Player · 119 career games · 2018-19–2026-27

Koshin Asakura

Uses calls a lot to move hands along. Stands out for being tenpai at draws, few deal-ins and riichi-ing as soon as tenpai. Career record: -3.2pt per game, but allowing for luck the difference from average is not clear yet.

Few deal-ins
Early riichi
Immediate riichi

Actual / game

-3.2

119 career games

Skill estimate / game

-1.5

90% interval -6.4 to +3.3

Estimate, luck removed

+0.3

adjusted for starting hands, draws, ura-dora

Weight of the record

47%

share of the estimate from the record

Styleleague percentile, career

Average win value6,395
Riichi rate22.6%
Deal-in rate10.1%
Win rate19.4%
First riichi rate79.0%
Average riichi turn9.18
Call rate26.0%
Tenpai rate at exhaustive draws44.9%
Staying in vs riichi13.9%
Push rate vs riichi (1-shanten)38.4%
Push rate vs riichi (2+ shanten)24.5%
Tile efficiency match rate72.8%
Tenpai turn (luck-adjusted)8.15
Immediate riichi rate78.4%
Dama rate10.1%

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.

Placements119 career games, average placement 2.56

1st20.2%24×
2nd28.6%34×
3rd26.1%31×
4th25.2%30×

Riichi and callsbalance and outcome of hands with riichi or calls

Riichi income2,491
Riichi win rate44.2%
Riichi deal-in rate A14.1%
Riichi deal-in rate B10.5%
Riichi good-wait rate51.4%
Riichi exhaustive draw rate22.4%
Call income492
Win rate after calling29.3%
Deal-in rate after calling9.5%
Tenpai rate after the first call23.0%

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 efficiency800
Deal-in loss619
Average win turn12.37

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-1.5
Points per game, luck removed0.3
Average placement2.53

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

Points from luck (/game)-3.8
Draw luck-0.2%
Starting hand (shanten)+0.01
Dora and red fives dealt-0.00
Ura-dora luck-0.09
Ippatsu rate-2.6%
Avoiding a chase riichi (/first riichi)-2.5%
Mangan+ tsumo against dealer rate14.9%

Where the points came fromchange in expected points, all stages

Own wins+43.0
Deal-ins-19.2
Others' tsumo-25.8
Ron between others-2.2
Exhaustive draws+1.0

Change in expected points per game. Total -3.2pt/game (119 games).

As a table

Hand result	Hands	Total	Per game
Own wins	286	+5114.6	+43.0
Deal-ins	142	-2285.3	-19.2
Others' tsumo	403	-3072.9	-25.8
Ron between others	328	-258.3	-2.2
Exhaustive draws	333	+120.8	+1.0

Hand balance breakdownpoints won or lost per hand, all stages

Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.8%	+810	+919	-109
Wins with calls	7.6%	+400	+382	+17
Dama wins	1.8%	+133	+173	-40
Deal-ins to riichi	4.6%	-346	-360	+14
Deal-ins to open hands	3.0%	-158	-203	+45
Deal-ins to dama	1.9%	-105	-101	-4
Others' tsumo	27.0%	-771	-752	-18
Other (exhaustive draws, etc.)	44.3%	-27	-60	+33
Total (per hand)		-64

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

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.56	2.53 (2.41 to 2.65)	45%	27	119 games
Points per game	-3.2	-1.5 (-6.4 to 3.3)	47%	21	119 games
Points per game, luck removed	0.6	0.3 (-4.0 to 4.7)	55%	52	119 games
1st-place rate	20.2%	22.7% (18.0% to 27.4%)	48%	9	119 games
4th-place rate	25.2%	25.1% (20.3% to 29.8%)	50%	52	119 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	19.2%	19.4% (18.1% to 20.8%)	65%	31	1,492 hands
Deal-in rate	9.5%	10.1% (9.0% to 11.1%)	61%	96	1,492 hands
Riichi rate	22.6%	22.6% (21.2% to 24.1%)	67%	45	1,492 hands
Call rate	26.1%	26.0% (24.3% to 27.8%)	96%	72	1,492 hands
First riichi rate	83.1%	79.0% (76.4% to 81.7%)	43%	100	337 riichi
Average riichi turn	9.10	9.18 (8.94 to 9.42)	66%	84	337 riichi
Average win value	6,226	6,395 (6,065 to 6,725)	54%	21	286 wins
Average deal-in value	5,949	5,731 (5,373 to 6,089)	33%	15	142 deal-ins
Win efficiency	1,342	1,455 (1,373 to 1,537)	15%	9	1,492 hands
Deal-in loss	588	619 (554 to 684)	39%	82	1,492 hands
Net efficiency	754	800 (668 to 933)	43%	23	1,492 hands
Push rate vs riichi (1-shanten)	36.7%	38.4% (34.5% to 42.4%)	58%	15	248 hands facing riichi
Push rate vs riichi (2+ shanten)	24.1%	24.5% (20.7% to 28.2%)	75%	39	278 hands facing riichi
Tenpai rate after the first call	22.6%	23.0% (19.6% to 26.4%)	86%	23	390 first calls
Average win turn	12.18	12.37 (12.24 to 12.50)	7%	84	286 wins
Tenpai rate at exhaustive draws	47.4%	44.9% (41.3% to 48.4%)	65%	98	333 exhaustive draws
Staying in vs riichi	13.3%	13.9% (12.5% to 15.2%)	27%	37	745 hands facing an opponent’s riichi
Tile efficiency match rate	72.8%	72.8% (72.0% to 73.6%)	96%	49	7,970 discards
Average ukeire loss (tiles)	1.02	1.02 (0.97 to 1.07)	93%	41	7,661 discards
Breaking shape for value	2.1%	2.1% (1.8% to 2.3%)	89%	64	7,970 discards
Tenpai turn (luck-adjusted)	8.03	8.15 (8.05 to 8.25)	16%	15	318 tenpai hands
Immediate riichi rate	80.7%	78.4% (74.8% to 81.9%)	74%	96	318 tenpai hands
Dama rate	9.4%	10.1% (7.1% to 13.1%)	82%	21	286 wins
Riichi income	2,346	2,491 (2,032 to 2,950)	48%	21	337 riichi
Riichi win rate	43.3%	44.2% (40.6% to 47.9%)	66%	21	337 riichi
Riichi deal-in rate A	12.5%	14.1% (12.6% to 15.7%)	11%	82	337 riichi
Riichi deal-in rate B	9.2%	10.5% (8.8% to 12.3%)	27%	88	337 riichi
Riichi good-wait rate	52.8%	51.4% (48.0% to 54.7%)	53%	86	337 riichi
Riichi exhaustive draw rate	24.6%	22.4% (19.7% to 25.1%)	58%	96	337 riichi
Call income	502	492 (227 to 758)	40%	52	390 calls
Win rate after calling	29.0%	29.3% (26.3% to 32.3%)	60%	41	390 calls
Deal-in rate after calling	8.2%	9.5% (7.4% to 11.6%)	60%	100	390 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.01	62	1,492 hands
Dora and red fives dealt	-0.00	43	1,492 hands
Draw luck	-0.2%	19	18,310 tile draws
Ura-dora luck	-0.09	3	146 riichi wins
Ippatsu rate	-2.6%	15	146 riichi wins
Avoiding a chase riichi (/first riichi)	-2.5%	19	280 first riichi
Mangan+ tsumo against dealer rate	14.9%	3	403 tsumo against
Points from luck (/game)	-3.8	5	119 games

By seasonRegular Season

2026-27 (13 games · skill estimate -0.8pt/game)

Style

Average win value6,511
Riichi rate22.6%
Deal-in rate11.3%
Win rate19.6%
First riichi rate75.3%
Average riichi turn9.42
Call rate23.6%
Tenpai rate at exhaustive draws40.1%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)40.5%
Push rate vs riichi (2+ shanten)24.8%
Tile efficiency match rate70.5%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate70.4%
Dama rate11.4%

Where the points came from

Own wins+36.8
Deal-ins-22.4
Others' tsumo-26.8
Ron between others+2.4
Exhaustive draws+0.9

Change in expected points per game. Total -9.1pt/game (13 games).

As a table

Hand result	Hands	Total	Per game
Own wins	28	+478.5	+36.8
Deal-ins	21	-290.8	-22.4
Others' tsumo	40	-348.0	-26.8
Ron between others	33	+30.9	+2.4
Exhaustive draws	37	+11.2	+0.9

Luck

Points from luck (/game)+2.6
Draw luck-0.2%
Starting hand (shanten)+0.04
Dora and red fives dealt-0.00
Ura-dora luck-0.07
Ippatsu rate+6.9%
Avoiding a chase riichi (/first riichi)+3.6%
Mangan+ tsumo against dealer rate15.0%

Every number for 2026-27

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.62	2.51 (2.28 to 2.73)	8%	42	13 games
Points per game	-9.7	-0.8 (-10.0 to 8.3)	9%	20	13 games
Points per game, luck removed	-12.3	-1.4 (-10.1 to 7.2)	12%	9	13 games
1st-place rate	15.4%	24.2% (15.2% to 33.2%)	9%	28	13 games
4th-place rate	23.1%	24.7% (15.5% to 33.9%)	10%	59	13 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	17.6%	19.6% (16.7% to 22.5%)	17%	25	159 hands
Deal-in rate	13.2%	11.3% (9.1% to 13.4%)	14%	25	159 hands
Riichi rate	22.0%	22.6% (19.5% to 25.7%)	18%	33	159 hands
Call rate	23.9%	23.6% (19.0% to 28.3%)	71%	44	159 hands
First riichi rate	65.7%	75.3% (70.3% to 80.2%)	7%	9	35 riichi
Average riichi turn	9.80	9.42 (8.91 to 9.92)	17%	14	35 riichi
Average win value	5,814	6,511 (5,847 to 7,176)	10%	30	28 wins
Average deal-in value	5,214	5,598 (5,024 to 6,173)	7%	60	21 deal-ins
Win efficiency	1,169	1,469 (1,360 to 1,577)	2%	25	159 hands
Deal-in loss	717	644 (527 to 761)	6%	30	159 hands
Net efficiency	452	807 (563 to 1,051)	7%	20	159 hands
Push rate vs riichi (1-shanten)	38.7%	40.5% (32.8% to 48.3%)	15%	30	31 hands facing riichi
Push rate vs riichi (2+ shanten)	23.3%	24.8% (17.7% to 31.9%)	32%	41	43 hands facing riichi
Tenpai rate after the first call	10.5%	19.9% (12.0% to 27.8%)	38%	4	38 first calls
Average win turn	12.23	12.38 (12.23 to 12.53)	1%	57	28 wins
Tenpai rate at exhaustive draws	40.5%	40.1% (32.7% to 47.5%)	17%	49	37 exhaustive draws
Staying in vs riichi	13.8%	14.1% (12.0% to 16.1%)	4%	41	94 hands facing an opponent’s riichi
Tile efficiency match rate	69.4%	70.5% (68.3% to 72.7%)	70%	9	778 discards
Average ukeire loss (tiles)	1.08	1.07 (0.94 to 1.20)	55%	68	733 discards
Breaking shape for value	2.7%	2.3% (1.7% to 2.9%)	45%	79	778 discards
Tenpai turn (luck-adjusted)	8.39	8.17 (8.04 to 8.31)	2%	84	32 tenpai hands
Immediate riichi rate	65.9%	70.4% (62.5% to 78.2%)	22%	28	32 tenpai hands
Dama rate	7.1%	11.4% (4.6% to 18.3%)	31%	49	28 wins
Riichi income	2,669	2,627 (1,745 to 3,508)	9%	60	35 riichi
Riichi win rate	42.9%	45.5% (37.8% to 53.2%)	17%	44	35 riichi
Riichi deal-in rate A	17.1%	14.4% (12.4% to 16.3%)	1%	29	35 riichi
Riichi deal-in rate B	11.4%	11.1% (8.3% to 13.8%)	4%	44	35 riichi
Riichi good-wait rate	51.4%	49.9% (43.3% to 56.6%)	10%	63	35 riichi
Riichi exhaustive draw rate	22.9%	19.7% (14.1% to 25.3%)	13%	60	35 riichi
Call income	321	477 (-5.91 to 959)	6%	46	38 calls
Win rate after calling	28.9%	29.7% (23.4% to 36.0%)	13%	52	38 calls
Deal-in rate after calling	13.2%	11.7% (7.4% to 16.1%)	13%	33	38 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.04	73	159 hands
Dora and red fives dealt	-0.00	41	159 hands
Draw luck	-0.2%	41	1,935 tile draws
Ura-dora luck	-0.07	28	15 riichi wins
Ippatsu rate	+6.9%	81	15 riichi wins
Avoiding a chase riichi (/first riichi)	+3.6%	73	23 first riichi
Mangan+ tsumo against dealer rate	15.0%	30	40 tsumo against
Points from luck (/game)	+2.6	68	13 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.4%	+815	+919	-104
Wins with calls	6.9%	+256	+382	-126
Dama wins	1.3%	+97	+173	-75
Deal-ins to riichi	6.3%	-405	-360	-45
Deal-ins to open hands	4.4%	-248	-203	-45
Deal-ins to dama	2.5%	-89	-101	+12
Others' tsumo	25.2%	-763	-752	-10
Other (exhaustive draws, etc.)	44.0%	-53	-60	+6
Total (per hand)		-390

2021-22 (23 games · skill estimate 0.4pt/game)

Style

Average win value6,514
Riichi rate23.0%
Deal-in rate10.6%
Win rate20.7%
First riichi rate77.9%
Average riichi turn9.12
Call rate25.1%
Tenpai rate at exhaustive draws42.1%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)40.1%
Push rate vs riichi (2+ shanten)23.5%
Tile efficiency match rate72.7%
Tenpai turn (luck-adjusted)8.15
Immediate riichi rate75.6%
Dama rate11.1%

Where the points came from

Own wins+47.1
Deal-ins-21.1
Others' tsumo-20.6
Ron between others-2.1
Exhaustive draws-0.4

Change in expected points per game. Total +2.9pt/game (23 games).

As a table

Hand result	Hands	Total	Per game
Own wins	67	+1083.1	+47.1
Deal-ins	28	-484.5	-21.1
Others' tsumo	78	-473.1	-20.6
Ron between others	57	-48.1	-2.1
Exhaustive draws	67	-10.0	-0.4

Luck

Points from luck (/game)+0.4
Draw luck-0.0%
Starting hand (shanten)+0.04
Dora and red fives dealt+0.01
Ura-dora luck+0.10
Ippatsu rate+9.3%
Avoiding a chase riichi (/first riichi)-1.6%
Mangan+ tsumo against dealer rate12.8%

Every number for 2021-22

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.48	2.49 (2.29 to 2.69)	14%	55	23 games
Points per game	3.0	0.4 (-7.8 to 8.7)	15%	58	23 games
Points per game, luck removed	2.6	0.5 (-7.1 to 8.1)	19%	62	23 games
1st-place rate	26.1%	25.2% (17.2% to 33.3%)	15%	52	23 games
4th-place rate	30.4%	25.8% (17.6% to 33.9%)	16%	30	23 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.6%	20.7% (18.3% to 23.1%)	27%	84	297 hands
Deal-in rate	9.4%	10.6% (8.7% to 12.4%)	24%	78	297 hands
Riichi rate	23.6%	23.0% (20.4% to 25.5%)	29%	65	297 hands
Call rate	25.6%	25.1% (21.5% to 28.7%)	82%	84	297 hands
First riichi rate	90.0%	77.9% (73.5% to 82.2%)	13%	100	70 riichi
Average riichi turn	8.59	9.12 (8.71 to 9.52)	29%	100	70 riichi
Average win value	6,234	6,514 (5,973 to 7,056)	21%	20	67 wins
Average deal-in value	6,989	5,744 (5,193 to 6,295)	9%	1	28 deal-ins
Win efficiency	1,566	1,477 (1,373 to 1,581)	3%	65	297 hands
Deal-in loss	676	643 (537 to 749)	11%	23	297 hands
Net efficiency	890	842 (624 to 1,061)	13%	49	297 hands
Push rate vs riichi (1-shanten)	36.8%	40.1% (32.8% to 47.5%)	17%	39	38 hands facing riichi
Push rate vs riichi (2+ shanten)	20.0%	23.5% (16.9% to 30.0%)	38%	33	55 hands facing riichi
Tenpai rate after the first call	26.3%	26.0% (19.8% to 32.3%)	55%	43	76 first calls
Average win turn	11.77	12.37 (12.22 to 12.52)	2%	100	67 wins
Tenpai rate at exhaustive draws	47.8%	42.1% (35.9% to 48.3%)	27%	90	67 exhaustive draws
Staying in vs riichi	12.8%	14.0% (12.1% to 15.9%)	6%	43	133 hands facing an opponent’s riichi
Tile efficiency match rate	72.6%	72.7% (71.0% to 74.3%)	82%	68	1,586 discards
Average ukeire loss (tiles)	1.02	1.03 (0.93 to 1.13)	72%	27	1,533 discards
Breaking shape for value	2.0%	2.0% (1.5% to 2.4%)	62%	43	1,586 discards
Tenpai turn (luck-adjusted)	7.76	8.15 (8.02 to 8.28)	4%	1	66 tenpai hands
Immediate riichi rate	82.2%	75.6% (69.4% to 81.7%)	37%	97	66 tenpai hands
Dama rate	9.0%	11.1% (6.0% to 16.1%)	52%	20	67 wins
Riichi income	2,761	2,645 (1,877 to 3,413)	16%	36	70 riichi
Riichi win rate	44.3%	45.5% (39.3% to 51.8%)	29%	31	70 riichi
Riichi deal-in rate A	14.3%	14.3% (12.4% to 16.2%)	3%	36	70 riichi
Riichi deal-in rate B	11.4%	11.1% (8.5% to 13.6%)	7%	28	70 riichi
Riichi good-wait rate	48.6%	49.5% (43.8% to 55.2%)	19%	43	70 riichi
Riichi exhaustive draw rate	24.3%	20.4% (15.7% to 25.1%)	22%	78	70 riichi
Call income	579	497 (64.11 to 930)	11%	62	76 calls
Win rate after calling	39.5%	32.0% (26.8% to 37.3%)	23%	97	76 calls
Deal-in rate after calling	10.5%	11.3% (7.6% to 14.9%)	23%	62	76 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.04	84	297 hands
Dora and red fives dealt	+0.01	46	297 hands
Draw luck	-0.0%	52	3,673 tile draws
Ura-dora luck	+0.10	81	31 riichi wins
Ippatsu rate	+9.3%	84	31 riichi wins
Avoiding a chase riichi (/first riichi)	-1.6%	27	63 first riichi
Mangan+ tsumo against dealer rate	12.8%	46	78 tsumo against
Points from luck (/game)	+0.4	68	23 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.4%	+972	+919	+53
Wins with calls	10.1%	+430	+382	+47
Dama wins	2.0%	+164	+173	-9
Deal-ins to riichi	4.7%	-406	-360	-46
Deal-ins to open hands	3.7%	-229	-203	-25
Deal-ins to dama	1.0%	-69	-101	+32
Others' tsumo	26.3%	-672	-752	+80
Other (exhaustive draws, etc.)	41.8%	-13	-60	+46
Total (per hand)		+178

2020-21 (19 games · skill estimate -1.9pt/game)

Style

Average win value6,423
Riichi rate22.6%
Deal-in rate10.9%
Win rate19.5%
First riichi rate76.9%
Average riichi turn9.23
Call rate22.6%
Tenpai rate at exhaustive draws43.5%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)39.4%
Push rate vs riichi (2+ shanten)22.3%
Tile efficiency match rate75.2%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate75.9%
Dama rate12.8%

Where the points came from

Own wins+35.6
Deal-ins-20.2
Others' tsumo-27.8
Ron between others-4.0
Exhaustive draws+1.0

Change in expected points per game. Total -15.4pt/game (19 games).

As a table

Hand result	Hands	Total	Per game
Own wins	42	+677.0	+35.6
Deal-ins	25	-383.7	-20.2
Others' tsumo	65	-528.5	-27.8
Ron between others	61	-75.6	-4.0
Exhaustive draws	43	+18.3	+1.0

Luck

Points from luck (/game)-4.1
Draw luck+0.1%
Starting hand (shanten)-0.01
Dora and red fives dealt-0.05
Ura-dora luck-0.20
Ippatsu rate+0.3%
Avoiding a chase riichi (/first riichi)-6.5%
Mangan+ tsumo against dealer rate16.9%

Every number for 2020-21

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.84	2.54 (2.33 to 2.75)	12%	11	19 games
Points per game	-15.5	-1.9 (-10.5 to 6.7)	12%	4	19 games
Points per game, luck removed	-11.4	-1.8 (-9.8 to 6.1)	16%	18	19 games
1st-place rate	10.5%	23.2% (14.8% to 31.6%)	13%	4	19 games
4th-place rate	31.6%	25.8% (17.3% to 34.3%)	14%	30	19 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	17.8%	19.5% (16.9% to 22.1%)	23%	32	236 hands
Deal-in rate	10.6%	10.9% (8.9% to 12.8%)	20%	59	236 hands
Riichi rate	22.0%	22.6% (19.8% to 25.3%)	24%	52	236 hands
Call rate	22.5%	22.6% (18.6% to 26.6%)	78%	62	236 hands
First riichi rate	84.6%	76.9% (72.3% to 81.5%)	10%	90	52 riichi
Average riichi turn	8.87	9.23 (8.78 to 9.68)	23%	83	52 riichi
Average win value	5,438	6,423 (5,811 to 7,035)	14%	15	42 wins
Average deal-in value	5,840	5,643 (5,082 to 6,203)	8%	35	25 deal-ins
Win efficiency	1,095	1,464 (1,358 to 1,570)	3%	8	236 hands
Deal-in loss	645	639 (529 to 750)	9%	49	236 hands
Net efficiency	450	794 (565 to 1,023)	11%	18	236 hands
Push rate vs riichi (1-shanten)	33.3%	39.4% (32.2% to 46.6%)	19%	32	42 hands facing riichi
Push rate vs riichi (2+ shanten)	15.0%	22.3% (15.0% to 29.6%)	31%	15	40 hands facing riichi
Tenpai rate after the first call	22.6%	24.3% (17.2% to 31.3%)	46%	21	53 first calls
Average win turn	11.73	12.37 (12.22 to 12.52)	1%	97	42 wins
Tenpai rate at exhaustive draws	58.1%	43.5% (36.4% to 50.7%)	19%	100	43 exhaustive draws
Staying in vs riichi	12.9%	14.0% (12.0% to 16.0%)	5%	49	116 hands facing an opponent’s riichi
Tile efficiency match rate	75.9%	75.2% (73.4% to 77.1%)	78%	97	1,220 discards
Average ukeire loss (tiles)	0.89	0.95 (0.84 to 1.06)	66%	4	1,165 discards
Breaking shape for value	1.9%	1.9% (1.4% to 2.4%)	56%	42	1,220 discards
Tenpai turn (luck-adjusted)	7.86	8.16 (8.03 to 8.29)	3%	15	45 tenpai hands
Immediate riichi rate	86.4%	75.9% (68.9% to 82.9%)	29%	93	45 tenpai hands
Dama rate	11.9%	12.8% (6.8% to 18.7%)	40%	32	42 wins
Riichi income	1,754	2,516 (1,696 to 3,337)	12%	28	52 riichi
Riichi win rate	38.5%	44.3% (37.4% to 51.2%)	23%	25	52 riichi
Riichi deal-in rate A	5.8%	14.2% (12.2% to 16.1%)	2%	97	52 riichi
Riichi deal-in rate B	5.8%	10.8% (8.1% to 13.4%)	5%	93	52 riichi
Riichi good-wait rate	51.9%	50.1% (43.9% to 56.2%)	15%	56	52 riichi
Riichi exhaustive draw rate	30.8%	21.3% (16.2% to 26.4%)	18%	100	52 riichi
Call income	211	464 (3.32 to 925)	8%	28	53 calls
Win rate after calling	32.1%	30.2% (24.4% to 36.0%)	17%	73	53 calls
Deal-in rate after calling	9.4%	11.2% (7.1% to 15.2%)	17%	66	53 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.01	45	236 hands
Dora and red fives dealt	-0.05	4	236 hands
Draw luck	+0.1%	62	2,770 tile draws
Ura-dora luck	-0.20	8	20 riichi wins
Ippatsu rate	+0.3%	52	20 riichi wins
Avoiding a chase riichi (/first riichi)	-6.5%	8	44 first riichi
Mangan+ tsumo against dealer rate	16.9%	15	65 tsumo against
Points from luck (/game)	-4.1	18	19 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	8.5%	+647	+919	-272
Wins with calls	7.2%	+342	+382	-40
Dama wins	2.1%	+106	+173	-67
Deal-ins to riichi	3.0%	-259	-360	+101
Deal-ins to open hands	3.0%	-103	-203	+101
Deal-ins to dama	4.7%	-296	-101	-195
Others' tsumo	27.5%	-858	-752	-106
Other (exhaustive draws, etc.)	44.1%	-40	-60	+19
Total (per hand)		-462

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

Style

Average win value6,312
Riichi rate22.7%
Deal-in rate10.7%
Win rate20.0%
First riichi rate77.5%
Average riichi turn9.18
Call rate26.7%
Tenpai rate at exhaustive draws40.9%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)41.0%
Push rate vs riichi (2+ shanten)27.2%
Tile efficiency match rate72.1%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate76.9%
Dama rate10.1%

Where the points came from

Own wins+42.5
Deal-ins-18.4
Others' tsumo-24.5
Ron between others-4.6
Exhaustive draws-0.1

Change in expected points per game. Total -5.1pt/game (28 games).

As a table

Hand result	Hands	Total	Per game
Own wins	69	+1191.0	+42.5
Deal-ins	35	-515.4	-18.4
Others' tsumo	85	-686.3	-24.5
Ron between others	73	-128.2	-4.6
Exhaustive draws	84	-4.1	-0.1

Luck

Points from luck (/game)-5.8
Draw luck+0.1%
Starting hand (shanten)+0.00
Dora and red fives dealt+0.03
Ura-dora luck-0.19
Ippatsu rate-16.9%
Avoiding a chase riichi (/first riichi)-1.5%
Mangan+ tsumo against dealer rate17.6%

Every number for 2019-20

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.61	2.52 (2.32 to 2.71)	16%	29	28 games
Points per game	-5.1	-0.9 (-8.7 to 7.0)	17%	33	28 games
Points per game, luck removed	0.7	0.2 (-7.0 to 7.3)	22%	68	28 games
1st-place rate	21.4%	24.4% (16.8% to 32.1%)	18%	33	28 games
4th-place rate	25.0%	24.9% (17.2% to 32.7%)	19%	58	28 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	19.9%	20.0% (17.7% to 22.2%)	30%	79	346 hands
Deal-in rate	10.1%	10.7% (9.0% to 12.4%)	27%	68	346 hands
Riichi rate	22.5%	22.7% (20.3% to 25.1%)	32%	68	346 hands
Call rate	27.5%	26.7% (23.3% to 30.1%)	84%	89	346 hands
First riichi rate	85.9%	77.5% (73.2% to 81.7%)	15%	100	78 riichi
Average riichi turn	8.83	9.18 (8.79 to 9.57)	31%	93	78 riichi
Average win value	5,312	6,312 (5,775 to 6,848)	22%	1	69 wins
Average deal-in value	5,160	5,576 (5,046 to 6,106)	11%	86	35 deal-ins
Win efficiency	1,212	1,464 (1,361 to 1,567)	4%	1	346 hands
Deal-in loss	544	626 (524 to 729)	13%	89	346 hands
Net efficiency	668	811 (599 to 1,022)	15%	33	346 hands
Push rate vs riichi (1-shanten)	41.7%	41.0% (34.6% to 47.5%)	25%	54	60 hands facing riichi
Push rate vs riichi (2+ shanten)	29.8%	27.2% (20.8% to 33.6%)	39%	73	57 hands facing riichi
Tenpai rate after the first call	25.3%	25.4% (19.6% to 31.2%)	61%	26	95 first calls
Average win turn	11.99	12.37 (12.23 to 12.52)	2%	79	69 wins
Tenpai rate at exhaustive draws	42.9%	40.9% (35.2% to 46.7%)	32%	54	84 exhaustive draws
Staying in vs riichi	14.3%	14.1% (12.2% to 16.0%)	8%	54	168 hands facing an opponent’s riichi
Tile efficiency match rate	72.0%	72.1% (70.6% to 73.6%)	85%	61	1,943 discards
Average ukeire loss (tiles)	1.08	1.07 (0.98 to 1.17)	76%	43	1,875 discards
Breaking shape for value	2.5%	2.3% (1.9% to 2.8%)	67%	86	1,943 discards
Tenpai turn (luck-adjusted)	7.91	8.16 (8.03 to 8.28)	4%	12	71 tenpai hands
Immediate riichi rate	85.3%	76.9% (71.0% to 82.9%)	39%	89	71 tenpai hands
Dama rate	7.2%	10.1% (5.1% to 15.1%)	53%	5	69 wins
Riichi income	1,942	2,505 (1,757 to 3,252)	17%	19	78 riichi
Riichi win rate	44.9%	45.7% (39.7% to 51.7%)	31%	43	78 riichi
Riichi deal-in rate A	14.1%	14.3% (12.4% to 16.2%)	3%	47	78 riichi
Riichi deal-in rate B	7.7%	10.8% (8.3% to 13.3%)	8%	82	78 riichi
Riichi good-wait rate	47.4%	49.3% (43.8% to 54.8%)	21%	33	78 riichi
Riichi exhaustive draw rate	19.2%	19.3% (14.7% to 23.8%)	24%	47	78 riichi
Call income	522	491 (77.96 to 905)	14%	47	95 calls
Win rate after calling	30.5%	30.0% (25.1% to 34.9%)	27%	58	95 calls
Deal-in rate after calling	7.4%	10.4% (7.0% to 13.8%)	27%	93	95 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.00	72	346 hands
Dora and red fives dealt	+0.03	72	346 hands
Draw luck	+0.1%	40	4,260 tile draws
Ura-dora luck	-0.19	5	35 riichi wins
Ippatsu rate	-16.9%	5	35 riichi wins
Avoiding a chase riichi (/first riichi)	-1.5%	36	67 first riichi
Mangan+ tsumo against dealer rate	17.6%	5	85 tsumo against
Points from luck (/game)	-5.8	5	28 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.1%	+729	+919	-190
Wins with calls	8.4%	+362	+382	-20
Dama wins	1.4%	+121	+173	-52
Deal-ins to riichi	4.6%	-316	-360	+44
Deal-ins to open hands	3.5%	-160	-203	+44
Deal-ins to dama	2.0%	-86	-101	+15
Others' tsumo	24.6%	-747	-752	+5
Other (exhaustive draws, etc.)	45.4%	-58	-60	+2
Total (per hand)		-154

2018-19 (28 games · skill estimate 1.1pt/game)

Style

Average win value6,685
Riichi rate23.2%
Deal-in rate10.0%
Win rate19.5%
First riichi rate77.0%
Average riichi turn9.40
Call rate26.5%
Tenpai rate at exhaustive draws44.6%
Staying in vs riichi14.1%
Push rate vs riichi (1-shanten)38.9%
Push rate vs riichi (2+ shanten)26.4%
Tile efficiency match rate73.1%
Tenpai turn (luck-adjusted)8.17
Immediate riichi rate74.1%
Dama rate13.6%

Where the points came from

Own wins+47.2
Deal-ins-18.4
Others' tsumo-25.1
Ron between others-1.8
Exhaustive draws+4.4

Change in expected points per game. Total +6.3pt/game (28 games).

As a table

Hand result	Hands	Total	Per game
Own wins	65	+1320.4	+47.2
Deal-ins	27	-515.3	-18.4
Others' tsumo	105	-702.1	-25.1
Ron between others	79	-51.6	-1.8
Exhaustive draws	78	+123.8	+4.4

Luck

Points from luck (/game)-8.1
Draw luck-0.8%
Starting hand (shanten)+0.02
Dora and red fives dealt-0.00
Ura-dora luck-0.08
Ippatsu rate-5.9%
Avoiding a chase riichi (/first riichi)-6.1%
Mangan+ tsumo against dealer rate11.4%

Every number for 2018-19

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.29	2.46 (2.27 to 2.65)	16%	95	28 games
Points per game	6.4	1.1 (-6.7 to 8.9)	17%	85	28 games
Points per game, luck removed	14.5	3.2 (-3.9 to 10.4)	22%	95	28 games
1st-place rate	25.0%	25.1% (17.4% to 32.7%)	18%	55	28 games
4th-place rate	17.9%	23.6% (15.8% to 31.3%)	19%	80	28 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	18.4%	19.5% (17.2% to 21.7%)	31%	26	354 hands
Deal-in rate	7.6%	10.0% (8.3% to 11.7%)	27%	95	354 hands
Riichi rate	24.0%	23.2% (20.8% to 25.5%)	32%	70	354 hands
Call rate	27.1%	26.5% (23.1% to 29.8%)	84%	80	354 hands
First riichi rate	82.4%	77.0% (72.8% to 81.2%)	16%	100	85 riichi
Average riichi turn	9.53	9.40 (9.02 to 9.78)	33%	46	85 riichi
Average win value	7,048	6,685 (6,139 to 7,232)	21%	70	65 wins
Average deal-in value	6,715	5,717 (5,163 to 6,271)	8%	21	27 deal-ins
Win efficiency	1,455	1,473 (1,371 to 1,576)	4%	41	354 hands
Deal-in loss	530	624 (522 to 726)	13%	95	354 hands
Net efficiency	925	849 (638 to 1,059)	15%	65	354 hands
Push rate vs riichi (1-shanten)	32.8%	38.9% (32.4% to 45.4%)	24%	16	58 hands facing riichi
Push rate vs riichi (2+ shanten)	27.7%	26.4% (20.3% to 32.6%)	42%	50	65 hands facing riichi
Tenpai rate after the first call	25.0%	25.3% (19.5% to 31.0%)	61%	41	96 first calls
Average win turn	13.07	12.39 (12.24 to 12.54)	2%	6	65 wins
Tenpai rate at exhaustive draws	55.1%	44.6% (38.7% to 50.5%)	30%	100	78 exhaustive draws
Staying in vs riichi	14.3%	14.1% (12.2% to 16.0%)	8%	55	175 hands facing an opponent’s riichi
Tile efficiency match rate	73.2%	73.1% (71.6% to 74.7%)	85%	60	1,925 discards
Average ukeire loss (tiles)	1.04	1.04 (0.95 to 1.14)	76%	41	1,854 discards
Breaking shape for value	1.9%	2.0% (1.5% to 2.4%)	67%	50	1,925 discards
Tenpai turn (luck-adjusted)	8.27	8.17 (8.05 to 8.30)	5%	55	87 tenpai hands
Immediate riichi rate	77.3%	74.1% (68.6% to 79.7%)	44%	80	87 tenpai hands
Dama rate	13.8%	13.6% (8.5% to 18.7%)	51%	31	65 wins
Riichi income	2,400	2,581 (1,851 to 3,312)	19%	31	85 riichi
Riichi win rate	42.4%	44.8% (39.0% to 50.6%)	33%	31	85 riichi
Riichi deal-in rate A	12.9%	14.3% (12.4% to 16.1%)	3%	46	85 riichi
Riichi deal-in rate B	10.6%	11.0% (8.5% to 13.5%)	9%	43	85 riichi
Riichi good-wait rate	56.5%	51.2% (45.9% to 56.6%)	22%	85	85 riichi
Riichi exhaustive draw rate	28.2%	21.6% (17.2% to 26.0%)	26%	95	85 riichi
Call income	528	492 (79.79 to 905)	14%	65	96 calls
Win rate after calling	20.8%	27.4% (22.5% to 32.2%)	27%	6	96 calls
Deal-in rate after calling	5.2%	9.8% (6.4% to 13.2%)	27%	100	96 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.02	85	354 hands
Dora and red fives dealt	-0.00	65	354 hands
Draw luck	-0.8%	1	4,423 tile draws
Ura-dora luck	-0.08	26	36 riichi wins
Ippatsu rate	-5.9%	13	36 riichi wins
Avoiding a chase riichi (/first riichi)	-6.1%	16	70 first riichi
Mangan+ tsumo against dealer rate	11.4%	50	105 tsumo against
Points from luck (/game)	-8.1	6	28 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.2%	+860	+919	-59
Wins with calls	5.7%	+407	+382	+25
Dama wins	2.5%	+188	+173	+16
Deal-ins to riichi	4.8%	-368	-360	-8
Deal-ins to open hands	2.0%	-123	-203	+80
Deal-ins to dama	0.8%	-64	-101	+36
Others' tsumo	29.7%	-747	-752	+6
Other (exhaustive draws, etc.)	44.4%	+35	-60	+95
Total (per hand)		+189

Columns about this player

What sets Tenhou-i players apart? (Japanese)Watanabe Futoshi and Asakura Koshin, M.League's two former Tenhou-i. Compared on 27 metrics, what they share is speed.

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.

Nobuhiro IshibashiFormer M.League playerIn common: Immediate riichi often, First riichi often, Smaller hands
Kei NakabayashiU-NEXT PiratesIn common: Often tenpai at exhaustive draws, Few deal-ins, First riichi often
Kosuke NagaiEX FurinkazanIn common: Often tenpai at exhaustive draws, Dama 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.