Ratings

SATO Koichiro (Japan)

Japanese name(s): 佐藤紘一郎

Ratings history

2024-09-19
2024-08-31
2024-07-31
2024-06-30
2024-05-31
2024-04-30
2024-03-31
2024-02-28
2024-01-31
2023-12-31
2023-06-30
2022-12-31
2022-06-30
2021-12-31
2021-06-30
2020-12-31
2020-06-30
2019-12-31
2019-06-30
2018-12-31
2018-06-30
2017-12-31
2017-06-30
2016-12-31
2016-06-30
2015-12-31
2015-06-30
2014-12-31
2014-06-30
2013-12-31
2013-06-30
2012-12-31
2012-06-30
2011-12-31
2011-06-30
2010-12-31
2010-06-30
2009-12-31
2009-06-30
2008-12-31
2008-06-30
2007-12-31
2007-06-30
2006-12-31
2006-06-30
2005-12-31

2177
2175
2181
2171
2176
2174
2168
2166
2167
2187
2171
2117
2104
2117
2098
2120
2110
2089
2101
2129
2038
2077
2018
2043
2061
2071
2085
2133
2168
2179
2186
2152
2161
2156
2120
2149
2170
2151
2149
2150
2137
2185
2183
2070
2008
1898

Show the ratings ⇩

227 tournaments
1355 results
Player ID: 5533
Rated 81 in Japan and 93 in Asia&Oceania&Africa and 104 in the World
Latest rating: 2177

2023

2022
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005

2023-10-15: 49_All_Japan_East_Kanto_prelim(Japan)

SATO Koichiro	35-29	KURAHASHI Satoshi
TOKIWA Shuto	43-21	SATO Koichiro
SUGIYAMA Keisuke	33-31	SATO Koichiro
SATO Koichiro	44-20	NAKAMURA Kosuke
SATO Koichiro	49-15	OKUDA Tsuyoshi
NAGANO Yasushi	47-17	SATO Koichiro

2022-02-13: East_Kanto_expert_games(Japan)

ISOBE Masaki	33-31	SATO Koichiro
SATO Koichiro	45-19	KOBAYASHI Manabu
SATO Koichiro	50-14	FURUSAWA Yuuma
OKUDA Tsuyoshi	39-25	SATO Koichiro
SATO Koichiro	50-14	TAKAHASHI Akinari

2020-11-15: 201_Nagareyama_open(Japan)

SATO Koichiro	52-12	YABE Uma
SATO Koichiro	34-30	ISOBE Masaki
YOSHINO Toru	44-20	SATO Koichiro
SATO Koichiro	47-17	OHMORI Keita
SATO Koichiro	54-10	UENO Tomohisa
OGURA Ryutaro	34-30	SATO Koichiro

2020-02-09: East_Kanto_expert_games(Japan)

NAGANO Yasushi	55-09	SATO Koichiro
SATO Koichiro	46-18	KOBAYASHI Makoto
SATO Koichiro	38-26	ISOBE Masaki
SATO Koichiro	40-24	KOMATSU Kanaharu
HONMA Yosuke	33-31	SATO Koichiro

2019-09-29: 48_All_Japan_East_Kanto_prelim(Japan)

KOMATSU Kanaharu	43-21	SATO Koichiro
SATO Koichiro	34-30	NAKAMURA Shuichi
TAKA Hirosuke	36-28	SATO Koichiro
SATO Koichiro	33-31	SAWADA Takehiko
SATO Koichiro	44-20	KOBAYASHI Manabu
SATO Koichiro	53-11	KOBAYASHI Makoto

2019-04-06: 193_Nagareyama_open(Japan)

SATO Koichiro	34-30	TSUCHIGANE Taishi
TOMI Kazuko	33-31	SATO Koichiro
SATO Koichiro	48-16	TSUCHIGANE Link
DOBASHI Yusuke	42-22	SATO Koichiro
SATO Koichiro	34-30	KATORI Michihiro
OKUDA Tsuyoshi	39-25	SATO Koichiro

2019-03-24: 40_Meijin(Japan)

TAKIZAWA Masaki	won against	SATO Koichiro
SATO Koichiro	won against	HATTORI Kouki
SATO Koichiro	won against	IDA Hiroaki
ASAHINA Satoshi	won against	SATO Koichiro
SATO Koichiro	won against	ADACHI Shungai
SATO Koichiro	won against	OKIZAKI Kyo
OHNO Tomohiro	won against	SATO Koichiro

2018-10-28: 47_All_Japan_East_Kanto_prelim(Japan)

SATO Koichiro	41-23	TAKA Hirosuke
ISOBE Masaki	33-31	SATO Koichiro
OHNO Tomohiro	36-28	SATO Koichiro
NARUMI Hisatoshi	35-29	SATO Koichiro
SATO Koichiro	45-19	SHINDO You

2018-09-17: 71_Tatebayashi_open(Japan)

SATO Koichiro	51-13	TAKANO Riku
SATO Koichiro	43-21	KOSHINO Kazuhiko
IWAKURA Hiroaki	38-26	SATO Koichiro
SATO Koichiro	41-23	KAWAI Shinobu
SATO Koichiro	52-12	YANO Yasushi
SATO Koichiro	53-11	GOTO Masahiro

2018-08-26: 13_Ouza_sen(Japan)

SATO Koichiro	51-13	ISHIZAKI Hikaru
SATANI Tetsu	42-22	SATO Koichiro
SATO Koichiro	38-26	FUKUNAGA Kohachi
SATO Koichiro	32-32	WATAHIKI Kenta
SATO Koichiro	38-26	NAGASAKI Hidekazu
MIYAZAKI Yuji	37-27	SATO Koichiro

2018-08-12: 188_Nagareyama(Japan)

SATO Koichiro	36-28	FUNATSU Asuka
SATO Koichiro	41-23	KOSHINO Kazuhiko
SATO Koichiro	40-24	MURAKAMI Takeshi
SATO Koichiro	39-25	HAYASAKA Toshie
HISHIYAMA Yuichi	36-28	SATO Koichiro
SATO Koichiro	39-25	NARUMI Hisatoshi

2018-07-15: 46_All_Japan_championship(Japan)

SATO Koichiro	won against	OHMORI Keita
SATO Koichiro	won against	NAKAMURA Sou
NARA Souma	won against	SATO Koichiro
SATO Koichiro	won against	ISHIKAWA Akira
SATO Koichiro	won against	SAITO Hiroki
SATO Koichiro	won against	KUWAHARA Shuhei

2018-06-03: 46_All_Japan_East_Kanto_prelim(Japan)

ISOBE Masaki	won against	SATO Koichiro
OKUDA Tsuyoshi	33-31	SATO Koichiro
NARUMI Hisatoshi	43-21	SATO Koichiro
SATO Koichiro	56-08	KOBAYASHI Makoto
SATO Koichiro	35-29	SHINDO You

2018-05-26: 135_Shinagawa_open(Japan)

KIYONOBU Kenta	46-18	SATO Koichiro
SAWADA Takehiko	35-29	SATO Koichiro
SATO Koichiro	48-16	WATANABE Kiriya
SATO Koichiro	44-20	YAMAGUCHI Tomoki
SATO Koichiro	43-21	ITO Yuusaku

2018-02-11: 2018_Kita_Kanto_expert_games(Japan)

KITANO Ochachi	36-28	SATO Koichiro
TAKIGAWA Mitsuaki	33-31	SATO Koichiro
SATO Koichiro	44-20	KAWAKAMI Eiichi
HASEGAWA Takeshi	42-22	SATO Koichiro
SATO Koichiro	49-15	YANO Yasushi

2017-12-16: 183_Nagareyama_open(Japan)

SATO Koichiro	41-23	KOBAYASHI Makoto
SATO Koichiro	36-28	KATORI Michihiro
IZUMI Takashi	34-30	SATO Koichiro
SATO Koichiro	33-31	MATSUMOTO Makoto
TSUCHIYA Shotaro	44-20	SATO Koichiro
SHINDO You	34-30	SATO Koichiro

2017-10-08: 6_team_Shinagawa_open(Japan)

TATSUMI-IIJIMA Yukiko	33-31	SATO Koichiro
TANAKA Shuntaro	51-13	SATO Koichiro
SUGIMOTO Takaharu	41-23	SATO Koichiro
SATO Koichiro	44-20	TAKAHASHI Hisashi
SATO Koichiro	37-27	IWAKURA Hiroaki

2017-09-18: 17_Saitama_open(Japan)

SATO Koichiro	35-29	YAMAGUCHI Tomoki
SATO Koichiro	40-24	OSATO Suguru
SATO Koichiro	59-05	KUDOU Yuusei
SATO Koichiro	52-12	GOTO Masahiro
SATO Koichiro	42-22	KOSHINO Kazuhiko
SATO Koichiro	41-23	ITO Yuji

2017-08-20: 180_Nagareyama_open(Japan)

SATO Koichiro	50-14	FUNATSU Asuka
SATO Koichiro	37-27	KOBAYASHI Manabu
SATO Koichiro	39-25	MATSUMOTO Makoto
ABE Yura	43-21	SATO Koichiro
SATO Koichiro	40-24	KOSHINO Kazuhiko
SATO Koichiro	51-13	NAKAMURA Kazuki

2017-08-06: 8_Kanagawa_cup(Japan)

SATO Koichiro	51-13	IKEDA Atsuhiko
SATO Koichiro	47-17	YAMAMOTO Takashi
SATO Koichiro	38-26	OSATO Suguru
OHMORI Keita	61-03	SATO Koichiro
SATO Koichiro	44-20	HISHIYAMA Yuichi
YAMAZAKI Nobuyuki	40-24	SATO Koichiro
MURAKAMI Takeshi	44-20	SATO Koichiro

2017-08-05: 119_Chiyarenshi_advanced(Japan)

TATSUMI-IIJIMA Yukiko	55-09	SATO Koichiro
KAMIKURA Daisuke	43-21	SATO Koichiro
OSATO Suguru	37-27	SATO Koichiro
KANEKO Kodai	33-31	SATO Koichiro
SATO Koichiro	56-08	ISHIKAWA Akira

2017-07-30: 64_Tatebayashi_open(Japan)

SATO Koichiro	54-10	NAGATSUKA Ibuki
SATO Koichiro	40-24	OKUDA Tsuyoshi
HASEGAWA Takeshi	32-32	SATO Koichiro
TAKAHASHI Hisashi	42-22	SATO Koichiro
SATO Koichiro	52-12	KOSHINO Kazuhiko
IWAKURA Hiroaki	33-31	SATO Koichiro

2017-07-22: 127_Shinagawa_open(Japan)

SATO Koichiro	57-07	NANASE Yuuma
SATO Koichiro	64-00	FUKUSHIMA Iyomu
NAKAJIMA Tetsuya	won against	SATO Koichiro
TANAKA Shuntaro	42-22	SATO Koichiro
TANIDA Kunihiko	51-13	SATO Koichiro
SATO Koichiro	42-22	KUWAHARA Shuhei

2017-07-09: 179_Nagareyama_open(Japan)

SATO Koichiro	49-15	SUDA Gadai
KATORI Michihiro	37-27	SATO Koichiro
WADA Masaki	40-24	SATO Koichiro
SHINDO You	47-17	SATO Koichiro
SATO Koichiro	45-19	KOBAYASHI Manabu
ISHIKAWA Akira	34-30	SATO Koichiro

2017-05-27: 125_Shinagawa_open(Japan)

SATO Koichiro	51-13	KUWAHARA Shuhei
TATSUMI-IIJIMA Yukiko	33-31	SATO Koichiro
HISHIYAMA Yuichi	36-28	SATO Koichiro
SATO Koichiro	35-29	ONUKI Yutaka
INOUE Masami	42-22	SATO Koichiro
NAKAMURA Kazuki	33-31	SATO Koichiro

2016-10-29: 6_Tatebayashi_Shiyaru_open(Japan)

OHUCHI Yasuhiro	34-30	SATO Koichiro
OKUDA Tsuyoshi	33-31	SATO Koichiro
SATO Koichiro	64-00	KAWASAKI Akito
SATO Koichiro	60-04	HORIUCHI Keiko
YAMAMOTO Kunihiro	36-28	SATO Koichiro
SATO Koichiro	51-13	YANO Yasushi
SATO Koichiro	34-30	TAKAHASHI Hisashi
SATO Koichiro	42-22	MORI Takahiro

2016-09-19: 16_Saitama_open(Japan)

SAJI Kouya	36-28	SATO Koichiro
SATO Koichiro	44-20	MIZUMURA Akira
SATO Koichiro	40-24	ATOBE Shuugo
SATO Koichiro	64-00	KAWABATA Seiji
URANO Kento	45-19	SATO Koichiro
SATO Koichiro	40-24	ISHIDA Kazuaki

2016-07-23: 170_Nagareyama_open(Japan)

HAYASAKA Toshie	40-24	SATO Koichiro
SATO Koichiro	52-12	TAKAHASHI Toshi
SATO Koichiro	50-14	SANO Yoko
TSUCHIYA Shotaro	47-17	SATO Koichiro
OKUDA Tsuyoshi	38-26	SATO Koichiro
TOMI Kazuko	39-25	SATO Koichiro

2016-04-30: 1_District_challenge(Japan)

SATO Koichiro	41-23	SAITO Aya
SATO Koichiro	36-28	MIURA Toshie
ITO Yuta	57-07	SATO Koichiro
TAMAKI Kyotaro	47-17	SATO Koichiro
KIYONOBU Kenta	48-16	SATO Koichiro
TANIDA Kunihiko	41-23	SATO Koichiro

2016-04-17: 168_Nagareyama_open(Japan)

SATO Koichiro	52-12	KOBAYASHI Manabu
KAMEDA Ryota	39-25	SATO Koichiro
SATO Koichiro	53-11	HAYASAKA Toshie
HAGIKURA Yutaka	48-16	SATO Koichiro
HISHIYAMA Yuichi	35-29	SATO Koichiro
SATO Koichiro	46-18	KANDA Yoshihiro

2016-04-03: 53_Mito_Jishi_games(Japan)

SATO Koichiro	64-00	ARAKI Yu
IZUMI Takashi	45-19	SATO Koichiro
SATO Koichiro	48-16	YUUKI Kokujin
SATO Koichiro	50-14	YUUKI Kousei
SATO Koichiro	35-29	OHTAKE Kosuke

2016-03-13: 56_Tatebayashi_open(Japan)

SATO Koichiro	45-19	KASAHARA Kohei
SATO Koichiro	34-30	OHUCHI Yasuhiro
SATO Koichiro	51-13	URUSHIHARA Kazuhiro
SATO Koichiro	41-23	NAKAJIMA Shun
ISHIKAWA Akira	37-27	SATO Koichiro
KITANO Ochachi	37-27	SATO Koichiro

2016-03-06: 17_Shinagawa_super_league(Japan)

OKAMOTO Kazuki	41-23	SATO Koichiro
TANIDA Kunihiko	39-25	SATO Koichiro
SATO Koichiro	38-26	ISOBE Masaki
SATO Koichiro	35-29	TSUCHIYA Ryosuke
URANO Kento	41-23	SATO Koichiro
SATO Koichiro	34-30	AKAGI Tachiro
SOUDA Shun	52-12	SATO Koichiro

2016-02-27: 110_Shinagawa_open(Japan)

SATO Koichiro	36-28	SASAKI Yasuyuki
FUKUCHI Keisuke	40-24	SATO Koichiro
HISHIYAMA Yuichi	44-20	SATO Koichiro
SATO Koichiro	58-06	OCHIAI Naofumi
TAMAKI Kyotaro	34-30	SATO Koichiro
SATO Koichiro	33-31	IGARASHI Jun

2015-12-26: 108_Shinagawa_open(Japan)

SATO Koichiro	33-31	NAGANO Yasushi
SATO Koichiro	33-31	OSATO Suguru
KAMIKURA Daisuke	won against	SATO Koichiro
SATO Koichiro	36-28	KOIDE Satoshi
SATO Koichiro	37-27	YAMAMOTO Takashi
SATO Koichiro	36-28	KIYONOBU Kenta

2015-09-06: 10_Ouza_sen(Japan)

TAKANASHI Yusuke	53-11	SATO Koichiro
OHMORI Keita	39-25	SATO Koichiro
TAKIZAWA Masaki	52-12	SATO Koichiro
NAKAJIMA Tetsuya	36-28	SATO Koichiro
YAMANAKA Mami	46-18	SATO Koichiro
SAKAGUCHI Kazuhiro	48-16	SATO Koichiro
KURAHASHI Satoshi	47-17	SATO Koichiro
SAITO Riki	40-24	SATO Koichiro
SATO Koichiro	44-20	OHTAKE Kosuke
SATANI Tetsu	42-22	SATO Koichiro
ASOU Daisuke	39-25	SATO Koichiro
SHIROTA Yasuto	37-27	SATO Koichiro

2015-07-19: 43_All_Japan_open_championship(Japan)

SATO Koichiro	won against	NAKAYAMA Mari
KASAI Masaya	won against	SATO Koichiro
NAKAJIMA Tetsuya	won against	SATO Koichiro
SATO Koichiro	won against	IZUMI Takashi
TANAKA Atsushi	won against	SATO Koichiro
TANIDA Kunihiko	won against	SATO Koichiro

2015-07-12: 162_Nagareyama(Japan)

SATO Koichiro	61-03	KOBAYASHI Manabu
TANAKA Atsushi	36-28	SATO Koichiro
SATO Koichiro	43-21	TSUCHIYA Shotaro
SATO Koichiro	48-16	NARUMI Hisatoshi
SUEKUNI Makoto	38-26	SATO Koichiro
KITANO Takumi	36-28	SATO Koichiro

2015-06-21: 43_All_Japan_North_Kanto_prelim(Japan)

SATO Koichiro	52-12	URUSHIHARA Kazuhiro
ITO Junya	36-28	SATO Koichiro
SATO Koichiro	39-25	TATENO Ryuuji
KURIHARA Tomoyuki	36-28	SATO Koichiro
SATO Koichiro	33-31	URA Satoru
SATO Koichiro	47-17	SAWAKI Yusuke

2015-06-13: 96_Chiyarenshi_open(Japan)

KIYONOBU Kenta	38-26	SATO Koichiro
TATSUMI-IIJIMA Yukiko	36-28	SATO Koichiro
SATO Koichiro	38-26	ISHIKAWA Akira
TAKAHASHI Hisashi	33-31	SATO Koichiro
TANIDA Kunihiko	34-30	SATO Koichiro
KURIHARA Aru	34-30	SATO Koichiro

2015-01-03: Shinagawa_open_2015(Japan)

SATO Koichiro	43-21	OHTAKE Kosuke
NAKAJIMA Tetsuya	34-30	SATO Koichiro
ISHIKAWA Akira	33-31	SATO Koichiro
SATO Koichiro	37-27	IWAKURA Hiroaki
SHIRAI Ukyo	39-25	SATO Koichiro
FUNATSU Asuka	37-27	SATO Koichiro
ISOBE Masaki	40-24	SATO Koichiro

2014-12-27: 157_Nagareyama_open(Japan)

SATO Koichiro	47-17	OKUDA Tsuyoshi
OHUCHI Yasuhiro	won against	SATO Koichiro
SATO Koichiro	44-20	KOBAYASHI Makoto
SATO Koichiro	33-31	ISOBE Masaki
SATO Koichiro	36-28	NARUMI Hisatoshi
SATO Koichiro	42-22	KURAHASHI Satoshi

2014-12-21: 47_Hokkaido_open(Japan)

SATO Koichiro	49-15	OKABAYASHI Noguchi
SATO Koichiro	36-28	TAKAHASHI Satomi
KIYONOBU Kenta	35-29	SATO Koichiro
SASAKI Sohei	42-22	SATO Koichiro
SATO Koichiro	40-24	TAKENOBU Kosuke
SATO Koichiro	44-20	KOSHIRO Ryuta
SHIRAISHI Katsuyoshi	39-25	SATO Koichiro

2014-10-12: 4_Tatebayashi_Shiyaru_open(Japan)

SATO Koichiro	46-18	KAWASAKI Akito
KURACHI Takayuki	37-27	SATO Koichiro
SATO Koichiro	33-31	OKUDA Tsuyoshi
SATO Koichiro	37-27	URUSHIHARA Kazuhiro
SATO Koichiro	37-27	GOTO Masahiro
SATO Koichiro	44-20	MORI Takahiro
SATO Koichiro	41-23	OHUCHI Yasuhiro
SATO Koichiro	40-24	KURACHI Takayuki

2014-09-20: 37_Mito_Jishi_games(Japan)

SATO Koichiro	59-05	WATANABE Katsuhiko
NAGAO Hiroto	49-15	SATO Koichiro
SATO Koichiro	41-23	HAMA Kouta
SATO Koichiro	42-22	TOMI Kazuko

2014-08-09: 88_Chiyarenshi_open(Japan)

MITSUYA Nobuaki	33-31	SATO Koichiro
NAKAJIMA Tetsuya	40-24	SATO Koichiro
SHINOHARA Ryo	36-28	SATO Koichiro
SATO Koichiro	43-21	TAKIGAWA Mitsuaki
SATO Koichiro	35-29	KURAHASHI Satoshi
GOTO Masahiro	37-27	SATO Koichiro

2014-05-25: 45_Tatebayashi_open(Japan)

SATO Koichiro	35-29	OCHIAI Naofumi
ABE Yura	33-31	SATO Koichiro
SATO Koichiro	34-30	SHIBASAKI Lily
TAKAHASHI Hisashi	33-31	SATO Koichiro
URUSHIHARA Kazuhiro	34-30	SATO Koichiro
IWAKURA Hiroaki	37-27	SATO Koichiro

2013-12-14: 90_Shinagawa_open(Japan)

OSATO Suguru	35-29	SATO Koichiro
SATO Koichiro	40-24	SUGUWARA Kiyoshi
SATO Koichiro	37-27	YUBARA Satoshi
TAKANASHI Yusuke	39-25	SATO Koichiro
SATO Koichiro	44-20	YOKOUCHI Yuji
SATO Koichiro	38-26	IWAKURA Hiroaki

2013-10-20: 3_Tatebayashi_Shiyaru_open(Japan)

SATO Koichiro	42-22	OCHIAI Naofumi
SATO Koichiro	37-27	OHUCHI Yasuhiro
SATO Koichiro	39-25	URUSHIHARA Kazuhiro
YAMAMOTO Kunihiro	34-30	SATO Koichiro
SATO Koichiro	41-23	GOTO Masahiro
SATO Koichiro	45-19	KURACHI Takayuki
YAMAMOTO Kunihiro	35-29	SATO Koichiro
SATO Koichiro	41-23	KITANO Takumi

2013-10-13: 2_team_Shinagawa_open(Japan)

SATO Koichiro	40-24	KOBAYASHI Mai
HISHIYAMA Yuichi	34-30	SATO Koichiro
SATO Koichiro	37-26	TANAKA Shuntaro
MABUCHI Yuta	35-29	SATO Koichiro
SATO Koichiro	45-19	MATSUZAWA Masa
SATO Koichiro	34-30	TAKAGI Yosuke

2013-09-01: 8_Ouza_sen(Japan)

SATO Koichiro	39-25	SHIBUYA Motoki
TODA Tomoya	35-29	SATO Koichiro
SATO Koichiro	32-32	OHNO Tomohiro
SATO Koichiro	39-25	KINOSHITA Takao
YABE Uma	34-30	SATO Koichiro
HONMA Yosuke	37-27	SATO Koichiro

2013-07-14: 41_All_Japan_open_championhship(Japan)

SATO Koichiro	won against	TAKAGI Yosuke
OHNO Tomohiro	won against	SATO Koichiro
SHIMAMURA Yoshihide	won against	SATO Koichiro
SATO Koichiro	won against	HAMADA Naoki
SATO Koichiro	won against	TAKIZAWA Masaki
SATO Koichiro	won against	SHIMIZU Naoki

2013-06-30: 41_All_Japan_east_Kanto_prelim(Japan)

SATO Koichiro	55-09	OKUDA Tsuyoshi
SATO Koichiro	42-22	SANO Joichiro
AKAGI Tachiro	33-31	SATO Koichiro
SATO Koichiro	44-20	NAGANO Yasushi
YAMAKAWA Takashi	33-31	SATO Koichiro
SATO Koichiro	33-31	OHNO Tomohiro
SATO Koichiro	35-29	IKEDA Yuki

2013-05-03: 25_Kyoto_open(Japan)

NAGAMATSU Ryota	32-32	SATO Koichiro
NAKAMORI Hiroki	37-27	SATO Koichiro
SATO Koichiro	46-18	TAKIGAWA Mitsuaki
SATO Koichiro	49-15	MATSUMOTO Kazunori
SATO Koichiro	36-28	SAWADA Tomohiro
SATO Koichiro	41-23	OHIKE Yoshinori
SATO Koichiro	33-31	YOSHIDA Shigenobu

2012-11-24: 37_Tatebayashi_open(Japan)

SATO Koichiro	43-21	OCHIAI Naofumi
KURACHI Takayuki	34-30	SATO Koichiro
SATO Koichiro	33-31	TAKAHASHI Kenji
HISHIYAMA Yuichi	34-30	SATO Koichiro
SATO Koichiro	42-22	MIYAKOSHI Orita
NAGASHIMA Kazuhito	40-24	SATO Koichiro

2012-10-21: 2_Tatebayashi_Shiyaru_open(Japan)

SATO Koichiro	44-20	KURACHI Takayuki
SATO Koichiro	45-18	KAWASAKI Akito
SATO Koichiro	38-26	YAMAMOTO Kunihiro
SATO Koichiro	35-29	GOTO Hiroshi
SATO Koichiro	43-21	GOTO Masahiro
SATO Koichiro	37-27	MIYAKOSHI Orita
OHUCHI Yasuhiro	34-30	SATO Koichiro
SATO Koichiro	33-31	YAMAMOTO Kunihiro

2012-10-07: 23_Kansai_champ_A(Japan)

SATO Koichiro	46-18	SAWADA Tomohiro
SATO Koichiro	56-08	HATA Hayato
MATSUMOTO Hiroshi	39-25	SATO Koichiro
TODA Aritoshi	36-28	SATO Koichiro
SATO Koichiro	36-28	UNO Toshihiro
NAKAMORI Hiroki	41-23	SATO Koichiro
SATO Koichiro	48-16	MARUYAMA Tomohiro

2012-09-02: 7_Ouza_sen(Japan)

SUEKUNI Makoto	40-24	SATO Koichiro
TSUCHIYA Ryosuke	32-32	SATO Koichiro
SATO Koichiro	45-19	TSUCHIDA Daisuke
ISHIZAKI Hikaru	32-32	SATO Koichiro
IDE Akiko	36-28	SATO Koichiro
SATO Koichiro	35-29	SHINOHARA Ryo

2012-08-12: 141_Nagareyama_open(Japan)

SATO Koichiro	49-15	SAKURAE Shinichi
SATO Koichiro	34-30	KANEKO Kodai
SATO Koichiro	46-18	KOBAYASHI Manabu
SATO Koichiro	34-30	NAGAMATSU Ryota
IWATA Hiroyuki	42-22	SATO Koichiro
SATO Koichiro	34-30	KAMIKURA Daisuke

2012-08-05: 1_Kyoto_standings(Japan)

SATO Koichiro	58-06	ASAI Syun
KAMEDA Ryota	46-18	SATO Koichiro
SATO Koichiro	35-29	YOSHIDA Shigenobu
HATA Hayato	46-18	SATO Koichiro
SHIRAI Ukyo	33-31	SATO Koichiro
SATO Koichiro	48-16	SHIMAMURA Yoshihide

2012-07-18: 40_All_Japan_champ(Japan)

SATO Koichiro	won against	TOJO Atsushi
IIJIMA Takamune	won against	SATO Koichiro
TSUKAMOTO Kazuma	won against	SATO Koichiro
GOTO Hiroshi	won against	SATO Koichiro
SATO Koichiro	won against	YASUJIMA Yuji
UMEZAWA Keiki	won against	SATO Koichiro

2012-06-10: 40_All_Japan_Kinki_prelim(Japan)

SATO Koichiro	44-20	MORI Takahiro
SATO Koichiro	54-10	KOBAYASHI Ritsuko
SATO Koichiro	38-26	MATSUMOTO Hiroshi
TSUCHIYA Keishiro	35-29	SATO Koichiro
HATA Hayato	50-14	SATO Koichiro
OHTSUBO Masayuki	43-21	SATO Koichiro
SATO Koichiro	50-14	OSHIMA Yusuke

2012-05-04: 139_Nagareyama_open(Japan)

SATO Koichiro	36-28	SAWADA Takehiko
SATO Koichiro	59-05	MATSUMOTO Takaki
SATO Koichiro	35-29	ASOU Daisuke
FUNATSU Asuka	34-30	SATO Koichiro
SATO Koichiro	40-24	TSUCHIYA Shotaro
SATO Koichiro	44-20	IWATA Hiroyuki

2012-03-04: Meijin_groupB(Japan)

OHUCHI Yasuhiro	41-23	SATO Koichiro
SATO Koichiro	45-19	STEENTOFT Benkt
SATO Koichiro	37-27	TANAKA Amane
SATO Koichiro	41-23	KURAHASHI Satoshi
TAKIZAWA Masaki	34-30	SATO Koichiro
SATO Koichiro	35-29	TOJO Atsushi
SATO Koichiro	38-26	KANEDA Shigeru

2012-01-22: 32_Tatebayashi_open(Japan)

SATO Koichiro	48-16	KAWASAKI Akito
SATO Koichiro	33-31	KAMIKURA Daisuke
SATO Koichiro	33-31	YAMAMOTO Kunihiro
SATO Koichiro	43-21	ISHIKAWA Akira
SATO Koichiro	45-19	NAKAMURA Kotaro
SATO Koichiro	39-25	URUSHIHARA Kazuhiro

2012-01-03: Shinagawa_open_2012(Japan)

SATO Koichiro	39-25	NAKAYAMA Takahiro
SATO Koichiro	37-27	IWAKURA Hiroaki
SATO Koichiro	33-31	KAMIKURA Daisuke
YAMAKAWA Takashi	34-30	SATO Koichiro
SATO Koichiro	38-26	MATSUDA Shoma
IIJIMA Takamune	36-28	SATO Koichiro
SATO Koichiro	35-29	IWATA Hiroyuki

2011-11-23: 31_Tatebayashi_open(Japan)

SATO Koichiro	44-20	KINOSHITA Takao
SATO Koichiro	39-25	KOSHINO Kazuhiko
SATO Koichiro	33-31	URUSHIHARA Kazuhiro
UMEMURA Yuji	36-28	SATO Koichiro
SATO Koichiro	34-30	ISHIKAWA Akira
SATO Koichiro	35-29	GOTO Masahiro

2011-11-12: 78_Shinagawa_open(Japan)

SATO Koichiro	36-28	NARUMI Hisatoshi
SATO Koichiro	39-25	IMOTO Wataru
SATO Koichiro	36-28	TSUCHIYA Ryosuke
SUEKUNI Makoto	33-31	SATO Koichiro
NAKAJIMA Tetsuya	34-30	SATO Koichiro
SATO Koichiro	33-31	ASAHINA Satoshi

2011-10-30: 2011_Yokohama_open(Japan)

SATO Koichiro	40-24	OHUCHI Yasuhiro
SATO Koichiro	41-23	MIYATA Toru
SATO Koichiro	33-31	MUSAKA Shizue
SATO Koichiro	44-20	ASOU Daisuke
SATO Koichiro	36-28	ASAKAWA Takuya
NAGANO Yasushi	34-30	SATO Koichiro

2011-10-23: 1_Tatebayashi_Shiyaru_open(Japan)

SATO Koichiro	39-25	MORI Takahiro
SATO Koichiro	won against	OHUCHI Yasuhiro
SATO Koichiro	33-31	KURACHI Takayuki
SATO Koichiro	34-30	URUSHIHARA Kazuhiro
SATO Koichiro	36-28	YAMAMOTO Kunihiro
SATO Koichiro	32-32	OKUDA Tsuyoshi
SATO Koichiro	34-30	KURACHI Takayuki
URUSHIHARA Kazuhiro	33-31	SATO Koichiro

2011-09-23: Tatebayashi_open(Japan)

SATO Koichiro	34-30	SHIBASAKI Lily
SATO Koichiro	36-28	YAMAMOTO Kunihiro
SATO Koichiro	33-31	NAGAMATSU Ryota
SATO Koichiro	36-28	KURACHI Takayuki
SATO Koichiro	44-20	KITAGAWA Mitsuki
SATO Koichiro	44-20	KINOSHITA Tsutomu

2011-09-19: 11_Saitama_open(Japan)

SATO Koichiro	52-12	SUGIMURA Kazuhiko
SATO Koichiro	41-23	KURIHARA Aru
SATO Koichiro	41-23	ASAKAWA Takuya
SATO Koichiro	40-24	GOTO Masahiro
ITO Junya	49-15	SATO Koichiro
SATO Koichiro	40-24	KANEKO Takahiro

2011-09-10: 77_Shinagawa_open(Japan)

SATO Koichiro	35-29	WAKAYAMA Yusuke
SATO Koichiro	33-31	NARUMI Hisatoshi
SATO Koichiro	33-31	NAKAJIMA Tetsuya
SATO Koichiro	34-30	MURAKAMI Takeshi
SATO Koichiro	33-31	ASAHINA Satoshi
SATO Koichiro	46-18	TATSUMI-IIJIMA Yukiko

2011-09-04: 74_Kanagawa_open(Japan)

SATO Koichiro	48-16	TAKIGAWA Mitsuaki
SATO Koichiro	42-22	IKEDA Atsuhiko
MITSUYA Nobuaki	43-21	SATO Koichiro
SATO Koichiro	33-31	MURAKAMI Takeshi
SATO Koichiro	44-20	KOMAGATA Masayuki
ITAGAKI Kenichi	44-20	SATO Koichiro

2011-08-13: 71_Chiyarenshi(Japan)

SATO Koichiro	37-27	ISHIKAWA Akira
NAKAJIMA Tetsuya	38-26	SATO Koichiro
ITO Junya	41-23	SATO Koichiro
IWAKURA Hiroaki	34-30	SATO Koichiro
SATO Koichiro	41-23	IWATA Hiroyuki

2011-08-07: 2_Kanagawa_Katsuhu_open(Japan)

SATO Koichiro	47-17	TERASAWA Fuji
NARUMI Hisatoshi	43-21	SATO Koichiro
KURITA Seiya	33-31	SATO Koichiro
SATO Koichiro	35-29	MITSUYA Nobuaki
SATO Koichiro	51-13	IWAKURA Hiroaki
SATO Koichiro	40-24	NODA Bintatsu
NAGASHIMA Kazuhito	37-27	SATO Koichiro

2011-06-19: 39_Japan_Champ_north_Kanto_prelim(Japan)

SATO Koichiro	41-23	URUSHIHARA Kazuhiro
KANOU Yuki	34-30	SATO Koichiro
SAITO Riki	41-23	SATO Koichiro
SATO Koichiro	39-25	YOSHIDA Hideaki
KURACHI Takayuki	39-25	SATO Koichiro
KAWABATA Seiji	40-24	SATO Koichiro

2011-05-29: 32_Meijin(Japan)

AIHARA Shigeaki	won against	SATO Koichiro
SATO Koichiro	won against	KATSURA Hisatoshi
SATO Koichiro	won against	MITSUYA Nobuaki
OKAMOTO Kazuki	won against	SATO Koichiro
TODA Tomoya	won against	SATO Koichiro

2011-05-03: 23_Kyoto_open(Japan)

YOSHIDA Shigenobu	32-32	SATO Koichiro
MIYAZAKI Yuji	55-09	SATO Koichiro
YOSHIYUKI Suganuma	33-31	SATO Koichiro
SATO Koichiro	39-25	MATSUMOTO Kishie
SATO Koichiro	35-29	SUGIYAMA Tomoyuki
SATO Koichiro	40-24	NAKAJIMA Norio
SATO Koichiro	41-23	TODA Guratoshi

2011-03-05: 75_Shinagawa_open(Japan)

SATO Koichiro	36-28	TANAKA Amane
SATO Koichiro	35-29	SHINOHARA Ryo
HANAGAMI Tatsuhiko	35-29	SATO Koichiro
TOKI Yugo	34-30	SATO Koichiro
SATO Koichiro	34-30	TANAKA Atsushi
KOZUKA Katsuhiko	43-21	SATO Koichiro

2011-01-30: Tatebayashi_open(Japan)

YAMAMOTO Kunihiro	37-27	SATO Koichiro
SATO Koichiro	40-24	GOTO Masahiro
SATO Koichiro	45-19	KOBAYASHI Manabu
SHINAGAWA Yukinobu	33-31	SATO Koichiro
SATO Koichiro	34-30	OKUDA Tsuyoshi
SATO Koichiro	34-30	NAGAMATSU Ryota

2011-01-22: Tenno_expert_games(Japan)

KURACHI Takayuki	38-26	SATO Koichiro
SATO Koichiro	39-25	TOKI Yugo
SATO Koichiro	34-30	NAGASAKI Hidekazu
SATO Koichiro	43-21	TAKAHASHI Kanji
SATO Koichiro	38-26	IZUMI Takashi
TAKANASHI Yusuke	39-25	SATO Koichiro

2011-01-16: 128_Nagareyama_open(Japan)

SATO Koichiro	40-24	YOSHIKAWA Kazumi
SATO Koichiro	40-24	WATANABE Keiichi
KOSHINO Kazuhiko	36-28	SATO Koichiro
SATO Koichiro	35-29	FUNATSU Asuka
NARUMI Hisatoshi	41-23	SATO Koichiro

2010-12-26: 224_Kawagoe_ranking_games(Japan)

SATO Koichiro	51-13	OCHIAI Naofumi
SATO Koichiro	34-30	ISHIKAWA Akira
SATO Koichiro	34-30	TODA Tomoya
MURAKAMI Takeshi	43-21	SATO Koichiro
KURITA Seiya	44-20	SATO Koichiro
TAKENOBU Kosuke	41-23	SATO Koichiro

2010-12-23: 127_Nagareyama_open(Japan)

SATO Koichiro	59-05	AKAIKE Norimitsu
SATO Koichiro	43-21	TATENO Ryuuji
SATO Koichiro	34-30	YAMAKAWA Takashi
SATO Koichiro	44-20	ISHIKAWA Akira
IWAKURA Hiroaki	40-24	SATO Koichiro

2010-11-28: 25_Tatebayashi_open(Japan)

SATO Koichiro	40-24	YAMAMOTO Kunihiro
SATO Koichiro	41-22	URUSHIHARA Kazuhiro
OHMORI Keita	37-27	SATO Koichiro
SATO Koichiro	36-28	IWAKURA Hiroaki
SATO Koichiro	42-22	TSUTSUI Masayuki
SATO Koichiro	37-27	GOTO Masahiro

2010-11-21: 126_Nagareyama_open(Japan)

HAYASAKA Toshie	34-30	SATO Koichiro
SATO Koichiro	47-17	TOKI Hidenobu
SATO Koichiro	52-12	KOSHINO Kazuhiko
SATO Koichiro	49-15	KATORI Michihiro
SATO Koichiro	33-31	HAGIKURA Yutaka

2010-11-14: 223_Kawagoe_ranking_games(Japan)

SATO Koichiro	62-02	TANAKA Atsushi
UMEMURA Yuji	50-14	SATO Koichiro
IWAKURA Hiroaki	57-07	SATO Koichiro
SATO Koichiro	43-21	TAKIGAWA Mitsuaki
KURACHI Takayuki	32-32	SATO Koichiro
GOTO Masahiro	39-25	SATO Koichiro

2010-09-25: 9_area_resistance(Japan)

HAGIKURA Yutaka	37-27	SATO Koichiro
SATO Koichiro	36-28	IZUMI Takashi
SATO Koichiro	36-28	SAITO Aya
SATANI Tetsu	41-23	SATO Koichiro
SATO Koichiro	38-26	KOBAYASHI Manabu
SATO Koichiro	47-17	DOJUN Makiko

2010-09-19: 10_Saitama_open(Japan)

SATO Koichiro	40-24	ISHIKAWA Akira
SATO Koichiro	33-31	SHINAGAWA Yukinobu
SATO Koichiro	37-27	HAGIKURA Yutaka
NISHIYAMA Momoko	35-29	SATO Koichiro
SATO Koichiro	35-29	IWATA Hiroyuki
SATO Koichiro	41-23	KIUCHI Hideyuki

2010-09-18: 47_King_State(Japan)

SATO Koichiro	45-19	ISHIKAWA Akira
NAKAJIMA Tetsuya	41-23	SATO Koichiro
TAKANASHI Yusuke	37-27	SATO Koichiro
WAKIMOTO Naoyuki	39-25	SATO Koichiro
KURACHI Takayuki	33-31	SATO Koichiro
SATO Koichiro	35-29	KOIDE Satoshi

2010-09-12: 125_Nagareyama_open(Japan)

SATO Koichiro	44-20	KOBAYASHI Makoto
SATO Koichiro	59-05	IWAKURA Hiroaki
SATO Koichiro	35-29	OHNO Tomohiro
SATO Koichiro	41-23	KOBAYASHI Manabu
TSUKAMOTO Kazuma	33-31	SATO Koichiro

2010-08-21: 6_Chubu_open(Japan)

SATO Koichiro	42-22	OKUDA Tsuyoshi
SUGIYAMA Tomoyuki	44-20	SATO Koichiro
SATO Koichiro	37-27	ITO Shinpi
KAMEDA Ryota	33-31	SATO Koichiro
SATO Koichiro	44-20	SHIROTA Yasuto
SATO Koichiro	37-27	YAMASHITA Kazuma
SATO Koichiro	33-31	ESAKI Yuta

2010-08-08: 124_Nagareyama_open(Japan)

SATO Koichiro	won against	WATAHIKI Kenta
OKUDA Tsuyoshi	49-15	SATO Koichiro
NAGAO Hiroto	46-18	SATO Koichiro
SATO Koichiro	45-19	KINOSHITA Takao
SATO Koichiro	57-07	HADA Jun

2010-08-07: 69_Shinagawa_open(Japan)

SATO Koichiro	35-29	KOBAYASHI Manabu
ISHIKAWA Akira	42-21	SATO Koichiro
SATO Koichiro	39-25	ASAKAWA Takuya
SATO Koichiro	35-29	IWAKURA Hiroaki
SATO Yutaka	39-25	SATO Koichiro
SATO Koichiro	34-30	KOZUKA Katsuhiko

2010-08-01: 1_Kanagawa_Katsuhu_open(Japan)

SATO Koichiro	47-17	KOMAGATA Masayuki
SATO Koichiro	42-22	TANAKA Shuntaro
SATO Koichiro	35-29	IMOTO Wataru
SATO Koichiro	34-30	SUZUKI Yuta
MURAKAMI Takeshi	38-26	SATO Koichiro
YAMAKAWA Takashi	41-23	SATO Koichiro
SATO Koichiro	34-30	NODA Bintatsu

2010-07-24: 40_King_State(Japan)

SATO Koichiro	39-25	KAWAGUCHI Genki
SATO Koichiro	34-30	NAKAJIMA Tetsuya
HAGIKURA Yutaka	40-24	SATO Koichiro
SATO Koichiro	39-24	IWAKURA Hiroaki
SUZUKI Yuta	35-29	SATO Koichiro
IWATA Hiroyuki	43-21	SATO Koichiro

2010-05-01: 66_Shinagawa_open(Japan)

NAGASHIMA Kazuhito	36-28	SATO Koichiro
SATO Koichiro	36-28	YAMAGA Shinji
SATO Koichiro	34-30	KOMAGATA Masayuki
TANAKA Shuntaro	33-31	SATO Koichiro
SATO Koichiro	41-23	KANDA Yoshihiro

2010-03-28: 39_King_State(Japan)

SATO Koichiro	33-31	SANO Yoko
SATO Koichiro	33-31	IWATA Hiroyuki
SATO Koichiro	36-28	NARIYA Makoto
ISHIKAWA Akira	35-29	SATO Koichiro
SATO Koichiro	36-28	MATSUMOTO Hiroyuki
TOMINAGA Kenta	33-31	SATO Koichiro

2010-03-21: 31_Meijin(Japan)

TAKIZAWA Nobuyuki	64-00	SATO Koichiro
SATO Koichiro	64-00	KAMEDA Ryota
GOTO Hiroshi	64-00	SATO Koichiro
SATO Koichiro	64-00	ISHIKAWA Akira
SATO Koichiro	64-00	KAMIO Mamoru
TODA Tomoya	64-00	SATO Koichiro

2010-01-16: 41_King_state(Japan)

NAKANO Jo	35-29	SATO Koichiro
SATO Koichiro	33-31	OHTAKE Kosuke
SATO Koichiro	39-25	KOSHINO Kazuhiko
SATANI Tetsu	41-23	SATO Koichiro
SATO Koichiro	34-30	AKASHI Tomone
SATO Koichiro	36-28	ISHIKAWA Akira

2009-11-01: 65_Kanagawa_open(Japan)

SATO Koichiro	43-21	KATO Yuzuru
SATO Koichiro	42-22	MITSUYA Nobuaki
SATO Koichiro	33-31	ITAGAKI Kenichi
MATSUZAWA Atsushi	47-17	SATO Koichiro
SATO Koichiro	43-21	TAKASHIMA Ryoji
TANAKA Amane	57-07	SATO Koichiro

2009-09-27: 36_King_State(Japan)

SATO Koichiro	36-28	TOKI Hidenobu
KURACHI Takayuki	37-27	SATO Koichiro
SATO Koichiro	35-29	SUZUKI Yuta
SATO Koichiro	34-30	TAKIGAWA Mitsuaki
TANIDA Kunihiko	35-29	SATO Koichiro
KOIDE Satoshi	38-26	SATO Koichiro

2009-09-22: 8_area_open(Japan)

SATO Koichiro	39-25	KANDA Yoshihiro
SATO Koichiro	won against	MITSUYA Nobuaki
SATO Koichiro	34-30	KURACHI Takayuki
ITAGAKI Kenichi	36-28	SATO Koichiro
NAKAMORI Chiaki	40-24	SATO Koichiro
SATO Koichiro	won against	YAMAMOTO Kunihiro

2009-09-19: 27_King_State(Japan)

SATO Koichiro	40-24	YOSHIYUKI Suganuma
AKASHI Tomone	37-27	SATO Koichiro
NAGASAKI Hidekazu	39-25	SATO Koichiro
SATO Koichiro	39-25	OTANI Takashi
SATO Koichiro	42-22	MATSUYA Shinpei
SATO Koichiro	40-24	NAGAMATSU Ryota

2009-09-06: 64_Kanagawa_open(Japan)

SATO Koichiro	34-30	OKADA Hionobu
TOSAKA Hideki	55-09	SATO Koichiro
SATO Koichiro	43-21	TAKEDA Kyoko
SHIROTA Yasuto	35-29	SATO Koichiro
SATO Koichiro	45-19	YAMAZAKI Nobuyuki
SATO Koichiro	37-27	GOTO Masahiro

2009-08-29: 35_King_State(Japan)

SATO Koichiro	39-25	SATO Yutaka
HAGIKURA Yutaka	34-30	SATO Koichiro
SATO Koichiro	36-28	NAGANO Yasushi
NAKAMORI Hiroki	34-30	SATO Koichiro
SATO Koichiro	37-27	NAGAMATSU Ryota
SATO Koichiro	33-31	NAGASAKI Hidekazu

2009-08-15: 36_King_State(Japan)

MATSUYA Shinpei	39-25	SATO Koichiro
OHTAKE Kosuke	37-27	SATO Koichiro
SATO Koichiro	41-23	KAWABATA Seiji
SATO Koichiro	38-26	KOSHINO Kazuhiko
SATO Koichiro	37-27	TAKASAKI Shohei
ISHIKAWA Akira	35-29	SATO Koichiro

2009-08-01: 59_Shinagawa_open(Japan)

TATSUMI-IIJIMA Yukiko	43-21	SATO Koichiro
SATO Koichiro	37-27	SHIMONOSONO Kozo
SATO Koichiro	35-29	OHNO Atsuko
SATO Koichiro	34-30	TOKI Hidenobu
AKASHI Tomone	34-30	SATO Koichiro
SATO Koichiro	42-22	WATANABE Keiichi

2009-06-28: 37_Japan_Champ_Tokyo_prelim(Japan)

SATO Koichiro	37-27	HISHIYAMA Yuichi
SATO Koichiro	35-29	WATANABE Hideaki
KATO Yuzuru	34-30	SATO Koichiro
SATO Koichiro	35-29	KOZUKA Katsuhiko
SATO Koichiro	35-29	NAGASAKI Hidekazu
WATANABE Hajime	37-27	SATO Koichiro
KOZUKA Katsuhiko	won against	SATO Koichiro

2009-06-20: 35_King_State(Japan)

SATO Koichiro	35-29	SUZUKI Yuta
SATO Koichiro	39-25	TATSUMI-IIJIMA Yukiko
MIYAZAKI Yuji	36-28	SATO Koichiro
IWATA Hiroyuki	41-23	SATO Koichiro
SATO Koichiro	37-27	SANO Yoko

2009-05-31: 5_Inuyama_Open(Japan)

SATO Koichiro	38-26	SAKA Hiroshi
ISHIKAWA Akira	won against	SATO Koichiro
SUZUKI Yuta	39-25	SATO Koichiro
NAGASAKI Hidekazu	41-23	SATO Koichiro
SATO Koichiro	33-31	NAGASHIMA Kazuhito
SATO Koichiro	38-26	KOZUKA Katsuhiko

2009-05-23: 32_King_State(Japan)

SATO Koichiro	37-27	NAGASAKI Hidekazu
MIYAZAKI Yuji	33-31	SATO Koichiro
SATO Koichiro	33-31	HISHIYAMA Yuichi
AKASHI Tomone	37-27	SATO Koichiro
SATO Koichiro	36-28	NAGAMATSU Ryota
SATO Koichiro	44-20	SATO Tetsuya

2009-05-16: 34_King_State(Japan)

NAGASHIMA Kazuhito	36-28	SATO Koichiro
SATO Koichiro	39-25	KOMAGATA Masayuki
KOIDE Satoshi	37-27	SATO Koichiro
SATO Koichiro	37-27	SUZUKI Yuta
SATO Koichiro	33-31	IKEDA Atsuhiko
TAKEDA Kyoko	38-26	SATO Koichiro

2009-05-02: 56_Shinagawa_Open(Japan)

SATO Koichiro	40-24	HAMADA Kikue
YAMAKAWA Takashi	38-26	SATO Koichiro
SATO Koichiro	42-22	HISHIYAMA Yuichi
NAKAJIMA Tetsuya	won against	SATO Koichiro
SATO Koichiro	33-31	HAGIKURA Yutaka
SATO Koichiro	39-25	ISHIKAWA Akira

2009-04-25: 30_King_State(Japan)

SATO Koichiro	41-23	AKASHI Tomone
SAKA Hiroshi	34-30	SATO Koichiro
SATO Koichiro	36-28	SHINOHARA Jun
SATO Koichiro	35-29	SANO Yoko
MIYAZAKI Yuji	40-24	SATO Koichiro
SATO Koichiro	36-28	TSUKAMOTO Kazuma

2009-03-29: Hausuohu_Open(Japan)

SATO Koichiro	33-31	WATANABE Keiichi
SATO Koichiro	33-31	AIHARA Shigeaki
SAWAKI Yusuke	33-31	SATO Koichiro
SATO Koichiro	33-31	OKAWA Akira
SATO Koichiro	33-31	URUSHIHARA Yoshihisa
OHMORI Keita	33-31	SATO Koichiro

2009-03-28: 30_Meijin_prelim(Japan)

SATO Koichiro	33-31	ARAKI Kentaro
MIYASHITA Naoto	33-31	SATO Koichiro
SATO Koichiro	33-31	KANOU Yuki
OHNO Daisuke	33-31	SATO Koichiro
ASAHINA Satoshi	33-31	SATO Koichiro
SATO Ryu	33-31	SATO Koichiro

2009-03-21: 32_King_State_A(Japan)

SATO Koichiro	50-14	IMAI Daiki
ITO Junya	52-12	SATO Koichiro
ISHIKAWA Akira	49-15	SATO Koichiro
SATO Koichiro	62-02	UEDA Mikiya
SATO Koichiro	45-19	MATSUYA Shinpei
MIYAZAKI Yuji	33-31	SATO Koichiro

2009-03-15: 2009_Tokyo_Expert_Prelim(Japan)

ISHIKAWA Akira	38-26	SATO Koichiro
SATO Koichiro	43-21	KOIDE Satoshi
IWATA Hiroyuki	42-22	SATO Koichiro
SATO Koichiro	41-23	WATANABE Keiichi
SHINOHARA Ryo	43-21	SATO Koichiro
SATO Koichiro	won against	KOBAYASHI Oh

2009-03-07: 54_Shinagawa_Open(Japan)

TAKANASHI Yusuke	38-26	SATO Koichiro
SATO Koichiro	42-22	WATANABE Hideaki
SATO Koichiro	38-26	UEDA Mikiya
KOBAYASHI Oh	won against	SATO Koichiro
SATO Koichiro	42-22	NAGASAKI Hidekazu
SATO Koichiro	33-31	SAWAKI Yusuke

2009-03-01: 62_Kanagawa_Open_B(Japan)

SATO Koichiro	46-18	KATO Yuzuru
SATO Koichiro	57-07	TANAKA Shuntaro
MURAKAMI Takeshi	42-22	SATO Koichiro
NODA Bintatsu	44-20	SATO Koichiro
OHMORI Keita	57-07	SATO Koichiro
SATO Koichiro	44-20	TANAKA Atsushi

2009-02-21: 31_King_State_A(Japan)

MIYAZAKI Yuji	39-25	SATO Koichiro
SATAKE Yosuke	33-31	SATO Koichiro
SATO Koichiro	34-30	NAGASHIMA Kazuhito
SATO Koichiro	54-10	WATANABE Keiichi
SATO Koichiro	51-13	OHTAKE Kosuke
SATO Koichiro	45-19	KOMAGATA Masayuki

2009-02-07: 53_Shinagawa_Open(Japan)

SATO Koichiro	won against	ISHIKAWA Akira
SATO Koichiro	36-28	SATO Tetsuya
IWATA Hiroyuki	40-24	SATO Koichiro
SUZUKI Yuta	39-25	SATO Koichiro
SATO Koichiro	39-25	HISHIYAMA Yuichi
SATO Koichiro	53-11	KOBAYASHI Manabu

2009-01-25: 28_King_State(Japan)

SATO Koichiro	38-26	WATAHIKI Kenta
SATO Koichiro	34-30	NAKANO Jo
SATO Koichiro	38-26	SANO Yoko
TAKANASHI Yusuke	34-30	SATO Koichiro
NARIYA Makoto	39-25	SATO Koichiro
SATO Koichiro	38-26	OZAWA Kou

2009-01-17: 30_King_State_A(Japan)

SATO Koichiro	41-23	TAKEDA Kyoko
SATANI Tetsu	43-21	SATO Koichiro
SATO Koichiro	37-27	KOSHINO Kazuhiko
SUZUKI Yuta	39-25	SATO Koichiro
SATO Koichiro	41-23	OHTAKE Kosuke
MIYAZAKI Yuji	41-23	SATO Koichiro

2009-01-03: Shinagawa_2009(Japan)

SUZUKI Kenta	36-28	SATO Koichiro
SATO Koichiro	36-28	TOKI Yugo
SATO Koichiro	51-13	SUGISAKI Harumi
SATO Koichiro	37-27	SATO Yuri
ISHIHARA Makoto	36-28	SATO Koichiro
ISHIKAWA Akira	37-27	SATO Koichiro
SATO Koichiro	39-25	TOKUSHIMA Akira

2008-12-27: Shinagawa_2008_A(Japan)

ITO Junya	38-26	SATO Koichiro
WATAHIKI Kenta	33-31	SATO Koichiro

2008-12-20: 29_King_State_A(Japan)

KOZUKA Katsuhiko	43-21	SATO Koichiro
KOMAGATA Masayuki	34-30	SATO Koichiro
SATO Koichiro	50-14	KOSHINO Kazuhiko
SATO Koichiro	33-31	WATANABE Hideaki
SATO Koichiro	34-30	SUZUKI Yuta
NAKAJIMA Tetsuya	46-18	SATO Koichiro

2008-12-14: 3_Shinagawa_Open(Japan)

SATO Koichiro	38-26	MIYAZAKI Yuji
SATO Koichiro	45-19	ARAKI Kentaro
ITO Junya	34-30	SATO Koichiro
YAMAKAWA Takashi	45-19	SATO Koichiro
SAWAKI Yusuke	45-19	SATO Koichiro
KOIDE Satoshi	33-31	SATO Koichiro
ENOMOTO Yasuhiro	42-22	SATO Koichiro

2008-12-06: 52_Shinagawa_open(Japan)

MIYAZAKI Yuji	34-30	SATO Koichiro
SATO Koichiro	38-26	ISHIKAWA Akira
SATO Koichiro	34-30	IIJIMA Takamune
SATO Koichiro	34-30	SATANI Tetsu
NAKAMURA Yuya	39-25	SATO Koichiro
SATO Koichiro	35-29	TOKI Yugo

2008-11-29: 25_King_State(Japan)

SATO Koichiro	36-28	KOSHINO Kazuhiko
SATO Koichiro	37-27	IWATA Hiroyuki
SATO Koichiro	33-31	TAKANASHI Yusuke
SATO Koichiro	36-28	SAWADA Tomohiro
SATO Koichiro	35-29	NOBUKAWA Hiroki
SATO Koichiro	42-22	SATAKE Yosuke

2008-11-15: 28_King_State_A(Japan)

NAKAJIMA Tetsuya	39-25	SATO Koichiro
ISHIKAWA Akira	35-29	SATO Koichiro
TAKEISHI Takuya	34-30	SATO Koichiro
SATO Koichiro	37-27	KOIDE Satoshi
SATO Koichiro	45-19	HAMADA Kikue
SATO Koichiro	60-04	SANO Yoko

2008-11-09: 108_Nagareyama_Open(Japan)

SATO Koichiro	36-28	WATAHIKI Kenta
SATO Koichiro	60-04	KAWADA Masaki
SATO Koichiro	35-29	HIKARU Hidemi
SATO Koichiro	50-14	GOTO Masahiro
MURAKAMI Takeshi	35-29	SATO Koichiro

2008-10-18: 27_King_State_A(Japan)

MURAKAMI Takeshi	42-22	SATO Koichiro
SATO Koichiro	39-25	KOIDE Satoshi
ISHIKAWA Akira	34-30	SATO Koichiro
SATO Koichiro	38-26	WATANABE Keiichi
MIYAZAKI Yuji	41-23	SATO Koichiro
SATO Koichiro	35-29	SANO Yoko

2008-10-12: 21_King_State(Japan)

SATO Koichiro	43-21	TANAKA Kensuke
SATO Koichiro	37-27	KOBAYASHI Syunjiro
WATAHIKI Kenta	46-18	SATO Koichiro
SATO Koichiro	33-31	SUZUKI Yuta
KOSHINO Kazuhiko	38-26	SATO Koichiro
KURAMOCHI Yuta	35-29	SATO Koichiro

2008-10-04: 50_Shinagawa_open(Japan)

SATO Koichiro	33-31	FUJITA Kousuke
SAWADA Tomohiro	33-31	SATO Koichiro
SUKO Masayuki	37-27	SATO Koichiro
SATO Koichiro	36-28	OHUCHI Yasuhiro
MITSUYA Nobuaki	39-25	SATO Koichiro
SATO Koichiro	33-31	OKADA Hionobu

2008-09-23: 20_King_state_Open(Japan)

SATO Koichiro	59-05	TOKI Yugo
SATO Koichiro	50-14	KOSHINO Kazuhiko
SATO Koichiro	won against	SUZUKI Yuta
SATO Koichiro	51-13	NOBUKAWA Hiroki
IWATA Hiroyuki	35-29	SATO Koichiro
SATO Koichiro	40-24	NAGANO Yasushi

2008-09-20: 26_King_State_special_A(Japan)

SATO Koichiro	46-18	ISHIKAWA Akira
ENOMOTO Yasuhiro	38-26	SATO Koichiro
KOZUKA Katsuhiko	34-30	SATO Koichiro
TANAKA Shuntaro	36-28	SATO Koichiro
SATO Koichiro	34-30	NOBUKAWA Hiroki
TATSUMI-IIJIMA Yukiko	35-29	SATO Koichiro

2008-09-15: 19_King_state_Open(Japan)

SATO Koichiro	37-27	WATANABE Hideaki
SHINOHARA Ryo	won against	SATO Koichiro
SATO Koichiro	52-12	SATO Tetsuya
SATO Koichiro	34-30	OHTAKE Kosuke
SATO Koichiro	41-23	IWATA Hiroyuki
SATO Koichiro	34-30	TESAKI Satoru

2008-09-14: 8_Saitama_open(Japan)

SATO Koichiro	40-24	SAITO Riki
SATO Koichiro	39-25	IZUMI Takashi
SATO Koichiro	38-26	YAMAZAKI Nobuyuki
GOTO Hiroshi	41-23	SATO Koichiro
KIUCHI Hideyuki	34-30	SATO Koichiro
MIYAZAKI Yuji	50-14	SATO Koichiro

2008-08-30: 18_King_state_Open(Japan)

SATO Koichiro	39-25	TESAKI Satoru
SANO Yoko	46-18	SATO Koichiro
SATO Koichiro	33-31	OKUDA Tsuyoshi
SATO Koichiro	33-31	KURACHI Takayuki
SATO Koichiro	48-16	ARAKI Kentaro
KOMAGATA Masayuki	37-27	SATO Koichiro

2008-08-26: 28_CH_Student_Final(Japan)

NAKAMURA Yuya	33-31	SATO Koichiro
SATO Koichiro	33-31	WATAHIKI Kenta
SATO Koichiro	33-31	OZAWA Kou
SATO Koichiro	33-31	NAGANO Yasushi
ARAKI Kentaro	33-31	SATO Koichiro
SATO Koichiro	33-31	MITSUYA Nobuaki
YAMAKAWA Takashi	33-31	SATO Koichiro

2008-08-26: 28_CH_Student_Prelim(Japan)

SATO Koichiro	33-31	KASHIWAGI Mitsuyoshi
SATO Koichiro	33-31	NAKAMURA Yuya
SATO Koichiro	33-31	ARAKI Kentaro
MITSUYA Nobuaki	33-31	SATO Koichiro
YAMAKAWA Takashi	33-31	SATO Koichiro
WATAHIKI Kenta	33-31	SATO Koichiro
SATO Koichiro	33-31	KASHIWAGI Mitsuyoshi

2008-08-23: 8_Anti_Resistance_Game(Japan)

FURUMOTO Yuki	40-24	SATO Koichiro
SATO Koichiro	41-23	OHMORI Keita
SATO Koichiro	50-14	KATO Tomihiro
ESAKI Yutsuka	39-25	SATO Koichiro
SATO Koichiro	35-29	FUJITA Takeshi
OKUDA Tsuyoshi	41-23	SATO Koichiro

2008-08-16: 25_King_State_special_A(Japan)

SATO Koichiro	35-29	AZUMA Hideki
SATO Koichiro	45-19	OKUDA Tsuyoshi
SATO Koichiro	44-20	NAKAJIMA Tetsuya
SATO Koichiro	37-27	KOSHINO Kazuhiko
KOIDE Satoshi	35-29	SATO Koichiro
SATO Koichiro	40-24	SAITO Riki

2008-08-10: 2_Shinagawa(Japan)

TAKANASHI Yusuke	45-19	SATO Koichiro
SATO Koichiro	34-30	SAWADA Tomohiro
SATO Koichiro	45-19	SATO Yuri
SATO Koichiro	43-21	IIJIMA Takamune
NAGASAKI Hidekazu	37-27	SATO Koichiro
ITO Junya	54-10	SATO Koichiro

2008-08-03: Yokohama_Open(Japan)

SATO Koichiro	38-26	NAGAMATSU Ryota
SATO Koichiro	47-17	TAKIGAWA Mitsuaki
SATO Koichiro	48-16	OKUDA Tsuyoshi
SATO Koichiro	45-19	SAITO Riki
SATO Koichiro	35-29	TSUKAMOTO Kazuma
SATO Koichiro	39-25	KOSHINO Kazuhiko

2008-08-02: 48_Shinagawa_open(Japan)

SATO Koichiro	34-30	KOBAYASHI Manabu
SATO Koichiro	40-24	AZUMA Hideki
TAKANASHI Yusuke	33-31	SATO Koichiro
NARIYA Makoto	52-12	SATO Koichiro
SATO Koichiro	40-24	OKUDA Tsuyoshi
SATO Koichiro	won against	SUKO Masayuki

2008-07-27: 17_King_state_Open(Japan)

SATO Koichiro	55-09	MASUDA Letaka
SATO Koichiro	34-30	NAKAJIMA Tetsuya
SATO Koichiro	46-18	NAGAMATSU Ryota
TATSUMI-IIJIMA Yukiko	39-25	SATO Koichiro
SATO Koichiro	36-28	ENOMOTO Yasuhiro
NOBUKAWA Hiroki	48-16	SATO Koichiro

2008-07-05: 47th Kanagawa seaside Open(Japan)

SATO Koichiro	won against	WATANABE Hideaki
MURAKAMI Takeshi	won against	SATO Koichiro
NAGASAKI Hidekazu	won against	SATO Koichiro
SATO Koichiro	won against	MORI Takahiro
SATO Koichiro	won against	ISHIKAWA Akira
SATO Koichiro	won against	OKAMOTO Akihiko

2008-07-05: 47_Shinagawa_open(Japan)

SATO Koichiro	34-30	WATANABE Hideaki
MURAKAMI Takeshi	33-31	SATO Koichiro
KOBAYASHI Syunjiro	37-27	SATO Koichiro
SATO Koichiro	43-21	MORI Takahiro
SATO Koichiro	43-21	ISHIKAWA Akira
SATO Koichiro	54-10	OKAMOTO Akihiko

2008-06-28: 16th King state special(Japan)

ISHIKAWA Akira	won against	SATO Koichiro
SATO Koichiro	lost to	YAMAZAKI Nobuyuki
SATO Koichiro	won against	KOBAYASHI Oh
SATO Koichiro	lost to	NODA Bintatsu
SATO Koichiro	won against	MORIKAWA Masayoshi
SATO Koichiro	won against	KURAMOCHI Yuta

2008-06-22: 2008 Tokyo block preliminary(Japan)

SATO Koichiro	won against	SHIMONOSONO Kozo
ITO Junya	won against	SATO Koichiro
SATO Koichiro	won against	WATANABE Hideaki
SATO Koichiro	won against	AZUMA Hideki
SATO Koichiro	lost to	ISHIHARA Makoto
SATO Koichiro	won against	KOMAGATA Masayuki
TSUCHIDA Daisuke	won against	SATO Koichiro

2008-06-21: 24th king state specialA(Japan)

OHMORI Keita	won against	SATO Koichiro
SATO Koichiro	won against	YAMAMOTO Kunihiro
TAKASE Humiya	won against	SATO Koichiro
SATO Koichiro	won against	UEDA Mikiya
SATO Koichiro	won against	TANAKA Atsushi
MURAKAMI Takeshi	won against	SATO Koichiro

2008-06-15: 15th King state special(Japan)

OZAWA Kou	lost to	SATO Koichiro
ISHIKAWA Akira	lost to	SATO Koichiro
ARAKI Kentaro	won against	SATO Koichiro
SATO Koichiro	won against	TOKI Hidenobu
TATSUMI-IIJIMA Yukiko	won against	SATO Koichiro
ISHIHARA Makoto	won against	SATO Koichiro

2008-06-08: 2008 Tokyo preliminary(Japan)

SATO Koichiro	won against	ISHIHARA Makoto
ENOMOTO Yasuhiro	won against	SATO Koichiro
KAMIO Mamoru	won against	SATO Koichiro
SATO Koichiro	won against	KOIDE Satoshi
SATO Koichiro	won against	TSUKAMOTO Kazuma
SATO Koichiro	won against	ISHIZAKI Hikaru

2008-06-08: 2008 Tokyo preliminary play-offs(Japan)

TSUCHIDA Daisuke

won against

SATO Koichiro

2008-06-07: 46_Shinagawa_open(Japan)

YAMAKAWA Takashi	54-10	SATO Koichiro
TOKI Hidenobu	42-22	SATO Koichiro
SATO Koichiro	63-01	TAKEDA Kyoko
ISHIKAWA Akira	won against	SATO Koichiro
SATO Koichiro	52-12	OHNO Atsuko
SATO Koichiro	48-16	KOBAYASHI Manabu

2008-05-31: 1st Shinagawa age championship (above 5609)(Japan)

NAKAJIMA Tetsuya	won against	SATO Koichiro
KOIDE Satoshi	won against	SATO Koichiro
SATO Koichiro	won against	MORI Takahiro
SATO Koichiro	won against	SATO Tetsuya
SATO Koichiro	won against	HISHIYAMA Yuichi
IIJIMA Takamune	won against	SATO Koichiro

2008-05-11: 13th King state special (Japan)

HISHIYAMA Yuichi	won against	SATO Koichiro
OHTAKE Kosuke	won against	SATO Koichiro
SATO Koichiro	won against	TANAKA Kensuke
SATO Koichiro	won against	SATO Takuma
WAKIMOTO Naoyuki	won against	SATO Koichiro
KITOU Shota	won against	SATO Koichiro

2008-05-05: 12th king state cup special (Japan)

SATO Koichiro	won against	OHUCHI Yasuhiro
SATO Koichiro	lost to	NAGAO Hiroto
SATO Koichiro	won against	TSUKAMOTO Kazuma
SATO Koichiro	won against	TATSUMI-IIJIMA Yukiko
ITO Junya	won against	SATO Koichiro
SATO Koichiro	won against	KURAMOCHI Yuta

2008-05-03: 20_Kyoto_open(Japan)

SATO Koichiro	59-05	KASAI Yuta
SUGASE Takahiro	38-26	SATO Koichiro
MATSUZAKA Katsuhiko	36-28	SATO Koichiro
SATO Koichiro	46-18	KIKAYA Ehira
SATO Koichiro	42-22	ISHIMOTO Kazuya
NAKAMORI Chiaki	36-28	SATO Koichiro
SATO Koichiro	52-12	NAGASHIMA Kazuhito

2008-04-27: 11th king state special (Japan)

SATO Koichiro	won against	KOSHINO Kazuhiko
GOTO Masahiro	won against	SATO Koichiro
SATO Koichiro	won against	OKUDA Tsuyoshi
KITOU Shota	won against	SATO Koichiro
NAKANO Jo	won against	SATO Koichiro
SATO Koichiro	won against	SATO Takuma

2008-04-19: 22th king state cup A(Japan)

SATO Koichiro	won against	HAMADA Kikue
SATO Koichiro	lost to	ITO Junya
SATO Koichiro	won against	SANO Yoko
SATO Koichiro	won against	KOIDE Satoshi
SATO Koichiro	won against	MITSUYA Nobuaki
NAKAJIMA Tetsuya	won against	SATO Koichiro

2008-04-12: 38th challenge cup A(Japan)

SATO Koichiro	won against	TAKEISHI Takuya
SATO Koichiro	won against	KOBAYASHI Oh
SATO Koichiro	won against	KANAI Ashizawa
SATO Koichiro	won against	NAGAMATSU Ryota
SATO Koichiro	won against	OKUDA Tsuyoshi
SATO Koichiro	won against	KITOU Shota

2008-04-05: 44_Shinagawa_open(Japan)

SATO Koichiro	40-24	HISHIYAMA Yuichi
OKUDA Tsuyoshi	49-15	SATO Koichiro
SATO Koichiro	55-09	HAMADA Kikue
WATANABE Hideaki	34-30	SATO Koichiro

2008-03-29: 10th King state special 2008(Japan)

SUKO Masayuki	won against	SATO Koichiro
SATO Koichiro	won against	TANIDA Keiko
ITO Junya	won against	SATO Koichiro
AIHARA Shigeaki	won against	SATO Koichiro
SATO Koichiro	won against	SATO Yuri
ISHIKAWA Akira	won against	SATO Koichiro

2008-03-15: 21st king state cup A(Japan)

SATO Koichiro	won against	KURITA Seiya
AZUMA Hideki	lost to	SATO Koichiro
NAGASHIMA Kazuhito	lost to	SATO Koichiro
NAKAJIMA Tetsuya	won against	SATO Koichiro
ENOMOTO Yasuhiro	won against	SATO Koichiro
SATO Koichiro	won against	URASHIMA Mei

2008-03-08: 37th challenge cup A(Japan)

SATO Koichiro	won against	SANO Yoko
ISHIHARA Makoto	won against	SATO Koichiro
TSUKAMOTO Kazuma	won against	SATO Koichiro
SATO Koichiro	lost to	WATANABE Keiichi
SATO Koichiro	won against	HISHIYAMA Yuichi
SATO Koichiro	won against	NAKANO Jo

2008-03-01: 43_Shinagawa_open(Japan)

SATO Koichiro	won against	WATANABE Keiichi
SATO Koichiro	47-17	SHIINA Mami
OKAMOTO Akihiko	38-26	SATO Koichiro
SATO Koichiro	43-21	OKUDA Tsuyoshi
TATSUMI-IIJIMA Yukiko	41-23	SATO Koichiro
SATO Koichiro	39-25	GOTO Masahiro

2008-02-11: 5th Kanto Game(Japan)

SATO Koichiro	lost to	OHNO Tomohiro
NAKAJIMA Tetsuya	won against	SATO Koichiro
SATO Koichiro	won against	IKEDA Atsuhiko
SATO Koichiro	won against	NAKAMURA Yuya
SATO Koichiro	won against	NAGASAKI Hidekazu

2008-02-10: 8th king state special(Japan)

SATO Koichiro	won against	MASUDA Letaka
KOSHINO Kazuhiko	won against	SATO Koichiro
NAKANO Jo	won against	SATO Koichiro
SATO Koichiro	won against	YAMADA Takeo
IIJIMA Takamune	won against	SATO Koichiro

2008-02-09: 36th challenge cup advanced(Japan)

SATO Koichiro	won against	OKAMOTO Akihiko
SATO Koichiro	won against	TOSAKA Hideki
SATO Koichiro	won against	ISHIHARA Makoto
ITO Junya	won against	SATO Koichiro
SATO Koichiro	won against	WAKIMOTO Naoyuki
SATO Koichiro	won against	YAMAGUCHI Yoshiaki

2008-02-02: 42_Shinagawa_open(Japan)

TATSUMI-IIJIMA Yukiko	33-31	SATO Koichiro
SATO Koichiro	42-22	HAMADA Kikue
SATO Koichiro	34-30	KOMAGATA Masayuki
AZUMA Hideki	45-19	SATO Koichiro
SATO Koichiro	45-19	SANO Yoko
SATO Koichiro	52-12	TESAKI Satoru

2008-01-27: 7th King state special (Japan)

SATO Koichiro	lost to	KURITA Seiya
SATO Koichiro	won against	SATO Yuri
SATO Koichiro	won against	AZUMA Hideki
SATO Koichiro	won against	SANO Yoko
OHMORI Keita	won against	SATO Koichiro
SATO Koichiro	won against	KOBAYASHI Kasa

2008-01-19: 19th King state cup advanced(Japan)

SATO Koichiro	lost to	KOSHINO Kazuhiko
SATO Koichiro	won against	ISHIHARA Makoto
WATAHIKI Kenta	lost to	SATO Koichiro
SATO Koichiro	lost to	TANIDA Kunihiko
AZUMA Hideki	won against	SATO Koichiro
SATO Koichiro	won against	MIYAZAKI Yuji

2008-01-12: 35th challenge cup advanced(Japan)

SATO Koichiro	won against	TAKIGAWA Mitsuaki
OZAWA Kou	won against	SATO Koichiro
YAMAMOTO Kunihiro	won against	SATO Koichiro
SATO Koichiro	won against	KOSHINO Kazuhiko
SATO Koichiro	won against	MORI Takahiro
SATO Koichiro	won against	SATAKE Yosuke

2008-01-06: Shinagawa Open 2008 advanced(Japan)

SATO Koichiro	won against	MORIMOTO Baidu
SATO Koichiro	won against	YAMAZAKI Nobuyuki
SATO Koichiro	won against	MORINAGA Syou
SATO Koichiro	won against	IWATA Hiroyuki
WATANABE Hajime	won against	SATO Koichiro
SATO Koichiro	won against	MATSUYA Shinpei

2008-01-03: Shinagawa Open 2008(Japan)

SATO Koichiro	won against	TAKADA Hidesato
OKAWA Akira	lost to	SATO Koichiro
TSUCHIDA Daisuke	lost to	SATO Koichiro
IWATA Hiroyuki	won against	SATO Koichiro
OHHASHI Tomoshige	won against	SATO Koichiro
WATANABE Hajime	won against	SATO Koichiro
TAKANASHI Yusuke	won against	SATO Koichiro

2007-12-29: 5th king state cup 2007(Japan)

SATO Koichiro	lost to	WATANABE Keiichi
SATO Koichiro	won against	WATANABE Hajime
YAMAZAKI Nobuyuki	won against	SATO Koichiro
ASAHINA Satoshi	won against	SATO Koichiro
SATO Koichiro	won against	KATO Tomihiro
SATO Koichiro	won against	KOIDE Satoshi

2007-12-24: 5th king state special(Japan)

SATO Koichiro	won against	IKEDA Atsuhiko
ISHIKAWA Akira	lost to	SATO Koichiro
SATO Koichiro	lost to	YAMAZAKI Nobuyuki
SATO Koichiro	won against	SHIROTA Yasuto
NAGASAKI Hidekazu	won against	SATO Koichiro
SATO Koichiro	won against	MORI Takahiro

2007-12-09: 4th King State cup special 2007(Japan)

SATO Koichiro	won against	GOTO Masahiro
SATO Koichiro	won against	HAYAKAWA Shigeru
SATO Koichiro	lost to	KATO Taiji
NAGASAKI Hidekazu	won against	SATO Koichiro
SATO Koichiro	won against	SANO Yoko
SATO Koichiro	won against	SUKO Masayuki

2007-11-10: 33rd challenge cup - A(Japan)

ISHIHARA Makoto	won against	SATO Koichiro
KATO Taiji	won against	SATO Koichiro
SATO Koichiro	won against	ITO Junya
SATO Koichiro	won against	UEDA Mikiya
SATO Koichiro	lost to	NAKAMURA Yuya
SATO Koichiro	won against	SAKURAI Takeuchi

2007-11-04: 55th Kanagawa Open A(Japan)

SATO Koichiro	won against	ITAGAKI Kenichi
WATAHIKI Kenta	won against	SATO Koichiro
SATO Koichiro	won against	TOKUSHIMA Akira
TAMAKI Kyotaro	won against	SATO Koichiro
OHMORI Keita	won against	SATO Koichiro
SATO Koichiro	won against	KOBAYASHI Manabu

2007-11-03: 41_Shinagawa_open(Japan)

NAKAJIMA Tetsuya	58-06	SATO Koichiro
SATO Koichiro	53-11	SAKURAI Takeuchi
SATO Koichiro	38-26	KOSHINO Kazuhiko
SATO Koichiro	53-11	TSUKAMOTO Kazuma
SATO Koichiro	42-22	OKUDA Tsuyoshi
TOMINAGA Kenta	47-17	SATO Koichiro

2007-10-20: 16th giant king state cup(Japan)

TOMINAGA Kenta	won against	SATO Koichiro
SATO Koichiro	won against	TATSUMI-IIJIMA Yukiko
ITO Junya	won against	SATO Koichiro
ENOMOTO Yasuhiro	lost to	SATO Koichiro
MURAKAMI Takeshi	won against	SATO Koichiro
NAGASAKI Hidekazu	won against	SATO Koichiro

2007-10-13: 32nd challenge cup - A(Japan)

WATANABE Hideaki	lost to	SATO Koichiro
SATO Koichiro	won against	KOBAYASHI Kasa
NAKAMURA Yuya	lost to	SATO Koichiro
WATAHIKI Kenta	won against	SATO Koichiro
SATO Koichiro	won against	NAKANO Jo
ITO Junya	won against	SATO Koichiro

2007-10-06: 40th Shinagawa seaside opening(Japan)

SATO Koichiro	won against	NAKAO Takahiro
SATO Koichiro	won against	SUKO Masayuki
SATO Koichiro	won against	NAGASAKI Hidekazu
SATO Koichiro	won against	WATANABE Hideaki
NAKAJIMA Tetsuya	won against	SATO Koichiro
KATO Taiji	won against	SATO Koichiro

2007-10-06: 40_Shinagawa_open(Japan)

SATO Koichiro	47-17	NAKAO Takahiro
SATO Koichiro	36-28	SUKO Masayuki
SATO Koichiro	43-21	NAGASAKI Hidekazu
SATO Koichiro	59-05	WATANABE Hideaki
NAKAJIMA Tetsuya	47-17	SATO Koichiro
KATO Taiji	50-14	SATO Koichiro

2007-09-23: 2nd giant king special(Japan)

NAKAMURA Yuya	won against	SATO Koichiro
SATO Koichiro	won against	KAWAGUCHI Genki
SATO Koichiro	won against	KOIDE Satoshi
NAKAJIMA Tetsuya	won against	SATO Koichiro
SAWAKI Yusuke	lost to	SATO Koichiro
WATAHIKI Kenta	won against	SATO Koichiro

2007-09-09: 8th Ueno Open(Japan)

SATO Koichiro	won against	ITO Taishou
SATO Koichiro	won against	KANDA Yoshihiro
SATO Koichiro	won against	MITSUYA Nobuaki
TAKANASHI Yusuke	won against	SATO Koichiro
NAKAJIMA Tetsuya	won against	SATO Koichiro

2007-09-08: 31st challenge cup - A(Japan)

SATO Koichiro	won against	AKIYAMA Tatsumi
SATO Koichiro	won against	TSUKAMOTO Kazuma
SATO Koichiro	won against	TAKEISHI Takuya
SATO Naohiro	won against	SATO Koichiro
SATO Koichiro	won against	TANAKA Atsushi
SATO Koichiro	won against	SAKURAI Yoshinari

2007-09-02: 39th Shinagawa seaside tournament(Japan)

MURAKAMI Takeshi	lost to	SATO Koichiro
TOMINAGA Kenta	won against	SATO Koichiro
SATO Koichiro	won against	WATANABE Hideaki
SATO Koichiro	lost to	ITO Junya
SATO Koichiro	won against	SANO Yoko
SATO Koichiro	won against	KOZUKA Katsuhiko

2007-09-01: 39_Shinagawa_open(Japan)

SATO Koichiro	34-30	MURAKAMI Takeshi
TOMINAGA Kenta	36-28	SATO Koichiro
SATO Koichiro	53-11	WATANABE Hideaki
ITO Junya	41-23	SATO Koichiro
SATO Koichiro	50-14	SANO Yoko
SATO Koichiro	41-23	KOZUKA Katsuhiko

2007-08-04: 38_Shinagawa_open(Japan)

TANIDA Kunihiko	34-30	SATO Koichiro
SATO Koichiro	55-09	HINO Kazue
SATO Koichiro	39-25	IIJIMA Takamune
TSUKAMOTO Kazuma	40-24	SATO Koichiro
SATO Koichiro	38-26	KURACHI Takayuki
ITO Junya	43-21	SATO Koichiro

2007-07-07: 37_Shinagawa_open(Japan)

SATO Koichiro	33-31	TAKEISHI Takuya
SATO Koichiro	45-19	NAKAMORI Hiroki
SATO Koichiro	40-24	OHNO Atsuko
KATO Taiji	48-16	SATO Koichiro
SUKO Masayuki	39-25	SATO Koichiro
SATO Koichiro	41-23	ITO Junya

2007-06-09: 29th Chiyarenshi Open(Japan)

SATO Koichiro	won against	NISHIYAMA Momoko
SATO Koichiro	won against	KATO Taiji
SATO Koichiro	won against	KOBAYASHI Manabu
ITO Junya	won against	SATO Koichiro
SATO Koichiro	won against	OZAWA Kou
SATO Koichiro	won against	WATANABE Keiichi

2007-06-02: 36_Shinagawa_open(Japan)

OZAWA Kou	33-31	SATO Koichiro
SATO Koichiro	57-07	TSUKAMOTO Kazuma
SATO Koichiro	42-22	KOBAYASHI Oh
SATO Koichiro	39-25	NAGASAKI Hidekazu
SATO Koichiro	39-25	ROSE Brian
NAKAJIMA Tetsuya	40-24	SATO Koichiro

2007-05-13: 5th Ueno Open(Japan)

SATO Koichiro	won against	SHIMIZU Kenko
TOMINAGA Kenta	won against	SATO Koichiro
ROSE Brian	won against	SATO Koichiro
SATO Koichiro	won against	KOSHINO Kazuhiko
SATO Koichiro	won against	OMODERA Osamu

2007-05-05: 35_Shinagawa_open(Japan)

YAMAKAWA Takashi	35-29	SATO Koichiro
SATO Koichiro	47-17	HANO Rumiko
SATO Koichiro	45-19	SUKO Masayuki
SATO Koichiro	35-29	WATAHIKI Kenta
TAKANASHI Yusuke	43-21	SATO Koichiro
SATO Koichiro	39-25	MIYASHITA Naoto

2007-04-07: 34_Shinagawa_open(Japan)

TANIDA Kunihiko	36-28	SATO Koichiro
SATO Koichiro	38-26	TATSUMI-IIJIMA Yukiko
SATO Koichiro	36-28	SUKO Masayuki
SATO Koichiro	42-22	WATANABE Kenji
SATO Koichiro	35-29	ISHIHARA Makoto
SATO Koichiro	34-30	TAKANASHI Yusuke

2007-03-25: 28_Meijin_finals(Japan)

SATO Koichiro	48-16	NAKAMORI Hiroki
TAKIZAWA Masaki	62-02	SATO Koichiro
OMODERA Osamu	33-31	SATO Koichiro
SATO Koichiro	37-27	OHUCHI Yasuhiro
SATO Koichiro	38-26	KAWAGASHIRA Kuniharu
MATSUMOTO Hiroshi	41-23	SATO Koichiro

2007-03-04: 52nd Kanagawa Open A(Japan)

MATSUZAWA Atsushi	won against	SATO Koichiro
NAKAMURA Yuki	won against	SATO Koichiro
SATO Koichiro	won against	OHNO Atsuko
SATO Koichiro	won against	KOSHINO Kazuhiko
SATO Koichiro	won against	NARIYA Makoto
SATO Koichiro	won against	TAKASHIMA Ryoji

2007-03-03: 33_Shinagawa_open(Japan)

SATO Koichiro	45-19	HAMADA Kikue
SATO Koichiro	38-26	NARIYA Makoto
SATO Koichiro	44-20	WATANABE Kenji
SATO Koichiro	35-29	OKAMOTO Akihiko
MITSUYA Nobuaki	34-30	SATO Koichiro

2007-02-10: 25th Chirayenji Open(Japan)

SATO Koichiro	won against	WATAHIKI Kenta
SATO Koichiro	won against	MITSUYA Nobuaki
SATO Koichiro	won against	UCHIO Yukihiko
SATO Koichiro	won against	OZAWA Kou
SATO Koichiro	won against	OKAMOTO Akihiko
SATO Koichiro	won against	ISOBE Seiji

2007-02-03: 32_Shinagawa_open(Japan)

TOMINAGA Kenta	43-21	SATO Koichiro
SATO Koichiro	46-18	OZAWA Kou
TATSUMI-IIJIMA Yukiko	33-31	SATO Koichiro
SATO Koichiro	48-16	NAKANO Maseru
WATAHIKI Kenta	44-20	SATO Koichiro
TODA Tomoya	42-22	SATO Koichiro

2006-12-23: Shinagawa champion(Japan)

SUKO Masayuki

won against

SATO Koichiro

2006-12-09: 23rd Chiyarenshi Open(Japan)

SATO Koichiro	won against	OKUDA Tsuyoshi
SATO Koichiro	won against	KIKUKAWA Takamichi
SATO Koichiro	won against	OHNAKA Kenichiro
SATO Koichiro	won against	MIYASHITA Naoto
SATO Koichiro	won against	AKITA Takuma
MITSUYA Nobuaki	won against	SATO Koichiro

2006-11-25: 3rd Tatebayashi Open(Japan)

ISHIHARA Makoto	lost to	SATO Koichiro
NAGASAKI Hidekazu	won against	SATO Koichiro
WATANABE Keiichi	won against	SATO Koichiro
SATO Koichiro	won against	HATA Akihiko
TAKASE Humiya	won against	SATO Koichiro

2006-11-11: 22nd Chiyarenshi Open(Japan)

SATO Koichiro	won against	SATO Tetsuya
SATO Koichiro	won against	OHNO Atsuko
SATO Koichiro	won against	NOGAMI Yoshiyuki
SATO Koichiro	won against	OKAMOTO Akihiko
TAKANASHI Yusuke	won against	SATO Koichiro
SATO Koichiro	won against	MITSUYA Nobuaki

2006-11-04: 30_Shinagawa_open(Japan)

SATO Koichiro	34-30	TATSUMI-IIJIMA Yukiko
KOBAYASHI Manabu	40-24	SATO Koichiro
SATO Koichiro	37-27	NOGAMI Yoshiyuki
SATO Koichiro	51-13	KIMURA Masashi
SATO Koichiro	43-21	WATANABE Keiichi
NAGASAKI Hidekazu	36-28	SATO Koichiro

2006-10-14: 29_Shinagawa_open(Japan)

NAKAJIMA Tetsuya	37-27	SATO Koichiro
TATSUMI-IIJIMA Yukiko	35-29	SATO Koichiro
YASHIRO Miyabi	33-31	SATO Koichiro
MITSUYA Nobuaki	38-26	SATO Koichiro
SATO Koichiro	49-15	YUBARA Satoshi
OZAWA Kou	35-29	SATO Koichiro

2006-09-09: 20th Chiyarenshi Open(Japan)

SUKO Masayuki	won against	SATO Koichiro
SATO Koichiro	won against	HIGUCHI Sayuki
SATO Koichiro	won against	YAMAMOTO Kunihiro
SATO Koichiro	won against	SATO Tetsuya
OHUCHI Yasuhiro	won against	SATO Koichiro
SATO Koichiro	won against	OKUDA Tsuyoshi

2006-09-02: 28_Shinagawa_open(Japan)

NAKAJIMA Tetsuya	38-26	SATO Koichiro
SATO Koichiro	51-13	OKAWA Akira
SATO Koichiro	35-29	NAGASHIMA Kazuhito
SATO Koichiro	41-23	WATANABE Hideaki
NAKAMORI Hiroki	34-30	SATO Koichiro
IIJIMA Takamune	won against	SATO Koichiro

2006-08-05: 27_Shinagawa_open(Japan)

SATO Koichiro	49-15	HAMADA Kikue
NAKAJIMA Tetsuya	41-23	SATO Koichiro
SATO Koichiro	34-30	MORI Takahiro
SATO Koichiro	33-31	KOSHINO Kazuhiko
OHUCHI Yasuhiro	51-13	SATO Koichiro
ISHII Yasuhiro	34-30	SATO Koichiro

2006-07-01: 26_Shinagawa_open(Japan)

SATO Koichiro	43-21	WATANABE Keiichi
SATO Koichiro	38-26	NOGAMI Yoshiyuki
SATO Koichiro	43-21	NODA Bintatsu
SATO Koichiro	won against	OHYANAGI Masaki
NAKAJIMA Tetsuya	39-25	SATO Koichiro
NARIYA Makoto	52-12	SATO Koichiro

2006-06-03: 25_Shinagawa_open(Japan)

SATO Koichiro	40-24	SATO Tetsuya
SATO Koichiro	48-16	KOBAYASHI Manabu
SUKO Masayuki	37-27	SATO Koichiro
SATO Koichiro	47-17	KOIDE Satoshi

2006-04-08: 23_Shinagawa_open(Japan)

SATO Koichiro	37-27	MORI Takahiro
SATO Koichiro	47-17	HAYAKAWA Shigeru
KOMAGATA Masayuki	won against	SATO Koichiro
SATO Koichiro	55-09	SATO Tetsuya

2006-03-26: 27_Meijin(Japan)

HIRAKAWA Yuki	64-00	SATO Koichiro
NAKAMURA Yuya	64-00	SATO Koichiro
SATO Koichiro	64-00	UMEZAWA Yoshinori
ISHII Kiyotaka	64-00	SATO Koichiro
SATO Koichiro	64-00	OKI Chikara
SATO Koichiro	64-00	AOKI Takashi
KANDA Yoshihiro	64-00	SATO Koichiro

2006-03-11: 22_Shinagawa_open(Japan)

SATO Koichiro	38-26	SUEKUNI Makoto
KIUCHI Hideyuki	44-20	SATO Koichiro
SATO Koichiro	53-11	KOSHINO Kazuhiko
SAWAKI Yusuke	won against	SATO Koichiro
SATO Koichiro	34-30	YAGI Masaki
NAGASHIMA Kazuhito	45-19	SATO Koichiro

2006-02-18: 2nd Kanto Game(Japan)

MURAKAMI Takeshi	won against	SATO Koichiro
SATO Koichiro	won against	KOBAYASHI Manabu
SATO Koichiro	won against	SHIMIZU Kouichi
OKUDA Tsuyoshi	won against	SATO Koichiro
SATO Koichiro	won against	SAWADA Tomohiro
SATO Koichiro	won against	YAMADA Yuichi

2005-12-10: 20_Shinagawa_open(Japan)

NAKAJIMA Tetsuya	36-28	SATO Koichiro
NAGUMO Natsuhiko	39-25	SATO Koichiro
SATO Koichiro	33-31	SATO Tetsuya
OKUDA Tsuyoshi	51-13	SATO Koichiro
SATO Koichiro	52-12	YASHIRO Miyabi
SATO Koichiro	43-21	MITSUYA Nobuaki

2005-10-15: 18_Shinagawa_open(Japan)

SATO Koichiro	46-18	AZUMA Kato
MIYAKE Yasuo	39-25	SATO Koichiro
SATO Koichiro	34-30	WATANABE Keiichi
KOMAGATA Masayuki	54-10	SATO Koichiro
SATO Koichiro	39-25	NOGAMI Yoshiyuki
SATO Koichiro	48-16	SAKAMOTO Hitoshi

2005-09-17: 17_Shinagawa_open(Japan)

SATO Koichiro	33-31	NOGAMI Yoshiyuki
NAGASAKI Hidekazu	42-22	SATO Koichiro
SATO Koichiro	44-20	DOJUN Makiko
HAYASHI Yusuke	49-15	SATO Koichiro
SATO Koichiro	39-25	SHIMIZU Kouichi
SATO Koichiro	33-31	WATANABE Yurie

2005-08-06: 16_Shinagawa_open(Japan)

SATO Koichiro	37-27	YASHIRO Miyabi
NAGUMO Natsuhiko	34-30	SATO Koichiro
MURAKAMI Takeshi	36-28	SATO Koichiro
TAKEDA Kyoko	36-28	SATO Koichiro
SATO Koichiro	37-27	NAKAJIMA Yukari
MIGAMO Shinya	33-31	SATO Koichiro

2005-07-09: 15_Shinagawa_open(Japan)

SATO Koichiro	35-29	SANO Yoko
OGAWA Daisuke	38-26	SATO Koichiro
SHIMIZU Kouichi	44-20	SATO Koichiro
SATO Koichiro	45-19	TANAKA Irie
OHUCHI Yasuhiro	51-13	SATO Koichiro
SATO Koichiro	37-27	ENOMOTO Yasuhiro

SATO Koichiro (Japan)

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