Maruta Koji, Japan - Renju Rating

Maruta Koji (丸田光治)

Place: Tokyo, Japan

Rating: 2181.91, Std: 107.64, Rank: 452

First game: 1996-03-01, Last game: 2024-02-12

Top rating: 2229.30 (2003-11-16)

Games: 245, Wins: 96, Draws: 8, Losses: 141

Gy1: 8, Gy2: 22, Gy5: 53

18th All Japan Championship
Date 2024-02-12 Rating 2181.91
Round Color Result Opponent
1 White Loss Fujita Maiko 2381.59
2 Black Win Jang Eun Min 2308.57
3 White Win Ishitani Shin-ichi 2387.95
4 White Loss Park Woong-bae 2338.96
5 White Win Tanaka Shotaro 2304.68
6 White Loss Lee Ho June 2451.36
24 Kanto Renju Emperor Tournament Kanto area 1st round
Date 2023-11-19 Rating 2168.62
Round Color Result Opponent
3 White Loss Tanaka Shotaro 2303.83
4 Black Loss Yoshikawa Tomoki 2122.60
40 Kanto Championship
Date 2023-07-09 Rating 2160.85
Round Color Result Opponent
1 Black Loss Tanaka Shotaro 2307.92
4 White Win Suzuki Yoshitaka 1943.66
17th All Japan Championship
Date 2023-03-19 Rating 2155.27
Round Color Result Opponent
5 White Loss Matsuda Shoma 2341.18
6 White Loss Takazawa Nagayoshi 2276.56
23 Kanto Renju Emperor Tournament 2nd round
Date 2023-01-29 Rating 2156.03
Round Color Result Opponent
1 Black Loss Kamiya Shunsuke 2837.22
2 White Loss Fujita Maiko 2400.44
3 White Loss Yokoyama Shota 2443.81
4 White Loss Inoue Fumiya 2512.68
5 White Loss Okabe Hiroshi 2672.05
23 Renju Emperor Tournament Kanto area 1st round
Date 2022-11-06 Rating 2162.35
Round Color Result Opponent
2 White Win Kasahara Reiko 1670.20
3 White Win Tomobe Katsuhiro 2063.82
4 Black Win Tanaka Shotaro 2307.88
39 Kanto Championship
Date 2022-07-31 Rating 2157.59
Round Color Result Opponent
2 White Win Li Haoyang 1950.28
3 White Loss Ishitani Shin-ichi 2341.92
Special Tournament
Date 2022-04-10 Rating 2152.45
Round Color Result Opponent
1 White Loss Fujita Maiko 2394.53
2 White Loss Inoue Fumiya 2496.55
3 White Win Maruta Hiroki 2198.99
38 Kanto Championship
Date 2021-08-08 Rating 2134.49
Round Color Result Opponent
1 White Loss Inoue Fumiya 2490.75
2 White Win Kobayashi Nanako 1999.60
3 White Win Fujita Maiko 2338.23
16th All Japan Championship
Date 2021-03-28 Rating 2110.49
Round Color Result Opponent
1 White Loss Makino Mitsunori 2553.37
2 White Loss Ishitani Shin-ichi 2335.37
3 White Loss Yoshimoto Yuta 2223.87
4 White Loss Kawaai Hitoshi 1998.52
5 White Loss Suenaga Daiki 2256.30
6 Black Win Maruta Hiroki 2216.89
24th New Year(Mikami)Cup
Date 2021-01-29 Rating 2106.07
Round Color Result Opponent
S1 Black Win Maruta Hiroki 2215.68
S2 White Loss Makino Mitsunori 2547.23
S3 White Loss Okabe Hiroshi 2721.73
S4 Black Loss Ono Takayuki 2377.94
S5 White Loss Ishitani Shin-ichi 2351.09
21 Renju Emperor Tournament Kanto area 1st round
Date 2020-11-15 Rating 2098.84
Round Color Result Opponent
1 White Loss Kawaai Hitoshi 1999.32
2 White Loss Suenaga Daiki 2260.90
3 White Loss Shimura Hiroki 1981.63
4 White Win Kasahara Reiko 1682.86
37 Kanto Championship
Date 2020-08-10 Rating 2105.66
Round Color Result Opponent
3 White Win Okada Akihiro 1913.41
5 Black Loss Kato Yasuhiro 2066.52
6 Black Win Shimura Hiroki 1949.26
58 Meijinsen Qualification Kanto area 1st round
Date 2020-06-21 Rating 2109.28
Round Color Result Opponent
1 White Loss Fujita Maiko 2358.75
2 White Win Ito Midori 1780.32
20 Renju Emperor Tournament Kanto area 1st round
Date 2019-11-10 Rating 2127.02
Round Color Result Opponent
2 White Win Shibata Satoru 1813.45
3 White Loss Ishitani Shin-ichi 2364.46
4 White Win Tomobe Katsuhiro 2116.30
36 Kanto Championship
Date 2019-07-28 Rating 2130.41
Round Color Result Opponent
5 White Win Shibata Satoru 1809.37
6 White Loss Miyamoto Syunju 2281.15
57 Meijinsen Qualification East Japan area 2nd round
Date 2019-06-23 Rating 2132.16
Round Color Result Opponent
1 White Loss Kusajima Masato 2252.90
2 White Loss Koyama Jun 2598.65
3 Black Win Maruta Hiroki 2176.52
4 White Loss Ono Takayuki 2389.22
5 White Draw Inoue Fumiya 2416.24
57 Meijinsen Qualification Kanto area 1st round
Date 2019-05-12 Rating 2132.77
Round Color Result Opponent
1 White Win Inoue Fumiya 2416.94
2 White Win Maruta Hiroki 2179.23
3 White Loss Ono Takayuki 2391.99
4 Black Loss Mitsumori Masao 2308.55
13 Middle-dan Players Tournament
Date 2018-08-12 Rating 2107.85
Round Color Result Opponent
1 White Loss Kusajima Masato 2300.19
2 White Loss Miyamoto Syunju 2260.08
4 White Loss Kusajima Masato 2300.19
5 White Loss Miyamoto Syunju 2260.08
35 Kanto Championship
Date 2018-07-16 Rating 2108.64
Round Color Result Opponent
1 Black Loss Nakayama Tomoharu 2829.12
56 Meijinsen Qualification Kanto area 1st round
Date 2018-05-13 Rating 2110.62
Round Color Result Opponent
1 White Loss Sato Kiyotomi 2435.65
18 Kanto Renju Emperor Tournament 1st round
Date 2017-11-01 Rating 2119.46
Round Color Result Opponent
1 White Loss Okabe Hiroshi 2714.30
2 Black Win Koyama Akihiro 1958.18
3 White Loss Ishitani Shin-ichi 2387.34
4 White Loss Maruta Hiroki 2136.00
34 Kanto Championship
Date 2017-07-16 Rating 2129.21
Round Color Result Opponent
1 White Win Matsumoto Hiro 1723.36
2 Black Loss Ishitani Shin-ichi 2386.65
3 White Loss Ishima Ryoma 2157.39
12th All Japan Championship
Date 2017-03-26 Rating 2146.25
Round Color Result Opponent
1 White Draw Iio Yoshihiro 2540.53
2 White Loss Tachi Masaya 2524.58
3 Black Draw Nishida Toshio 2084.00
4 Black Loss Ono Takayuki 2361.14
5 White Win Sakamoto Suzan 2264.86
6 White Loss Fujita Yudai 2481.43
17 Kanto Renju Emperor Tournament 2nd round
Date 2016-12-10 Rating 2156.15
Round Color Result Opponent
1 Black Loss Nakayama Tomoharu 2777.72
2 White Loss Okabe Hiroshi 2709.27
3 Black Loss Sato Kiyotomi 2496.10
4 White Loss Ishitani Shin-ichi 2392.96
5 White Loss Nakamura Shigeru 2953.28
17 Kanto Renju Emperor Tournament 1st round
Date 2016-11-23 Rating 2158.50
Round Color Result Opponent
1 White Loss Okabe Hiroshi 2707.98
2 Black Win Demachi Koichiro 1927.09
3 White Loss Sato Kiyotomi 2497.22
4 White Win Maruta Hiroki 2112.35
ex1 Black Loss Iwano Fumio 2263.61
33 Kanto Championship
Date 2016-07-31 Rating 2172.82
Round Color Result Opponent
1 White Win Cho Enkun 1649.07
2 Black Loss Okabe Hiroshi 2716.83
3 White Win Kato Yasuhiro 2036.54
54 Meijinsen Qualification Kanto area 1st round
Date 2016-05-22 Rating 2179.07
Round Color Result Opponent
2 Black Loss Sato Kiyotomi 2515.56
3 White Win Iwano Fumio 2236.63
4 Black Loss Mitsumori Masao 2349.51
11th All Japan Championship
Date 2016-01-11 Rating 2188.15
Round Color Result Opponent
1 Black Loss Kamiya Shunsuke 2717.48
2 Black Draw Chigira Makoto 2024.28
3 White Loss Fujita Yudai 2441.71
5 White Win Kato Yasuhiro 2032.16
6 White Win Suzuki Rin 1919.12
Kanto Championship
Date 2015-07-20 Rating 2199.97
Round Color Result Opponent
1 White Loss Nakayama Tomoharu 2758.67
4 White Win Hashimoto Takuya 2007.21
5 Black Win Kato Yasuhiro 2048.81
6 White Win Fujikawa Masaki 2102.03
10th All Japan Championship
Date 2015-03-29 Rating 2196.71
Round Color Result Opponent
1 White Loss Kamiya Shunsuke 2670.91
2 White Win Fujikawa Masaki 2088.60
31th Kanto Championship
Date 2014-05-11 Rating 2177.13
Round Color Result Opponent
2 White Loss Tamura Kazumasa 2518.47
3 White Loss Tomobe Katsuhiro 2108.08
4 White Win Maruta Hiroki 2099.01
11th Middle-dan players Tournament
Date 2013-08-17 Rating 2170.74
Round Color Result Opponent
1 White Loss Kashihara Akihiko 2336.65
2 Black Loss Kato Yasuhiro 2129.42
3 White Win Maruta Hiroki 2132.88
4 White Win Kubo Izumi 2089.16
5 Black Win Miyagawa Junzo 2215.04
6 White Loss Nakayama Tomoharu 2646.97
51 Meijinsen Qualification East-Japan area 1st round
Date 2013-06-16 Rating 2165.83
Round Color Result Opponent
1 White Loss Isobe Taizan 2388.74
29th Kanto Championship
Date 2013-05-12 Rating 2163.91
Round Color Result Opponent
3 Black Loss Suzuki Rin 2045.40
4 White Win Nakamura Souta 2073.21
5 White Win Tada Ayako 2285.41
13 Kanto Renju Emperor Tournament 1st round
Date 2012-10-21 Rating 2144.26
Round Color Result Opponent
1 White Win Higuchi Fumiya 1602.48
2 Black Win Mitsumori Masao 2343.63
3 White Loss Tada Ayako 2301.54
4 White Loss Ishitani Shin-ichi 2356.45
50 Meijinsen Qualification East-Japan area 1st round
Date 2012-06-03 Rating 2126.27
Round Color Result Opponent
1 White Loss Mitsumori Masao 2361.04
2 White Loss Iwano Fumio 2129.97
3 White Loss Ono Takayuki 2427.02
4 Black Win Maruta Hiroki 2089.66
4th Tohoku Championship
Date 2012-04-08 Rating 2121.58
Round Color Result Opponent
1 Black Loss Nakamura Shigeru 2877.69
2 White Win Maruta Hiroki 2082.09
3 White Loss Kobayashi Koichi 2220.71
4 White Loss Kusajima Masato 2178.75
5 White Win Hirono Masakazu 1995.60
12 Kanto Renju Emperor Tournament 1st round
Date 2011-10-23 Rating 2107.94
Round Color Result Opponent
1 White Loss Kamiya Shunsuke 2438.70
49 Meijinsen Qualification East-Japan area 1st round
Date 2011-06-12 Rating 2099.05
Round Color Result Opponent
1 White Loss Kamiya Shunsuke 2415.96
28th Kanto Championship
Date 2011-05-22 Rating 2097.97
Round Color Result Opponent
1 White Loss Nakayama Tomoharu 2543.21
2 White Loss Arai Kazumi 2368.47
3 White Loss Suzuki Rin 1988.26
4 White Win Maruta Hiroki 2107.47
5 White Loss Fujikawa Masaki 2098.00
11 Kanto Renju Emperor Tournament 1st round
Date 2010-10-31 Rating 2107.50
Round Color Result Opponent
1 Black Win Kato Yasuhiro 2065.83
2 White Loss Okabe Hiroshi 2693.30
Meijinsen Qualification East-Japan area 1st round
Date 2010-06-27 Rating 2107.71
Round Color Result Opponent
1 White Loss Fukui Nobuhiro 2317.74
2 White Win Arai Kazumi 2314.44
3 White Loss Kudomi Takahiro 2394.71
4 Black Loss Tada Ayako 2191.14
27th Kanto Championship
Date 2010-05-23 Rating 2107.79
Round Color Result Opponent
1 Black Loss Nakamura Shigeru 2855.06
2 White Loss Tomobe Katsuhiro 2205.67
5th All Japan Championship
Date 2010-03-21 Rating 2110.58
Round Color Result Opponent
4 Black Win Kusajima Masato 2166.03
10 Kanto Renju Emperor Tournament 1st round
Date 2009-10-04 Rating 2107.19
Round Color Result Opponent
1 White Loss Tanji Hiroki 2050.81
2 White Loss Tomobe Katsuhiro 2150.97
3 White Win Tanizaki Ryusuke 2101.87
4 Black Win Fujikawa Masaki 2047.64
26th Kanto Championship
Date 2009-05-17 Rating 2106.08
Round Color Result Opponent
4 Black Win Matsuoka Teruo 1906.70
5 Black Win Kato Yasuhiro 2022.17
4th All Japan Championship
Date 2009-03-21 Rating 2101.68
Round Color Result Opponent
4 White Win Suzuki Rin 1950.13
5 Black Loss Tanizaki Ryusuke 2123.60
6 Black Loss Nagao Noriaki 2269.72
9th Kanto Renju Emperor Tournament, 1st round
Date 2008-10-26 Rating 2097.71
Round Color Result Opponent
1 Black Draw Tamada Yoichi 2266.23
2 Black Win Tada Ayako 2003.92
3 Black Loss Ono Takayuki 2407.32
4 White Loss Nakayama Tomoharu 2283.14
25th Kanto Championship
Date 2008-05-18 Rating 2089.88
Round Color Result Opponent
3 White Win Tanizaki Ryusuke 2118.49
4 Black Win Kobayashi Koichi 2096.19
5 Black Loss Kudomi Takahiro 2334.67
3rd All Japan Championship
Date 2008-03-23 Rating 2081.84
Round Color Result Opponent
1 White Loss Yamaguchi Yusui 2610.53
2 Black Loss Kato Yasuhiro 1983.62
3 White Loss Tadokoro Hosai 1924.42
4 Black Loss Fujikawa Masaki 2104.27
5 White Loss Nakayama Tomoharu 2228.80
6 Black Draw Tanizaki Ryusuke 2119.26
8 Kanto Renju Emperor Tournament 1st round
Date 2007-10-21 Rating 2095.83
Round Color Result Opponent
1 White Win Takeuchi Shunsuke 1935.41
2 White Win Yamashita Daisuke 1901.80
3 White Loss Ishitani Shin-ichi 2396.76
4 White Loss Nakayama Tomoharu 2200.61
5 Black Win Matsuoka Teruo 1870.43
45th Meijinsen Qualification East-Japan area 1st round
Date 2007-06-17 Rating 2103.90
Round Color Result Opponent
1 Black Win Tanizaki Ryusuke 2135.51
2 Black Loss Isobe Taizan 2431.12
3 White Loss Iwano Fumio 2162.49
4 White Win Hara Masao 2051.65
7th Kanto Renju Emperor Tournament - 1st round
Date 2006-10-15 Rating 2108.10
Round Color Result Opponent
1 Black Win Matsuoka Teruo 1854.54
2 White Loss Maruta Hiroki 2007.63
3 Black Win Fujikawa Masaki 2052.91
4 Black Loss Hara Masao 2090.27
5 Black Win Tanizaki Ryusuke 2125.95
Meijin-sen Qual, East Japan area 1st round
Date 2006-06-18 Rating 2110.55
Round Color Result Opponent
1 White Loss Koyama Jun 2336.41
2 Black Loss Arita Nobuyoshi 2366.48
3 White Loss Ono Takayuki 2299.00
4 Black Loss Hara Masao 2081.73
23rd Kanto Championship
Date 2006-05-21 Rating 2114.84
Round Color Result Opponent
1 White Win Iwano Fumio 2093.18
2 Black Loss Mitsumori Masao 2256.43
3 Black Win Tadokoro Hosai 1932.65
4 Black Loss Nakamura Shigeru 2844.08
5 White Loss Hara Masao 2081.22
1st All Japan Championship
Date 2006-03-26 Rating 2124.30
Round Color Result Opponent
4 White Win Tadokoro Hosai 1928.67
5 Black Win Kato Yasuhiro 2052.66
6 White Win Tomobe Katsuhiro 2088.54
6th Kanto Renju Emperor Tournament - 1st round
Date 2005-10-22 Rating 2131.69
Round Color Result Opponent
1 Black Win Iwano Fumio 2069.28
2 White Loss Itami Yoshiyuki 2180.19
3 Black Loss Tomobe Katsuhiro 2078.57
4 White Loss Arita Nobuyoshi 2344.47
43rd Meijinsen Qualification: East Japan 1st round
Date 2005-06-12 Rating 2150.05
Round Color Result Opponent
1 White Loss Koyama Jun 2277.12
2 White Win Tanno Yoshitaka 2091.86
3 White Loss Nagao Noriaki 2227.70
4 Black Loss Itami Yoshiyuki 2187.45
22nd Kanto Championship
Date 2005-05-22 Rating 2154.71
Round Color Result Opponent
1 White Win Ishizaki Masatoshi 1913.94
2 Black Loss Kawamura Norihiko 2690.00
3 Black Win Sasaki Miyu 1963.35
4 White Win Koyama Jun 2274.41
5 White Loss Ishitani Shin-ichi 2395.42
Japan WC Qualification tournament
Date 2005-04-03 Rating 2160.83
Round Color Result Opponent
4 White Win Tanizaki Ryusuke 2072.30
5 Black Win Kato Yasuhiro 2023.10
6 White Loss Kubo Izumi 2168.56
5th Kanto Renju Emperor Tournament - 1st round
Date 2004-11-28 Rating 2173.80
Round Color Result Opponent
1 Black Loss Sato Koichi 2010.31
2 White Win Sasaki Miyu 1953.79
3 Black Win Maruta Hiroki 1956.49
4 White Win Matsuoka Teruo 1885.80
42nd Meijinsen Qualification: East Japan 1st round
Date 2004-06-13 Rating 2193.28
Round Color Result Opponent
4 Black Loss Sano Hiroyuki 2163.25
4th Kanto Renju Emperor Tournament - 2nd round
Date 2003-11-30 Rating 2227.83
Round Color Result Opponent
White Win Nagao Noriaki 2280.01
White Win Mitsumori Masao 2265.27
Black Loss Isobe Taizan 2422.11
Black Loss Yamaguchi Yusui 2592.66
Black Loss Okabe Hiroshi 2556.95
4th Kanto Renju Emperor Tournament - 1st round
Date 2003-11-16 Rating 2229.30
Round Color Result Opponent
1 Black Win Yamauchi Yasuhiro 1804.39
2 White Win Nagao Noriaki 2283.59
3 White Draw Yamaguchi Yusui 2590.92
4 White Win Kubo Izumi 2217.61
41th Meijinsen Qualification: East Japan 1st round
Date 2003-06-08 Rating 2218.84
Round Color Result Opponent
1 White Loss Sano Hiroyuki 2208.10
2 White Win Mitsumori Masao 2291.40
3 White Loss Sato Kiyotomi 2297.39
4 Black Draw Kubo Izumi 2223.60
40th Meijinsen Qualification: East Japan 1st round
Date 2002-06-02 Rating 2206.87
Round Color Result Opponent
1 White Loss Isobe Taizan 2447.31
2 Black Loss Kato Yasuhiro 2097.18
3 White Win Ohno Syunzo 1993.92
4 Black Win Sato Takuma 2068.53
38th Meijinsen Qualification: East Japan 1st round
Date 2000-06-04 Rating 2208.90
Round Color Result Opponent
1 Black Win Sunagawa Shouki 2210.80
2 White Win Mitsumori Masao 2292.22
3 White Loss Kudomi Takahiro 2353.58
4 White Loss Isobe Taizan 2453.66
Kanto Championship
Date 2000-05-14 Rating 2207.51
Round Color Result Opponent
1 White Loss Nakamura Shigeru 2759.73
2 White Loss Hara Masao 2119.80
3 Black Win Tadokoro Hosai 1971.99
4 Black Win Kato Yasuhiro 2053.72
36 Suiseisen Tournament 1st round
Date 1996-03-01 Rating 2134.31
Round Color Result Opponent
4 White Win Tanuma Akira 1844.43