10th Middle-dan Players Tournament
2015-07-19 -> 2015-07-20
Rating: 2169.09 -> 2145.1
Opponent Rating Round Result R. Change
Miyagawa Junzo 2083 1
loss
-19.88
Hata Masayuki 2125 2
loss
-17.98
Mano Yoshihisa 2131 4
win
+14.27
Tachi Masaya 2356 5
loss
-8.13
Kubo Izumi 1969 6
win
+7.72
32nd Aomori Championship
2015-07-05
Rating: 2165.09 -> 2169.09
Opponent Rating Round Result R. Change
Yamamoto Harue   1
win
-
Miyamoto Syunju   2
win
-
Tanno Yoshitaka 2019 3
draw
-6.34
Gakumazawa Hideaki 2036 4
win
+10.33
Ooshina Seiichi   5
loss
-
7th Tohoku Championship
2015-04-12
Rating: 2150.27 -> 2165.09
Opponent Rating Round Result R. Change
Miyamoto Syunju   1
win
-
Ishitani Shin-ichi 2290 2
win
+22.13
Okabe Hiroshi 2555 3
loss
-2.84
Kusajima Masato 2182 4
win
+17.47
Gakumazawa Hideaki 2014 5
loss
-21.94
10th All Japan Championship
2015-03-28 -> 2015-03-29
Rating: 2115.06 -> 2150.27
Opponent Rating Round Result R. Change
Nakayama Tomoharu 2497 1
loss
-3.20
Kon Akira 1941 2
win
+8.61
Nagao Noriaki 2283 3
win
+23.18
Tamada Yoichi 2360 4
loss
-6.28
Ono Takayuki 2219 5
win
+20.66
Sato Kiyotomi 2312 6
loss
-7.77
Sendai Memorial Cup
2015-03-01
Rating: 2066.12 -> 2115.06
Opponent Rating Round Result R. Change
Kusajima Masato 2196 1
win
+21.75
Miyamoto Syunju   2
win
-
Miura Hitoshi 1811 3
win
+6.00
Gakumazawa Hideaki 2010 4
win
+13.47
Hirono Masakazu 1866 5
win
+7.71
Seiryu Masanori   6
win
-
33th Aomori Meijinsen
2014-11-09
Rating: 2034.44 -> 2066.12
Opponent Rating Round Result R. Change
Yamamoto Harue   1
win
-
Gakumazawa Hideaki 2044 2
win
+16.46
Koseki Kenshou   3
win
-
Tanno Yoshitaka 2017 4
win
+15.22
Shimoda Hiroyasu   5
win
-
1st Senior Masters Championship
2014-08-26 -> 2014-08-29
Rating: 2085.65 -> 2034.44
Opponent Rating Round Result R. Change
Kubo Izumi 2043 1
win
+14.06
Kato Yasuhiro 1995 2
loss
-20.07
Isobe Taizan 2194 3
loss
-11.13
Miyagawa Junzo 2009 4
loss
-19.44
Miura Hitoshi 1817 5
win
+5.63
Mitsumori Masao 2183 6
loss
-11.61
Ishitani Shin-ichi 2258 7
loss
-8.64
31th Kanto Championship
2014-05-11
Rating: 2091.46 -> 2085.65
Opponent Rating Round Result R. Change
Demachi Koichiro   1
win
-
Okabe Hiroshi 2593 2
loss
-1.68
Tada Ayako 2145 3
win
+18.46
Ishitani Shin-ichi 2240 4
loss
-9.55
Ono Takayuki 2156 5
loss
-13.05
6th Tohoku Championship
2014-04-20
Rating: 2083.73 -> 2091.46
Opponent Rating Round Result R. Change
Sato Kiyotomi 2308 1
loss
-6.87
Gakumazawa Hideaki 2022 2
loss
-18.78
Miura Hitoshi 1816 3
win
+5.67
Kusajima Masato 2219 4
win
+21.96
Hirono Masakazu 1877 6
win
+7.49
Okabe Hiroshi 2580 7
loss
-1.73
9th All Japan Championship
2014-01-25 -> 2014-01-26
Rating: 2101.5 -> 2083.73
Opponent Rating Round Result R. Change
Fukui Nobuhiro 2413 1
loss
-4.56
Kim Chang-Su 1986 2
loss
-21.11
Miyagawa Junzo 2044 3
win
+13.42
Kubo Izumi 1956 4
loss
-22.33
Maruyama Yasushi 2211 5
win
+20.91
Nakayama Tomoharu 2434 6
loss
-4.10
11th Middle-dan players Tournament
2013-08-16 -> 2013-08-17
Rating: 2049.47 -> 2101.5
Opponent Rating Round Result R. Change
Tamada Yoichi 2340 1
loss
-5.04
Kubo Izumi 1996 2
win
+13.56
Mano Yoshihisa 2211 3
win
+22.97
Nagao Noriaki 2273 4
draw
+9.10
Nakayama Tomoharu 2424 5
loss
-3.31
Maruta Hiroki 2022 6
win
+14.74
51 Meijinsen Qualification East-Japan area 1st round
2013-06-16
Rating: 2080.94 -> 2049.47
Opponent Rating Round Result R. Change
Kudomi Takahiro 2320 1
loss
-6.45
Mitsumori Masao 2207 2
loss
-10.43
Ono Takayuki 2315 3
loss
-6.59
Isobe Taizan 2271 4
loss
-8.01
5th Tohoku Championship
2013-04-14
Rating: 2098.31 -> 2080.94
Opponent Rating Round Result R. Change
Nakamura Shigeru 2719 1
win
+31.13
Maruta Hiroki 1964 2
loss
-21.89
Kudomi Takahiro 2298 3
loss
-7.68
Hirono Masakazu 1832 4
loss
-26.29
Miura Hitoshi 1888 5
win
+7.37
8th All Japan Championship
2013-03-23 -> 2013-03-24
Rating: 2104.58 -> 2098.31
Opponent Rating Round Result R. Change
Okabe Hiroshi 2513 1
loss
-2.78
Fujikawa Masaki 1934 2
loss
-23.27
Tomobe Katsuhiro 2085 3
win
+15.13
Iwano Fumio 1950 4
draw
-6.66
Nagao Noriaki 2274 5
loss
-8.74
Tada Ayako 2194 6
win
+20.05
16th Mikami Cup Tournament
2013-01-20
Rating: 2149.51 -> 2104.58
Opponent Rating Round Result R. Change
Isobe Taizan 2263 S1
loss
-10.95
Mitsumori Masao 2218 S3
loss
-12.84
Kudomi Takahiro 2281 S4
loss
-10.21
Nagao Noriaki 2263 S5
loss
-10.93
10th Middle-dan players Tournament
2012-08-25 -> 2012-08-26
Rating: 2115.7 -> 2149.51
Opponent Rating Round Result R. Change
Nagao Noriaki 2285 1
loss
-8.73
Suzuki Junichiro 1935 2
win
+8.38
Kato Yasuhiro 1889 3
win
+6.83
Miyagawa Junzo 2151 4
win
+17.65
Kashihara Akihiko 2206 5
win
+20.10
Ono Takayuki 2241 6
loss
-10.43
50 Meijinsen Qualification East-Japan area 2nd round
2012-07-08
Rating: 2138.51 -> 2115.7
Opponent Rating Round Result R. Change
Nakamura Shigeru 2716 1
loss
-1.11
Kudomi Takahiro 2302 2
loss
-8.98
Ono Takayuki 2210 3
loss
-12.72
30th Aomori Championship
2012-07-01
Rating: 2106.75 -> 2138.51
Opponent Rating Round Result R. Change
Yamamoto Yuuichi   1
win
-
Miura Hitoshi 1933 2
win
+8.62
Tanno Yoshitaka 2000 3
win
+11.25
Yamamoto Harue   4
win
-
Kim Chang-Su 2015 5
win
+11.89
50 Meijinsen Qualification East-Japan area 1st round
2012-06-03
Rating: 2049.18 -> 2106.75
Opponent Rating Round Result R. Change
Isobe Taizan 2319 1
win
+26.44
Ono Takayuki 2207 2
win
+22.82
Kudomi Takahiro 2279 3
loss
-6.70
Iwano Fumio 2027 4
win
+15.02
4th Tohoku Championship
2012-04-08
Rating: 2020.1 -> 2049.18
Opponent Rating Round Result R. Change
Sato Kiyotomi 2352 1
loss
-4.12
Suzuki Junichiro 1947 2
win
+12.69
Maruta Koji 1978 3
win
+14.11
Hirono Masakazu 1827 4
win
+7.95
Gakumazawa Hideaki 1986 5
draw
-1.55
15th Mikami Cup Tournament
2012-03-11
Rating: 2026.88 -> 2020.1
Opponent Rating Round Result R. Change
Nakamura Shigeru 2698 S1
loss
-0.66
Isobe Taizan 2281 S2
loss
-5.99
Kudomi Takahiro 2259 S3
loss
-6.66
Tadokoro Hosai 1821 S4
win
+7.50
Oosumi Yuuki 2629 S5
loss
-0.97
7th All Japan Championship
2012-01-28 -> 2012-01-29
Rating: 2008.78 -> 2026.88
Opponent Rating Round Result R. Change
Nakayama Tomoharu 2380 1
loss
-3.37
Matsuoka Teruo 1809 2
win
+7.73
Mitsumori Masao 2187 3
loss
-8.42
Fujikawa Masaki 1985 4
win
+14.95
Kamiya Shunsuke 2218 5
loss
-7.36
Kato Yasuhiro 1977 6
win
+14.57
12 Kanto Renju Emperor Tournament 1st round
2011-10-23
Rating: 1998.36 -> 2008.78
Opponent Rating Round Result R. Change
Mitsumori Masao 2151 1
loss
-9.37
Fukui Nobuhiro 2235 2
loss
-6.50
Suzuki Rin 1878 3
win
+10.70
Kato Yasuhiro 1989 4
win
+15.59
51 Suiseisen Tournament
2011-09-11
Rating: 1996.9 -> 1998.36
Opponent Rating Round Result R. Change
Tada Ayako 2020 1
loss
-14.91
Iwano Fumio 2097 2
win
+20.50
Maruta Hiroki 1996 3
loss
-16.02
Suzuki Rin 1905 4
win
+11.88
3rd Tohoku Championship
2011-02-27
Rating: 1976.72 -> 1996.9
Opponent Rating Round Result R. Change
Tamada Yoichi 2333 2
loss
-3.63
Hirono Masakazu 1839 3
win
+10.01
Ishitani Shin-ichi 2302 4
loss
-4.25
Tanno Yoshitaka 2021 5
win
+18.06
14th Mikami Cup Tournament
2011-01-30
Rating: 2016.98 -> 1976.72
Opponent Rating Round Result R. Change
Nakayama Tomoharu 2292 A1
loss
-5.43
Suzuki Rin 1852 A2
loss
-23.05
Kon Akira 1847 A3
win
+8.75
Fujikawa Masaki 1915 A4
loss
-20.54
Omata Mitsuo   A5
win
-
11 Kanto Renju Emperor Tournament 1st round
2010-10-31
Rating: 2071.09 -> 2016.98
Opponent Rating Round Result R. Change
Kamiya Shunsuke   1
loss
-
Shimoyama Takuma 2193 2
loss
-10.57
Tada Ayako 2014 3
loss
-18.56
Suzuki Rin 1850 4
loss
-24.98
5th All Japan Championship
2010-03-20 -> 2010-03-21
Rating: 2039.76 -> 2071.09
Opponent Rating Round Result R. Change
Okabe Hiroshi 2502 1
loss
-2.09
Kusajima Masato 2331 2
draw
+10.97
Mitsumori Masao 2263 3
win
+25.07
Miyoshi Takeo 2159 4
win
+21.30
Nagao Noriaki 2172 5
loss
-10.18
Nakayama Tomoharu 2089 6
loss
-13.75
2nd Tohoku Championship
2010-03-14
Rating: 2030.49 -> 2039.76
Opponent Rating Round Result R. Change
Sato Kiyotomi 2328 1
win
+27.12
Kusajima Masato 2381 2
loss
-3.75
Seiryu Masanori   3
loss
-
Gakumazawa Hideaki 2072 4
loss
-14.09
Sato Ryota   5
win
-
13th Mikami Cup Tournament
2010-01-31
Rating: 2048.46 -> 2030.49
Opponent Rating Round Result R. Change
Matsuoka Teruo 1718 A1
loss
-27.84
Kon Akira 1839 A2
win
+7.38
Tanji Hiroki 1927 A3
win
+10.66
Kimura Kenichiro   A4
win
-
Tamada Yoichi 2234 A5
loss
-8.17
8th Middle-dan Players Tournament
2009-08-29 -> 2009-08-30
Rating: 2017 -> 2048.46
Opponent Rating Round Result R. Change
Gakumazawa Hideaki 2153 1
loss
-10.04
Yamamoto Yasuhiro 2073 2
win
+18.57
Kato Yasuhiro 1921 3
win
+11.73
Ono Takayuki 2262 4
loss
-6.25
Miyagawa Junzo 2134 5
win
+21.19
Sato Kiyotomi 2368 6
loss
-3.74
RIF update 2009-05-15
2009-05-15
Rating: 2006.02 -> 2017
4th All Japan Championship
2009-03-20 -> 2009-03-21
Rating: 2014.65 -> 2006.02
Opponent Rating Round Result R. Change
Oosumi Yuuki 2467 1
loss
-2.20
Kuramoto Hideharu 1927 2
win
+12.08
Sato Kiyotomi 2371 3
loss
-3.63
Maruta Hiroki 1966 4
loss
-18.21
Kato Yasuhiro 1900 5
win
+10.92
Miyoshi Takeo 2217 6
loss
-7.59
1st Tohoku Championship
2009-02-22
Rating: 2024.27 -> 2014.65
Opponent Rating Round Result R. Change
Ishitani Shin-ichi 2312 1
loss
-5.12
Sato Ryota   3
win
-
Miura Hitoshi   4
win
-
Sato Kiyotomi 2338 5
loss
-4.50
12th Mikami Cup Tournament
2009-01-18
Rating: 2010.4 -> 2024.27
Opponent Rating Round Result R. Change
Matsuoka Teruo 1788 A1
win
+6.98
Iwano Fumio 2080 A2
win
+19.20
Gakumazawa Hideaki 2150 A3
loss
-9.90
Fujikawa Masaki 2016 A4
loss
-15.72
Maruta Hiroki 1951 A5
win
+13.30
9th Kanto Renju Emperor Tournament, 1st round
2008-10-26
Rating: 2034.82 -> 2010.4
Opponent Rating Round Result R. Change
Kasai Takayuki   1
win
-
Ishitani Shin-ichi 2257 2
loss
-6.95
Watanabe Tatsuya 2002 3
loss
-17.47
Tada Ayako   4
win
-
7th 6-7 dan Tournament
2008-09-27 -> 2008-09-28
Rating: 2031.21 -> 2034.82
Opponent Rating Round Result R. Change
Tamura Kazumasa 2241 1
loss
-7.36
Kato Yasuhiro 1920 2
win
+11.08
Gakumazawa Hideaki 2169 3
win
+22.07
Ono Takayuki 2236 4
loss
-7.51
Tanno Yoshitaka 2060 5
loss
-14.67
25th Kanto Championship
2008-05-18
Rating: 2049 -> 2031.21
Opponent Rating Round Result R. Change
Isobe Taizan 2382 1
loss
-4.10
Fujikawa Masaki 2112 2
win
+18.88
Kubo Izumi 1967 3
draw
-3.69
Maruta Koji 2023 4
loss
-17.19
Iwano Fumio 2144 5
loss
-11.70
25th Kanto Shineisen Tournament
2008-04-13
Rating: 2043.12 -> 2049
Opponent Rating Round Result R. Change
Tamada Yoichi 2055 1
loss
-15.45
Watanabe Yoko 1995 2
win
+13.81
Matsuoka Teruo 1866 3
win
+8.50
Watanabe Tatsuya 1991 4
win
+13.62
Fujikawa Masaki 2073 5
loss
-14.61
11th Mikami Cup Tournament, A-Class
2008-01-20
Rating: 2050.04 -> 2043.12
Opponent Rating Round Result R. Change
Fujikawa Masaki 2064 1
win
+16.69
Tamada Yoichi 2031 2
loss
-16.85
Matsuoka Teruo 1871 3
win
+8.42
Tanizaki Ryusuke 2068 4
loss
-15.16
Takeuchi Shunsuke   5
loss
-
10th Mikami Cup Tournament, A-class
2007-01-28
Rating: 2052 -> 2050.04
Opponent Rating Round Result R. Change
Tanizaki Ryusuke 2043 1
win
+15.59
Fujikawa Masaki 1893 2
loss
-22.82
Oonuma Nobuhiro   3
win
-
Kato Yasuhiro 1994 4
win
+13.37
Koyama Jun 2239 5
loss
-8.10
9th Mikami Cup - A Class
2006-01-29
Rating: 2051 = 2161 + (400 * (4 - 7)) / 11
Opponent Rating Round Result R. Change
Kamemoto Daichi 2112 1
win
-
Itami Yoshiyuki 2113 2
loss
-
Ozawa Tetsushi   3
win
-
Watanabe Tatsuya 2015 4
loss
-
Tomobe Katsuhiro 2001 5
loss
-
45th Suisei-sen Tournament
2005-03-20
Provisional: 2161 = 2218 + (400 * (3 - 4)) / 7
Opponent Rating Round Result R. Change
Ishizaki Masatoshi   1
loss
-
Nakata Shinsuke   2
win
-
Kamemoto Daichi   3
win
-
Koyama Jun 2200 4
loss
-
5th 6-7 dan Tournament
2004-12-04 -> 2004-12-05
Provisional: 2221 = 2221 + (400 * (3 - 3)) / 6
Opponent Rating Round Result R. Change
Arita Nobuyoshi 2182 1
loss
-
Tadokoro Hosai 2081 2
win
-
Miyagawa Junzo 2281 3
win
-
Sato Kiyotomi 2328 4
loss
-
Yamamoto Yasuhiro 2153 5
win
-
Kudomi Takahiro 2300 6
loss
-
Name: Koichi
Surname: Kobayashi
Rating: 2145
Top Rating: 2169

Country: Japan
City: Fukushima

Wins: 102
Losses: 109
Draws: 6
Gy1: 0
Gy2: 0
Gy5: 71
Hover the mouse over the opponent's name to see the personal score of Koichi Kobayashi with this player.
Time: 0.0170629024506 sec.