Oya Kouichi

Graph

Data

Wins	76
Losses	115
Total	191
Link	https://www.nihonkiin.or....
Link	https://www.baduk.or.kr/r...
Link	http://senseis.xmp.net/?O...
Link	https://ja.wikipedia.org/...
Date of Birth	1966-03-22

Game List

Date	Rating	Color	Result	Opponent			Kifu
2026-08-03	2856	Black	Win	Nakajima Mieko	2632	♀	\| nihon_kiin \|
2026-07-09	2856	Black	Loss	Seki Koutarou	3308	♂	\| nihon_kiin \|
2026-03-30	2856	White	Loss	Toyoda Hirohito	2968	♂	\| nihon_kiin \| go4go \|
2026-02-12	2856	Black	Loss	Jo Bunen	2972	♀	\| nihon_kiin \| go4go \|
2025-08-18	2859	Black	Loss	Izawa Akino	2749	♀	\| nihon_kiin \|
2025-01-30	2867	Black	Loss	Yoda Norimoto	3205	♂	\| nihon_kiin \| go4go \|
2025-01-20	2868	White	Loss	Kobayashi Izumi	2919	♀	\| nihon_kiin \| go4go \|
2024-09-23	2875	Black	Loss	Shimojima Yohei	3049	♂	\| nihon_kiin \|
2024-08-22	2877	Black	Win	Nyu Eiko	3036	♀	\| nihon_kiin \| go4go \|
2023-08-21	2894	White	Loss	Kono Takashi	3066	♂	\| nihon_kiin \| go4go \|
2023-07-13	2896	Black	Loss	Chang Hsu	3334	♂	\| nihon_kiin \| go4go \|
2022-12-12	2908	Black	Win	Osuka Seira	2700	♀	\| nihon_kiin \| go4go \|
2022-08-22	2913	Black	Loss	Hsieh Yi Min	3068	♀	\| nihon_kiin \| go4go \|
2021-11-29	2929	Black	Loss	Cho Chi Hun	3190	♂	\| nihon_kiin \| go4go \|
2021-08-30	2935	White	Win	Takemiya Yoko	2810	♂	\| nihon_kiin \| go4go \|
2021-08-30	2935	White	Win	Okada Yumiko	2627	♀	\| nihon_kiin \| go4go \|
2021-08-30	2935	Black	Loss	Kurotaki Masaki	2937	♂	\| nihon_kiin \| go4go \|
2020-12-24	2952	White	Loss	Motoki Katsuya	3375	♂	\| nihon_kiin \| go4go \|
2020-12-21	2952	Black	Win	Yoda Norimoto	3260	♂	\| nihon_kiin \| go4go \|
2020-11-09	2953	Black	Loss	Hsu Chia Yuan	3485	♂	\| nihon_kiin \| go4go \|
2020-11-01	2954	Black	Loss	Mochizuki Kenichi	3140	♂	\| nihon_kiin \| go4go \|
2020-11-01	2954	Black	Loss	Yamamoto Kentaro	2832	♂	\| nihon_kiin \| go4go \|
2020-10-31	2954	Black	Loss	Ogata Masaki	3119	♂	\| nihon_kiin \| go4go \|
2020-10-31	2954	Black	Win	Omori Yasushi	2878	♂	\| nihon_kiin \| go4go \|
2020-08-24	2959	White	Win	Nakazawa Ayako	2664	♀	\| nihon_kiin \| go4go \|
2020-08-24	2959	White	Win	Anzai Nobuaki	3278	♂	\| nihon_kiin \| go4go \|
2019-12-12	2967	White	Win	Ueno Risa	2926	♀	\| nihon_kiin \| go4go \|
2019-10-24	2968	White	Loss	Hsieh Yi Min	3069	♀	\| nihon_kiin \| go4go \|
2019-09-16	2969	Black	Loss	Iguchi Toyohide	3064	♂	\| nihon_kiin \| go4go \|
2019-09-12	2969	White	Loss	Seki Koutarou	3248	♂	\| nihon_kiin \| go4go \|
2019-07-18	2972	Black	Win	Takemiya Masaki	3003	♂	\| nihon_kiin \|
2018-11-20	2979	Black	Loss	Ohashi Hirofumi	3148	♂	\| go4go \|
2017-12-21	2992	Black	Loss	Imamura Toshiya	3220	♂	\| go4go \|
2017-06-22	3000	Black	Loss	Kataoka Satoshi	3114	♂	\| nihon_kiin \| go4go \|
2016-12-15	3011	White	Loss	Huang Yih Tzuu	3270	♂	\| go4go \|
2016-10-20	3015	White	Win	Ishida Yoshio	3041	♂	\| nihon_kiin \| go4go \|
2015-12-24	3029	White	Loss	Yukawa Mitsuhisa	3116	♂	\| go4go \|
2015-11-26	3031	Black	Loss	Ishida Yoshio	3047	♂	\| nihon_kiin \| go4go \|
2015-11-07	3032	White	Loss	Wang Ming Wan	3191	♂	\| nihon_kiin \| go4go \|
2015-10-08	3035	White	Win	Kobayashi Satoru	3227	♂	\| nihon_kiin \| go4go \|
2015-01-26	3050	Black	Loss	Hong Seokui	3198	♂	\| go4go \|
2014-04-10	3071	Black	Win	Ishida Yoshio	3071	♂	\| nihon_kiin \| go4go \|
2014-03-27	3072	Black	Loss	Otake Hideo	3042	♂	\| go4go \|
2014-02-06	3075	Black	Win	Hsu Chia Yuan	3356	♂	\| go4go \|
2013-12-12	3078	White	Loss	Ishida Yoshio	3078	♂	\| nihon_kiin \| go4go \|
2013-11-28	3079	White	Loss	Ichiriki Ryo	3344	♂	\| nihon_kiin \| go4go \|
2013-02-07	3099	Black	Loss	Su Yaoguo	3178	♂	\| go4go \|
2013-01-19	3100	Black	Loss	Yuki Satoshi	3333	♂	\| nihon_kiin \| go4go \|
2013-01-17	3100	White	Win	Shuto Shun	3171	♂	\| go4go \|
2012-12-15	3102	Black	Win	Tsuruyama Atsushi	3167	♂	\| nihon_kiin \| go4go \|
2012-11-17	3104	White	Win	Yamashita Keigo	3373	♂	\| nihon_kiin \| go4go \|
2012-11-08	3104	Black	Win	Kobayashi Satoru	3241	♂	\| nihon_kiin \| go4go \|
2012-07-09	3103	White	Win	Imamura Yoshiaki	3030	♂	\| nihon_kiin \|
2012-07-09	3103	Black	Win	Furuya Yutaka	3072	♂	\| nihon_kiin \|
2012-04-19	3100	Black	Loss	Hwang Jinhyung	3037	♂	\| kba \| go4go \|
2012-01-12	3098	Black	Win	Nishimura Keiji	2956	♂	\| go4go \|
2012-01-12	3098	White	Loss	Yoda Norimoto	3265	♂	\| go4go \|
2011-12-03	3097	White	Loss	Takao Shinji	3380	♂	\| go4go \|
2011-11-17	3097	Black	Loss	Takao Shinji	3380	♂	\| go4go \|
2011-09-10	3097	Black	Win	Ogaki Yusaku	3064	♂	\| go4go \|
2011-04-29	3094	White	Loss	Lee Changho	3492	♂	\| kba \| go4go \|
2011-03-31	3093	White	Loss	Su Yaoguo	3179	♂	\| go4go \|
2011-01-13	3093	Black	Loss	Mitani Tetsuya	3179	♂	\| go4go \|
2010-05-13	3094	White	Loss	Kono Rin	3374	♂	\| go4go \|
2009-11-30	3096	White	Loss	Kato Atsushi	3172	♂	\| go4go \|
2009-09-03	3099	White	Win	Lin Hai Fong	3064	♂	\| go4go \|
2009-08-20	3099	White	Loss	Yuki Satoshi	3341	♂	\| go4go \|
2009-07-23	3099	Black	Win	Cho Chi Hun	3270	♂	\| go4go \|
2009-06-18	3099	Black	Loss	Huang Yih Tzuu	3226	♂	\| go4go \|
2009-01-15	3100	White	Win	Takemiya Masaki	3185	♂	\| go4go \|
2008-12-18	3099	White	Loss	Wang Ming Wan	3233	♂	\| go4go \|
2008-12-11	3099	White	Loss	Ryu Si Hoon	3245	♂	\| go4go \|
2008-11-27	3099	White	Win	Yoda Norimoto	3296	♂	\| go4go \|
2008-09-04	3097	White	Loss	Otake Hideo	3078	♂	\| go4go \|
2008-01-10	3096	Black	Loss	Cho Sun Jin	3227	♂	\| go4go \|
2007-12-06	3096	Black	Loss	Takao Shinji	3393	♂	\| go4go \|
2007-03-15	3099	White	Loss	Yang Chia Yuan	3028	♂	\| go4go \|
2006-12-07	3102	Black	Loss	Takemiya Masaki	3168	♂	\| go4go \|
2006-07-03	3109	White	Loss	Chang Hsu	3450	♂	\| go4go \|
2006-05-29	3111	Black	Win	Yoda Norimoto	3342	♂	\| go4go \|
2006-05-25	3111	Black	Loss	Cho Chi Hun	3330	♂	\| go4go \|
2006-05-01	3112	Black	Win	Mizokami Tomochika	3226	♂	\| go4go \|
2006-02-16	3113	White	Loss	Kobayashi Satoru	3303	♂	\| go4go \|
2006-02-07	3113	Black	Loss	Takao Shinji	3409	♂	\| go4go \|
2006-01-12	3113	White	Loss	Kataoka Satoshi	3206	♂	\| go4go \|
2005-12-20	3114	Black	Win	Abe Yoshiteru	2843	♂	\| go4go \|
2005-12-20	3114	Black	Win	Hashimoto Yujiro	2999	♂	\| go4go \|
2005-12-05	3114	Black	Win	Yamada Kimio	3290	♂	\| go4go \|
2005-10-20	3114	Black	Loss	Cho Chi Hun	3331	♂	\| go4go \|
2005-01-18	3114	White	Win	Aragaki Takeshi	2858	♂	\| go4go \|
2005-01-06	3114	Black	Loss	Yokota Shigeaki	3140	♂	\| go4go \|
2004-12-20	3114	White	Win	Ryu Si Hoon	3211	♂	\| go4go \|
2004-07-15	3112	Black	Loss	Wang Li Chen	3274	♂	\| go4go \|
2004-06-10	3112	White	Loss	Oba Junya	2932	♂	\| go4go \|
2004-03-02	3114	White	Loss	Kamimura Haruo	3073	♂	\| go4go \|
2004-01-27	3116	White	Win	Nakaonoda Tomomi	3137	♂	\| go4go \|
2003-12-01	3117	Black	Loss	Wang Li Chen	3295	♂	\| go4go \|
2003-07-27	3121	Black	Win	Hane Naoki	3323	♂	\| go4go \|
2003-06-23	3122	White	Loss	Cho Sun Jin	3249	♂	\| go4go \|
2003-05-26	3122	Black	Win	Kono Rin	3262	♂	\| go4go \|
2003-04-07	3122	White	Loss	Wang Li Chen	3288	♂	\| go4go \|
2003-01-20	3122	Black	Win	Otake Hideo	3140	♂	\| go4go \|
2003-01-20	3122	White	Win	Abe Yoshiteru	2841	♂	\| go4go \|
2002-12-09	3121	Black	Win	Kataoka Satoshi	3164	♂	\| go4go \|
2002-12-09	3121	White	Win	Yokota Shigeaki	3127	♂	\| go4go \|
2002-11-07	3119	Black	Loss	Kenmochi Jo	2971	♂	\| go4go \|
2002-04-21	3112	Black	Loss	Chen Kayui	3035	♂	\| go4go \|
2001-04-29	3108	White	Loss	Yuki Satoshi	3301	♂	\| go4go \|
2001-04-05	3108	Black	Loss	Yuki Satoshi	3299	♂	\| go4go \|
2001-03-08	3108	White	Loss	Cho Chi Hun	3345	♂	\| go4go \|
2001-02-08	3109	White	Loss	Hane Naoki	3287	♂	\| go4go \|
2001-01-18	3109	White	Win	Otake Hideo	3186	♂	\| go4go \|
2000-12-07	3109	Black	Win	Yamada Kimio	3283	♂	\| go4go \|
2000-11-09	3108	Black	Loss	Chang Hsu	3293	♂	\| go4go \|
2000-10-19	3108	Black	Loss	Cho Sun Jin	3274	♂	\| go4go \|
2000-09-18	3108	Black	Loss	Cho Sun Jin	3274	♂	\| go4go \|
2000-07-13	3108	Black	Win	Kataoka Satoshi	3194	♂	\| go4go \|
1999-07-01	3103	White	Loss	Kato Masao	3305	♂	\| go4go \|
1999-06-20	3103	Black	Loss	Yoshida Mika	2883	♀	\| go4go \|
1999-04-29	3104	Black	Win	Hane Naoki	3248	♂	\| go4go \|
1999-02-01	3103	White	Loss	Tokimoto Hajime	3075	♂	\| go4go \|
1998-12-22	3104	White	Win	Muramatsu Ryuichi	2971	♂	\| go4go \|
1998-09-17	3104	Black	Loss	Wang Li Chen	3346	♂	\| go4go \|
1998-08-23	3104	White	Loss	Tono Hiroaki	3240	♂	\| go4go \|
1998-08-20	3104	Black	Win	Oyama Kunio	3028	♂	\| go4go \|
1998-07-23	3105	Black	Win	Kato Masao	3306	♂	\| go4go \|
1998-04-30	3103	White	Loss	Hiroe Hiroyuki	2980	♂	\| go4go \|
1998-04-12	3103	White	Win	Kurahashi Masayuki	3138	♂	\| go4go \|
1998-04-02	3103	Black	Win	Yuki Satoshi	3262	♂	\| go4go \|
1997-08-07	3094	Black	Loss	Wang Ming Wan	3234	♂	\| go4go \|
1997-03-06	3090	Black	Loss	Iwata Tatsuaki	3085	♂	\| go4go \|
1997-02-17	3090	White	Loss	Hisajima Kunio	3095	♂	\| go4go \|
1997-01-16	3090	Black	Win	Kojima Takaho	2925	♂	\| go4go \|
1996-12-16	3090	White	Win	Cheng Ming Huang	2879	♂	\| go4go \|
1996-12-16	3090	Black	Win	Nakano Hironari	3200	♂	\| go4go \|
1995-03-09	3070	White	Loss	Ushinohama Satsuo	3052	♂	\| go4go \|
1995-02-09	3070	Black	Loss	Nakamura Hidehito	2982	♂	\| go4go \|
1994-11-24	3070	Black	Loss	Kurahashi Masayuki	3138	♂	\| go4go \|
1994-08-11	3073	White	Loss	Mimura Tomoyasu	3174	♂	\| go4go \|
1994-04-14	3077	Black	Loss	Lin Hai Fong	3290	♂	\| go4go \|
1994-03-17	3078	White	Win	Yamada Kimio	3224	♂	\| go4go \|
1994-02-17	3078	Black	Loss	Kataoka Satoshi	3277	♂	\| go4go \|
1994-01-27	3079	White	Win	Kataoka Satoshi	3278	♂	\| go4go \|
1993-12-13	3079	Black	Loss	Nakano Hironari	3150	♂	\| go4go \|
1993-10-02	3080	White	Loss	Komatsu Hideki	3205	♂	\| go4go \|
1993-07-01	3082	White	Loss	Yuki Satoshi	3204	♂	\| go4go \|
1993-04-29	3085	Black	Win	Ryu Si Hoon	3230	♂	\| go4go \|
1993-03-13	3085	Black	Win	Ryu Si Hoon	3228	♂	\| go4go \|
1993-03-11	3085	White	Loss	Kobayashi Satoru	3353	♂	\| go4go \|
1992-11-12	3085	White	Loss	Cho Chi Hun	3382	♂	\| go4go \|
1992-11-02	3085	Black	Loss	Nakaonoda Tomomi	3131	♂	\| go4go \|
1992-10-17	3085	White	Win	Michael Redmond	3075	♂	\| go4go \|
1992-10-15	3085	Black	Win	Cho Sun Jin	3190	♂	\| go4go \|
1992-07-30	3083	White	Loss	Sakata Eio	3098	♂	\| go4go \|
1992-05-21	3082	White	Loss	Wang Li Chen	3325	♂	\| go4go \|
1992-03-25	3082	White	Loss	Yuki Satoshi	3160	♂	\| go4go \|
1992-03-22	3082	White	Loss	Cho Sun Jin	3194	♂	\| go4go \|
1992-03-08	3083	White	Win	Aoki Shinichi	3009	♂	\| go4go \|
1991-12-16	3083	White	Loss	Iwata Hajime	2908	♂	\| go4go \|
1991-11-25	3084	White	Win	Imamura Yoshiaki	3023	♂	\| go4go \|
1991-11-07	3084	Black	Loss	Kobayashi Koichi	3367	♂	\| go4go \|
1991-10-24	3084	Black	Loss	Shiraishi Yutaka	3050	♂	\| go4go \|
1991-09-26	3085	Black	Win	Honda Kunihisa	3212	♂	\| go4go \|
1991-08-22	3086	White	Win	Yamada Wakio	2909	♂	\| go4go \|
1991-06-20	3087	Black	Loss	Yoda Norimoto	3282	♂	\| go4go \|
1991-05-16	3087	Black	Win	Kanashima Tadashi	3006	♂	\| go4go \|
1990-10-15	3089	Black	Loss	Aoki Shinichi	3023	♂	\| go4go \|
1990-04-30	3093	Black	Win	Yang Hui	3082	♀	\| go4go \|
1990-04-29	3093	Black	Loss	Liao Guiyong	3101	♂	\| go4go \|
1990-04-28	3094	White	Loss	Liao Guiyong	3101	♂	\| go4go \|
1989-02-26	3115	White	Loss	Kobayashi Satoru	3292	♂	\| go4go \|
1989-01-29	3116	White	Win	Fujisawa Hideyuki	3233	♂	\| go4go \|
1988-10-23	3119	White	Win	Shiraishi Yutaka	3068	♂	\| go4go \|
1988-04-17	3122	Black	Win	Nakamura Hidehito	3037	♂	\| go4go \|
1987-11-12	3122	White	Win	Fujisawa Hideyuki	3226	♂	\| go4go \|
1987-06-25	3120	Black	Loss	Lin Hai Fong	3326	♂	\| go4go \|
1987-06-03	3119	Black	Win	Yang Hui	3058	♀	\| go4go \|
1987-05-31	3119	Black	Loss	Yu Bin	3210	♂	\| go4go \|
1987-05-28	3119	White	Loss	Yu Bin	3210	♂	\| go4go \|
1987-05-26	3119	White	Win	Liang Weitang	3035	♂	\| go4go \|
1987-05-24	3119	Black	Win	Wang Jianhong	3020	♂	\| go4go \|
1987-05-22	3119	White	Win	Zhang Wendong	3192	♂	\| go4go \|
1987-05-20	3119	Black	Win	Zhang Wendong	3191	♂	\| go4go \|
1987-03-26	3115	Black	Win	Sonoda Yuichi	3227	♂	\| go4go \|
1986-08-17	3097	Black	Loss	Yoda Norimoto	3249	♂	\| go4go \|
1986-08-10	3096	Black	Win	Aragaki Takeshi	3013	♂	\| go4go \|
1986-07-24	3095	White	Loss	Wang Li Chen	3255	♂	\| go4go \|
1986-06-14	3092	White	Loss	Yamada Wakio	2961	♂	\| go4go \|
1986-05-21	3090	Black	Loss	Ishikura Noboru	3047	♂	\| go4go \|
1986-02-13	3087	Black	Loss	Ishida Yoshio	3266	♂	\| go4go \|
1984-09-01	3073	White	Loss	Ogata Masaki	3042	♂	\| go4go \|