 46.2%)	29%	60	72 exhaustive draws
Staying in vs riichi	19.3%	14.5% (12.7% to 16.4%)	8%	100	187 hands facing an opponent’s riichi
Tile efficiency match rate	71.2%	71.5% (69.9% to 73.0%)	84%	31	1,777 discards
Average ukeire loss (tiles)	1.20	1.17 (1.07 to 1.26)	74%	80	1,708 discards
Breaking shape for value	1.7%	1.8% (1.4% to 2.3%)	65%	31	1,777 discards
Tenpai turn (luck-adjusted)	8.55	8.18 (8.06 to 8.31)	4%	95	77 tenpai hands
Immediate riichi rate	73.7%	72.5% (66.7% to 78.3%)	41%	60	77 tenpai hands
Dama rate	19.1%	16.7% (12.1% to 21.4%)	59%	80	89 wins
Riichi income	2,861	2,662 (1,899 to 3,424)	16%	50	72 riichi
Riichi win rate	56.9%	49.2% (43.0% to 55.4%)	29%	100	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	9.7%	10.9% (8.4% to 13.5%)	7%	70	72 riichi
Riichi good-wait rate	45.8%	49.0% (43.4% to 54.6%)	19%	31	72 riichi
Riichi exhaustive draw rate	16.7%	18.7% (14.0% to 23.3%)	23%	41	72 riichi
Call income	1,182	571 (144 to 997)	12%	95	82 calls
Win rate after calling	37.8%	31.7% (26.6% to 36.9%)	24%	100	82 calls
Deal-in rate after calling	11.0%	11.4% (7.8% to 14.9%)	24%	55	82 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.02	65	344 hands
Dora and red fives dealt	+0.04	95	344 hands
Draw luck	-0.1%	41	4,290 tile draws
Ura-dora luck	-0.09	16	41 riichi wins
Ippatsu rate	-5.1%	21	41 riichi wins
Avoiding a chase riichi (/first riichi)	-8.6%	6	56 first riichi
Mangan+ tsumo against dealer rate	10.1%	65	89 tsumo against
Points from luck (/game)	+12.3	100	27 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.9%	+939	+919	+20
Wins with calls	9.0%	+497	+382	+115
Dama wins	4.9%	+351	+173	+179
Deal-ins to riichi	4.1%	-337	-360	+23
Deal-ins to open hands	2.9%	-78	-203	+125
Deal-ins to dama	2.3%	-148	-101	-47
Others' tsumo	25.9%	-715	-752	+37
Other (exhaustive draws, etc.)	39.0%	-41	-60	+19
Total (per hand)		+469

Columns about this player

Does Ooi Takaharu keep the suji of an early discard when his start hand is bad? (Japanese)A review stream suggested that Ooi keeps the suji of the number tile he cuts early when his start hand is bad. The records confirm the pattern, but it is league-wide; there is no clear sign that it is stronger for Ooi than for anyone else.
Where does Ooi Takaharu's low deal-in rate come from? (Japanese)Ooi Takaharu deals in less than anyone in M.League. Discard by discard, the difference shows clearly in hands where he is in riichi and in closed hands facing another player's riichi.

Players with a similar styleclosest career style metrics first

Hiroshi DaigoSEGA SAMMY PhoenixIn common: Often noten at exhaustive draws, Early riichi, High win rate
Sho ShiratoriShibuya ABEMASIn common: Riichis rarely, Smaller hands, First riichi often
Genta TakeuchiSEGA SAMMY PhoenixIn common: Few deal-ins, Early riichi, Riichis rarely

* 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.