Kato Yasuhiro (加藤康弘)

Place: Tokyo, Japan

Rating: 1987.62, Std: 171.37, Rank: 799

First game: 1996-03-01, Last game: 2026-01-11

Top rating: 2150.48 (2013-05-12)

Games: 447, Wins: 151, Draws: 20, Losses: 276

Gy1: 4, Gy2: 4, Gy5: 17

29th New Year (Mikami) Cup
Date	2026-01-11		Rating	1987.62
Round	Color	Result	Opponent
S1	Black	Loss	Inoue Fumiya	2573.49
S3	White	Loss	Fujita Maiko	2483.87
S4	White	Loss	Ishitani Shin-ichi	2351.07
S5	Black	Loss	Ono Takayuki	2386.24
18th All Japan Championship
Date	2024-02-12		Rating	2010.06
Round	Color	Result	Opponent
4	Black	Loss	Okabe Hiroshi	2727.65
5	Black	Loss	Toyo Koryu	2221.55
6	White	Loss	Tanaka Shotaro	2326.06
39 Kanto Championship
Date	2022-07-31		Rating	2051.98
Round	Color	Result	Opponent
4	White	Win	Kasahara Reiko	1733.92
5	Black	Win	Li Haoyang	2013.23
6	Black	Loss	Okabe Hiroshi	2701.68
22 Renju Emperor Tournament Kanto area 1st round
Date	2021-11-21		Rating	2055.15
Round	Color	Result	Opponent
1	White	Loss	Tanaka Shotaro	2292.59
2	White	Loss	Kato Shota	2053.41
3	Black	Loss	Tomobe Katsuhiro	2149.36
4	White	Win	Kasahara Reiko	1727.70
38 Kanto Championship
Date	2021-08-08		Rating	2067.46
Round	Color	Result	Opponent
4	White	Win	Okada Akihiro	1922.14
5	Black	Win	Li Haoyang	1979.30
6	White	Loss	Kamiya Shunsuke	2858.58
37 Kanto Championship
Date	2020-08-10		Rating	2083.07
Round	Color	Result	Opponent
1	White	Win	Kasahara Reiko	1730.10
2	White	Loss	Okabe Hiroshi	2735.02
3	White	Loss	Maruta Hiroki	2248.29
4	Black	Win	Shimura Hiroki	1967.62
5	White	Win	Maruta Koji	2121.27
6	White	Draw	Kawaai Hitoshi	2014.18
33 Kanto Championship
Date	2016-07-31		Rating	2046.49
Round	Color	Result	Opponent
1	Black	Loss	Koyama Jun	2626.28
2	Black	Win	Nakamura Souta	2278.17
3	Black	Loss	Maruta Koji	2181.44
4	Black	Win	Cho Enkun	1653.42
5	White	Loss	Ishitani Shin-ichi	2390.42
6	White	Loss	Fujikawa Masaki	2108.56
11th All Japan Championship
Date	2016-01-11		Rating	2041.40
Round	Color	Result	Opponent
1	Black	Loss	Sato Kiyotomi	2540.59
2	White	Loss	Kudomi Takahiro	2208.77
3	Black	Loss	Nishida Toshio	2084.91
4	White	Loss	Maruta Hiroki	2125.49
5	Black	Loss	Maruta Koji	2196.24
6	Black	Win	Chigira Makoto	2031.68
16 Kanto Renju Emperor Tournament 1st round
Date	2015-11-15		Rating	2045.99
Round	Color	Result	Opponent
1	Black	Loss	Okabe Hiroshi	2718.63
2	Black	Loss	Nakamura Souta	2299.53
3	White	Loss	Maruta Hiroki	2125.84
4	White	Win	Hashimoto Takuya	2017.15
Kanto Championship
Date	2015-07-20		Rating	2057.32
Round	Color	Result	Opponent
1	Black	Loss	Ishitani Shin-ichi	2401.56
2	Black	Loss	Iwano Fumio	2254.27
3	Black	Win	Kudomi Takahiro	2228.70
4	Black	Win	Tanizaki Ryusuke	2187.72
5	White	Loss	Maruta Koji	2207.63
6	Black	Loss	Maruta Hiroki	2107.44
53 Meijinsen Qualification East Japan area 1st round
Date	2015-05-10		Rating	2061.62
Round	Color	Result	Opponent
1	White	Loss	Nakamura Souta	2295.30
2	White	Loss	Ono Takayuki	2331.77
3	White	Loss	Tanizaki Ryusuke	2198.71
4	Black	Win	Chigira Makoto	2006.03
10th All Japan Championship
Date	2015-03-29		Rating	2065.43
Round	Color	Result	Opponent
1	White	Loss	Tachi Masaya	2483.54
2	Black	Win	Inoue Fumiya	2246.33
3	White	Loss	Koyama Jun	2608.42
4	Black	Loss	Nagao Noriaki	2281.68
5	White	Loss	Kubo Izumi	2087.28
6	Black	Loss	Kim Chang-Su	2088.68
15 Kanto Renju Emperor Tournament 1st round
Date	2014-10-26		Rating	2088.74
Round	Color	Result	Opponent
1	White	Win	Nakamura Souta	2229.52
2	White	Loss	Okabe Hiroshi	2749.14
3	White	Loss	Iwano Fumio	2259.17
4	Black	Win	Tomobe Katsuhiro	2093.39
1st Senior Masters Championship
Date	2014-08-29		Rating	2091.69
Round	Color	Result	Opponent
1	White	Loss	Isobe Taizan	2433.16
2	Black	Win	Kobayashi Koichi	2252.87
3	White	Loss	Kubo Izumi	2091.64
4	White	Win	Miura Hitoshi	1803.10
5	White	Loss	Miyagawa Junzo	2221.31
6	Black	Loss	Ishitani Shin-ichi	2454.02
7	Black	Loss	Mitsumori Masao	2340.00
52 Meijinsen Qualification East Japan area 1st round
Date	2014-06-08		Rating	2099.25
Round	Color	Result	Opponent
1	White	Loss	Kudomi Takahiro	2328.10
2	White	Loss	Iwano Fumio	2264.23
3	Black	Loss	Tamura Kazumasa	2507.52
4	White	Loss	Tada Ayako	2316.06
31th Kanto Championship
Date	2014-05-11		Rating	2104.32
Round	Color	Result	Opponent
2	Black	Loss	Iwano Fumio	2263.47
3	White	Win	Nakamura Souta	2155.69
4	Black	Loss	Sato Kiyotomi	2472.92
5	White	Win	Maruta Hiroki	2105.55
9th All Japan Championship
Date	2014-01-26		Rating	2115.38
Round	Color	Result	Opponent
1	Black	Win	Tamura Kazumasa	2524.10
2	Black	Loss	Kamiya Shunsuke	2584.82
3	Black	Loss	Mano Yoshihisa	2317.82
4	White	Loss	Sato Kiyotomi	2465.82
6	Black	Loss	Kon Akira	1991.19
11th Middle-dan players Tournament
Date	2013-08-17		Rating	2135.61
Round	Color	Result	Opponent
1	Black	Loss	Fukui Nobuhiro	2598.27
2	White	Win	Maruta Koji	2176.75
3	White	Loss	Kashihara Akihiko	2343.25
4	White	Win	Miyagawa Junzo	2221.04
5	Black	Loss	Mano Yoshihisa	2316.05
6	White	Loss	Kubo Izumi	2095.33
51 Meijinsen Qualification East-Japan area 2nd round
Date	2013-07-21		Rating	2138.79
Round	Color	Result	Opponent
1	White	Loss	Sato Kiyotomi	2469.92
2	White	Loss	Kudomi Takahiro	2392.47
3	Black	Loss	Mitsumori Masao	2334.59
4	White	Loss	Kamiya Shunsuke	2551.77
5	White	Loss	Tomobe Katsuhiro	2155.51
51 Meijinsen Qualification East-Japan area 1st round
Date	2013-06-16		Rating	2147.28
Round	Color	Result	Opponent
1	Black	Win	Mitsumori Masao	2335.74
2	White	Win	Isobe Taizan	2394.32
3	Black	Draw	Maruta Hiroki	2143.12
4	White	Loss	Kudomi Takahiro	2406.01
29th Kanto Championship
Date	2013-05-12		Rating	2150.48
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2867.64
2	White	Win	Iwano Fumio	2184.14
3	Black	Win	Tomobe Katsuhiro	2161.80
4	White	Loss	Kudomi Takahiro	2414.90
5	Black	Win	Mitsumori Masao	2337.14
8th All Japan Championship
Date	2013-03-24		Rating	2146.16
Round	Color	Result	Opponent
1	Black	Loss	Ishitani Shin-ichi	2377.98
2	White	Win	Miyagawa Junzo	2220.92
3	Black	Loss	Mitsumori Masao	2341.85
4	White	Loss	Tada Ayako	2290.95
5	Black	Win	Tomobe Katsuhiro	2164.69
6	Black	Loss	Kubo Izumi	2093.02
16th Mikami Cup Tournament
Date	2013-01-20		Rating	2142.00
Round	Color	Result	Opponent
A1	White	Win	Fujikawa Masaki	2031.75
A2	White	Win	Ozawa Tetsushi	2052.87
A3	Black	Win	Tomobe Katsuhiro	2179.05
A4	White	Win	Tanizaki Ryusuke	2132.54
A5	White	Win	Iwano Fumio	2157.22
13 Kanto Renju Emperor Tournament 1st round
Date	2012-10-21		Rating	2112.92
Round	Color	Result	Opponent
1	Black	Loss	Mitsumori Masao	2349.27
2	Black	Win	Higuchi Fumiya	1605.81
3	White	Loss	Isobe Taizan	2413.37
4	White	Loss	Sato Kiyotomi	2408.78
52 Suiseisen Tournament 1st round
Date	2012-09-23		Rating	2105.39
Round	Color	Result	Opponent
1	White	Loss	Tada Ayako	2303.91
2	Black	Win	Higuchi Fumiya	1607.16
3	Black	Loss	Tomobe Katsuhiro	2196.46
4	White	Loss	Iwano Fumio	2147.14
10th Middle-dan players Tournament
Date	2012-08-26		Rating	2100.98
Round	Color	Result	Opponent
1	Black	Win	Miyagawa Junzo	2215.09
2	Black	Loss	Ono Takayuki	2436.46
3	Black	Loss	Kobayashi Koichi	2235.05
4	White	Loss	Kubo Izumi	2092.45
5	White	Win	Suzuki Junichiro	1921.03
6	White	Win	Mano Yoshihisa	2255.67
29th Kanto Championship
Date	2012-05-13		Rating	2076.56
Round	Color	Result	Opponent
1	White	Loss	Mitsumori Masao	2368.33
2	White	Loss	Iwano Fumio	2133.37
3	Black	Loss	Matsuoka Teruo	2019.07
4	Black	Draw	Maruta Hiroki	2090.34
5	Black	Loss	Tada Ayako	2286.13
29th Kanto Shineisen Tournament
Date	2012-04-15		Rating	2074.31
Round	Color	Result	Opponent
1	White	Win	Kon Akira	2012.70
2	White	Win	Tomobe Katsuhiro	2205.70
3	White	Loss	Iwano Fumio	2128.80
4	Black	Loss	Maruta Hiroki	2087.88
5	Black	Loss	Matsuoka Teruo	2016.13
15th Mikami Cup Tournament
Date	2012-03-11		Rating	2073.02
Round	Color	Result	Opponent
A1	White	Loss	Tada Ayako	2278.13
A2	White	Win	Iwano Fumio	2123.27
A3	White	Loss	Fukui Nobuhiro	2495.84
A4	White	Loss	Kon Akira	2015.38
A5	White	Loss	Nakayama Tomoharu	2613.08
7th All Japan Championship
Date	2012-01-29		Rating	2073.19
Round	Color	Result	Opponent
1	White	Loss	Kudomi Takahiro	2427.63
2	White	Loss	Fukui Nobuhiro	2489.47
3	Black	Win	Matsuoka Teruo	2008.24
4	White	Loss	Kubo Izumi	2100.26
5	White	Win	Maruta Hiroki	2086.99
6	Black	Loss	Kobayashi Koichi	2211.41
12 Kanto Renju Emperor Tournament 1st round
Date	2011-10-23		Rating	2074.06
Round	Color	Result	Opponent
1	Black	Loss	Okabe Hiroshi	2708.25
2	Black	Loss	Tada Ayako	2255.87
3	Black	Win	Maruta Hiroki	2086.88
4	White	Loss	Kobayashi Koichi	2190.35
51 Suiseisen Tournament Final round
Date	2011-10-09		Rating	2074.35
Round	Color	Result	Opponent
1	Black	Loss	Maruta Hiroki	2089.96
2	White	Loss	Nakayama Tomoharu	2586.99
3	White	Loss	Kawano Takahisa	2360.56
4	White	Draw	Tada Ayako	2254.27
5	White	Loss	Kamiya Shunsuke	2441.53
51 Suiseisen Tournament
Date	2011-09-11		Rating	2076.66
Round	Color	Result	Opponent
1	White	Win	Suzuki Rin	1990.01
2	White	Win	Tada Ayako	2250.12
3	White	Loss	Kamiya Shunsuke	2436.19
4	White	Win	Maruta Hiroki	2096.57
28th Kanto Championship
Date	2011-05-22		Rating	2066.94
Round	Color	Result	Opponent
1	White	Draw	Oosumi Yuuki	2741.03
2	White	Loss	Tamada Yoichi	2509.20
3	White	Loss	Kamiya Shunsuke	2417.69
4	Black	Loss	Nakayama Tomoharu	2548.25
5	Black	Win	Maruta Hiroki	2112.02
28th Kanto Shineisen Tournament
Date	2011-04-17		Rating	2060.81
Round	Color	Result	Opponent
1	White	Loss	Iwano Fumio	2132.89
2	Black	Loss	Maruta Hiroki	2120.99
3	White	Loss	Arai Kazumi	2367.50
4	Black	Win	Kato Hiroaki	1735.50
5	White	Loss	Matsuoka Teruo	2002.06
3rd Tohoku Championship
Date	2011-02-27		Rating	2059.89
Round	Color	Result	Opponent
1	White	Loss	Tamada Yoichi	2515.81
2	Black	Loss	Miyagawa Sou	2122.73
3	Black	Win	Yamamoto Harue	1686.48
4	Black	Loss	Tanno Yoshitaka	2101.96
5	Black	Win	Sato Ryota	1478.35
14th Mikami Cup Tournament
Date	2011-01-30		Rating	2061.79
Round	Color	Result	Opponent
A1	White	Loss	Iwano Fumio	2133.07
A2	Black	Loss	Kise Katsumi	2522.63
A3	White	Loss	Ozawa Tetsushi	2094.63
A4	White	Win	Shimoyama Takuma	2226.22
11 Kanto Renju Emperor Tournament 1st round
Date	2010-10-31		Rating	2069.97
Round	Color	Result	Opponent
1	White	Loss	Nakayama Tomoharu	2521.50
1	White	Loss	Maruta Koji	2111.82
3	White	Win	Matsuoka Teruo	1979.76
4	White	Loss	Shimoyama Takuma	2242.03
50 Suiseisen Tournament
Date	2010-09-12		Rating	2076.59
Round	Color	Result	Opponent
1	White	Win	Fukui Nobuhiro	2335.67
2	White	Loss	Kamiya Shunsuke	2366.68
3	White	Win	Iwano Fumio	2118.66
4	White	Loss	Tada Ayako	2201.37
9th Middle-dan Players Tournament
Date	2010-08-29		Rating	2077.09
Round	Color	Result	Opponent
1	Black	Loss	Matsuo Toshiko	1959.51
2	White	Loss	Kubo Izumi	2110.98
3	Black	Win	Suzuki Junichiro	1919.29
4	Black	Loss	Ono Takayuki	2389.36
5	White	Loss	Ozawa Tetsushi	2088.41
6	White	Win	Yasumoto Yoshinobu	1980.39
Meijinsen Qualification East-Japan area 1st round
Date	2010-06-27		Rating	2086.99
Round	Color	Result	Opponent
1	White	Loss	Mitsumori Masao	2304.45
2	Black	Loss	Ono Takayuki	2393.06
3	White	Loss	Tada Ayako	2195.19
4	Black	Draw	Tanno Yoshitaka	2087.30
27th Kanto Championship
Date	2010-05-23		Rating	2095.28
Round	Color	Result	Opponent
1	White	Loss	Yamaguchi Yusui	2585.50
2	White	Draw	Tada Ayako	2191.57
3	Black	Win	Maruta Hiroki	2083.05
4	Black	Win	Tomobe Katsuhiro	2209.67
5	Black	Loss	Tamura Kazumasa	2512.53
27th Kanto Shineisen Tournament
Date	2010-04-04		Rating	2100.69
Round	Color	Result	Opponent
1	White	Loss	Matsuoka Teruo	1978.07
2	White	Win	Takagi Tomoyuki	2179.28
3	White	Win	Fukui Nobuhiro	2314.99
4	White	Loss	Arai Kazumi	2312.91
5	Black	Win	Maruta Hiroki	2084.52
43 Touryumonsen Tournament
Date	2010-03-28		Rating	2100.71
Round	Color	Result	Opponent
1	White	Win	Ozawa Tetsushi	2066.44
2	Black	Win	Kawasaki Nobuhiko	2180.84
3	White	Win	Kon Akira	1978.59
4	White	Loss	Tada Ayako	2180.12
5	Black	Loss	Fukui Nobuhiro	2315.28
5th All Japan Championship
Date	2010-03-21		Rating	2100.12
Round	Color	Result	Opponent
1	Black	Loss	Tamura Kazumasa	2514.50
2	Black	Win	Miyoshi Takeo	2112.37
3	White	Loss	Ono Takayuki	2387.55
4	Black	Loss	Iwano Fumio	2118.49
5	White	Loss	Miyagawa Sou	2133.37
6	White	Win	Fujikawa Masaki	2035.81
2nd Tohoku Championship
Date	2010-03-14		Rating	2099.73
Round	Color	Result	Opponent
1	Black	Win	Ishitani Shin-ichi	2397.72
2	Black	Win	Hirono Masakazu	1969.87
3	Black	Draw	Kusajima Masato	2170.69
4	Black	Win	Miyagawa Sou	2133.70
5	Black	Loss	Tamada Yoichi	2447.66
13th Mikami Cup Tournament
Date	2010-01-31		Rating	2089.42
Round	Color	Result	Opponent
A1	Black	Win	Iwano Fumio	2125.26
A2	Black	Win	Matsuoka Teruo	1967.20
A3	White	Loss	Tamada Yoichi	2436.46
A4	White	Loss	Fujikawa Masaki	2046.64
A5	White	Loss	Shimoyama Takuma	2265.06
41 Kyoto Classified Tournament
Date	2009-11-08		Rating	2069.42
Round	Color	Result	Opponent
A1	White	Loss	Tanaka Shingo	2204.21
A2	White	Loss	Tamada Yoichi	2407.77
A3	White	Win	Okuda Shingo	1941.57
A4	White	Win	Ozawa Tetsushi	2063.47
A5	White	Win	Saito Masashi	2081.76
A6	White	Loss	Suzuki Rin	1958.12
49 Suiseisen Tournament Final round
Date	2009-10-25		Rating	2065.72
Round	Color	Result	Opponent
1	White	Win	Tanji Hiroki	2052.92
2	Black	Loss	Shimoyama Takuma	2255.81
3	Black	Loss	Tashiro Yuichi	2288.66
4	White	Loss	Tamada Yoichi	2402.93
5	White	Win	Maruta Hiroki	2094.99
10 Kanto Renju Emperor Tournament 1st round
Date	2009-10-04		Rating	2059.16
Round	Color	Result	Opponent
1	White	Loss	Fukui Nobuhiro	2319.60
2	White	Loss	Tada Ayako	2143.67
3	Black	Win	Matsuoka Teruo	1930.71
4	White	Loss	Tanji Hiroki	2054.16
49 Suiseisen Tournament 1st round
Date	2009-09-06		Rating	2052.74
Round	Color	Result	Opponent
1	Black	Loss	Tanji Hiroki	2052.97
2	White	Win	Fujikawa Masaki	2052.90
3	White	Win	Takeuchi Shunsuke	1958.68
4	Black	Win	Kawasaki Nobuhiko	2135.93
8th Middle-dan Players Tournament
Date	2009-08-30		Rating	2050.36
Round	Color	Result	Opponent
1	Black	Win	Maruyama Yasushi	2263.28
2	Black	Loss	Miyagawa Junzo	2203.24
3	Black	Loss	Kobayashi Koichi	2132.59
4	White	Loss	Kubo Izumi	2115.12
5	White	Loss	Ono Takayuki	2404.03
6	White	Loss	Gakumazawa Hideaki	2139.71
47th Meijinsen Qualification East-Japan area 1st round
Date	2009-06-14		Rating	2031.13
Round	Color	Result	Opponent
1	White	Loss	Tamura Kazumasa	2514.83
2	White	Loss	Shimoyama Takuma	2242.16
4	White	Loss	Nagao Noriaki	2295.55
26th Kanto Championship
Date	2009-05-17		Rating	2025.58
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2858.11
2	White	Loss	Ono Takayuki	2410.24
3	White	Loss	Shimoyama Takuma	2238.78
4	Black	Win	Suzuki Rin	1947.38
5	White	Loss	Maruta Koji	2109.69
26th Kanto Shineisen Tournament
Date	2009-04-05		Rating	2018.78
Round	Color	Result	Opponent
1	White	Win	Tanji Hiroki	2035.42
2	White	Loss	Watanabe Tatsuya	2170.52
3	Black	Win	Kon Akira	1960.07
4	White	Loss	Fujikawa Masaki	2070.13
5	White	Loss	Shimoyama Takuma	2233.26
4th All Japan Championship
Date	2009-03-21		Rating	2016.36
Round	Color	Result	Opponent
1	Black	Loss	Ono Takayuki	2414.32
2	White	Loss	Tamada Yoichi	2298.14
3	White	Win	Suzuki Rin	1953.50
4	Black	Loss	Sakamoto Suzan	2294.71
5	White	Loss	Kobayashi Koichi	2118.43
6	Black	Win	Fujikawa Masaki	2069.53
42nd Touryumonsen Tournament
Date	2009-03-15		Rating	2015.26
Round	Color	Result	Opponent
1	White	Loss	Ozawa Tetsushi	2086.67
3	White	Loss	Kon Akira	1959.76
4	Black	Loss	Yoshikawa Hiromasa	2199.82
5	White	Loss	Tanaka Shingo	2202.38
6	White	Win	Sakaue Ryota	1675.94
7	White	Win	Saito Masashi	2053.84
12th Mikami Cup Tournament
Date	2009-01-18		Rating	2009.99
Round	Color	Result	Opponent
A1	White	Win	Fujikawa Masaki	2081.09
A2	White	Draw	Ozawa Tetsushi	2085.83
A3	White	Loss	Tanizaki Ryusuke	2131.49
A4	White	Loss	Maruta Hiroki	2082.87
A5	Black	Win	Kuramoto Hideharu	1902.29
9th Kanto Renju Emperor Tournament, 2nd round
Date	2008-11-16		Rating	2001.76
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2860.72
2	White	Loss	Nakayama Tomoharu	2289.95
3	Black	Loss	Kudomi Takahiro	2356.47
4	Black	Loss	Okabe Hiroshi	2684.40
5	Black	Loss	Sato Kiyotomi	2452.01
40th Kyoto Classified Tournament - group 1
Date	2008-11-09		Rating	2001.13
Round	Color	Result	Opponent
1	Black	Win	Nishimura Koichi	1871.64
2	Black	Loss	Ozawa Tetsushi	2083.13
3	Black	Loss	Kamei Shigeo	1757.82
5	White	Draw	Okuda Shingo	1947.27
6	White	Win	Kamatani Teruhiro	1581.80
9th Kanto Renju Emperor Tournament, 1st round
Date	2008-10-26		Rating	2001.22
Round	Color	Result	Opponent
1	Black	Win	Shinoda Masaki	1624.02
2	Black	Loss	Mitsumori Masao	2329.82
3	White	Win	Iwano Fumio	2168.41
4	Black	Win	Kuramoto Hideharu	1908.30
7th 6-7 dan Tournament
Date	2008-09-28		Rating	1998.08
Round	Color	Result	Opponent
1	White	Loss	Maruyama Yasushi	2233.88
2	Black	Loss	Kobayashi Koichi	2109.71
3	White	Loss	Tanno Yoshitaka	2119.30
4	Black	Loss	Gakumazawa Hideaki	2179.26
6	White	Win	Suzuki Junichiro	1884.01
25th Kanto Championship
Date	2008-05-18		Rating	1994.98
Round	Color	Result	Opponent
1	Black	Loss	Nakamura Shigeru	2860.01
2	Black	Win	Iwano Fumio	2184.49
3	Black	Win	Kudomi Takahiro	2337.89
4	White	Loss	Mitsumori Masao	2310.19
5	Black	Loss	Isobe Taizan	2426.03
25th Kanto Shineisen Tournament
Date	2008-04-13		Rating	1988.71
Round	Color	Result	Opponent
1	Black	Loss	Matsuoka Teruo	1879.16
2	White	Win	Takeuchi Yuuta	1854.01
3	Black	Loss	Fujikawa Masaki	2104.54
4	Black	Win	Harada Motochika	1790.75
5	Black	Loss	Watanabe Tatsuya	2156.90
3rd All Japan Championship
Date	2008-03-23		Rating	1986.61
Round	Color	Result	Opponent
1	Black	Loss	Ono Takayuki	2396.44
2	Black	Win	Maruta Koji	2085.00
3	White	Draw	Tanizaki Ryusuke	2122.29
4	Black	Loss	Sato Kiyotomi	2416.77
5	White	Loss	Fujikawa Masaki	2107.27
6	Black	Win	Tadokoro Hosai	1927.38
11th Mikami Cup Tournament, A-Class
Date	2008-01-20		Rating	1975.09
Round	Color	Result	Opponent
1	Black	Win	Matsuoka Teruo	1876.71
2	White	Loss	Iwano Fumio	2187.86
3	Black	Loss	Kuramoto Hideharu	1917.42
4	White	Loss	Tamada Yoichi	2190.94
5	White	Loss	Ozawa Tetsushi	2034.19
8 Kanto Renju Emperor Tournament 1st round
Date	2007-10-21		Rating	1969.45
Round	Color	Result	Opponent
1	Black	Loss	Suzuki Rin	1957.61
2	White	Win	Tanji Hiroki	1936.90
3	Black	Loss	Nakayama Tomoharu	2203.86
4	Black	Loss	Maruta Hiroki	2029.38
5	White	Loss	Watanabe Tatsuya	2140.38
6dan 7dan Tournament
Date	2007-10-08		Rating	1970.02
Round	Color	Result	Opponent
1	White	Loss	Ono Takayuki	2376.38
2	White	Win	Kubo Izumi	2081.34
3	White	Loss	Gakumazawa Hideaki	2181.17
4	White	Win	Tadokoro Hosai	1933.60
5	White	Loss	Miyagawa Junzo	2269.24
6	Black	Loss	Sato Kiyotomi	2402.09
47 Suiseisen Tournament 1st round
Date	2007-09-23		Rating	1969.76
Round	Color	Result	Opponent
1	White	Loss	Fujikawa Masaki	2113.68
2	Black	Loss	Watanabe Yoko	2058.92
3	Black	Win	Maruta Hiroki	2027.48
4	White	Win	Matsuoka Teruo	1873.83
24th Kanto Shineisen Tournament
Date	2007-04-15		Rating	1962.09
Round	Color	Result	Opponent
1	White	Loss	Matsuoka Teruo	1877.99
2	Black	Loss	Teshima Masakatsu	1953.43
3	Black	Win	Tanji Hiroki	1903.53
4	Black	Loss	Tamada Yoichi	2125.42
5	White	Loss	Ozawa Tetsushi	2015.55
2nd All Japan Championship (WC Qualification)
Date	2007-03-25		Rating	1964.40
Round	Color	Result	Opponent
1	Black	Loss	Miyoshi Takeo	2285.46
2	Black	Loss	Oosumi Yuuki	2508.21
3	Black	Loss	Maruta Hiroki	2025.17
4	Black	Loss	Tanizaki Ryusuke	2140.75
5	White	Loss	Ishitani Shin-ichi	2381.79
6	Black	Loss	Kuramoto Hideharu	1888.85
10th Mikami Cup Tournament, A-class
Date	2007-01-28		Rating	1980.19
Round	Color	Result	Opponent
1	White	Win	Watanabe Tatsuya	2124.04
2	Black	Win	Maruta Hiroki	2021.93
3	White	Loss	Iwano Fumio	2144.06
4	Black	Loss	Kobayashi Koichi	2099.36
5	White	Loss	Matsuoka Teruo	1875.54
7th Kanto Renju Emperor Tournament - 1st round
Date	2006-10-15		Rating	2009.86
Round	Color	Result	Opponent
1	Black	Win	Yamamoto Jyunko	1815.83
2	White	Win	Abiko Setsuko	2036.56
3	White	Draw	Isobe Taizan	2415.54
4	Black	Loss	Mitsumori Masao	2247.69
5	White	Loss	Kudomi Takahiro	2292.04
23rd Kanto Shinei Tournament
Date	2006-09-10		Rating	2016.52
Round	Color	Result	Opponent
1	White	Win	Kamemoto Daichi	2198.03
2	Black	Loss	Iwano Fumio	2111.21
3	White	Draw	Watanabe Yoko	2031.98
4	Black	Loss	Tanizaki Ryusuke	2127.47
5	White	Loss	Maruta Hiroki	2003.79
Meijin-sen Qual, East Japan area 1st round
Date	2006-06-18		Rating	2036.90
Round	Color	Result	Opponent
1	White	Loss	Mitsumori Masao	2253.69
2	Black	Loss	Nagao Noriaki	2235.33
3	Black	Win	Hara Masao	2084.25
4	Black	Draw	Kubo Izumi	2105.63
23rd Kanto Championship
Date	2006-05-21		Rating	2043.06
Round	Color	Result	Opponent
1	White	Loss	Mitsumori Masao	2259.08
2	Black	Draw	Iwano Fumio	2095.73
3	White	Loss	Tomobe Katsuhiro	2091.89
4	Black	Loss	Nagao Noriaki	2228.84
5	Black	Win	Fujikawa Masaki	2031.46
46th Suisei-sen tournament final round
Date	2006-04-16		Rating	2052.14
Round	Color	Result	Opponent
	White	Win	Itami Yoshiyuki	2158.31
	White	Draw	Nagao Noriaki	2222.05
	Black	Loss	Hara Masao	2078.34
	Black	Win	Koyama Jun	2329.62
	Black	Loss	Ono Takayuki	2305.23
1st All Japan Championship
Date	2006-03-26		Rating	2055.12
Round	Color	Result	Opponent
1	White	Win	Iio Yoshihiro	2494.75
2	Black	Loss	Oosumi Yuuki	2421.31
3	White	Loss	Mitsumori Masao	2261.53
4	Black	Draw	Kudomi Takahiro	2283.89
5	White	Loss	Maruta Koji	2126.92
6	White	Win	Nagao Noriaki	2222.05
46th Suisei-sen Tournament - 1st round
Date	2006-03-12		Rating	2055.25
Round	Color	Result	Opponent
1	Black	Loss	Kamemoto Daichi	2190.46
2	White	Win	Tanizaki Ryusuke	2111.76
3	Black	Win	Iwano Fumio	2080.01
4	White	Win	Watanabe Tatsuya	2133.31
9th Mikami Cup - A Class
Date	2006-01-29		Rating	2049.03
Round	Color	Result	Opponent
1	White	Loss	Watanabe Tatsuya	2134.22
2	White	Win	Matsuoka Teruo	1825.53
3	Black	Win	Oonuma Nobuhiro	1843.13
4	White	Win	Kamemoto Daichi	2185.47
5	White	Loss	Oosumi Yuuki	2415.66
6th Kanto Renju Emperor Tournament - 1st round
Date	2005-10-22		Rating	2027.24
Round	Color	Result	Opponent
1	Black	Loss	Teshima Masakatsu	1958.32
2	White	Loss	Yamauchi Takahiro	2035.21
3	White	Win	Yoda Tsuyoshi	1702.34
4	White	Loss	Tanizaki Ryusuke	2104.51
22nd Kanto Shineisen Tournament
Date	2005-09-11		Rating	2024.33
Round	Color	Result	Opponent
1	White	Loss	Tomobe Katsuhiro	2075.73
2	White	Win	Nakata Shinsuke	1960.99
3	White	Loss	Sasaki Miyu	1945.57
4	Black	Loss	Tanizaki Ryusuke	2099.50
5	Black	Win	Ishizaki Masatoshi	1897.48
Japan WC Qualification tournament
Date	2005-04-03		Rating	2025.38
Round	Color	Result	Opponent
1	Black	Win	Ishitani Shin-ichi	2387.64
2	White	Draw	Ono Takayuki	2296.11
3	Black	Loss	Miyagawa Junzo	2253.95
4	White	Loss	Oosumi Yuuki	2370.39
5	White	Loss	Maruta Koji	2163.30
6	Black	Win	Hara Masao	2054.44
45th Suisei-sen Tournament
Date	2005-03-20		Rating	2023.74
Round	Color	Result	Opponent
1	Black	Loss	Matsuoka Teruo	1875.62
2	White	Win	Tanizaki Ryusuke	2072.09
3	Black	Loss	Sasaki Miyu	1963.46
4	White	Loss	Tomobe Katsuhiro	2041.19
8th Mikami Cup - A Class
Date	2005-01-23		Rating	2024.60
Round	Color	Result	Opponent
1	Black	Win	Sasaki Miyu	1958.79
2	Black	Draw	Hara Masao	2060.40
3	White	Loss	Koyama Jun	2256.06
4	White	Win	Arita Nobuyoshi	2286.69
5	White	Loss	Sato Takuma	2178.92
5th Kanto Renju Emperor Tournament - 1st round
Date	2004-11-28		Rating	2020.62
Round	Color	Result	Opponent
1	White	Loss	Matsuoka Teruo	1888.06
2	White	Win	Itami Yoshiyuki	2164.48
3	White	Loss	Tomobe Katsuhiro	2031.36
4	Black	Loss	Watanabe Tatsuya	2083.51
21st Kanto Shineisen Tournament
Date	2004-09-12		Rating	2022.70
Round	Color	Result	Opponent
1	Black	Loss	Itami Yoshiyuki	2157.99
2	Black	Win	Maruta Hiroki	1954.63
3	White	Loss	Tashiro Yuichi	2288.51
4	White	Loss	Sasaki Miyu	1956.84
5	Black	Win	Iwano Fumio	2027.58
7th Mikami Cup - A class
Date	2004-01-25		Rating	2033.43
Round	Color	Result	Opponent
1	White	Win	Sasaki Miyu	1937.95
2	White	Loss	Arita Nobuyoshi	2237.08
3	Black	Loss	Sato Koichi	1998.40
4	Black	Win	Uchiyama Yasuhiko	1826.31
5	Black	Loss	Miyagawa Sou	2107.16
4th Kanto Renju Emperor Tournament - 1st round
Date	2003-11-16		Rating	2041.22
Round	Color	Result	Opponent
1	Black	Win	Oosaku Kazuyuki	1848.06
2	Black	Loss	Isobe Taizan	2423.46
3	White	Loss	Itami Yoshiyuki	2154.44
4	White	Win	Yamauchi Yasuhiro	1805.34
20th Kanto Shineisen Tournament
Date	2003-09-21		Rating	2047.39
Round	Color	Result	Opponent
1	Black	Win	Koyama Jun	2167.91
2	Black	Loss	Arita Nobuyoshi	2217.45
3	Black	Loss	Sato Kiyotomi	2307.78
4	Black	Loss	Tadokoro Hosai	1987.39
5	Black	Win	Sato Koichi	1966.77
40th Meijinsen Qualification: East Japan 1st round
Date	2002-06-02		Rating	2099.22
Round	Color	Result	Opponent
1	White	Draw	Okabe Hiroshi	2456.26
2	White	Win	Maruta Koji	2209.17
3	White	Loss	Isobe Taizan	2449.91
4	Black	Win	Arita Nobuyoshi	2157.06
Kanto Championship
Date	2000-05-14		Rating	2055.54
Round	Color	Result	Opponent
1	White	Win	Suzuki Naoya	2169.12
2	White	Loss	Sunagawa Shouki	2216.89
3	White	Loss	Nara Hideki	2567.08
4	White	Loss	Maruta Koji	2209.68
36 Suiseisen Tournament 1st round
Date	1996-03-01		Rating	1960.42
Round	Color	Result	Opponent
4	White	Loss	Aihara Hiroshi	2041.30