Player · 49 career games · 2025-26–2026-27

Shimoishi Geki

In style, stands out for rare dama. Career record: +9.2pt per game, but allowing for luck the difference from average is not clear yet.

Calls a lot
Riichis at once

Actual / game

+9.2

49 career games

Skill estimate / game

+1.0

90% interval -4.1 to +6.1

Estimate, luck removed

+0.9

adjusted for starting hands, draws, ura-dora

Weight of the record

11%

share of the estimate from the record

Styleleague percentile, career

Average win value6,719
Riichi rate22.8%
Deal-in rate10.9%
Win rate20.8%
First riichi rate76.5%
Average riichi turn9.29
Call rate30.3%
Tenpai rate at draws39.2%
Staying in vs riichi13.8%
Push rate vs riichi (1-shanten)40.2%
Push rate vs riichi (2+ shanten)30.0%
Efficiency match rate72.3%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate74.4%
Dama rate9.7%

Colour only for metrics with a good side (red = good, blue = bad). Metrics of style, such as riichi rate, call rate and efficiency match rate, are grey. For tenpai turn, further right means later (a larger turn number). Values are estimates.

Placements49 career games, average placement 2.22

1st32.7%16×
2nd32.7%16×
3rd14.3%7×
4th20.4%10×

Riichi and callsbalance and outcome of hands with riichi or calls

Riichi income2,587
Riichi win rate45.9%
Riichi deal-in rate A14.3%
Riichi deal-in rate B11.0%
Riichi good-wait rate49.3%
Riichi draw rate18.0%
Call income526
Win rate after calling30.8%
Deal-in rate after calling10.8%
Tenpai rate after the first call23.7%

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 efficiency875
Deal-in loss634
Average win turn12.31

Deal-in loss = deal-in rate × average deal-in; net efficiency = win rate × average win − deal-in loss. Win and deal-in values include honba and riichi sticks. Win turn is the number of tiles discarded at the table when the win came ÷ 4 + 1. Win efficiency (win rate × average win) is not shown: players with a high win rate win smaller hands, the two cancel out, and differences between players cannot be told apart from chance.

Skill estimateleague percentile of the estimates

Points per game1.0
Points per game, luck removed0.9
Average placement2.47

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

Points from luck (/game)+3.1
Draw luck+0.4%
Starting hand (shanten)+0.02
Dora and red fives dealt+0.07
Ura-dora luck+0.11
Ippatsu rate-4.5%
Not being chased (/first riichi)-3.4%
Painful dealer tsumo rate12.8%

Where the points came fromchange in expected points, all stages

Own wins+51.7
Deal-ins-17.7
Others' tsumo-22.9
Ron between others-2.3
Draws+0.5

Change in expected points per game. Total +9.2pt/game (49 games).

As a table

Hand result	Hands	Total	Per game
Own wins	127	+2531.7	+51.7
Deal-ins	62	-868.0	-17.7
Others' tsumo	156	-1122.4	-22.9
Ron between others	130	-114.7	-2.3
Draws	96	+26.1	+0.5

Hand balance breakdownpoints won or lost per hand, all stages

Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	10.3%	+925	+924	+1
Wins with calls	10.2%	+577	+381	+195
Dama wins	1.8%	+163	+175	-12
Deal-ins to riichi	4.7%	-404	-361	-43
Deal-ins to open hands	4.9%	-187	-203	+16
Deal-ins to dama	1.2%	-41	-102	+61
Others' tsumo	27.3%	-787	-757	-30
Other (draws etc.)	39.6%	-62	-59	-3
Total (per hand)		+184

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

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.22	2.47 (2.35 to 2.59)	9%	84	49 games
Points per game	9.2	1.0 (-4.1 to 6.1)	11%	79	49 games
Points per game, luck removed	6.1	0.9 (-3.9 to 5.6)	14%	79	49 games
1st-place rate	32.7%	25.3% (22.3% to 28.3%)	3%	73	49 games
4th-place rate	20.4%	24.1% (18.3% to 29.9%)	18%	75	49 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	22.2%	20.8% (19.0% to 22.6%)	35%	88	571 hands
Deal-in rate	10.9%	10.9% (9.5% to 12.3%)	35%	50	571 hands
Riichi rate	22.8%	22.8% (20.7% to 24.9%)	49%	44	571 hands
Call rate	31.2%	30.3% (27.6% to 33.1%)	90%	94	571 hands
First riichi rate	77.7%	76.5% (72.6% to 80.3%)	26%	69	130 riichi
Average riichi turn	9.16	9.29 (8.99 to 9.59)	31%	65	130 riichi
Average win value	6,943	6,719 (6,287 to 7,151)	32%	77	127 wins
Average deal-in value	5,379	5,600 (5,138 to 6,061)	17%	67	62 deal-ins
Win efficiency	1,664	1,480 (1,425 to 1,535)	0%	50	571 hands
Deal-in loss	607	634 (541 to 726)	22%	57	571 hands
Net efficiency	1,057	875 (705 to 1,046)	16%	77	571 hands
Push rate vs riichi (1-shanten)	39.6%	40.2% (34.7% to 45.8%)	38%	42	96 hands facing riichi
Push rate vs riichi (2+ shanten)	34.7%	30.0% (24.8% to 35.2%)	48%	90	98 hands facing riichi
Tenpai rate after the first call	23.0%	23.7% (19.0% to 28.4%)	75%	28	178 first calls
Average win turn	11.82	12.31 (12.06 to 12.56)	13%	88	127 wins
Tenpai rate at draws	37.5%	39.2% (33.9% to 44.6%)	32%	36	96 draws
Staying in vs riichi	11.4%	13.8% (12.4% to 15.2%)	7%	22	273 hands facing riichi
Efficiency match rate	72.2%	72.3% (71.0% to 73.5%)	90%	36	3,060 discards
Average ukeire loss (tiles)	1.17	1.16 (1.08 to 1.23)	83%	81	2,939 discards
Breaking shape for value	2.0%	2.0% (1.7% to 2.4%)	74%	53	3,060 discards
Tenpai turn (luck-adjusted)	7.96	8.16 (8.02 to 8.29)	9%	26	113 tenpai hands
Immediate riichi rate	76.9%	74.4% (69.1% to 79.6%)	55%	77	113 tenpai hands
Dama rate	7.9%	9.7% (5.6% to 13.8%)	68%	15	127 wins
Riichi income	2,435	2,587 (1,945 to 3,230)	26%	40	130 riichi
Riichi win rate	45.4%	45.9% (40.9% to 50.8%)	40%	48	130 riichi
Riichi deal-in rate A	15.4%	14.3% (13.2% to 15.5%)	2%	40	130 riichi
Riichi deal-in rate B	10.8%	11.0% (9.4% to 12.7%)	5%	57	130 riichi
Riichi good-wait rate	48.5%	49.3% (44.6% to 54.1%)	35%	44	130 riichi
Riichi draw rate	16.2%	18.0% (14.2% to 21.9%)	38%	26	130 riichi
Call income	742	526 (208 to 844)	16%	71	178 calls
Win rate after calling	32.6%	30.8% (27.0% to 34.5%)	35%	75	178 calls
Deal-in rate after calling	9.6%	10.8% (8.1% to 13.4%)	40%	84	178 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.02	77	571 hands
Dora and red fives dealt	+0.07	100	571 hands
Draw luck	+0.4%	90	6,690 draws
Ura-dora luck	+0.11	96	59 riichi wins
Ippatsu rate	-4.5%	11	59 riichi wins
Not being chased (/first riichi)	-3.4%	11	101 first riichi
Painful dealer tsumo rate	12.8%	22	156 tsumo against
Points from luck (/game)	+3.1	92	49 games

By seasonRegular Season

2026-27 (2 games · skill estimate 0.0pt/game)

Style

Average win value6,606
Riichi rate22.5%
Deal-in rate10.7%
Win rate19.9%
First riichi rate76.2%
Average riichi turn9.33
Call rate27.8%
Tenpai rate at draws40.5%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)40.3%
Push rate vs riichi (2+ shanten)26.3%
Efficiency match rate73.1%
Tenpai turn (luck-adjusted)8.18
Immediate riichi rate72.0%
Dama rate12.9%

* Hatched metrics have no league rank: too few games (10 in a season, 40 in a career). The values on the right are estimates pulled toward the league average as far as the data is thin.

Where the points came from

Own wins+25.7
Others' tsumo-29.2
Ron between others+3.4
Draws+6.9

Change in expected points per game. Total +6.8pt/game (2 games).

As a table

Hand result	Hands	Total	Per game
Own wins	3	+51.4	+25.7
Others' tsumo	7	-58.4	-29.2
Ron between others	6	+6.8	+3.4
Draws	5	+13.8	+6.9

Luck

Points from luck (/game)+0.9
Draw luck+1.1%
Starting hand (shanten)-0.05
Dora and red fives dealt-0.15
Ura-dora luck+0.66
Ippatsu rate+30.3%
Not being chased (/first riichi)-8.0%
Painful dealer tsumo rate28.6%

* Hatched metrics have no league rank: too few games (10 in a season, 40 in a career). The values on the right are estimates pulled toward the league average as far as the data is thin.

Every number for 2026-27

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.00	2.50 (2.34 to 2.65)	0%	—	2 games
Points per game	7.2	0.0 (-6.6 to 6.7)	0%	—	2 games
Points per game, luck removed	6.3	0.0 (-6.5 to 6.6)	1%	—	2 games
1st-place rate	0.0%	25.0% (23.0% to 27.1%)	0%	—	2 games
4th-place rate	0.0%	24.7% (16.2% to 33.2%)	1%	—	2 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	14.3%	19.9% (16.5% to 23.3%)	2%	—	21 hands
Deal-in rate	0.0%	10.7% (8.0% to 13.4%)	2%	—	21 hands
Riichi rate	14.3%	22.5% (17.8% to 27.1%)	3%	—	21 hands
Call rate	42.9%	27.8% (18.5% to 37.1%)	25%	—	21 hands
First riichi rate	100.0%	76.2% (69.7% to 82.7%)	1%	—	3 riichi
Average riichi turn	7.67	9.33 (8.77 to 9.88)	1%	—	3 riichi
Average win value	6,000	6,606 (5,807 to 7,405)	1%	—	3 wins
Win efficiency	995	1,480 (1,456 to 1,504)	0%	—	21 hands
Deal-in loss	0.00	634 (491 to 778)	1%	—	21 hands
Net efficiency	995	841 (597 to 1,084)	1%	—	21 hands
Push rate vs riichi (1-shanten)	25.0%	40.3% (29.4% to 51.1%)	3%	—	4 hands facing riichi
Push rate vs riichi (2+ shanten)	40.0%	26.3% (15.2% to 37.3%)	5%	—	5 hands facing riichi
Tenpai rate after the first call	11.1%	23.8% (11.3% to 36.2%)	13%	—	9 first calls
Average win turn	13.17	12.39 (12.04 to 12.74)	0%	—	3 wins
Tenpai rate at draws	60.0%	40.5% (31.1% to 49.9%)	2%	—	5 draws
Staying in vs riichi	8.3%	14.0% (12.4% to 15.6%)	0%	—	12 hands facing riichi
Efficiency match rate	73.8%	73.1% (68.7% to 77.4%)	23%	—	103 discards
Average ukeire loss (tiles)	1.13	1.07 (0.82 to 1.32)	15%	—	101 discards
Breaking shape for value	2.9%	2.1% (1.1% to 3.1%)	9%	—	103 discards
Tenpai turn (luck-adjusted)	8.40	8.18 (8.03 to 8.32)	0%	—	3 tenpai hands
Immediate riichi rate	93.2%	72.0% (59.4% to 84.6%)	3%	—	3 tenpai hands
Dama rate	0.0%	12.9% (1.5% to 24.3%)	5%	—	3 wins
Riichi income	6,433	2,671 (1,591 to 3,750)	1%	—	3 riichi
Riichi win rate	66.7%	46.5% (36.3% to 56.6%)	2%	—	3 riichi
Riichi deal-in rate A	0.0%	14.3% (13.9% to 14.7%)	0%	—	3 riichi
Riichi deal-in rate B	0.0%	11.0% (9.8% to 12.2%)	0%	—	3 riichi
Riichi good-wait rate	33.3%	49.6% (40.4% to 58.8%)	1%	—	3 riichi
Riichi draw rate	33.3%	19.4% (11.7% to 27.0%)	1%	—	3 riichi
Call income	-678	474 (27.92 to 920)	1%	—	9 calls
Win rate after calling	11.1%	29.3% (22.4% to 36.2%)	3%	—	9 calls
Deal-in rate after calling	0.0%	11.2% (5.9% to 16.4%)	3%	—	9 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	-0.05	—	21 hands
Dora and red fives dealt	-0.15	—	21 hands
Draw luck	+1.1%	—	269 draws
Ura-dora luck	+0.66	—	2 riichi wins
Ippatsu rate	+30.3%	—	2 riichi wins
Not being chased (/first riichi)	-8.0%	—	3 first riichi
Painful dealer tsumo rate	28.6%	—	7 tsumo against
Points from luck (/game)	+0.9	—	2 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	9.5%	+824	+924	-100
Wins with calls	4.8%	+171	+381	-210
Dama wins	0.0%	0	+175	-175
Deal-ins to riichi	0.0%	0	-361	+361
Deal-ins to open hands	0.0%	0	-203	+203
Deal-ins to dama	0.0%	0	-102	+102
Others' tsumo	33.3%	-929	-757	-172
Other (draws etc.)	52.4%	+143	-59	+202
Total (per hand)		+210

2025-26 (38 games · skill estimate 1.4pt/game)

Style

Average win value6,606
Riichi rate23.4%
Deal-in rate10.8%
Win rate21.5%
First riichi rate76.5%
Average riichi turn9.36
Call rate29.2%
Tenpai rate at draws39.8%
Staying in vs riichi14.0%
Push rate vs riichi (1-shanten)42.1%
Push rate vs riichi (2+ shanten)28.3%
Efficiency match rate72.5%
Tenpai turn (luck-adjusted)8.16
Immediate riichi rate72.7%
Dama rate10.1%

Where the points came from

Own wins+55.6
Deal-ins-16.1
Others' tsumo-21.2
Ron between others-2.4
Draws+0.3

Change in expected points per game. Total +16.3pt/game (38 games).

As a table

Hand result	Hands	Total	Per game
Own wins	109	+2113.0	+55.6
Deal-ins	45	-611.7	-16.1
Others' tsumo	110	-804.5	-21.2
Ron between others	101	-91.9	-2.4
Draws	69	+12.9	+0.3

Luck

Points from luck (/game)+5.7
Draw luck+0.3%
Starting hand (shanten)+0.03
Dora and red fives dealt+0.09
Ura-dora luck+0.12
Ippatsu rate-7.7%
Not being chased (/first riichi)-6.4%
Painful dealer tsumo rate14.5%

Every number for 2025-26

Results
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Average placement	2.08	2.47 (2.34 to 2.59)	7%	100	38 games
Points per game	16.2	1.4 (-4.0 to 6.7)	9%	100	38 games
Points per game, luck removed	10.5	1.2 (-3.8 to 6.2)	11%	97	38 games
1st-place rate	36.8%	25.4% (22.3% to 28.4%)	2%	95	38 games
4th-place rate	15.8%	23.6% (17.4% to 29.7%)	15%	92	38 games

Style
Metric	Actual	Estimate (90% interval)	Weight of the record	Percentile	Count
Win rate	25.1%	21.5% (19.5% to 23.5%)	29%	100	434 hands
Deal-in rate	10.4%	10.8% (9.2% to 12.3%)	29%	72	434 hands
Riichi rate	24.2%	23.4% (21.1% to 25.7%)	42%	75	434 hands
Call rate	30.2%	29.2% (26.2% to 32.3%)	87%	87	434 hands
First riichi rate	78.1%	76.5% (72.4% to 80.6%)	22%	77	105 riichi
Average riichi turn	9.38	9.36 (9.03 to 9.68)	27%	34	105 riichi
Average win value	6,589	6,606 (6,150 to 7,062)	29%	62	109 wins
Average deal-in value	4,762	5,532 (5,036 to 6,029)	13%	90	45 deal-ins
Win efficiency	1,791	1,480 (1,425 to 1,536)	0%	50	434 hands
Deal-in loss	512	619 (518 to 719)	17%	82	434 hands
Net efficiency	1,278	896 (715 to 1,078)	13%	100	434 hands
Push rate vs riichi (1-shanten)	45.2%	42.1% (36.0% to 48.3%)	32%	72	73 hands facing riichi
Push rate vs riichi (2+ shanten)	32.4%	28.3% (22.3% to 34.2%)	39%	80	68 hands facing riichi
Tenpai rate after the first call	27.5%	26.9% (21.7% to 32.2%)	69%	75	131 first calls
Average win turn	11.86	12.32 (12.06 to 12.59)	12%	92	109 wins
Tenpai rate at draws	39.1%	39.8% (33.8% to 45.8%)	25%	37	69 draws
Staying in vs riichi	14.1%	14.0% (12.6% to 15.5%)	5%	54	205 hands facing riichi
Efficiency match rate	72.4%	72.5% (71.1% to 73.9%)	87%	21	2,341 discards
Average ukeire loss (tiles)	1.15	1.13 (1.04 to 1.22)	79%	90	2,246 discards
Breaking shape for value	1.8%	1.9% (1.5% to 2.3%)	68%	52	2,341 discards
Tenpai turn (luck-adjusted)	8.01	8.16 (8.02 to 8.30)	7%	31	93 tenpai hands
Immediate riichi rate	74.0%	72.7% (67.0% to 78.3%)	50%	54	93 tenpai hands
Dama rate	8.3%	10.1% (5.8% to 14.5%)	65%	26	109 wins
Riichi income	2,889	2,695 (2,007 to 3,383)	22%	67	105 riichi
Riichi win rate	47.6%	46.7% (41.4% to 52.0%)	35%	47	105 riichi
Riichi deal-in rate A	13.3%	14.3% (13.2% to 15.5%)	1%	67	105 riichi
Riichi deal-in rate B	9.5%	11.0% (9.3% to 12.7%)	4%	72	105 riichi
Riichi good-wait rate	48.6%	49.4% (44.3% to 54.6%)	30%	52	105 riichi
Riichi draw rate	15.2%	17.9% (13.7% to 22.0%)	33%	21	105 riichi
Call income	867	532 (191 to 873)	12%	82	131 calls
Win rate after calling	38.2%	32.2% (28.0% to 36.3%)	28%	95	131 calls
Deal-in rate after calling	9.9%	11.0% (8.0% to 14.0%)	33%	73	131 calls

Luck (difference from the league average)
Metric	Actual	Percentile	Count
Starting hand (shanten)	+0.03	70	434 hands
Dora and red fives dealt	+0.09	100	434 hands
Draw luck	+0.3%	62	5,070 draws
Ura-dora luck	+0.12	77	50 riichi wins
Ippatsu rate	-7.7%	14	50 riichi wins
Not being chased (/first riichi)	-6.4%	14	82 first riichi
Painful dealer tsumo rate	14.5%	19	110 tsumo against
Points from luck (/game)	+5.7	92	38 games

Hand balance breakdown
Category	Frequency	Balance per hand	League average	Difference
Wins with riichi	11.5%	+1,004	+924	+81
Wins with calls	11.5%	+576	+381	+195
Dama wins	2.1%	+210	+175	+35
Deal-ins to riichi	4.4%	-320	-361	+41
Deal-ins to open hands	5.1%	-198	-203	+5
Deal-ins to dama	0.9%	-18	-102	+84
Others' tsumo	25.3%	-713	-757	+44
Other (draws etc.)	39.2%	-75	-59	-16
Total (per hand)		+468

Players with a similar styleclosest career style metrics first

Asai TakakiFormer M.League player
Asami MakiAkasaka DrivensIn common: Dama rarely, Calls a lot
Daigo HiroshiSEGA SAMMY PhoenixIn common: Dama rarely, High win rate

* 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 the data can vouch for weigh more. It shows only how close the styles are, not which is better. The differences are often slight, and the order could change.