Koyama Jun, Japan - Renju Rating

JPN Koyama Jun (小山純)

Place: Tokyo, Japan

Rating: 2654.34, Std: 122.34, Rank: 40

First game: 2003-09-21, Last game: 2025-12-07

Top rating: 2656.34 (2025-10-19)

Games: 360, Wins: 207, Draws: 36, Losses: 117

Gy1: 11, Gy2: 11, Gy5: 15

26 Kanto Renju Emperor Tournament Final round
Date 2025-12-07 Rating 2654.34
Round Color Result Opponent
1 Black Loss JPN Inoue Fumiya 2580.14
2 Black Loss JPN Kamiya Shunsuke 2863.56
3 Black Win JPN Okabe Hiroshi 2757.49
4 White Win JPN Yoshikawa Tomoki 2473.95
5 Black Loss JPN Fujita Maiko 2496.42
6 White Win JPN Maruta Hiroki 2255.91
7 Black Win JPN Ono Takayuki 2395.10
26 Kanto Renju Emperor Tournament Qualification round
Date 2025-10-19 Rating 2656.34
Round Color Result Opponent
1 White Win JPN Ishitani Shin-ichi 2363.56
2 Black Win JPN Kawamura Norihiko 2536.87
3 White Win JPN Inoue Fumiya 2574.59
4 White Draw JPN Fujita Maiko 2500.29
60th Meijinsen Qualification Kanto area 1st round
Date 2022-05-22 Rating 2615.22
Round Color Result Opponent
1 White Win JPN Tomobe Katsuhiro 2142.18
2 White Win JPN Maruta Hiroki 2213.58
3 Black Draw JPN Fujita Maiko 2426.09
4 Black Draw JPN Yokoyama Shota 2457.12
57 Meijinsen Tournament
Date 2019-09-16 Rating 2616.55
Round Color Result Opponent
1 Black Draw JPN Inoue Fumiya 2423.49
2 White Loss JPN Kamiya Shunsuke 2829.35
3 Black Loss JPN Kawamura Norihiko 2676.30
4 White Win JPN Matsuura Hiroshi 2365.81
5 Black Loss JPN Nakayama Tomoharu 2830.89
6 White Loss JPN Kawano Takahisa 2465.15
7 White Loss JPN Hasegawa Kazuto 2617.35
8 White Win JPN Okabe Hiroshi 2729.85
9 Black Win JPN Ishitani Shin-ichi 2388.03
World Championship 2019, AT
Date 2019-08-10 Rating 2621.80
Round Color Result Opponent
1 Black Draw CHN Mei Fan 2709.31
2 Black Win EST Oll Aivo 2747.95
3 Black Win JPN Inoue Fumiya 2427.54
4 Black Win RRA Epifanov Dmitry 2676.53
5 Black Loss JPN Nakayama Tomoharu 2825.23
6 Black Win JPN Okabe Hiroshi 2725.15
7 Black Draw JPN Kamiya Shunsuke 2826.24
8 Black Draw SWE Gardström Petter 2705.47
9 White Loss RRA Fedotov Denis 2685.26
10 White Loss CHN Cao Dong 2786.19
11 Black Loss RRA Sushkov Vladimir 2844.41
World Championship 2019, QT
Date 2019-08-02 Rating 2621.60
Round Color Result Opponent
1 White Win SWE Sandstrom Richard 2378.48
2 White Win CHN Li Xiaoqing 2662.12
3 Black Loss EST Mesila Villem 2669.47
4 Black Win MAC Wai Chan Keong 2789.97
5 Black Draw RRA Fedotov Denis 2687.93
6 White Loss SWE Gardström Petter 2707.12
7 White Win EST Topkin Georg-Romet 2631.34
57 Meijinsen Qualification East Japan area 2nd round
Date 2019-06-23 Rating 2614.89
Round Color Result Opponent
1 Black Win JPN Maruta Hiroki 2191.59
2 Black Win JPN Maruta Koji 2146.98
3 White Win JPN Inoue Fumiya 2430.94
4 Black Win JPN Kusajima Masato 2261.70
5 White Win JPN Ono Takayuki 2404.14
14th All Japan Championship
Date 2019-03-31 Rating 2593.86
Round Color Result Opponent
1 White Loss JPN Fujita Maiko 2293.59
2 Black Win JPN Chigira Makoto 2094.86
3 White Draw JPN Inoue Fumiya 2431.54
4 White Win JPN Ono Takayuki 2402.49
5 Black Loss JPN Nakamura Shigeru 2999.67
6 Black Loss JPN Okabe Hiroshi 2704.29
19 Renju Emperor Tournament Kanto area 1st round
Date 2018-10-21 Rating 2574.98
Round Color Result Opponent
1 Black Win JPN Demachi Koichiro 1928.13
2 White Loss JPN Iwano Fumio 2253.35
3 White Draw JPN Ishitani Shin-ichi 2430.33
4 White Loss JPN Inoue Fumiya 2410.03
56 Meijinsen Tournament
Date 2018-09-17 Rating 2577.64
Round Color Result Opponent
1 Black Win JPN Kuga Akio 2430.85
2 Black Loss JPN Matsuura Hiroshi 2357.68
3 White Win JPN Okabe Hiroshi 2705.82
5 Black Win JPN Kawamura Norihiko 2663.67
6 Black Loss JPN Ishitani Shin-ichi 2433.06
7 Black Loss JPN Kamiya Shunsuke 2803.82
8 White Loss JPN Nakamura Shigeru 3004.14
9 White Win JPN Hasegawa Kazuto 2582.55
35 Kanto Championship
Date 2018-07-16 Rating 2580.21
Round Color Result Opponent
4 Black Loss JPN Sato Kiyotomi 2446.68
5 White Win JPN Iwano Fumio 2254.05
6 White Win JPN Fujikawa Masaki 2107.01
56 Meijinsen Qualification East Japan area 2nd round
Date 2018-06-25 Rating 2582.21
Round Color Result Opponent
1 White Win JPN Kusajima Masato 2309.86
2 Black Win JPN Sato Kiyotomi 2447.32
3 White Loss JPN Ono Takayuki 2395.59
56 Meijinsen Qualification Kanto area 1st round
Date 2018-05-13 Rating 2587.53
Round Color Result Opponent
1 Black Loss JPN Mitsumori Masao 2336.55
2 Black Win JPN Iwano Fumio 2263.28
3 Black Win JPN Maruta Hiroki 2159.32
4 White Win JPN Sato Kiyotomi 2446.60
Team World Championship 2018
Date 2018-05-05 Rating 2588.78
Round Color Result Opponent
1 Black Win EST Lillemaa Argo 2199.66
2 Black Win EST Purk Andry 2638.43
4 White Win RRA Kachaev Denis 2545.84
5 Black Win RRA Nikonov Konstantin 2695.83
6 Black Win CHN Liu Yang 2640.06
7 White Win RRA Lavrik-Karmazin Maksim 2503.02
8 White Draw RRA Artemyev Sergey 2580.98
9 Black Loss CHN Liu Yang 2640.06
10 White Loss EST Purk Andry 2638.43
13th All Japan Championship
Date 2018-01-28 Rating 2584.07
Round Color Result Opponent
1 White Loss JPN Ono Takayuki 2388.45
2 White Loss JPN Ishitani Shin-ichi 2422.15
3 White Loss JPN Miyamoto Syunju 2270.53
5 White Win JPN Sato Kiyotomi 2437.91
6 Black Win JPN Maruta Hiroki 2151.53
18 Kanto Renju Emperor Tournament 2nd round
Date 2017-12-17 Rating 2591.15
Round Color Result Opponent
1 Black Draw JPN Sato Kiyotomi 2440.77
2 Black Win JPN Miyamoto Syunju 2276.31
3 Black Loss JPN Nakamura Shigeru 2964.58
4 Black Loss JPN Okabe Hiroshi 2724.13
5 White Win JPN Kusajima Masato 2306.05
18 Kanto Renju Emperor Tournament 1st round
Date 2017-11-01 Rating 2600.55
Round Color Result Opponent
1 Black Win JPN Koyama Akihiro 1968.35
2 White Draw JPN Okabe Hiroshi 2725.61
3 Black Win JPN Ono Takayuki 2383.28
4 White Win JPN Kusajima Masato 2302.19
World Championship 2017, BT
Date 2017-08-12 Rating 2611.95
Round Color Result Opponent
1 Black Win EST Rahumägi Brenet 2332.96
2 Black Win MAC Sun In 2439.32
3 Black Draw CHN Liu Yang 2675.30
4 Black Win CHN Lan Zhiren 2641.87
5 Black Win TPE Yang Yu-Hsiung 2439.08
6 Black Loss MAC Tang Kai Lam 2775.44
7 Black Win EST Topkin Georg-Romet 2527.82
8 White Win TPE Huang Yen-Hua 2465.95
9 Black Loss JPN Okabe Hiroshi 2724.99
World Championship 2017, QT
Date 2017-08-05 Rating 2611.84
Round Color Result Opponent
1 White Win EST Rahumägi Brenet 2332.81
2 White Win RRA Sushkov Vladimir 2878.91
3 Black Loss CHN Lan Zhiren 2640.99
4 Black Loss CHN Mei Fan 2700.78
5 White Draw JPN Okabe Hiroshi 2725.07
6 Black Win KOR Kim Su Chan 2312.25
7 Black Win TPE Lu Wei-Yuan 2607.79
55 Meijinsen Qualification East Japan area 2nd round
Date 2017-06-11 Rating 2605.16
Round Color Result Opponent
1 Black Win JPN Tomobe Katsuhiro 2166.82
2 White Loss JPN Tamada Yoichi 2542.95
3 White Loss JPN Ono Takayuki 2380.74
4 Black Win JPN Miyamoto Syunju 2273.21
5 Black Loss JPN Sato Kiyotomi 2475.12
12th All Japan Championship
Date 2017-03-26 Rating 2611.63
Round Color Result Opponent
1 Black Win JPN Kusajima Masato 2290.96
2 Black Loss JPN Nakamura Shigeru 2970.67
3 Black Win JPN Ishitani Shin-ichi 2398.62
4 Black Win JPN Nakayama Tomoharu 2798.73
5 Black Loss JPN Kamiya Shunsuke 2793.45
6 White Loss JPN Tachi Masaya 2535.11
20 New Year (Mikami) Cup
Date 2017-01-22 Rating 2616.02
Round Color Result Opponent
S2 Black Win JPN Sato Kiyotomi 2496.27
S3 Black Loss JPN Nakamura Shigeru 2968.89
S4 Black Win JPN Ishitani Shin-ichi 2398.50
S5 Black Loss JPN Okabe Hiroshi 2723.95
17 Kanto Renju Emperor Tournament 1st round
Date 2016-11-23 Rating 2619.59
Round Color Result Opponent
1 Black Win JPN Demachi Koichiro 1936.65
2 Black Loss JPN Okabe Hiroshi 2718.29
3 Black Win JPN Iwano Fumio 2274.29
4 White Win JPN Ishitani Shin-ichi 2404.98
54 Meijinsen Tournament
Date 2016-09-19 Rating 2623.44
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2365.69
2 Black Loss JPN Kamiya Shunsuke 2764.81
3 White Draw JPN Hasegawa Kazuto 2644.16
4 White Draw JPN Iio Yoshihiro 2565.80
5 Black Win JPN Tanaka Toshiki 2449.12
6 Black Draw JPN Nakayama Tomoharu 2782.32
7 Black Draw JPN Maruyama Yasushi 2295.76
8 Black Win JPN Kuga Akio 2372.79
9 White Loss JPN Okabe Hiroshi 2722.71
33 Kanto Championship
Date 2016-07-31 Rating 2627.68
Round Color Result Opponent
1 White Win JPN Kato Yasuhiro 2047.95
2 Black Loss JPN Nakamura Shigeru 2959.69
3 Black Loss JPN Okabe Hiroshi 2726.80
4 Black Win JPN Nakamura Souta 2279.44
5 Black Draw JPN Nakayama Tomoharu 2781.15
6 Black Draw JPN Ishitani Shin-ichi 2391.82
54 Meijinsen Qualification East Japan area 2nd round
Date 2016-06-12 Rating 2634.15
Round Color Result Opponent
1 White Win JPN Kusajima Masato 2270.95
2 Black Win JPN Kamiya Shunsuke 2731.92
3 White Win JPN Tamada Yoichi 2573.52
4 Black Draw JPN Mitsumori Masao 2358.25
5 White Draw JPN Okabe Hiroshi 2729.00
19 Mikami Cup
Date 2016-03-13 Rating 2636.42
Round Color Result Opponent
S1 White Win JPN Ishitani Shin-ichi 2396.38
S2 Black Loss JPN Nakamura Shigeru 2945.41
S3 White Win JPN Kusajima Masato 2267.88
S4 Black Loss JPN Okabe Hiroshi 2724.65
16th Kanto Renju Emperor Tournament Final
Date 2016-02-14 Rating 2637.78
Round Color Result Opponent
1 Black Loss JPN Nakayama Tomoharu 2784.23
2 White Loss JPN Nakayama Tomoharu 2784.23
11th All Japan Championship
Date 2016-01-11 Rating 2641.71
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2126.78
2 Black Win JPN Nakamura Souta 2306.90
3 Black Win JPN Okabe Hiroshi 2719.46
4 Black Loss JPN Nakayama Tomoharu 2782.58
5 White Loss JPN Sato Kiyotomi 2541.92
6 White Draw JPN Tamada Yoichi 2577.09
16 Kanto Renju Emperor Tournament 2nd round
Date 2015-12-13 Rating 2645.87
Round Color Result Opponent
1 White Win JPN Sato Kiyotomi 2541.47
2 White Win JPN Ono Takayuki 2329.61
3 Black Loss JPN Okabe Hiroshi 2719.07
4 Black Draw JPN Nakayama Tomoharu 2780.71
5 White Win JPN Nakamura Shigeru 2928.32
16 Kanto Renju Emperor Tournament 1st round
Date 2015-11-15 Rating 2646.41
Round Color Result Opponent
1 Black Win JPN Ishitani Shin-ichi 2398.43
2 Black Win JPN Sato Kiyotomi 2538.51
3 Black Win JPN Okabe Hiroshi 2719.90
4 Black Win JPN Ono Takayuki 2330.41
53 Meijinsen Tournament
Date 2015-09-22 Rating 2639.74
Round Color Result Opponent
1 Black Loss JPN Hasegawa Kazuto 2677.05
2 Black Win JPN Oosumi Yuuki 2777.40
3 White Win JPN Ishitani Shin-ichi 2396.50
4 Black Draw JPN Nakayama Tomoharu 2773.61
5 White Loss JPN Kawamura Norihiko 2627.69
6 White Loss JPN Tamada Yoichi 2587.25
7 Black Draw JPN Iio Yoshihiro 2536.04
8 White Win JPN Matsuura Hiroshi 2402.99
9 Black Draw JPN Okabe Hiroshi 2722.06
World Championship 2015, BT
Date 2015-08-12 Rating 2636.01
Round Color Result Opponent
1 White Win CHN Huang Xiuyi 2193.08
2 Black Loss JPN Miyagawa Junzo 2250.72
3 Black Win EST Topkin Georg-Romet 2340.16
4 Black Win TPE Wang Chih-Kung 2344.65
5 Black Loss RRA Sirategyan Karen 2444.40
6 Black Win JPN Ishitani Shin-ichi 2399.00
7 Black Win RRA Lavrik-Karmazin Maksim 2294.96
8 White Win JPN Mano Yoshihisa 2368.29
9 White Draw JPN Nakayama Tomoharu 2769.69
World Championship 2015, QT
Date 2015-08-05 Rating 2635.83
Round Color Result Opponent
1 Black Win EST Topkin Georg-Romet 2338.70
2 Black Win JPN Nakayama Tomoharu 2768.28
3 Black Loss JPN Kamiya Shunsuke 2709.71
4 White Draw CHN Wang Qingqing 2630.76
5 Black Win TPE Huang Yen-Hua 2479.51
6 Black Loss RRA Epifanov Dmitry 2712.16
7 Black Win TPE Lin Liu-Min 2572.73
Kanto Championship
Date 2015-07-20 Rating 2634.09
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2108.66
2 Black Win JPN Nakamura Shigeru 2909.93
3 Black Draw JPN Okabe Hiroshi 2730.85
4 White Win JPN Iwano Fumio 2255.51
5 Black Loss JPN Nakayama Tomoharu 2767.45
6 Black Win CHN Zhao Jiadong 2141.40
53 Meijinsen Qualification East Japan area 2nd round
Date 2015-06-14 Rating 2626.78
Round Color Result Opponent
1 White Loss JPN Tamada Yoichi 2594.95
2 Black Win JPN Sato Kiyotomi 2510.63
3 White Win JPN Ono Takayuki 2328.58
5 Black Draw JPN Kamiya Shunsuke 2696.44
6 White Win JPN Nakamura Souta 2298.28
53 Meijinsen Qualification East Japan area 1st round
Date 2015-05-10 Rating 2618.99
Round Color Result Opponent
1 Black Win JPN Mitsumori Masao 2330.00
2 Black Win JPN Iwano Fumio 2249.84
3 Black Win JPN Nakamura Souta 2296.47
4 White Loss JPN Kamiya Shunsuke 2690.57
10th All Japan Championship
Date 2015-03-29 Rating 2609.62
Round Color Result Opponent
1 White Win JPN Fujikawa Masaki 2097.72
2 White Loss JPN Kamiya Shunsuke 2679.58
3 Black Win JPN Kato Yasuhiro 2066.64
4 Black Win JPN Mitsumori Masao 2328.43
5 Black Loss JPN Ishitani Shin-ichi 2428.59
6 Black Win JPN Tanizaki Ryusuke 2206.34
12 Kanto Renju Emperor Tournament 1st round
Date 2011-10-23 Rating 2440.69
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2773.61
2 White Win JPN Suzuki Rin 1993.20
3 White Loss JPN Isobe Taizan 2423.96
4 White Loss JPN Fukui Nobuhiro 2475.16
49 Meijinsen Qualification East-Japan area 1st round
Date 2011-06-12 Rating 2438.01
Round Color Result Opponent
1 Black Loss JPN Isobe Taizan 2410.94
2 Black Win JPN Kudomi Takahiro 2415.61
3 Black Loss JPN Nakayama Tomoharu 2556.27
4 Black Win JPN Ono Takayuki 2398.74
ex Black Loss JPN Nakayama Tomoharu 2556.27
28th Kanto Shineisen Tournament
Date 2011-04-17 Rating 2438.75
Round Color Result Opponent
1 White Win JPN Kon Akira 2009.53
2 Black Win JPN Kamiya Shunsuke 2414.37
3 White Win JPN Ozawa Tetsushi 2094.54
4 White Loss JPN Nakayama Tomoharu 2544.76
5 Black Win JPN Tomobe Katsuhiro 2231.71
5 White Loss JPN Kamiya Shunsuke 2414.37
14th Mikami Cup Tournament
Date 2011-01-30 Rating 2439.67
Round Color Result Opponent
A1 Black Win JPN Kon Akira 2002.07
A2 White Loss JPN Iwano Fumio 2133.78
A3 Black Win JPN Matsuoka Teruo 1991.19
A4 Black Win JPN Kise Katsumi 2523.38
A5 Black Win JPN Isobe Seiji 2025.71
8th Middle-dan Players Tournament
Date 2009-08-30 Rating 2446.24
Round Color Result Opponent
1 White Win JPN Yamamoto Yasuhiro 2149.57
2 White Win JPN Gakumazawa Hideaki 2140.32
3 Black Loss JPN Sato Kiyotomi 2435.75
4 White Win JPN Miyagawa Junzo 2203.85
5 White Draw JPN Maruyama Yasushi 2263.89
6 Black Win JPN Ono Takayuki 2404.63
46th Meijinsen Qualification East-Japan area 2nd round
Date 2008-07-13 Rating 2443.06
Round Color Result Opponent
White Loss JPN Kawamura Norihiko 2657.91
White Loss JPN Sato Kiyotomi 2435.63
White Win JPN Arita Nobuyoshi 2393.99
White Loss JPN Isobe Taizan 2415.97
Black Win JPN Nagao Noriaki 2262.35
46th Meijinsen Qualification East-Japan area 1st round
Date 2008-06-15 Rating 2444.66
Round Color Result Opponent
1 Black Win JPN Sato Kiyotomi 2430.18
2 White Win JPN Tanno Yoshitaka 2123.00
3 Black Win JPN Ono Takayuki 2400.41
4 Black Win JPN Kudomi Takahiro 2340.32
25th Kanto Shineisen Tournament
Date 2008-04-13 Rating 2438.42
Round Color Result Opponent
1 White Win JPN Fujikawa Masaki 2105.04
2 Black Win JPN Watanabe Tatsuya 2157.38
3 White Win JPN Tomobe Katsuhiro 2065.55
4 Black Win JPN Iwano Fumio 2190.36
5 Black Draw JPN Ono Takayuki 2396.66
2nd All Japan Championship (WC Qualification)
Date 2007-03-25 Rating 2377.55
Round Color Result Opponent
1 White Win JPN Kuramoto Hideharu 1889.27
2 Black Loss JPN Yamaguchi Yusui 2650.30
3 Black Loss JPN Iio Yoshihiro 2523.29
4 White Win JPN Maruta Hiroki 2025.60
5 White Win JPN Tanno Yoshitaka 2130.35
6 Black Win JPN Ono Takayuki 2343.74
10th Mikami Cup Tournament, A-class
Date 2007-01-28 Rating 2366.55
Round Color Result Opponent
1 Black Win JPN Matsuoka Teruo 1875.97
2 White Loss JPN Iwano Fumio 2144.49
3 Black Win JPN Maruta Hiroki 2022.35
4 White Win JPN Tomobe Katsuhiro 2056.71
5 Black Win JPN Kobayashi Koichi 2099.80
23rd Kanto Shinei Tournament
Date 2006-09-10 Rating 2343.46
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2004.19
1 Black Win JPN Teshima Masakatsu 1953.27
2 Black Loss JPN Tanizaki Ryusuke 2127.87
3 Black Win JPN Matsuoka Teruo 1854.85
4 White Win JPN Iwano Fumio 2111.62
5 White Loss JPN Watanabe Tatsuya 2136.27
Meijin-sen Qual, East Japan area 1st round
Date 2006-06-18 Rating 2339.48
Round Color Result Opponent
1 Black Win JPN Maruta Koji 2113.61
2 White Win JPN Mitsumori Masao 2254.08
3 Black Win JPN Kudomi Takahiro 2285.18
4 Black Loss JPN Kamemoto Daichi 2207.71
23rd Kanto Championship
Date 2006-05-21 Rating 2337.12
Round Color Result Opponent
1 White Loss JPN Kawamura Norihiko 2665.07
2 White Win JPN Tanizaki Ryusuke 2114.67
3 Black Win JPN Kudomi Takahiro 2283.57
4 White Win JPN Isobe Taizan 2412.05
5 White Loss JPN Nakamura Shigeru 2848.00
46th Suisei-sen tournament final round
Date 2006-04-16 Rating 2330.01
Round Color Result Opponent
White Win JPN Itami Yoshiyuki 2158.67
White Win JPN Nagao Noriaki 2222.44
White Loss JPN Kato Yasuhiro 2052.52
White Win JPN Hara Masao 2078.71
Black Loss JPN Ono Takayuki 2305.62
1st All Japan Championship
Date 2006-03-26 Rating 2327.04
Round Color Result Opponent
1 Black Win JPN Tadokoro Hosai 1931.53
2 Black Loss JPN Isobe Taizan 2426.28
3 Black Loss JPN Tanizaki Ryusuke 2113.58
4 White Win JPN Itami Yoshiyuki 2161.57
5 Black Win JPN Sato Kiyotomi 2411.41
6 White Win JPN Miyoshi Takeo 2275.71
46th Suisei-sen Tournament - 1st round
Date 2006-03-12 Rating 2324.62
Round Color Result Opponent
1 Black Win JPN Fujikawa Masaki 2030.54
2 White Win JPN Tadokoro Hosai 1930.99
3 White Loss JPN Nagao Noriaki 2224.41
4 White Win JPN Tomobe Katsuhiro 2091.86
9th Mikami Cup - A Class
Date 2006-01-29 Rating 2318.23
Round Color Result Opponent
1 Black Win JPN Iwano Fumio 2075.01
2 White Win JPN Teshima Masakatsu 1958.27
3 White Loss JPN Ono Takayuki 2304.75
4 White Win JPN Nakata Shinsuke 1976.91
5 Black Win JPN Watanabe Tatsuya 2134.59
37th Kyoto Classified - group 1
Date 2005-11-13 Rating 2305.03
Round Color Result Opponent
1 Black Win JPN Ozawa Tetsushi 2016.28
2 White Win JPN Itami Yoshiyuki 2180.55
3 White Loss JPN Oosumi Yuuki 2405.49
4 White Win JPN Hayashi Koji 2006.33
5 Black Win JPN Ono Takayuki 2297.04
6 White Loss JPN Shinoda Kiyoshi 2347.41
6th Kanto Renju Emperor Tournament - Semifinal
Date 2005-10-23 Rating 2300.66
Round Color Result Opponent
White Loss JPN Yamaguchi Yusui 2596.61
White Loss JPN Okabe Hiroshi 2592.50
White Loss JPN Isobe Taizan 2458.67
White Loss JPN Kamemoto Daichi 2181.50
White Win JPN Sato Kiyotomi 2395.50
6th Kanto Renju Emperor Tournament - 1st round
Date 2005-10-22 Rating 2300.52
Round Color Result Opponent
1 White Win JPN Koyama Masayuki 1730.14
2 White Loss JPN Sato Kiyotomi 2395.55
3 White Win JPN Teshima Masakatsu 1958.66
4 Black Win JPN Nakata Shinsuke 1968.71
22nd Kanto Shineisen Tournament
Date 2005-09-11 Rating 2295.23
Round Color Result Opponent
1 Black Win JPN Teshima Masakatsu 1958.66
2 White Win JPN Tadokoro Hosai 1927.71
3 Black Win JPN Tomobe Katsuhiro 2076.09
4 Black Loss JPN Arita Nobuyoshi 2343.70
5 Black Win JPN Kamemoto Daichi 2170.61
43rd Meijinsen Qualification: East Japan 1st round
Date 2005-06-12 Rating 2279.91
Round Color Result Opponent
1 Black Win JPN Maruta Koji 2152.90
2 Black Loss JPN Kudomi Takahiro 2300.35
3 White Loss JPN Arita Nobuyoshi 2325.72
4 White Win JPN Ohno Syunzo 2075.37
22nd Kanto Championship
Date 2005-05-22 Rating 2277.18
Round Color Result Opponent
1 White Win JPN Mitsumori Masao 2267.45
2 White Loss JPN Yamaguchi Yusui 2563.15
3 White Win JPN Kudomi Takahiro 2300.84
4 Black Loss JPN Maruta Koji 2157.55
5 White Loss JPN Sato Kiyotomi 2395.11
45th Suisei-sen Tournament
Date 2005-03-20 Rating 2270.00
Round Color Result Opponent
1 White Win JPN Muramatsu Yasuhiro 1692.07
2 White Win JPN Arita Nobuyoshi 2299.44
3 White Win JPN Sano Hiroyuki 2136.47
4 Black Win JPN Kobayashi Koichi 2094.34
8th Mikami Cup - A Class
Date 2005-01-23 Rating 2256.40
Round Color Result Opponent
1 Black Draw JPN Arita Nobuyoshi 2287.04
2 Black Win JPN Nagumo Natsuhiko 2056.41
3 Black Win JPN Kato Yasuhiro 2024.93
4 White Loss JPN Nagao Noriaki 2244.74
5 Black Win JPN Sato Kiyotomi 2371.27
5th Kanto Renju Emperor Tournament - 1st round
Date 2004-11-28 Rating 2238.84
Round Color Result Opponent
1 White Loss JPN Mitsumori Masao 2249.01
2 Black Loss JPN Tomobe Katsuhiro 2031.69
3 Black Win JPN Mao Richu 1772.11
4 Black Loss JPN Iwano Fumio 2041.35
21st Kanto Shineisen Tournament
Date 2004-09-12 Rating 2231.34
Round Color Result Opponent
1 White Win JPN Shibata Satoru 1710.95
2 Black Loss JPN Sato Kiyotomi 2366.66
3 Black Win JPN Sato Takuma 2170.10
4 White Draw JPN Tashiro Yuichi 2288.85
5 Black Win JPN Hara Masao 2071.28
7th Mikami Cup - A class
Date 2004-01-25 Rating 2195.69
Round Color Result Opponent
4 Black Win JPN Kawabe Tatsuya 1880.06
5 Black Win JPN Itami Yoshiyuki 2149.60
20th Kanto Shineisen Tournament
Date 2003-09-21 Rating 2168.21
Round Color Result Opponent
1 White Loss JPN Kato Yasuhiro 2047.67
2 White Win JPN Maruta Hiroki 1935.54
3 White Loss JPN Sato Takuma 2137.94
4 White Win JPN Sasaki Miyu 1938.32
5 White Loss JPN Itami Yoshiyuki 2152.60