2017 World Riichi Championship

2017 World Riichi Championship
	; WRC logo
Location	Las Vegas, Nevada, USA
Host	USPML
Date	October 4-8, 2017
Type	World championship
Player count	224 players
Finalists
Champion	Masaharu TOMOTAKE
Runner up	Ryuichi MASUDA
Third	Hiroyuki YAMADA
Fourth	Yutaka NAKAMURA

The 2017 World Riichi Championship is a Japanese mahjong tournament that took place from October 4-8, 2017. The tournament was held in Las Vegas, Nevada at the Palms Casino Resort. This is the second edition of the World Riichi Championship series, hosted by the United States Professional Mahjong League (USPML).

Rules in effect

WRC top 4 (left-right): Masuda, Yamada, Tomotake with trophy, and Nakamura. Jenn as MC and translator.

The rules in effect will be the World Riichi Rules, nearly identical to the 2014 WRC, with a minor revision in 2015.

Kuitan ari
Akadora nashi
Atamahane ari
30000 point start, tobi nashi
Oka nashi ("30000 point return")
Negative score does not end the game
15/5 Uma
Kuikae nashi
None of the following (all nashi): Abortive draws of any kind, Agari yame, Nagashi mangan, Kazoe yakuman, Multiple yakuman
False pon/kan/chii call results in dead hand
Chombo is 20 points deducted from the overall score of the player. It does not effect the current game, other than forcing a reshuffle and redealing of the tiles.
90-minute time limit (75 + 15 for current and last hand) applied

Quota distribution

As of February 12, 2017, the distribution of the 240 available seats has been made as follows.

The rough split is currently fairly evenly distributed between four groups: Europe, Japan, North America, WRC (invites and players who got to top 32 in WRC 2014) + RoW.

—World Riichi Championship, on Facebook

Actual participation

Country participation
Country	Number	Invites	Total
USA	44	2	46
CAN	2	0	2
MEX	1	0	1
North America	47	2	49
RUS	5	0	5
DEN	9	0	9
GER	7	0	7
GBR	9	2	11
NED	5	0	5
POL	6	0	6
AUT	5	1	6
FIN	7	0	7
FRA	6	2	8
SVK	4	0	4
SWE	4	0	4
UKR	3	0	3
HUN	1	0	1
SUI	0	0	0
Europe	73	5	78
JPN (Japan)	80	0	80
ARG	3	0	3
AUS	2	0	2
BRA	2	0	2
CHN	3	0	3
CHL	1	0	1
IRN	1	0	1
KOR	0	0	0
NOR (non-EMA)	1	0	1
SGP	4	0	4
Rest of World	18	0	17
Total			224

Notes:
South Korea and Switzerland did have registered participants that had to desist. Total attendance is thus 224 players from 25 countries (not 27).

Tournament format

Players will play out 9 hanchan. They will be subdivided into Groups A and Group B. Out of the total participant count, the top 32 will proceed into an elimination tournament. At each stage, they will play 2 hanchan. Tournament days 1 and 2 will have 4 hanchan each, while day 3 will have the 9th hanchan immediately followed by the first two stages of the elimination tournament. Day 4 will include the semifinal and the final.

Players who did not make it into the top 32 had the option to play in a four game tonpuusen side event. In addition, the Japanese players gave mahjong strategy lessons for a second side event.

Participant list and preliminary results

Player List				Preliminary Results
#	Last Name	First Name	Country	H1	H2	H3	H4	H5	H6	H7	H8	H9	Pen	Total	Rank
	TOMOTAKE	Masaharu	JPN	64.8	24.8	18.9	-18.7	32	35.7	31.9	23.6	48.2		261.2	1
	YAMADA	Hiroyuki	JPN	44.3	36.1	52	44.8	-5.2	43.7	14.7	-37.2	8.5		201.7	2
	NISHIJIMA	Kazuhiko	JPN	-8.3	41.5	-10.1	3.3	53.3	27.8	41.9	23.1	28.3		200.8	3
	NAKAMURA	Yutaka	JPN	24.4	10.5	38	24.3	22.4	30.4	13.2	12.5	20.5		196.2	4
	MORIYAMA	Shigekazu	JPN	17.8	77.8	33.1	17.3	23.6	-1	-9.8	-8.7	36.9		187	5
	YOSHIDA	Yukio	JPN	36.2	21.7	1.6	17.7	13.4	29	34.4	-7	27.4		174.4	6
	WEINGUNY	Lena	AUT	-16.7	11.1	51	20.4	5.8	4	35.5	28.8	32.5		172.4	7
	TAKEDA	Yuki	JPN	31.6	71.3	12.5	48.5	27.3	5.5	-18	4.4	-11.3		171.8	8
	KONNO	Shintaro	JPN	-30	-23.3	31	38.2	-21.1	72.9	31.6	48.8	-6.8		141.3	9
	NIKAIDO	Aki	JPN	-9.2	-5.5	-6.8	24.5	57.6	-2.7	20.6	27.1	32.6		138.2	10
	SUGIURA	Kansuke	JPN	10	-7.9	36.5	32.9	6.9	32.6	5.7	-34.6	50		132.1	11
	SAKAI	Hidetaka	JPN	-7.5	51.1	31.9	12.8	28.1	-30.8	-12.7	29	26.7		128.6	12
	KUROSAWA	Kouichirou	JPN	15.3	-5.9	24.8	37.2	-9.9	39.2	2.2	44.8	-20		127.7	13
	MITO	Ryosuke	JPN	19.6	4.4	33.3	-12.1	15	7.6	15.3	27.8	13.5		124.4	14
	YAMADA	Manabu	JPN	-1.5	79.4	3.6	1.2	-17	18.7	26	8.2	5.7		124.3	15
	AOI	Yurika	JPN	26.8	5.7	14.5	29	48.6	35.7	-12.7	8.9	-32.3		124.2	16
	UOTANI	Yuumi	JPN	4.8	10.3	38.3	-18.9	-9.9	31.7	35.9	20	8.4		120.6	17
	KONDO	Kazuo	JPN	0.5	11.2	-31.5	28.8	49.3	51.7	-9.6	36.9	-17.5		119.8	18
	YAMAWAKI	Chifumi	JPN	-28.2	1.5	11.9	26.9	-6	33	11.6	35.7	28.9		115.3	19
	NAKAMURA	Shingo	JPN	22.5	-63.6	24.8	11.6	24.8	28	27.6	2	35.8		113.5	20
	KIKUHARA	Masato	JPN	24.1	29.6	9.2	1.8	-36.8	28.4	-5	25.7	31.7		108.7	21
	HIRVOLA	Ossi	FIN	-6.8	-1.9	16.4	30.7	34.9	-9.7	21.9	16.5	6.2		108.2	22
	LESTER	Martin	GBR	29	40.9	22.1	4.2	3.3	24.4	15.3	-26	-5.4		107.8	23
	GULMANS	Martijn	NED	14.1	20.5	20.5	34.3	24.3	-39.3	25.2	-10.5	18.7		107.8	24
	MASUDA	Ryuichi	JPN	11.7	23.3	26.9	13.4	6.8	14.3	15.2	20.8	-25.7		106.7	25
	TAKEDA	Katsuo	USA	8.8	18.8	10.4	23.1	25.9	29.4	28.9	-11.8	-27.9		105.6	26
	KUSABA	Tomoko	JPN	-3.6	9.8	13.4	29.5	37	8.4	-23.3	12.6	21.3		105.1	27
	AKASHI	Minako	JPN	-5	19	29	29.2	32	13	9	-11.3	-11		103.9	28
	FRANCKS	Zachary	USA	29.7	-7.5	5.1	11.9	37.4	-6.8	19.3	20.3	14.5	-20	103.9	29
	TOMOZOE	Toshiyuki	JPN	-34.2	20.3	-8.1	32.5	29.4	11.7	-4.1	33.8	21.5		102.8	30
	KUROKI	Masao	JPN	36.6	-0.5	54	35.5	8.1	27.7	-8.5	-12.6	-41.8		98.5	31
	UCHIKAWA	Kotaro	JPN	1.9	-14.9	7.9	25.6	-16.1	-10.8	56.4	13.9	32.8		96.7	32
	HAYAMA	Makoto	JPN	43.8	-32.3	-14.1	-30.8	11.4	34.3	48.9	2.5	32.8		96.5	33
	SAITO	Shun	JPN	-15.8	7.1	-3.9	39.7	27.3	16.3	55.1	-4.2	-25.2		96.4	34
	TOKUDA	Kenneth	JPN	13.5	-14.7	27	8	34	-6.4	29.9	9.1	-5.2		95.2	35
	ASAPIN		JPN	70.3	-8.8	10.5	-42.4	22.5	6.6	29.8	10.3	-6.6		92.2	36
	SHIRATORI	Sho	JPN	31.2	-8.8	20.9	4.6	9.4	20.8	-7.2	-6.6	24.1		88.4	37
	UCHIDA	Minori	JPN	8.9	9.7	23.2	19.8	-24.6	5.4	18.2	-3.4	29.6		86.8	38
	KAKIGI	Kentaro	JPN	54.9	25.2	-10.2	8.9	-13	15.8	-9.4	26.5	-12.8		85.9	39
	SAKURAI	Takahiro	USA	1.9	9.7	43.8	8.6	20.7	-21.9	-25.1	26.9	20.3		84.9	40
	SHIBATA	Yoshikazu	JPN	3.1	8	-49.3	7.6	-11	-12.4	14.2	88	33.6	-2	79.8	41
	SHAN	Yuanqi	FIN	-6.6	27.2	34.2	0.5	-8.4	-6.9	31.8	28	-21.3		78.5	42
	RATSIMANDRESY	Joel	FRA	-3.5	0.3	22.2	16.7	29.7	0.8	-31	34.1	7.3		76.6	43
	HIN	Tham	SGP	28.9	35.8	-8	-14.5	7.2	-18.9	45.4	8.6	-11.9		72.6	44
	MORISHITA	Masato	JPN	-18.5	-29.4	36.5	0.2	-7.3	34.4	14.9	27.6	13.8		72.2	45
	LABAŠ	Matej	SVK	13.4	12.5	23.4	10.4	8.1	-17.6	-4.6	-22.8	45.7		68.5	46
	EBEJER	Aaron	USA	37.3	5.4	-13.2	37.9	-7.1	14.7	-41	51.7	-19.1		66.6	47
	NARA	Keijun	JPN	6.3	12.8	42.1	14.8	-24.1	-34.7	23.7	-8.9	33.9		65.9	48
	POH	Wolfram	SGP	26.3	44.9	29.5	-27.2	1.6	19.1	-26.5	8.6	-13.1		63.2	49
	LIU-KRASON	George	USA	-23.7	7.7	8.6	10	23.5	29.9	7.5	-24.7	24.2		63	50
	TEZUKA	Sakiku	JPN	-10.7	-9.2	32.4	5.6	12.8	53.9	-9.5	-4.3	-8.3		62.7	51
	KIM	Mio	JPN	3.2	5.4	-20.9	26.8	3.7	22.1	9.8	29.4	-18.6		60.9	52
	KENNEDY	Ty	USA	18.7	-15.8	-10	3	23.7	41.3	6.1	-7.7	1.3		60.6	53
	LEMOINE	Mark	SWE	-6.6	26.9	-26.7	-13.2	-36.6	6.8	22.1	48.4	38.3		59.4	54
	ITO	Yuko	JPN	12.4	-34.8	28.3	-11.5	-36.7	16.7	10.8	37.3	35.7		58.2	55
	SANCHES	Amauri	BRA	37.2	5.9	33.5	-7.2	-12	12.6	28.3	-22.6	-17.8		57.9	56
	AOYAMA	Shuusuke	JPN	3.6	23	-16	-10.9	-39.3	22.8	35.3	12.2	25.9		56.6	57
	MATUDA	Maya	JPN	-23.8	-7.7	39	10.9	0.9	50	-28.5	4.6	10.9		56.3	58
	MONAKOV	Ilya	RUS	-37.1	24.6	4	-7.1	12.1	34.9	3.3	34.4	-17.2		51.9	59
	ZUBENKO	Anna	UKR	20	15.8	-28.2	12.3	-34.1	44.7	41.1	-27.7	6.4		50.3	60
	KYAKUNO	Naoki	JPN	-37	8.7	9.2	-14.4	48.1	31.1	-11.7	10.6	4.8		49.4	61
	NØHR	Jesper	DEN	30.2	-14.2	39.9	-28.8	7.5	20.3	-40.8	4.2	30.1		48.4	62
	ADAMS	Ryan	USA	8.8	-32.7	20.8	49.8	9.8	-10.9	-28.6	44	-13		48	63
	KOZIMA	Yu	JPN	-27.8	-33.3	-38.9	24.9	28.9	-5.1	26.3	63.5	6.5		45	64
	IGARASHI	Takeshi	JPN	-3.1	-24.9	-4.8	-10.1	32.8	23.2	27.4	11.3	-9.3		42.5	65
	CHRISTIANSEN	Freddy	DEN	13.9	-30.6	13.4	-10.6	32.7	40	-2.6	10.6	-25		41.8	66
	TANIGUCHI	Kouhei	JPN	13.3	-15.5	-25.8	-25.2	22.7	39.1	22.3	-9.9	20.3		41.3	67
	HYUGA	Kyosuke	JPN	30	1.6	-7.6	30.8	9	-22.1	-13	-20.9	33.3		41.1	68
	BORYSIAK	Jacek	POL	-17.4	1.7	40.1	11.6	6.5	-41.7	6	-10.5	43.8		40.1	69
	TAI	Austin	USA	10.9	-13.8	10.2	-7.9	28.4	-25.1	12.5	26.5	-3		38.7	70
	YAMAI	Hiroshi	JPN	-8.9	40	9.5	-6.3	44	-6.7	-2	-39.9	8.9		38.6	71
	JIANG	Zixuan	USA	25.2	26.7	6.6	11.7	12.6	10.3	-31.6	-10.3	-12.8		38.4	72
	LENSU	Konsta	FIN	7.9	24	-39.6	25.5	29.5	23.8	-1.6	-22	-9.2		38.3	73
	LEE	Bing Ho	USA	25.5	-11.5	18.7	-13.5	23.4	39.1	-44.9	5.5	-5.1		37.2	74
	NELSON	Evan	USA	18	25.2	-10.6	14.4	6.6	3.7	-8.4	-24.7	31.7	-20	35.9	75
	TO	Anthony	AUS	-6.7	27.4	20	-32.3	40.5	-30.1	39.5	-8.4	-14.3		35.6	76
	ROJAS	Felipe	CHL	-36.5	11.5	-23.6	49.8	-21.2	22.4	-15.4	35.1	12.9		35	77
	DRURY	Shaun	GBR	3.1	32	25.4	22	4.4	13.6	-29.6	-27.7	10.5	-20	33.7	78
	HAHN	Timur	GER	14.1	9.6	28.5	-12.5	-23.5	-10.9	25	10.6	-7.3		33.6	79
	ROSTVED	Frank	DEN	19.3	-32.6	-27.8	-8.3	3	-18.7	37.4	33.1	27.8		33.2	80
	DINNYESI	Zoltan	HUN	7.9	-13.7	-15.3	13.9	6.8	42.8	-32.5	32.7	-9.5		33.1	81
	SETOKUMA	Naoki	JPN	20.1	2.1	18.3	31.1	-5.8	-9	-3.4	2.6	-23.5		32.5	82
	ABE	Kenichi	JPN	-3.8	11.6	6.8	40.8	-33.5	22.5	6.1	-27.7	9.6		32.4	83
	NAKAMURA	Tsuyoshi	JPN	-20	29	47.5	-10.6	12	-30.3	35	-52.4	21.7		31.9	84
	JERGUŠ	Juraj	SVK	34	31	-29.2	35	-37.4	14	-32.3	28.8	-13.4		30.5	85
	ŻUK	Bartosz	POL	-24.4	-17.5	-26.4	41.7	8.5	30.1	31.5	-25.2	9.9		28.2	86
	SAKAMOTO	Gemma	GBR	31.2	-55.9	34.1	5.8	39.5	13.1	5.5	-55.2	27.4	-20	25.5	87
	SONG	Panjing	CHN	6	49.8	30.9	-45.7	22.7	-22.4	26.6	-33.8	10.5	-20	24.6	88
	SUGAWARA	Hiroe	JPN	28.8	-45.6	23.2	6.3	-26.3	8.9	-16.7	9.9	36		24.5	89
	CLARKE	David	GBR	-12.5	16.1	-26.4	10	3.8	29.4	-31.9	0.6	34.3		23.4	90
	ISHIHARA	Makoto	JPN	7.8	-7.7	-23.7	21.7	19.4	5.9	-30.8	35	-4.3		23.3	91
	KIRIYAMA	Noriyuki	JPN	43.9	24.3	5.1	-8.7	8.4	9.6	-8	-26.1	-27.9		20.6	92
	FUJISAKI	Satoshi	JPN	47.3	-3.6	-5.1	12.1	-8.3	-9.6	8.8	-12.9	-8.8		19.9	93
	OSIPOV	Kirill	FIN	-5.4	-12.7	47.7	10.2	-7.5	11.9	-23.2	-25.3	23.9		19.6	94
	YOSHIDA	Tadashi	JPN	-19	27.1	17.3	11.4	-6	10.2	10.1	-40.1	17.5	-9	19.5	95
	BRAGG	James	USA	24.1	-10.8	-13.7	-8.3	0	-11.8	6.9	6.6	20.3		13.3	96
	KAWATANI	Eigo	JPN	20.8	30.7	39.3	-31.6	-23.3	-13.6	-10.3	-5.6	4.8		11.2	97
	IDE	Kohei	JPN	22.5	-21	36	-10.2	-57.3	18.6	-29.7	21.1	31		11	98
	TAKAMIYA	Mari	JPN	-5.9	-25.5	-9.6	-5.7	-18.6	8.8	8.4	27.6	31.4		10.9	99
	FUKUMITSU	Masao	JPN	42.7	42.9	42.4	-27	-37.7	-31.1	24.2	-29.6	-16.3		10.5	100
	WOZNIAK	Mateusz	POL	-30.5	-7.2	-29.6	24.3	35.2	-10.8	30.4	3.4	-5.8		9.4	101
	YOSHINO	Atsushi	JPN	45	-22.5	33.8	37.8	-12.4	-4.6	-49.5	15	-34.1		8.5	102
	MENEGAZZO	Gian	BRA	-21.7	-11.2	-12.7	18.2	5.8	24	-7.5	-1.8	34	-20	7.1	103
	LI	Wenlong	CHN	-44.3	12.4	-0.2	-49	42.6	-26.3	24.3	23.9	23.5		6.9	104
	GERMEYS	Jasper	SWE	-11.8	33.6	-17.8	-14	10.1	52.7	-9.9	-25.9	-11.2		5.8	105
	CHEN	Chaolei	FRA	-2.6	-22.1	-35	31.3	-12.7	4.1	13.1	-9.7	38.3		4.7	106
	IGA	Norio	JPN	17.9	4.9	-20.7	-8.9	-18	6.4	-4.6	27.8	-1.6		3.2	107
	AOKI	Saya	JPN	9.4	-11.3	32.5	-30	-23.5	1.8	-3.8	-8.4	35.7		2.4	108
	NISHIKAWA	Toshiko	JPN	-8	-4.7	17.7	-35.2	19.4	4	11.8	7.7	-11.9		0.8	109
	HIRANO	Ryoei	JPN	14	-16.2	-7.1	51.7	26.7	-20.9	13.1	-35.1	-26.2		0	110
	YARCHUK	Anton	UKR	-60.6	26.4	-5	-11	-2.7	5.2	29.7	13.5	3.2		-1.3	111
	PERSSON	Stefan	SWE	-33.7	-13	23	9.3	-55.5	3.7	-2.6	60.2	6.5		-2.1	112
	CHO	Toshimasa	JPN	-10.2	-10	40.2	12.7	23.5	-11.1	-44.8	28.5	-30.9		-2.1	113
	KLAAR	Martijn	NED	-54.3	7.1	-6.9	-38.8	6.6	47.8	24.4	2.6	8.1		-3.4	114
	MAIER	Roland	AUT	-24.1	48.4	-8.7	-31.5	8.4	-6.9	17.9	-21.7	13.8		-4.4	115
	TOMISSER	Manuel	AUT	29.1	3.7	11.4	5.8	14.2	23.6	-43.2	-26.6	-25.4		-7.4	116
	IVANOV	Maxim	UKR	-20.3	-35.3	-35.1	17.7	-32.1	11	38.3	23.9	26.2	-2	-7.7	117
	SAITO	Maiko	JPN	12.1	-29.3	52.8	-25.1	34.1	13.2	-7.3	-35.9	-23.1		-8.5	118
	MAEHARA	Yudai	JPN	51.6	-47.4	-14.1	10	24.1	3.6	-28.6	31.7	-41		-10.1	119
	ALLOATI	Matias	ARG	-5.3	21.5	-5.4	-21.9	-16.7	-15.9	7.6	15.5	10.3		-10.3	120
	MCDONELL	Charles	USA	-28.7	42.1	23	-6.5	-27.4	-0.8	-22.2	45.7	-37.2		-12	121
	ZAMORA	Shane	USA	-11.1	-24	6.4	15.8	28.2	13.4	8.2	-24.9	-24		-12	122
	NAKAMURA	Jyunko	USA	-9.2	36.8	-19.2	44	20.7	-14.9	-26.4	-35.3	-8.6		-12.1	123
	PALMERO	Lucas	ARG	3.6	9	-10.5	14.6	7.5	19.9	-39	-25.6	6		-14.5	124
	SCHEYER	Allon	USA	46.4	12.3	-21.2	-19.1	13.2	2.5	-26.4	-2.4	-20.6		-15.3	125
	KIYOHARA	Tsugumitsu	JPN	17.2	-12.3	44.3	-2.5	-50.9	-20.8	2.2	33.5	-26.2		-15.5	126
	DI DOMENICO	Annabel	FRA	30.3	-34.9	36.4	-15.9	-8.4	-5.1	-26.7	-1.1	8.7		-16.7	127
	LI	Jian	CHN	-7.3	-7.8	45.5	-6.9	35	25.1	-23.2	-45.7	-34.2		-19.5	128
	SIBATA	Hiro	JPN	29.1	11.5	14.8	-26.3	0	-13.4	-23.9	10.1	-21.7		-19.8	129
	MIYAUCHI	Kozue	JPN	35.1	21.1	11.2	-36	-9.9	33.6	-25.7	-22.3	-27.8		-20.7	130
	LI	Hong	GBR	6	-1.2	22.7	-12.6	-33.3	-24.5	-15	27.5	8.7		-21.7	131
	STEENHOLM	Isabel	DEN	3.9	-9.5	-17.4	8.3	28.7	7	-26.4	21.2	-37.8		-22	132
	JER	Cheo Kae	SGP	3.7	29.6	-13.2	-37.3	-11.8	-25	32.7	31.7	-33.7		-23.3	133
	KOSHIMOTO	Tina	USA	-53.4	53.3	10	28.3	-32.3	-9.2	-22.6	10.5	-8.2		-23.6	134
	LIU	Yixuan	USA	35	-26.9	42.5	-28.2	9.7	-11.6	23.3	-42.5	-25.6		-24.3	135
	PENG	Wang	SGP	-13.1	-23.7	-33.1	-4.6	29.8	-3.8	-7.4	-22.1	52.7		-25.3	136
	IWAI	Tomoaki	JPN	27	23.1	-14.1	18.1	-8.2	-27.3	-41.9	-8.8	5.7		-26.4	137
	MCLEOD	Michael	USA	-34	-33.5	3.7	19	36.9	-49.3	-2.1	-10.9	43.7		-26.5	138
	HAASBROEK	Nicole	NED	-5.9	-21.2	9.5	29.1	-22.1	-34.5	15.5	12.4	-9.9		-27.1	139
	NELSON	Garthe	JPN	-22.1	7	36.5	38.6	-13.1	-40.3	-51.1	23	-5.9		-27.4	140
	LETH	Henrik	DEN	10.3	49.2	-24	-24.7	23.2	-44.1	-53.8	10.7	25.5		-27.7	141
	CAO	Olivier	FRA	17.7	-2.8	-14.6	-12.5	5.2	-42.2	-5.2	25.1	1.6		-27.7	142
	NEBILAK	Kira	USA	-10.2	-8.6	7	-29.4	31.4	-5.7	8	7.8	-29.8		-29.5	143
	NISHIKAWA	Jun	JPN	-7.5	19.1	14.5	6.2	-10	-13.6	24.8	-41.7	-21.8		-30	144
	TSUCHIYA	Yukihiro	JPN	4.8	11.5	-19.9	-9.5	-38.2	-31	25.1	1.9	25		-30.3	145
	ROWE	Christopher	GBR	-12	12.6	9.1	-40.4	-31	33	15.9	-2.4	-15.9		-31.1	146
	SHI	Kevin	USA	-28.2	28.8	-36	21.8	-27.2	16.2	-25.8	-9.8	27.6		-32.6	147
	MORENO	Daniel	USA	43.9	-11	-7.6	-5.2	35.2	-36.4	-9.9	-11.5	-32.9		-35.4	148
	FURUHASHI	Takashi	JPN	28.5	-32.5	6.3	-16.6	-26.2	-30.2	25.7	-10.1	18.2		-36.9	149
	HORVAT	Vadim	FRA	24.6	-3.3	-18.5	-39.2	-25.1	3.1	3.6	11.1	4.9		-38.8	150
	WHITCOMB	Andrew	USA	39.3	-27.5	23	-21.1	-8.4	5.1	-22.1	4.8	-33.4		-40.3	151
	JENN		JPN	-21.4	54.9	-26.1	32.2	-11.4	-49.6	-6.3	8.2	-21.3		-40.8	152
	ESCHENBURG	Axel	GER	-4.9	-21.7	-30.2	11.4	-14.2	10.7	6.6	8.3	-7.2		-41.2	153
	TOJYOU	Rio	JPN	-29.2	20.6	18.6	-13.2	-34.6	19.2	-21.7	30	-31.1		-41.4	154
	HANNIKAINEN	Janne	FIN	-17.8	-9.6	-29.7	-18.2	-20.3	-22.8	24	40.5	11.7		-42.2	155
	LUGOVKIN	Mikhail	RUS	2.8	29.5	-3.7	-2.1	-22.9	-21.6	48.1	-22.5	-33.5	-20	-45.9	156
	MYERS	Matt	USA	-40.1	-32.2	-38.5	8.7	19.5	5.3	19.9	-14.4	25.8		-46	157
	WAKULUK	Marek	POL	-21.6	23.8	10.8	-50.8	52.6	-22.1	1.2	-11.5	-9.1	-20	-46.7	158
	MCCORMACK	Jaben	USA	-35.5	51.3	-14.5	-28.1	-6.7	-24.1	12.8	-2.7	20.5	-20	-47	159
	TONG	Tong	JPN	10	3	-37.4	-30	-49.2	20.2	-1.6	-7.5	42.9		-49.6	160
	ROYER	Sylvain	USA	21.9	7.3	-18.3	48.6	-25.1	-23.4	9.6	-33.3	-38.1		-50.8	161
	DIZON	Edwin	USA	3.2	16.3	-40.5	22.8	-15.2	-5.2	9.3	-9.2	-33.7		-52.2	162
	OLSSON	Fritiof	SWE	-17.9	-19.8	-7.2	12.9	-23.4	-3.7	-0.3	-9.6	16.2		-52.8	163
	WANKMULLER	Alexander	AUT	4.5	-15.6	-44.7	13.6	7.5	-9.7	9.9	22.1	-41.1		-53.5	164
	DONAGHY	Michael	GBR	-36.7	18.7	8.4	-6.2	-23.4	-10.3	19.8	-40.8	12.4		-58.1	165
	LUI	Kinyan	USA	13.6	-27.7	-11.7	-39.2	8.3	7.2	13.5	-11.7	-13.7		-61.4	166
	ANDERSEN	Morten	DEN	24.2	-15.5	-36	31.3	-21.4	-42.4	-6	35.5	-32		-62.3	167
	WANG	Bichen	USA	-17.8	10	-41.3	1.2	-3.3	-55.6	20.7	25.2	-1.9		-62.8	168
	HAAPSAMO	Anne-Mari	FIN	49.4	-10.2	-28.4	-49	10.6	-31.4	23.7	-32.8	5		-63.1	169
	BOGDANOV	Vladimir	RUS	23	-47.7	13.6	51.7	-42.1	-35.4	-8.3	-22.9	2.9		-65.2	170
	KUROSAKI	Aruto	USA	21.2	-5.6	-5.5	-36.5	-23.3	-21.5	-13.2	12	6.9		-65.5	171
	LAI	Si	USA	-27	41	-40.4	-8.7	-10.2	-23.9	-4.2	-10	16.9		-66.5	172
	HSIEH	Anthony	USA	12.4	-29	-33	41.8	-7.9	35.3	-17.1	-26.2	-44.7		-68.4	173
	LI	David	USA	-7	-8.6	-18.5	-29.6	8.3	33.2	-19.5	-33.1	4.4		-70.4	174
	GAU	Vincent	USA	-19.7	30.9	-1.1	-8.7	-20.9	-16.1	9.5	-34.5	-10.3		-70.9	175
	DUCKWORTH	John	GBR	42	-21.2	-18.5	-28.8	-39.5	5.3	-29.1	23.9	-7		-72.9	176
	LIN	Kevin	AUS	23.3	22.3	-30.5	-6.2	-8.2	-26.6	-10.3	-9.7	-27.1		-73	177
	VYSHIVANNAYA	Oxana	RUS	-40.2	3.6	-4.6	-19.3	16	-32.3	-9.5	-11.6	24.6		-73.3	178
	BELLAY	Ondrej	SVK	-9.9	-48.3	-20.6	7.3	6.6	-27	26	2.1	-12.3		-76.1	179
	PUSCHMANN	Lukas	AUT	-14.9	-19.6	-31.1	-18.7	20.4	-32	32.4	-31.2	14.5		-80.2	180
	AIDA	Hiyori	JPN	-41.2	-42.7	-2.5	-18.7	17.8	-37.6	7.6	8.1	28.1		-81.1	181
	SHIFRIN	Andrey	RUS	-27.1	27.9	-31.6	-18.5	-6.9	-6.9	-22	-2.9	4.2		-83.8	182
	ROOS	Frauke	GER	36.7	-23.9	-26.4	-36	-28	-27.3	12.9	10	-8.1		-90.1	183
	SASAKI	Hisato	JPN	-17.4	-20.6	-10.7	-24.9	-40.9	33.9	8.4	-11.4	-6.6		-90.2	184
	BABA	Kenji	USA	-8.1	-17.6	-21.9	19.1	-18.1	-6.2	25.2	-38.8	-24.6		-91	185
	OGASAHARA	Nao	JPN	-15.4	12.5	-8.3	-14.9	14.2	-18.6	-34.7	-10.8	-15.2		-91.2	186
	KIRJOKANGAS	Mikko	FIN	-28.4	-10.3	-19.4	-10.5	18	-3.3	-34	-17	10		-94.9	187
	WOLSKA	Oliwia	RUS	-9.9	-9.4	22.9	-35.7	-6.8	-39.8	33.5	-16.7	-34.3		-96.2	188
	HUSOM	Glenn Ivar	NOR	-56.4	25.2	-23.2	-7.3	-10.2	22	-21.9	-57.7	31.9		-97.6	189
	GAN	Ryan	USA	-10.7	-5.3	7.8	-13.1	-34.4	-4.9	-8.1	-2	-27.5		-98.2	190
	KOLENDA	Dominik	POL	-43	-27.2	-14.3	-18.9	-38.8	26.3	-14.7	20.7	11.4		-98.5	191
	CHIN	Gregory	USA	-10.3	-29	-38	-20.4	50.3	-36.8	-6.4	36.3	-24.3	-20	-98.6	192
	HALPERIN	Rachel	USA	-44.5	-26.1	35.5	18.1	-15.9	-20.4	-45.6	-10.3	10		-99.2	193
	HAINES	Mark	GBR	-15.9	-51.7	-4.8	18.1	-28.3	-38.6	27.8	-17.7	11.3		-99.8	194
	HUYNH	Joe-Calberson	FRA	-5.3	-31.5	-62.2	-4.2	-2.9	17.3	7.7	-22	3		-100.1	195
	HAYASHI	Kenyuu	USA	-25.6	-11.6	-22	-6.7	-26.5	-2.7	-9.8	-4	8.3		-100.6	196
	MAHONEY	Grant	CAN	-32.1	-24.5	-43.1	8.1	-28.9	-2.1	35.5	-40.1	25.3		-101.9	197
	GORDULA	Aldwin	USA	-8.2	42.9	-54.8	12.9	-31.8	-3.7	8.4	-42.9	-25.6		-102.8	198
	BURNHAM	Daniel	USA	-20	-49	-8	17.4	-27.4	54.7	24.1	-20.7	-31.8		-103.6	199
	NISHIKAWA	Mai	JPN	-30.6	-30.8	-9.5	-3.6	-25.9	-12.9	-26.7	19.9	14.5		-105.6	200
	BOAS	Benjamin	USA	-21.5	57.5	-42.2	-13.2	-3.8	-26.1	-39.9	7.1	-25.7		-107.8	201
	MASUI	Takashi	USA	44.8	-31.8	-43.4	-15.5	-11.8	15.5	-18.9	-35.6	6.2	-20	-110.5	202
	RIEDEL	Thomas	USA	-42.8	-23.1	-15.7	-27.1	-7.4	-11.4	15.3	33.6	-18	-20	-116.6	203
	ZAHRADNIK	Michael	GER	30.3	-65.2	-7.1	-7.2	30.7	-9.9	-21.5	-33.2	-39.2		-122.3	204
	ROBISON	Aidan	FRA	-5.2	-5.5	-25.3	21.2	6.9	-42.1	-30.9	13.2	-35.2	-20	-122.9	205
	MARTIN	Philipp	GER	-12.8	-21.1	1.4	-14.2	1.3	-56.9	-37.7	20.5	-4.9		-124.4	206
	SUGIMOTO	Yuuji	USA	-23.6	-70	-11	-22.9	-25.1	-33.4	34.5	-5	26		-130.5	207
	MILLER	Scott	USA	-41.8	68.4	-31.1	-25.2	7.6	3	-12.5	-34.7	-44.4	-20	-130.7	208
	MARKO	Michal	SVK	27.2	-57.1	5	25.1	-12.1	7.2	-35.5	-38.5	-56.1		-134.8	209
	HANSEN	Sheila	DEN	-23.6	-29.1	-31.8	5.9	3.2	27.1	7	-65.6	-29.2		-136.1	210
	RINFRET	Anne	CAN	-39.5	-40.2	6.6	-11.8	-29.9	-26.8	-36.4	13.8	19.8		-144.4	211
	HOOGLAND	Ans	NED	-29	-30.3	-27.2	7.2	20	-32.8	-8.4	-10.2	-35.5		-146.2	212
	PICARD	Simon	FRA	-24.6	37.1	-35.2	-38.9	-22.7	14.3	-49.3	12.2	-41		-148.1	213
	DOPPELHOFER	Alexander	AUT	-32.8	7.7	-20	-1.8	-35.7	-9.5	-12.2	-35.4	-14.1		-153.8	214
	ABDOLLAHI	Philip	IRN	-49	36.9	-21.6	-29.7	-27.6	-27.5	9.5	-30.2	-15		-154.2	215
	FIGONI	Pablo	ARG	-26.9	-40.1	13.5	-28.4	-27.3	-39.2	18	2.3	-26.3		-154.4	216
	MATOS	Sergio	FRA	-10	2.5	-43.3	-34.7	-32.7	-30.5	3.2	-4.5	-8.1		-158.1	217
	GAHLER	Daniel	GER	-21.3	-31.3	-27.1	7.7	-32.6	24.6	-25.1	-22.9	-12.4	-20	-160.4	218
	CHRISTENSEN	Tina	DEN	-39.6	-31.4	7.7	-27.8	6.9	3.9	-27.1	-39.5	-21.5		-168.4	219
	RIDEOUT	Shane	USA	-45.3	-41	22.8	-39.2	-10	-11.1	-25.6	32.4	-52.7		-169.7	220
	STUMMEYER	Ilka	GER	5.7	-38.1	-19.4	-31.7	-31	-12.2	-0.1	-40.2	-3.4		-170.4	221
	HOOGLAND	Cor	NED	-21.3	-47.5	2.1	-24.4	-24.1	-16.7	-40	-5.1	5.8		-171.2	222
	FELT	Tuvya	USA	-15.4	-20.4	-29.3	-31	31.5	-52.5	-33.6	8.4	0	-30	-172.3	223
	MELGOZA	Arthur	MEX	4	-52.1	-30.4	-38.5	-40.6	-62.1	-37.6	-29.4	-36.1	-20	-342.8	224

Elimination stages

Top 32

The top 32 from the preliminaries are separated into eight tables. The top two from each move on to the top 16.

Table 1
Player name	Hanchan 1	Hanchan 2	Total
UOTANI, Yuumi	29.7	-11.3	18.4
TOMOTAKE, Masaharu	-9.3	26.4	17.1
AOI, Yurika	9.3	-22.1	-12.8
UCHIKAWA, Kotaro	-29.7	7	-22.7

Table 2
Player name	Hanchan 1	Hanchan 2	Total
NAKAMURA, Yutaka	8.5	24.1	32.6
NAKAMURA, Shingo	31.4	-24.6	6.8
FRANCKS, Zachary	-25.9	11.8	-14.1
KUROSAWA, Kouichirou	-14	-11.3	-25.3

Table 3
Player name	Hanchan 1	Hanchan 2	Total
AKASHI, Minako	-13.9	39.2	25.3
MORIYAMA, Shigekazu	22.3	-10.2	12.1
KIKUHARA, Masato	5.5	-19.2	-13.7
SAKAI, Hidetaka	-13.9	-29.8	-43.7

Table 4
Player name	Hanchan 1	Hanchan 2	Total
KONNO, Shintaro	35.1	4.9	40
MASUDA, Ryuichi	11.2	24.8	36
TAKEDA, Yuki	-10.9	-20.6	-31.5
LESTER, Martin	-35.4	-9.1	-44.5

Table 5
Player name	Hanchan 1	Hanchan 2	Total
YAMADA, Manabu	28.1	-15.8	12.3
YAMADA, Hiroyuki	-26.2	36.9	10.7
KUROKI, Masao	-11	12.9	1.9
KONDO, Kazuo	9.1	-34	-24.9

Table 6
Player name	Hanchan 1	Hanchan 2	Total
TOMOZOE, Toshiyuki	42.2	-1	41.2
YAMAWAKI, Chifumi	-17.3	45	27.7
NISHIJIMA, Kazuhiko	14.3	-15.5	-1.2
MITO, Ryosuke	-39.2	-28.5	-67.7

Table 7
Player name	Hanchan 1	Hanchan 2	Total
YOSHIDA, Yukio	24.4	24	48.4
HIRVOLA, Ossi	4.9	-2.4	2.5
KUSABA, Tomoko	-7.7	8.1	0.4
SUGIURA, Kansuke	-19.6	-29.7	-49.3

Table 8
Player name	Hanchan 1	Hanchan 2	Total
TAKEDA, Katsuo	32	36.7	68.7
WEINGUNY, Lena	21.8	7.4	29.2
GULMANS, Martijn	-9.5	-34.7	-44.2
NIKAIDO, Aki	-44.3	-9.4	-53.7

Top 16

The top 16 are sorted into four tables, where the top 2 of each move on to the semi-final.

Table A
Player name	Hanchan 1	Hanchan 2	Total
UOTANI, Yuumi	29.1	-5.1	24
MASUDA, Ryuichi	13.8	6.3	20.1
NAKAMURA, Shingo	-16.4	22.8	6.4
AKASHI, Minako	-26.5	-24	-50.5

Table B
Player name	Hanchan 1	Hanchan 2	Total
NAKAMURA, Yutaka	-1.3	29.4	28.1
TOMOTAKE, Masaharu	42	-21.9	20.1
KONNO, Shintaro	-12	-11.2	-23.2
MORIYAMA, Shigekazu	-28.7	3.7	-25

Table C
Player name	Hanchan 1	Hanchan 2	Total
YOSHIDA, Yukio	31.2	25.7	56.9
WEINGUNY, Lena	-33.3	37.6	4.3
YAMAWAKI, Chifumi	13.6	-39.4	-25.8
YAMADA, Manabu	-11.5	-23.9	-35.4

Table D
Player name	Hanchan 1	Hanchan 2	Total
TAKEDA, Katsuo	19.3	9	28.3
YAMADA, Hiroyuki	33.9	-12.4	21.5
TOMOZOE, Toshiyuki	-40.2	29.7	-10.5
HIRVOLA, Ossi	-13	-26.3	-39.3

Semifinal

The top 2 of each semifinal table move on to the final table.

Table E
Player name	Hanchan 1	Hanchan 2	Total
YAMADA, Hiroyuki	27.8	10.1	37.9
TOMOTAKE, Masaharu	7.5	28.3	35.8
YOSHIDA, Yukio	-2.7	-5.8	-8.5
UOTANI, Yuumi	-32.6	-32.6	-65.2

Table F
Player name	Hanchan 1	Hanchan 2	Total
NAKAMURA, Yutaka	7.7	6.5	14.2
MASUDA, Ryuichi	35.7	-26.2	9.5
TAKEDA, Katsuo	-28.1	32	3.9
WEINGUNY, Lena	-15.3	-12.3	-27.6

Final

Main article: 2017 World Riichi Championship Final


Player name	Hanchan 1	Hanchan 2	Total
TOMOTAKE, Masaharu	20.8	11.6	32.4
MASUDA, Ryuichi	-10.2	22.8	12.6
YAMADA, Hiroyuki	10.1	-29.6	-19.5
NAKAMURA, Yutaka	-20.7	-4.8	-25.5

Summary of results by country

Main article: Comparative rankings for WRC

As there is no official rankings by country available, the table below is presenting the best, average, median and worst scores, as well as a composite score (the average of all four). Players placing equally with another player are ranked as a half-rank lower, in order to maintain statistical comparability.

Statistical averages based on player final rankings
Country	Best	Average	Median	Worst	Composite	Rank	4P+
Chile	77.00	77.00	77.00	77.00	77.00	01	—
Brazil	56.00	79.50	79.50	103.00	79.50	02	—
Hungary	81.00	81.00	81.00	81.00	81.00	03	—
Japan*	1.00	71.98	57.5	200.00	82.61	04	01
Singapore	44.00	90.50	91.00	136.00	90.38	05	02
Ukraine	60.00	95.33	111.00	115.00	95.33	06	—
Finland*	22.00	108.00	114.00	187.00	107.75	07	03
Sweden	54.00	108.63	108.75	163.00	108.59	08	04
China	88.00	110.00	104.00	128.00	110.00	09	—
United Kingdom*	23.50	121.17	131.00	205.00	120.17	10	05
Austria*	7.00	132.67	140.00	214.00	123.41	11	06
Australia	76.00	126.50	126.50	177.00	126.50	12	—
Slovakia	46.00	129.75	132.00	209.00	129.19	13	07
Poland	69.00	132.17	134.50	188.00	130.92	14	08
Netherlands*	23.50	142.10	139.00	222.00	131.65	15	09
Russia	59.00	140.75	163.00	178.00	135.19	16	10
United States*	26.00	141.16	157.00	223.00	136.79	17	11
Denmark	62.00	134.63	136.50	219.00	138.03	18	12
France	42.00	148.94	146.75	217.00	138.67	19	13
Argentina	120.00	153.33	124.00	216.00	153.33	20	—
Germany	79.00	180.57	204.00	221.00	171.14	21	14
Norway	189.00	189.00	189.00	189.00	189.00	22	—
Canada	197.00	204.00	204.00	211.00	204.00	23	—
Iran	215.00	215.00	215.00	215.00	215.00	24	—
Mexico	224.00	224.00	224.00	224.00	224.00	25	—

Note: The ranking columns are presented with two sets of information: one being for ranking all countries, the other for ranking countries with 4 or more players participating (4P+).

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