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Player Lookup:
10th Middle-dan Players Tournament
2015-07-19 -> 2015-07-20
Rating: 2169.28 -> 2145.27
Opponent Rating Round Result R. Change
Miyagawa Junzo 2083 1
loss
 -19.88
Hata Masayuki 2125 2
loss
 -17.99
Mano Yoshihisa 2131 4
win
 +14.28
Tachi Masaya 2356 5
loss
 -8.13
Kubo Izumi 1970 6
win
 +7.71
32nd Aomori Championship
2015-07-05
Rating: 2165.29 -> 2169.28
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: 2150.46 -> 2165.29
Opponent Rating Round Result R. Change
Miyamoto Syunju   1
win
 -
Ishitani Shin-ichi 2290 2
win
 +22.13
Okabe Hiroshi 2556 3
loss
 -2.82
Kusajima Masato 2182 4
win
 +17.47
Gakumazawa Hideaki 2014 5
loss
 -21.95
10th All Japan Championship
2015-03-28 -> 2015-03-29
Rating: 2115.18 -> 2150.46
Opponent Rating Round Result R. Change
Nakayama Tomoharu 2499 1
loss
 -3.16
Kon Akira 1941 2
win
 +8.60
Nagao Noriaki 2283 3
win
 +23.20
Tamada Yoichi 2360 4
loss
 -6.27
Ono Takayuki 2219 5
win
 +20.66
Sato Kiyotomi 2313 6
loss
 -7.75
Sendai Memorial Cup
2015-03-01
Rating: 2066.24 -> 2115.18
Opponent Rating Round Result R. Change
Kusajima Masato 2196 1
win
 +21.75
Miyamoto Syunju   2
win
 -
Miura Hitoshi 1811 3
win
 +6.01
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: 2034.56 -> 2066.24
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: 2085.86 -> 2034.56
Opponent Rating Round Result R. Change
Kubo Izumi 2043 1
win
 +14.05
Kato Yasuhiro 1995 2
loss
 -20.08
Isobe Taizan 2193 3
loss
 -11.20
Miyagawa Junzo 2009 4
loss
 -19.45
Miura Hitoshi 1817 5
win
 +5.64
Mitsumori Masao 2183 6
loss
 -11.60
Ishitani Shin-ichi 2258 7
loss
 -8.64
31th Kanto Championship
2014-05-11
Rating: 2091.7 -> 2085.86
Opponent Rating Round Result R. Change
Demachi Koichiro   1
win
 -
Okabe Hiroshi 2594 2
loss
 -1.67
Tada Ayako 2145 3
win
 +18.47
Ishitani Shin-ichi 2240 4
loss
 -9.55
Ono Takayuki 2155 5
loss
 -13.09
6th Tohoku Championship
2014-04-20
Rating: 2083.97 -> 2091.7
Opponent Rating Round Result R. Change
Sato Kiyotomi 2309 1
loss
 -6.86
Gakumazawa Hideaki 2022 2
loss
 -18.79
Miura Hitoshi 1817 3
win
 +5.67
Kusajima Masato 2219 4
win
 +21.95
Hirono Masakazu 1877 6
win
 +7.48
Okabe Hiroshi 2582 7
loss
 -1.72
9th All Japan Championship
2014-01-25 -> 2014-01-26
Rating: 2101.6 -> 2083.97
Opponent Rating Round Result R. Change
Fukui Nobuhiro 2413 1
loss
 -4.55
Kim Chang-Su 1986 2
loss
 -21.11
Miyagawa Junzo 2045 3
win
 +13.42
Kubo Izumi 1956 4
loss
 -22.34
Maruyama Yasushi 2211 5
win
 +20.91
Nakayama Tomoharu 2441 6
loss
 -3.96
11th Middle-dan players Tournament
2013-08-16 -> 2013-08-17
Rating: 2049.41 -> 2101.6
Opponent Rating Round Result R. Change
Tamada Yoichi 2340 1
loss
 -5.05
Kubo Izumi 1995 2
win
 +13.55
Mano Yoshihisa 2211 3
win
 +22.98
Nagao Noriaki 2274 4
draw
 +9.11
Nakayama Tomoharu 2434 5
loss
 -3.15
Maruta Hiroki 2022 6
win
 +14.75
51 Meijinsen Qualification East-Japan area 1st round
2013-06-16
Rating: 2080.93 -> 2049.41
Opponent Rating Round Result R. Change
Kudomi Takahiro 2320 1
loss
 -6.44
Mitsumori Masao 2207 2
loss
 -10.40
Ono Takayuki 2315 3
loss
 -6.58
Isobe Taizan 2269 4
loss
 -8.09
5th Tohoku Championship
2013-04-14
Rating: 2098.25 -> 2080.93
Opponent Rating Round Result R. Change
Nakamura Shigeru 2722 1
win
 +31.14
Maruta Hiroki 1964 2
loss
 -21.88
Kudomi Takahiro 2298 3
loss
 -7.68
Hirono Masakazu 1832 4
loss
 -26.29
Miura Hitoshi 1889 5
win
 +7.39
8th All Japan Championship
2013-03-23 -> 2013-03-24
Rating: 2104.53 -> 2098.25
Opponent Rating Round Result R. Change
Okabe Hiroshi 2511 1
loss
 -2.81
Fujikawa Masaki 1934 2
loss
 -23.27
Tomobe Katsuhiro 2085 3
win
 +15.14
Iwano Fumio 1950 4
draw
 -6.66
Nagao Noriaki 2274 5
loss
 -8.74
Tada Ayako 2194 6
win
 +20.06
16th Mikami Cup Tournament
2013-01-20
Rating: 2149.62 -> 2104.53
Opponent Rating Round Result R. Change
Isobe Taizan 2259 S1
loss
 -11.12
Mitsumori Masao 2220 S3
loss
 -12.79
Kudomi Takahiro 2280 S4
loss
 -10.24
Nagao Noriaki 2263 S5
loss
 -10.93
10th Middle-dan players Tournament
2012-08-25 -> 2012-08-26
Rating: 2115.84 -> 2149.62
Opponent Rating Round Result R. Change
Nagao Noriaki 2285 1
loss
 -8.74
Suzuki Junichiro 1935 2
win
 +8.38
Kato Yasuhiro 1889 3
win
 +6.84
Miyagawa Junzo 2150 4
win
 +17.61
Kashihara Akihiko 2207 5
win
 +20.11
Ono Takayuki 2242 6
loss
 -10.42
50 Meijinsen Qualification East-Japan area 2nd round
2012-07-08
Rating: 2138.62 -> 2115.84
Opponent Rating Round Result R. Change
Nakamura Shigeru 2723 1
loss
 -1.07
Kudomi Takahiro 2301 2
loss
 -9.00
Ono Takayuki 2211 3
loss
 -12.71
30th Aomori Championship
2012-07-01
Rating: 2106.84 -> 2138.62
Opponent Rating Round Result R. Change
Yamamoto Yuuichi   1
win
 -
Miura Hitoshi 1934 2
win
 +8.64
Tanno Yoshitaka 2000 3
win
 +11.24
Yamamoto Harue   4
win
 -
Kim Chang-Su 2015 5
win
 +11.89
50 Meijinsen Qualification East-Japan area 1st round
2012-06-03
Rating: 2049.49 -> 2106.84
Opponent Rating Round Result R. Change
Isobe Taizan 2313 1
win
 +26.26
Ono Takayuki 2207 2
win
 +22.83
Kudomi Takahiro 2279 3
loss
 -6.73
Iwano Fumio 2027 4
win
 +15.01
4th Tohoku Championship
2012-04-08
Rating: 2020.47 -> 2049.49
Opponent Rating Round Result R. Change
Sato Kiyotomi 2352 1
loss
 -4.13
Suzuki Junichiro 1947 2
win
 +12.67
Maruta Koji 1979 3
win
 +14.10
Hirono Masakazu 1827 4
win
 +7.94
Gakumazawa Hideaki 1986 5
draw
 -1.57
15th Mikami Cup Tournament
2012-03-11
Rating: 2027.53 -> 2020.47
Opponent Rating Round Result R. Change
Nakamura Shigeru 2708 S1
loss
 -0.62
Isobe Taizan 2272 S2
loss
 -6.29
Kudomi Takahiro 2259 S3
loss
 -6.67
Tadokoro Hosai 1821 S4
win
 +7.48
Oosumi Yuuki 2632 S5
loss
 -0.95
7th All Japan Championship
2012-01-28 -> 2012-01-29
Rating: 2008.81 -> 2027.53
Opponent Rating Round Result R. Change
Nakayama Tomoharu 2407 1
loss
 -2.93
Matsuoka Teruo 1810 2
win
 +7.73
Mitsumori Masao 2188 3
loss
 -8.38
Fujikawa Masaki 1985 4
win
 +14.95
Kamiya Shunsuke 2222 5
loss
 -7.24
Kato Yasuhiro 1978 6
win
 +14.59
12 Kanto Renju Emperor Tournament 1st round
2011-10-23
Rating: 1998.37 -> 2008.81
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
 +15.61
51 Suiseisen Tournament
2011-09-11
Rating: 1996.91 -> 1998.37
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
 -16.01
Suzuki Rin 1905 4
win
 +11.88
3rd Tohoku Championship
2011-02-27
Rating: 1976.72 -> 1996.91
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: 2016.99 -> 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 -> 2016.99
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: 2006.13 -> 2017
4th All Japan Championship
2009-03-20 -> 2009-03-21
Rating: 2014.75 -> 2006.13
Opponent Rating Round Result R. Change
Oosumi Yuuki 2467 1
loss
 -2.20
Kuramoto Hideharu 1927 2
win
 +12.08
Sato Kiyotomi 2372 3
loss
 -3.63
Maruta Hiroki 1966 4
loss
 -18.20
Kato Yasuhiro 1900 5
win
 +10.92
Miyoshi Takeo 2217 6
loss
 -7.59
1st Tohoku Championship
2009-02-22
Rating: 2024.36 -> 2014.75
Opponent Rating Round Result R. Change
Ishitani Shin-ichi 2312 1
loss
 -5.11
Sato Ryota   3
win
 -
Miura Hitoshi   4
win
 -
Sato Kiyotomi 2338 5
loss
 -4.50
12th Mikami Cup Tournament
2009-01-18
Rating: 2010.49 -> 2024.36
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: 2034.9 -> 2010.49
Opponent Rating Round Result R. Change
Kasai Takayuki   1
win
 -
Ishitani Shin-ichi 2258 2
loss
 -6.94
Watanabe Tatsuya 2002 3
loss
 -17.47
Tada Ayako   4
win
 -
7th 6-7 dan Tournament
2008-09-27 -> 2008-09-28
Rating: 2031.27 -> 2034.9
Opponent Rating Round Result R. Change
Tamura Kazumasa 2241 1
loss
 -7.35
Kato Yasuhiro 1920 2
win
 +11.08
Gakumazawa Hideaki 2170 3
win
 +22.07
Ono Takayuki 2237 4
loss
 -7.49
Tanno Yoshitaka 2060 5
loss
 -14.67
25th Kanto Championship
2008-05-18
Rating: 2049.04 -> 2031.27
Opponent Rating Round Result R. Change
Isobe Taizan 2382 1
loss
 -4.09
Fujikawa Masaki 2112 2
win
 +18.89
Kubo Izumi 1967 3
draw
 -3.68
Maruta Koji 2023 4
loss
 -17.19
Iwano Fumio 2144 5
loss
 -11.70
25th Kanto Shineisen Tournament
2008-04-13
Rating: 2043.16 -> 2049.04
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: 2050.07 -> 2043.16
Opponent Rating Round Result R. Change
Fujikawa Masaki 2065 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: 2052.03 -> 2050.07
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: 2052 = 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 2002 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: 0
Hover the mouse over the opponent's name to see the personal score of Koichi Kobayashi with this player.
Time: 0.042350769042969 sec.