Kubo Izumi (久保出美)

Place: Kobe, Japan

Rating: 2129.59, Std: 268.42, Rank: -

First game: 1994-08-07, Last game: 2016-10-23

Top rating: 2231.13 (2003-03-22)

Games: 293, Wins: 96, Draws: 22, Losses: 175

Gy1: 0, Gy2: 0, Gy5: 0

12 Kansai Championship 1st round
Date	2016-10-23		Rating	2129.59
Round	Color	Result	Opponent
1	Black	Win	Sakamoto Suzan	2277.68
2	Black	Loss	Hasegawa Kazuto	2638.67
54 Meijinsen Qualification Kansai area 1st round
Date	2016-05-15		Rating	2117.96
Round	Color	Result	Opponent
1	White	Loss	Kawamura Norihiko	2613.34
2	Black	Win	Nishida Toshio	2084.74
3	Black	Loss	Sakamoto Suzan	2281.88
4	Black	Win	Ozawa Tetsushi	2035.21
11 Kansai Championship 1st round
Date	2015-10-25		Rating	2091.99
Round	Color	Result	Opponent
1	Black	Loss	Tachi Masaya	2474.32
2	White	Loss	Sakamoto Suzan	2283.69
3	White	Loss	Matsui Tsunehiro	2214.50
5	White	Draw	Kashihara Akihiko	2340.67
12th Middle-dan Players Tournament
Date	2015-07-20		Rating	2083.60
Round	Color	Result	Opponent
1	Black	Loss	Kusajima Masato	2264.24
3	Black	Draw	Kashihara Akihiko	2331.27
4	Black	Loss	Miyagawa Junzo	2246.72
5	White	Loss	Yoshida Hisao	2165.26
6	White	Loss	Kobayashi Koichi	2284.86
53 Meijinsen Qualification Kansai area 1st round
Date	2015-05-17		Rating	2084.18
Round	Color	Result	Opponent
1	Black	Loss	Kawamura Norihiko	2641.82
2	Black	Loss	Tachi Masaya	2481.26
3	Black	Win	Kon Akira	1977.76
4	Black	Loss	Hata Masayuki	2188.57
10th All Japan Championship
Date	2015-03-29		Rating	2085.34
Round	Color	Result	Opponent
1	Black	Loss	Nagao Noriaki	2279.05
2	Black	Win	Miyagawa Junzo	2243.90
3	Black	Loss	Mitsumori Masao	2325.27
4	Black	Loss	Mano Yoshihisa	2351.17
5	Black	Win	Kato Yasuhiro	2063.48
6	White	Loss	Ono Takayuki	2334.87
10 Kansai Championship 1st round
Date	2014-10-26		Rating	2082.78
Round	Color	Result	Opponent
1	White	Loss	Tachi Masaya	2464.24
2	Black	Loss	Sakamoto Suzan	2296.49
4	Black	Loss	Kon Akira	1992.16
5	Black	Loss	Miyagawa Junzo	2229.48
1st Senior Masters Championship
Date	2014-08-29		Rating	2089.90
Round	Color	Result	Opponent
1	Black	Loss	Kobayashi Koichi	2251.58
2	White	Loss	Isobe Taizan	2431.97
3	Black	Win	Kato Yasuhiro	2089.99
4	Black	Loss	Mitsumori Masao	2338.16
5	White	Loss	Ishitani Shin-ichi	2452.45
6	Black	Win	Miyagawa Junzo	2219.64
7	Black	Loss	Miura Hitoshi	1802.72
52 Meijinsen Qualification Kansai area 1st round
Date	2014-05-18		Rating	2106.77
Round	Color	Result	Opponent
1	Black	Loss	Tachi Masaya	2440.22
2	Black	Win	Kon Akira	1985.37
3	White	Win	Ozawa Tetsushi	2063.56
4	White	Draw	Kashihara Akihiko	2345.70
9th All Japan Championship
Date	2014-01-26		Rating	2113.41
Round	Color	Result	Opponent
1	White	Win	Kashihara Akihiko	2338.26
2	White	Loss	Tamura Kazumasa	2530.84
3	Black	Loss	Tada Ayako	2317.57
4	White	Win	Kobayashi Koichi	2232.42
5	White	Loss	Mano Yoshihisa	2316.18
6	Black	Win	Yamamoto Yasuhiro	2148.47
9th Kansai Championship 1st round
Date	2013-10-27		Rating	2104.20
Round	Color	Result	Opponent
1	Black	Win	Kon Akira	1981.17
2	Black	Loss	Sakamoto Suzan	2302.93
3	Black	Loss	Iio Yoshihiro	2530.70
5	Black	Win	Watanabe Nobuo	2028.89
11th Middle-dan players Tournament
Date	2013-08-17		Rating	2093.85
Round	Color	Result	Opponent
1	White	Loss	Mano Yoshihisa	2314.54
2	Black	Loss	Kobayashi Koichi	2226.96
3	Black	Loss	Miyagawa Junzo	2219.63
4	Black	Loss	Maruta Koji	2175.44
5	Black	Loss	Maruta Hiroki	2137.46
6	Black	Win	Kato Yasuhiro	2134.15
51 Meijinsen Qualification Kansai area 1st round
Date	2013-05-19		Rating	2091.99
Round	Color	Result	Opponent
1	Black	Win	Koiso Shigemasa	2159.01
2	Black	Loss	Hata Masayuki	2269.96
3	White	Loss	Iio Yoshihiro	2491.95
5	Black	Loss	Matsui Tsunehiro	2186.72
8th All Japan Championship
Date	2013-03-24		Rating	2091.63
Round	Color	Result	Opponent
1	White	Loss	Isobe Taizan	2404.86
2	Black	Loss	Mitsumori Masao	2340.39
3	Black	Loss	Miyagawa Junzo	2219.58
4	Black	Win	Tomobe Katsuhiro	2163.29
5	Black	Loss	Suzuki Rin	2050.36
6	White	Win	Kato Yasuhiro	2144.78
10th Middle-dan players Tournament
Date	2012-08-26		Rating	2091.19
Round	Color	Result	Opponent
1	Black	Loss	Kashihara Akihiko	2311.34
2	Black	Win	Mano Yoshihisa	2254.38
3	Black	Loss	Fukui Nobuhiro	2536.95
4	Black	Win	Kato Yasuhiro	2099.75
5	Black	Loss	Maruyama Yasushi	2255.71
6	White	Loss	Yamamoto Yasuhiro	2161.44
50 Meijinsen Qualification Kansai area 1st round
Date	2012-05-20		Rating	2088.14
Round	Color	Result	Opponent
1	White	Loss	Sakamoto Suzan	2339.99
2	Black	Loss	Hata Masayuki	2235.28
4	White	Loss	Nakajima Osamu	2239.20
5	Black	Loss	Koiso Shigemasa	2175.57
7th All Japan Championship
Date	2012-01-29		Rating	2099.12
Round	Color	Result	Opponent
1	Black	Loss	Tamada Yoichi	2488.08
2	Black	Win	Kon Akira	2019.51
3	Black	Loss	Ishitani Shin-ichi	2380.09
4	Black	Win	Kato Yasuhiro	2072.09
5	White	Loss	Kudomi Takahiro	2426.30
6	Black	Loss	Tada Ayako	2272.71
43 Kyoto Classified Tournament
Date	2011-11-13		Rating	2105.09
Round	Color	Result	Opponent
S5	Black	Loss	Iio Yoshihiro	2483.40
7th Kansai Championship 1st round
Date	2011-10-23		Rating	2106.95
Round	Color	Result	Opponent
1	Black	Loss	Kise Katsumi	2546.84
2	Black	Win	Kon Akira	2018.66
3	White	Loss	Takahashi Roi	2108.83
4	Black	Loss	Miyagawa Junzo	2221.78
5	White	Loss	Hata Masayuki	2232.97
49th Meijinsen Tournament
Date	2011-09-19		Rating	2113.23
Round	Color	Result	Opponent
1	Black	Loss	Okabe Hiroshi	2707.77
2	White	Win	Sakashita Shoichi	2146.79
3	White	Loss	Miyoshi Takeo	2161.09
4	Black	Loss	Yamaguchi Yusui	2654.55
5	White	Loss	Kashihara Akihiko	2259.28
6	White	Loss	Iio Yoshihiro	2494.70
7	White	Draw	Hasegawa Kazuto	2558.77
8	White	Win	Matsuura Hiroshi	2381.68
9	White	Loss	Nakayama Tomoharu	2580.79
49 Meijinsen Qualification Kansai area 2nd round
Date	2011-06-19		Rating	2121.71
Round	Color	Result	Opponent
1	Black	Loss	Iio Yoshihiro	2509.13
2	White	Win	Kise Katsumi	2543.64
3	White	Draw	Kashihara Akihiko	2255.28
49 Meijinsen Qualification Kansai area 1st round
Date	2011-05-15		Rating	2121.04
Round	Color	Result	Opponent
1	Black	Win	Kon Akira	2010.51
2	Black	Loss	Kise Katsumi	2540.59
3	White	Win	Yasumoto Yoshinobu	1949.65
4	Black	Win	Miyagawa Junzo	2212.36
5	Black	Loss	Kashihara Akihiko	2253.88
6th Kansai Championship 3rd round
Date	2011-01-09		Rating	2106.74
Round	Color	Result	Opponent
1	Black	Loss	Miyagawa Junzo	2224.96
2	White	Loss	Hata Masayuki	2187.44
3	Black	Loss	Oosumi Yuuki	2734.05
42 Kyoto Classified Tournament
Date	2010-11-14		Rating	2105.04
Round	Color	Result	Opponent
S1	White	Loss	Kudomi Takahiro	2413.35
S2	Black	Loss	Okabe Hiroshi	2696.66
S4	White	Loss	Miyagawa Junzo	2224.59
S5	White	Loss	Hasegawa Kazuto	2632.53
6th Kansai Championship 2nd round
Date	2010-10-31		Rating	2105.48
Round	Color	Result	Opponent
1	Black	Loss	Miyagawa Junzo	2224.61
2	White	Loss	Hata Masayuki	2175.33
3	Black	Win	Kon Akira	1992.14
9th Middle-dan Players Tournament
Date	2010-08-29		Rating	2110.23
Round	Color	Result	Opponent
1	Black	Loss	Kashihara Akihiko	2245.20
2	Black	Win	Kato Yasuhiro	2076.29
3	White	Win	Ono Takayuki	2388.52
4	Black	Win	Yasumoto Yoshinobu	1979.73
5	Black	Loss	Nagao Noriaki	2388.60
6	White	Draw	Ozawa Tetsushi	2087.59
Meijinsen Qualification Kansai area
Date	2010-05-16		Rating	2105.43
Round	Color	Result	Opponent
1	White	Loss	Koiso Shigemasa	2183.99
2	White	Loss	Ozawa Tetsushi	2077.27
3	Black	Win	Hata Masayuki	2143.45
4	Black	Loss	Takagawa Teiji	2190.30
5	Black	Win	Yasumoto Yoshinobu	1987.17
5th All Japan Championship
Date	2010-03-21		Rating	2105.48
Round	Color	Result	Opponent
5	Black	Loss	Kusajima Masato	2169.35
6	Black	Draw	Tadokoro Hosai	1898.29
40th Kyoto Classified - Special class
Date	2009-11-09		Rating	2115.51
Round	Color	Result	Opponent
1	White	Win	Kudomi Takahiro	2365.67
2	Black	Loss	Oosumi Yuuki	2630.63
3	White	Loss	Tamura Kazumasa	2509.80
4	White	Win	Okumura Toyohiko	2331.09
5	White	Loss	Iio Yoshihiro	2521.22
41 Kyoto Classified Tournament
Date	2009-11-08		Rating	2115.44
Round	Color	Result	Opponent
S1	White	Loss	Tamura Kazumasa	2509.83
S2	Black	Loss	Okumura Toyohiko	2331.20
S3	Black	Loss	Miyagawa Junzo	2200.16
S4	White	Loss	Kudomi Takahiro	2365.68
S5	Black	Win	Yasumoto Yoshinobu	1982.66
8th Middle-dan Players Tournament
Date	2009-08-30		Rating	2114.68
Round	Color	Result	Opponent
1	White	Loss	Ono Takayuki	2403.33
2	Black	Loss	Maruyama Yasushi	2262.58
3	Black	Loss	Yamamoto Yasuhiro	2148.24
4	Black	Win	Kato Yasuhiro	2049.74
5	Black	Win	Gakumazawa Hideaki	2139.17
6	White	Loss	Miyagawa Junzo	2202.72
47th Meijinsen Qualification Kansai area 2nd round
Date	2009-06-21		Rating	2116.60
Round	Color	Result	Opponent
1	Black	Loss	Oosumi Yuuki	2621.19
2	Black	Loss	Sakamoto Suzan	2307.84
3	Black	Win	Hata Masayuki	2182.90
47th Meijinsen Qualification Kansai area 1st round
Date	2009-05-10		Rating	2116.38
Round	Color	Result	Opponent
1	Black	Loss	Koiso Shigemasa	2166.39
2	Black	Win	Yasumoto Yoshinobu	2008.16
3	Black	Loss	Ozawa Tetsushi	2082.15
4	Black	Win	Miyagawa Junzo	2201.56
5	Black	Draw	Sakamoto Suzan	2303.53
7th 6-7 dan Tournament
Date	2008-09-28		Rating	2109.31
Round	Color	Result	Opponent
1	White	Loss	Gakumazawa Hideaki	2178.79
2	White	Win	Tanno Yoshitaka	2118.86
3	White	Draw	Maruyama Yasushi	2233.34
4	Black	Loss	Tamura Kazumasa	2471.23
5	Black	Win	Suzuki Junichiro	1883.37
6	Black	Loss	Ono Takayuki	2410.07
46th Meijinsen Qualification East-Japan area 1st round
Date	2008-06-15		Rating	2103.24
Round	Color	Result	Opponent
1	White	Draw	Fujikawa Masaki	2092.12
2	Black	Draw	Nakayama Tomoharu	2249.99
3	White	Loss	Kudomi Takahiro	2339.29
4	Black	Loss	Mitsumori Masao	2312.19
25th Kanto Championship
Date	2008-05-18		Rating	2102.40
Round	Color	Result	Opponent
1	White	Loss	Tamada Yoichi	2224.28
2	Black	Win	Maruta Hiroki	2038.18
3	White	Draw	Kobayashi Koichi	2098.79
4	White	Loss	Kudomi Takahiro	2337.40
5	White	Win	Tanizaki Ryusuke	2121.12
3rd All Japan Championship
Date	2008-03-23		Rating	2098.28
Round	Color	Result	Opponent
1	Black	Win	Ishitani Shin-ichi	2405.40
2	Black	Loss	Isobe Taizan	2436.46
3	Black	Loss	Tamada Yoichi	2207.53
4	Black	Win	Maruta Hiroki	2031.23
5	Black	Loss	Miyoshi Takeo	2277.02
6	Black	Loss	Nakayama Tomoharu	2231.49
6dan 7dan Tournament
Date	2007-10-08		Rating	2082.18
Round	Color	Result	Opponent
1	White	Loss	Tamura Kazumasa	2408.63
2	Black	Loss	Kato Yasuhiro	1969.66
3	White	Draw	Tadokoro Hosai	1933.24
4	Black	Loss	Yamamoto Yasuhiro	2090.91
5	White	Loss	Nagao Noriaki	2248.96
6	Black	Loss	Miyagawa Junzo	2269.43
World Championship 2007, BT
Date	2007-08-15		Rating	2089.02
Round	Color	Result	Opponent
1	Black	Loss	Yang Hsiao-Yu	2166.37
2	White	Draw	Saranchin Aleksandr	2092.10
3	Black	Loss	Serdyukov Egor	2500.11
4	Black	Win	Khramov Aleksey	1740.12
5	White	Loss	Poghosyan Albert	2388.99
6	Black	Draw	Pushkaryov Dmitry	2092.54
7	White	Win	Lillemets Rauni	2118.18
8	White	Loss	Eriksson Bjorn	2344.79
9	Black	Win	Khramov Bogdan	1764.50
45th Meijinsen Qualification East-Japan area 1st round
Date	2007-06-17		Rating	2096.57
Round	Color	Result	Opponent
1	Black	Win	Tomobe Katsuhiro	2044.98
2	Black	Loss	Kudomi Takahiro	2341.04
3	White	Draw	Tamura Kazumasa	2397.05
4	Black	Loss	Mitsumori Masao	2272.13
24th Kanto Championship Tournament
Date	2007-05-06		Rating	2100.49
Round	Color	Result	Opponent
1	Black	Win	Fujikawa Masaki	2105.12
2	Black	Loss	Okabe Hiroshi	2619.20
3	White	Win	Tomobe Katsuhiro	2050.92
4	Black	Loss	Ishitani Shin-ichi	2385.26
5	White	Loss	Tanizaki Ryusuke	2142.34
2nd All Japan Championship (WC Qualification)
Date	2007-03-25		Rating	2103.08
Round	Color	Result	Opponent
1	White	Loss	Ishitani Shin-ichi	2381.73
2	White	Win	Fujikawa Masaki	2102.11
3	White	Win	Tanizaki Ryusuke	2140.45
7th Kanto Renju Emperor Tournament - 1st round
Date	2006-10-15		Rating	2097.17
Round	Color	Result	Opponent
1	White	Loss	Tanizaki Ryusuke	2128.28
2	White	Loss	Fujikawa Masaki	2055.21
3	White	Win	Watanabe Tatsuya	2131.61
4	White	Loss	Abiko Setsuko	2036.50
5	Black	Win	Tanizaki Shingo	1870.81
Asian Championship 2006
Date	2006-08-15		Rating	2100.61
Round	Color	Result	Opponent
1	Black	Loss	Mitsumori Masao	2244.99
2	White	Win	Ishitani Shin-ichi	2363.17
3	White	Win	Chang Jae-Won	2018.37
4	White	Loss	Park Jeong Ho	2388.33
5	White	Loss	Pu Hsun-Fang	1962.05
6	Black	Draw	Kuramoto Hideharu	1877.59
7	White	Loss	Kashihara Akihiko	2297.06
8	White	Win	Yoon Seong-Won	1831.74
Meijin-sen Qual, East Japan area 1st round
Date	2006-06-18		Rating	2105.84
Round	Color	Result	Opponent
1	Black	Loss	Tomobe Katsuhiro	2087.26
2	Black	Win	Iwano Fumio	2099.73
3	White	Loss	Nagao Noriaki	2235.06
4	White	Draw	Kato Yasuhiro	2036.64
1st All Japan Championship
Date	2006-03-26		Rating	2117.65
Round	Color	Result	Opponent
1	White	Loss	Matsuura Hiroshi	2313.15
2	Black	Loss	Miyoshi Takeo	2275.09
3	White	Win	Hara Masao	2072.83
6th Kanto Renju Emperor Tournament - 1st round
Date	2005-10-22		Rating	2141.13
Round	Color	Result	Opponent
1	Black	Win	Kamemoto Daichi	2180.78
2	Black	Win	Teshima Masakatsu	1958.10
3	Black	Loss	Yamaguchi Yusui	2595.68
4	Black	Win	Tomobe Katsuhiro	2080.73
World Championship 2005, BT
Date	2005-08-05		Rating	2142.88
Round	Color	Result	Opponent
1	White	Draw	Serdyukov Egor	2382.65
2	Black	Loss	Ishitani Shin-ichi	2403.28
3	White	Loss	Chen Ko-Han	2505.31
4	Black	Loss	Oll Aivo	2555.69
5	White	Win	Rachitskaya Viktoria	2118.51
6	Black	Loss	Ono Takayuki	2291.31
7	Black	Win	Omata Mitsuo	1712.42
8	Black	Loss	Kudomi Takahiro	2295.76
9	White	Loss	Lillemets Rauni	2144.85
43rd Meijinsen Qualification: East Japan 1st round
Date	2005-06-12		Rating	2147.84
Round	Color	Result	Opponent
1	White	Loss	Itami Yoshiyuki	2189.60
2	Black	Loss	Nagao Noriaki	2230.02
3	White	Loss	Sasaki Miyu	1962.38
4	Black	Loss	Tanno Yoshitaka	2094.03
Japan WC Qualification tournament
Date	2005-04-03		Rating	2170.95
Round	Color	Result	Opponent
1	Black	Win	Yamaguchi Yusui	2557.23
2	White	Loss	Sato Kiyotomi	2390.62
3	White	Loss	Ishitani Shin-ichi	2387.52
4	Black	Loss	Miyagawa Sou	2129.06
5	White	Win	Nagao Noriaki	2232.42
6	Black	Win	Maruta Koji	2163.11
5th 6-7 dan Tournament
Date	2004-12-05		Rating	2197.36
Round	Color	Result	Opponent
1	White	Win	Yamamoto Yasuhiro	2046.54
2	Black	Win	Arita Nobuyoshi	2281.36
3	Black	Draw	Kudomi Takahiro	2331.89
4	Black	Win	Hiwatashi Kikuma	1949.39
5	White	Loss	Sato Kiyotomi	2368.62
6	Black	Win	Tadokoro Hosai	1926.99
42nd Meijinsen Qualification: East Japan 1st round
Date	2004-06-13		Rating	2212.96
Round	Color	Result	Opponent
1	Black	Win	Mitsumori Masao	2248.22
2	White	Win	Ohno Syunzo	2070.61
3	White	Loss	Kawamura Norihiko	2721.39
4	Black	Loss	Sato Kiyotomi	2353.21
4th Kanto Renju Emperor Tournament - 1st round
Date	2003-11-16		Rating	2220.09
Round	Color	Result	Opponent
1	Black	Win	Tanizaki Ryusuke	2032.93
2	Black	Loss	Yamaguchi Yusui	2593.64
3	Black	Win	Uchiyama Yasuhiko	1825.52
4	Black	Loss	Maruta Koji	2231.61
World Championship 2003, BT
Date	2003-08-08		Rating	2226.15
Round	Color	Result	Opponent
1	White	Win	Kudomi Takahiro	2345.96
2	Black	Loss	Chang Yi-Feng	2463.62
3	Black	Win	Nagao Noriaki	2307.48
4	White	Loss	Oll Aivo	2380.20
5	Black	Win	Ishitani Shin-ichi	2384.57
6	Black	Loss	Poghosyan Albert	2338.38
8	White	Loss	Eibatov Nizami	2336.09
8	Black	Win	Dzainukov Eldar	2200.56
World Championship 2003, QT
Date	2003-07-31		Rating	2225.51
Round	Color	Result	Opponent
1	White	Loss	Karlsson Stefan	2560.07
3	White	Loss	Ilu Timo	2449.84
4	White	Loss	Gardström Petter	2417.46
5	Black	Loss	Lu Wei-Yuan	2209.48
6	Black	Win	Dzainukov Eldar	2199.78
7	White	Loss	Karasyov Maxim	2491.18
41th Meijinsen Qualification: East Japan 1st round
Date	2003-06-08		Rating	2226.12
Round	Color	Result	Opponent
1	White	Loss	Sato Kiyotomi	2299.58
2	Black	Win	Ono Takayuki	2191.24
3	White	Loss	Sano Hiroyuki	2210.69
4	White	Draw	Maruta Koji	2221.13
Japan WC Qualification 2003
Date	2003-03-22		Rating	2231.13
Round	Color	Result	Opponent
1	Black	Win	Fujio Katsutoshi	1976.41
2	Black	Loss	Nara Hideki	2590.69
3	Black	Draw	Sakurai Yasuo	2083.33
4	Black	Win	Tashiro Yuichi	2258.90
5	Black	Win	Iio Yoshihiro	2461.69
40th Meijinsen Qualification: East Japan 1st round
Date	2002-06-02		Rating	2210.75
Round	Color	Result	Opponent
1	White	Loss	Mitsumori Masao	2306.59
2	Black	Win	Tadokoro Hosai	1994.51
3	Black	Win	Sato Koichi	1923.66
4	White	Loss	Isobe Taizan	2449.91
38th Meijinsen Qualification: East Japan 1st round
Date	2000-06-04		Rating	2174.87
Round	Color	Result	Opponent
1	White	Win	Mitsumori Masao	2295.05
2	White	Loss	Suzuki Naoya	2172.66
3	White	Loss	Kusajima Masato	2356.61
4	Black	Win	Adachi Yasuhiro	1996.64
Kanto Championship
Date	2000-05-14		Rating	2173.45
Round	Color	Result	Opponent
1	Black	Win	Omata Mitsuo	1872.46
2	White	Loss	Nakamura Shigeru	2763.90
3	Black	Win	Horiuchi Kazuki	1758.66
4	White	Loss	Nara Hideki	2567.42
Kyoto - 1200
Date	1994-08-07		Rating	2005.18
Round	Color	Result	Opponent
	White	Loss	Uchimoto Yoshinori	2057.67