Koyama Jun, Japan - Renju Rating

JPN Koyama Jun (小山純)

Place: Tokyo, Japan

Rating: 2644.57, Std: 111.90, Rank: 40

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

Top rating: 2646.69 (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 2644.57
Round Color Result Opponent
1 Black Loss JPN Inoue Fumiya 2557.88
2 Black Loss JPN Kamiya Shunsuke 2895.78
3 Black Win JPN Okabe Hiroshi 2747.58
4 White Win JPN Yoshikawa Tomoki 2410.94
5 Black Loss JPN Fujita Maiko 2494.81
6 White Win JPN Maruta Hiroki 2230.16
7 Black Win JPN Ono Takayuki 2393.78
26 Kanto Renju Emperor Tournament Qualification round
Date 2025-10-19 Rating 2646.69
Round Color Result Opponent
1 White Win JPN Ishitani Shin-ichi 2385.60
2 Black Win JPN Kawamura Norihiko 2497.71
3 White Win JPN Inoue Fumiya 2555.02
4 White Draw JPN Fujita Maiko 2497.75
60th Meijinsen Qualification Kanto area 1st round
Date 2022-05-22 Rating 2610.86
Round Color Result Opponent
1 White Win JPN Tomobe Katsuhiro 2140.74
2 White Win JPN Maruta Hiroki 2212.24
3 Black Draw JPN Fujita Maiko 2425.15
4 Black Draw JPN Yokoyama Shota 2462.74
57 Meijinsen Tournament
Date 2019-09-16 Rating 2614.39
Round Color Result Opponent
1 Black Draw JPN Inoue Fumiya 2422.15
2 White Loss JPN Kamiya Shunsuke 2826.91
3 Black Loss JPN Kawamura Norihiko 2673.11
4 White Win JPN Matsuura Hiroshi 2364.38
5 Black Loss JPN Nakayama Tomoharu 2828.95
6 White Loss JPN Kawano Takahisa 2463.40
7 White Loss JPN Hasegawa Kazuto 2615.74
8 White Win JPN Okabe Hiroshi 2728.61
9 Black Win JPN Ishitani Shin-ichi 2386.87
World Championship 2019, AT
Date 2019-08-10 Rating 2619.71
Round Color Result Opponent
1 Black Draw CHN Mei Fan 2707.88
2 Black Win EST Oll Aivo 2745.68
3 Black Win JPN Inoue Fumiya 2426.18
4 Black Win RRA Epifanov Dmitry 2674.47
5 Black Loss JPN Nakayama Tomoharu 2823.31
6 Black Win JPN Okabe Hiroshi 2723.85
7 Black Draw JPN Kamiya Shunsuke 2823.88
8 Black Draw SWE Gardström Petter 2702.79
9 White Loss RRA Fedotov Denis 2683.58
10 White Loss CHN Cao Dong 2784.70
11 Black Loss RRA Sushkov Vladimir 2842.15
World Championship 2019, QT
Date 2019-08-02 Rating 2619.51
Round Color Result Opponent
1 White Win SWE Sandstrom Richard 2375.11
2 White Win CHN Li Xiaoqing 2660.84
3 Black Loss EST Mesila Villem 2667.27
4 Black Win MAC Wai Chan Keong 2788.22
5 Black Draw RRA Fedotov Denis 2686.23
6 White Loss SWE Gardström Petter 2704.44
7 White Win EST Topkin Georg-Romet 2628.79
57 Meijinsen Qualification East Japan area 2nd round
Date 2019-06-23 Rating 2612.88
Round Color Result Opponent
1 Black Win JPN Maruta Hiroki 2190.42
2 Black Win JPN Maruta Koji 2146.26
3 White Win JPN Inoue Fumiya 2429.59
4 Black Win JPN Kusajima Masato 2261.56
5 White Win JPN Ono Takayuki 2402.91
14th All Japan Championship
Date 2019-03-31 Rating 2591.95
Round Color Result Opponent
1 White Loss JPN Fujita Maiko 2292.35
2 Black Win JPN Chigira Makoto 2093.69
3 White Draw JPN Inoue Fumiya 2430.16
4 White Win JPN Ono Takayuki 2401.24
5 Black Loss JPN Nakamura Shigeru 2998.01
6 Black Loss JPN Okabe Hiroshi 2702.91
19 Renju Emperor Tournament Kanto area 1st round
Date 2018-10-21 Rating 2573.22
Round Color Result Opponent
1 Black Win JPN Demachi Koichiro 1927.91
2 White Loss JPN Iwano Fumio 2252.04
3 White Draw JPN Ishitani Shin-ichi 2428.92
4 White Loss JPN Inoue Fumiya 2408.60
56 Meijinsen Tournament
Date 2018-09-17 Rating 2575.90
Round Color Result Opponent
1 Black Win JPN Kuga Akio 2429.21
2 Black Loss JPN Matsuura Hiroshi 2356.23
3 White Win JPN Okabe Hiroshi 2704.36
5 Black Win JPN Kawamura Norihiko 2661.43
6 Black Loss JPN Ishitani Shin-ichi 2431.62
7 Black Loss JPN Kamiya Shunsuke 2801.88
8 White Loss JPN Nakamura Shigeru 3002.49
9 White Win JPN Hasegawa Kazuto 2581.03
35 Kanto Championship
Date 2018-07-16 Rating 2578.52
Round Color Result Opponent
4 Black Loss JPN Sato Kiyotomi 2445.29
5 White Win JPN Iwano Fumio 2252.75
6 White Win JPN Fujikawa Masaki 2105.68
56 Meijinsen Qualification East Japan area 2nd round
Date 2018-06-25 Rating 2580.53
Round Color Result Opponent
1 White Win JPN Kusajima Masato 2309.23
2 Black Win JPN Sato Kiyotomi 2445.93
3 White Loss JPN Ono Takayuki 2394.27
56 Meijinsen Qualification Kanto area 1st round
Date 2018-05-13 Rating 2585.88
Round Color Result Opponent
1 Black Loss JPN Mitsumori Masao 2335.18
2 Black Win JPN Iwano Fumio 2261.98
3 Black Win JPN Maruta Hiroki 2158.09
4 White Win JPN Sato Kiyotomi 2445.20
Team World Championship 2018
Date 2018-05-05 Rating 2587.13
Round Color Result Opponent
1 Black Win EST Lillemaa Argo 2197.76
2 Black Win EST Purk Andry 2636.91
4 White Win RRA Kachaev Denis 2543.98
5 Black Win RRA Nikonov Konstantin 2693.97
6 Black Win CHN Liu Yang 2638.64
7 White Win RRA Lavrik-Karmazin Maksim 2501.14
8 White Draw RRA Artemyev Sergey 2579.21
9 Black Loss CHN Liu Yang 2638.64
10 White Loss EST Purk Andry 2636.91
13th All Japan Championship
Date 2018-01-28 Rating 2582.46
Round Color Result Opponent
1 White Loss JPN Ono Takayuki 2387.09
2 White Loss JPN Ishitani Shin-ichi 2420.66
3 White Loss JPN Miyamoto Syunju 2269.18
5 White Win JPN Sato Kiyotomi 2436.49
6 Black Win JPN Maruta Hiroki 2150.29
18 Kanto Renju Emperor Tournament 2nd round
Date 2017-12-17 Rating 2589.55
Round Color Result Opponent
1 Black Draw JPN Sato Kiyotomi 2439.34
2 Black Win JPN Miyamoto Syunju 2274.92
3 Black Loss JPN Nakamura Shigeru 2962.96
4 Black Loss JPN Okabe Hiroshi 2722.59
5 White Win JPN Kusajima Masato 2305.12
18 Kanto Renju Emperor Tournament 1st round
Date 2017-11-01 Rating 2598.96
Round Color Result Opponent
1 Black Win JPN Koyama Akihiro 1967.33
2 White Draw JPN Okabe Hiroshi 2724.07
3 Black Win JPN Ono Takayuki 2381.90
4 White Win JPN Kusajima Masato 2301.22
World Championship 2017, BT
Date 2017-08-12 Rating 2610.36
Round Color Result Opponent
1 Black Win EST Rahumägi Brenet 2331.11
2 Black Win MAC Sun In 2437.42
3 Black Draw CHN Liu Yang 2673.80
4 Black Win CHN Lan Zhiren 2640.36
5 Black Win TPE Yang Yu-Hsiung 2437.35
6 Black Loss MAC Tang Kai Lam 2773.80
7 Black Win EST Topkin Georg-Romet 2525.98
8 White Win TPE Huang Yen-Hua 2464.17
9 Black Loss JPN Okabe Hiroshi 2723.44
World Championship 2017, QT
Date 2017-08-05 Rating 2610.26
Round Color Result Opponent
1 White Win EST Rahumägi Brenet 2330.96
2 White Win RRA Sushkov Vladimir 2877.09
3 Black Loss CHN Lan Zhiren 2639.49
4 Black Loss CHN Mei Fan 2699.26
5 White Draw JPN Okabe Hiroshi 2723.52
6 Black Win KOR Kim Su Chan 2310.50
7 Black Win TPE Lu Wei-Yuan 2606.10
55 Meijinsen Qualification East Japan area 2nd round
Date 2017-06-11 Rating 2603.59
Round Color Result Opponent
1 Black Win JPN Tomobe Katsuhiro 2165.53
2 White Loss JPN Tamada Yoichi 2541.50
3 White Loss JPN Ono Takayuki 2379.34
4 Black Win JPN Miyamoto Syunju 2271.81
5 Black Loss JPN Sato Kiyotomi 2473.65
12th All Japan Championship
Date 2017-03-26 Rating 2610.07
Round Color Result Opponent
1 Black Win JPN Kusajima Masato 2289.83
2 Black Loss JPN Nakamura Shigeru 2969.09
3 Black Win JPN Ishitani Shin-ichi 2397.06
4 Black Win JPN Nakayama Tomoharu 2797.13
5 Black Loss JPN Kamiya Shunsuke 2791.81
6 White Loss JPN Tachi Masaya 2533.56
20 New Year (Mikami) Cup
Date 2017-01-22 Rating 2614.47
Round Color Result Opponent
S2 Black Win JPN Sato Kiyotomi 2494.75
S3 Black Loss JPN Nakamura Shigeru 2967.32
S4 Black Win JPN Ishitani Shin-ichi 2396.92
S5 Black Loss JPN Okabe Hiroshi 2722.42
17 Kanto Renju Emperor Tournament 1st round
Date 2016-11-23 Rating 2618.06
Round Color Result Opponent
1 Black Win JPN Demachi Koichiro 1935.70
2 Black Loss JPN Okabe Hiroshi 2716.77
3 Black Win JPN Iwano Fumio 2272.99
4 White Win JPN Ishitani Shin-ichi 2403.39
54 Meijinsen Tournament
Date 2016-09-19 Rating 2621.92
Round Color Result Opponent
1 White Win JPN Matsuura Hiroshi 2364.31
2 Black Loss JPN Kamiya Shunsuke 2763.22
3 White Draw JPN Hasegawa Kazuto 2642.70
4 White Draw JPN Iio Yoshihiro 2564.34
5 Black Win JPN Tanaka Toshiki 2447.81
6 Black Draw JPN Nakayama Tomoharu 2780.76
7 Black Draw JPN Maruyama Yasushi 2294.16
8 Black Win JPN Kuga Akio 2371.35
9 White Loss JPN Okabe Hiroshi 2721.20
33 Kanto Championship
Date 2016-07-31 Rating 2626.16
Round Color Result Opponent
1 White Win JPN Kato Yasuhiro 2046.00
2 Black Loss JPN Nakamura Shigeru 2958.15
3 Black Loss JPN Okabe Hiroshi 2725.29
4 Black Win JPN Nakamura Souta 2277.96
5 Black Draw JPN Nakayama Tomoharu 2779.60
6 Black Draw JPN Ishitani Shin-ichi 2390.17
54 Meijinsen Qualification East Japan area 2nd round
Date 2016-06-12 Rating 2632.64
Round Color Result Opponent
1 White Win JPN Kusajima Masato 2269.86
2 Black Win JPN Kamiya Shunsuke 2730.34
3 White Win JPN Tamada Yoichi 2572.03
4 Black Draw JPN Mitsumori Masao 2356.84
5 White Draw JPN Okabe Hiroshi 2727.50
19 Mikami Cup
Date 2016-03-13 Rating 2634.92
Round Color Result Opponent
S1 White Win JPN Ishitani Shin-ichi 2394.64
S2 Black Loss JPN Nakamura Shigeru 2943.89
S3 White Win JPN Kusajima Masato 2266.81
S4 Black Loss JPN Okabe Hiroshi 2723.16
16th Kanto Renju Emperor Tournament Final
Date 2016-02-14 Rating 2636.28
Round Color Result Opponent
1 Black Loss JPN Nakayama Tomoharu 2782.72
2 White Loss JPN Nakayama Tomoharu 2782.72
11th All Japan Championship
Date 2016-01-11 Rating 2640.20
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2125.42
2 Black Win JPN Nakamura Souta 2305.38
3 Black Win JPN Okabe Hiroshi 2717.97
4 Black Loss JPN Nakayama Tomoharu 2781.07
5 White Loss JPN Sato Kiyotomi 2540.24
6 White Draw JPN Tamada Yoichi 2575.59
16 Kanto Renju Emperor Tournament 2nd round
Date 2015-12-13 Rating 2644.37
Round Color Result Opponent
1 White Win JPN Sato Kiyotomi 2539.79
2 White Win JPN Ono Takayuki 2328.18
3 Black Loss JPN Okabe Hiroshi 2717.59
4 Black Draw JPN Nakayama Tomoharu 2779.21
5 White Win JPN Nakamura Shigeru 2926.82
16 Kanto Renju Emperor Tournament 1st round
Date 2015-11-15 Rating 2644.92
Round Color Result Opponent
1 Black Win JPN Ishitani Shin-ichi 2396.69
2 Black Win JPN Sato Kiyotomi 2536.82
3 Black Win JPN Okabe Hiroshi 2718.42
4 Black Win JPN Ono Takayuki 2328.98
53 Meijinsen Tournament
Date 2015-09-22 Rating 2638.25
Round Color Result Opponent
1 Black Loss JPN Hasegawa Kazuto 2675.61
2 Black Win JPN Oosumi Yuuki 2775.98
3 White Win JPN Ishitani Shin-ichi 2394.77
4 Black Draw JPN Nakayama Tomoharu 2772.12
5 White Loss JPN Kawamura Norihiko 2626.19
6 White Loss JPN Tamada Yoichi 2585.75
7 Black Draw JPN Iio Yoshihiro 2534.61
8 White Win JPN Matsuura Hiroshi 2401.65
9 Black Draw JPN Okabe Hiroshi 2720.58
World Championship 2015, BT
Date 2015-08-12 Rating 2634.53
Round Color Result Opponent
1 White Win CHN Huang Xiuyi 2191.97
2 Black Loss JPN Miyagawa Junzo 2249.38
3 Black Win EST Topkin Georg-Romet 2338.59
4 Black Win TPE Wang Chih-Kung 2342.97
5 Black Loss RRA Sirategyan Karen 2442.82
6 Black Win JPN Ishitani Shin-ichi 2397.28
7 Black Win RRA Lavrik-Karmazin Maksim 2293.50
8 White Win JPN Mano Yoshihisa 2366.74
9 White Draw JPN Nakayama Tomoharu 2768.22
World Championship 2015, QT
Date 2015-08-05 Rating 2634.35
Round Color Result Opponent
1 Black Win EST Topkin Georg-Romet 2337.13
2 Black Win JPN Nakayama Tomoharu 2766.80
3 Black Loss JPN Kamiya Shunsuke 2708.16
4 White Draw CHN Wang Qingqing 2629.43
5 Black Win TPE Huang Yen-Hua 2478.12
6 Black Loss RRA Epifanov Dmitry 2710.63
7 Black Win TPE Lin Liu-Min 2571.30
Kanto Championship
Date 2015-07-20 Rating 2632.62
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2107.29
2 Black Win JPN Nakamura Shigeru 2908.47
3 Black Draw JPN Okabe Hiroshi 2729.39
4 White Win JPN Iwano Fumio 2254.20
5 Black Loss JPN Nakayama Tomoharu 2765.98
6 Black Win CHN Zhao Jiadong 2139.05
53 Meijinsen Qualification East Japan area 2nd round
Date 2015-06-14 Rating 2625.31
Round Color Result Opponent
1 White Loss JPN Tamada Yoichi 2593.43
2 Black Win JPN Sato Kiyotomi 2508.89
3 White Win JPN Ono Takayuki 2327.15
5 Black Draw JPN Kamiya Shunsuke 2694.90
6 White Win JPN Nakamura Souta 2296.82
53 Meijinsen Qualification East Japan area 1st round
Date 2015-05-10 Rating 2617.52
Round Color Result Opponent
1 Black Win JPN Mitsumori Masao 2328.55
2 Black Win JPN Iwano Fumio 2248.53
3 Black Win JPN Nakamura Souta 2295.01
4 White Loss JPN Kamiya Shunsuke 2689.02
10th All Japan Championship
Date 2015-03-29 Rating 2608.17
Round Color Result Opponent
1 White Win JPN Fujikawa Masaki 2096.02
2 White Loss JPN Kamiya Shunsuke 2678.05
3 Black Win JPN Kato Yasuhiro 2064.80
4 Black Win JPN Mitsumori Masao 2326.98
5 Black Loss JPN Ishitani Shin-ichi 2426.95
6 Black Win JPN Tanizaki Ryusuke 2204.76
12 Kanto Renju Emperor Tournament 1st round
Date 2011-10-23 Rating 2439.63
Round Color Result Opponent
1 Black Loss JPN Oosumi Yuuki 2772.55
2 White Win JPN Suzuki Rin 1992.27
3 White Loss JPN Isobe Taizan 2422.91
4 White Loss JPN Fukui Nobuhiro 2474.10
49 Meijinsen Qualification East-Japan area 1st round
Date 2011-06-12 Rating 2436.99
Round Color Result Opponent
1 Black Loss JPN Isobe Taizan 2409.93
2 Black Win JPN Kudomi Takahiro 2414.49
3 Black Loss JPN Nakayama Tomoharu 2555.26
4 Black Win JPN Ono Takayuki 2397.72
ex Black Loss JPN Nakayama Tomoharu 2555.26
28th Kanto Shineisen Tournament
Date 2011-04-17 Rating 2437.74
Round Color Result Opponent
1 White Win JPN Kon Akira 2008.64
2 Black Win JPN Kamiya Shunsuke 2413.32
3 White Win JPN Ozawa Tetsushi 2093.67
4 White Loss JPN Nakayama Tomoharu 2543.76
5 Black Win JPN Tomobe Katsuhiro 2230.76
5 White Loss JPN Kamiya Shunsuke 2413.32
14th Mikami Cup Tournament
Date 2011-01-30 Rating 2438.69
Round Color Result Opponent
A1 Black Win JPN Kon Akira 2001.19
A2 White Loss JPN Iwano Fumio 2132.86
A3 Black Win JPN Matsuoka Teruo 1990.34
A4 Black Win JPN Kise Katsumi 2522.39
A5 Black Win JPN Isobe Seiji 2024.96
8th Middle-dan Players Tournament
Date 2009-08-30 Rating 2445.39
Round Color Result Opponent
1 White Win JPN Yamamoto Yasuhiro 2148.74
2 White Win JPN Gakumazawa Hideaki 2139.57
3 Black Loss JPN Sato Kiyotomi 2434.93
4 White Win JPN Miyagawa Junzo 2203.04
5 White Draw JPN Maruyama Yasushi 2263.06
6 Black Win JPN Ono Takayuki 2403.80
46th Meijinsen Qualification East-Japan area 2nd round
Date 2008-07-13 Rating 2442.32
Round Color Result Opponent
White Loss JPN Kawamura Norihiko 2657.13
White Loss JPN Sato Kiyotomi 2434.89
White Win JPN Arita Nobuyoshi 2393.29
White Loss JPN Isobe Taizan 2415.23
Black Win JPN Nagao Noriaki 2261.63
46th Meijinsen Qualification East-Japan area 1st round
Date 2008-06-15 Rating 2443.92
Round Color Result Opponent
1 Black Win JPN Sato Kiyotomi 2429.45
2 White Win JPN Tanno Yoshitaka 2122.30
3 Black Win JPN Ono Takayuki 2399.70
4 Black Win JPN Kudomi Takahiro 2339.60
25th Kanto Shineisen Tournament
Date 2008-04-13 Rating 2437.70
Round Color Result Opponent
1 White Win JPN Fujikawa Masaki 2104.38
2 Black Win JPN Watanabe Tatsuya 2156.74
3 White Win JPN Tomobe Katsuhiro 2064.90
4 Black Win JPN Iwano Fumio 2189.69
5 Black Draw JPN Ono Takayuki 2395.96
2nd All Japan Championship (WC Qualification)
Date 2007-03-25 Rating 2376.91
Round Color Result Opponent
1 White Win JPN Kuramoto Hideharu 1888.70
2 Black Loss JPN Yamaguchi Yusui 2649.62
3 Black Loss JPN Iio Yoshihiro 2522.58
4 White Win JPN Maruta Hiroki 2025.02
5 White Win JPN Tanno Yoshitaka 2129.72
6 Black Win JPN Ono Takayuki 2343.11
10th Mikami Cup Tournament, A-class
Date 2007-01-28 Rating 2365.92
Round Color Result Opponent
1 Black Win JPN Matsuoka Teruo 1875.41
2 White Loss JPN Iwano Fumio 2143.90
3 Black Win JPN Maruta Hiroki 2021.78
4 White Win JPN Tomobe Katsuhiro 2056.15
5 Black Win JPN Kobayashi Koichi 2099.20
23rd Kanto Shinei Tournament
Date 2006-09-10 Rating 2342.86
Round Color Result Opponent
1 White Win JPN Maruta Hiroki 2003.63
1 Black Win JPN Teshima Masakatsu 1952.75
2 Black Loss JPN Tanizaki Ryusuke 2127.31
3 Black Win JPN Matsuoka Teruo 1854.30
4 White Win JPN Iwano Fumio 2111.05
5 White Loss JPN Watanabe Tatsuya 2135.72
Meijin-sen Qual, East Japan area 1st round
Date 2006-06-18 Rating 2338.90
Round Color Result Opponent
1 Black Win JPN Maruta Koji 2113.04
2 White Win JPN Mitsumori Masao 2253.49
3 Black Win JPN Kudomi Takahiro 2284.57
4 Black Loss JPN Kamemoto Daichi 2207.18
23rd Kanto Championship
Date 2006-05-21 Rating 2336.53
Round Color Result Opponent
1 White Loss JPN Kawamura Norihiko 2664.39
2 White Win JPN Tanizaki Ryusuke 2114.12
3 Black Win JPN Kudomi Takahiro 2282.98
4 White Win JPN Isobe Taizan 2411.44
5 White Loss JPN Nakamura Shigeru 2847.30
46th Suisei-sen tournament final round
Date 2006-04-16 Rating 2329.44
Round Color Result Opponent
White Win JPN Itami Yoshiyuki 2158.14
White Win JPN Nagao Noriaki 2221.87
White Loss JPN Kato Yasuhiro 2051.98
White Win JPN Hara Masao 2078.18
Black Loss JPN Ono Takayuki 2305.04
1st All Japan Championship
Date 2006-03-26 Rating 2326.47
Round Color Result Opponent
1 Black Win JPN Tadokoro Hosai 1931.00
2 Black Loss JPN Isobe Taizan 2425.67
3 Black Loss JPN Tanizaki Ryusuke 2113.03
4 White Win JPN Itami Yoshiyuki 2161.04
5 Black Win JPN Sato Kiyotomi 2410.81
6 White Win JPN Miyoshi Takeo 2275.11
46th Suisei-sen Tournament - 1st round
Date 2006-03-12 Rating 2324.06
Round Color Result Opponent
1 Black Win JPN Fujikawa Masaki 2030.02
2 White Win JPN Tadokoro Hosai 1930.46
3 White Loss JPN Nagao Noriaki 2223.84
4 White Win JPN Tomobe Katsuhiro 2091.33
9th Mikami Cup - A Class
Date 2006-01-29 Rating 2317.66
Round Color Result Opponent
1 Black Win JPN Iwano Fumio 2074.47
2 White Win JPN Teshima Masakatsu 1957.78
3 White Loss JPN Ono Takayuki 2304.19
4 White Win JPN Nakata Shinsuke 1976.44
5 Black Win JPN Watanabe Tatsuya 2134.07
37th Kyoto Classified - group 1
Date 2005-11-13 Rating 2304.48
Round Color Result Opponent
1 Black Win JPN Ozawa Tetsushi 2015.81
2 White Win JPN Itami Yoshiyuki 2180.03
3 White Loss JPN Oosumi Yuuki 2404.89
4 White Win JPN Hayashi Koji 2005.89
5 Black Win JPN Ono Takayuki 2296.48
6 White Loss JPN Shinoda Kiyoshi 2346.86
6th Kanto Renju Emperor Tournament - Semifinal
Date 2005-10-23 Rating 2300.11
Round Color Result Opponent
White Loss JPN Yamaguchi Yusui 2596.00
White Loss JPN Okabe Hiroshi 2591.88
White Loss JPN Isobe Taizan 2458.09
White Loss JPN Kamemoto Daichi 2180.98
White Win JPN Sato Kiyotomi 2394.93
6th Kanto Renju Emperor Tournament - 1st round
Date 2005-10-22 Rating 2299.97
Round Color Result Opponent
1 White Win JPN Koyama Masayuki 1729.68
2 White Loss JPN Sato Kiyotomi 2394.97
3 White Win JPN Teshima Masakatsu 1958.18
4 Black Win JPN Nakata Shinsuke 1968.24
22nd Kanto Shineisen Tournament
Date 2005-09-11 Rating 2294.68
Round Color Result Opponent
1 Black Win JPN Teshima Masakatsu 1958.19
2 White Win JPN Tadokoro Hosai 1927.20
3 Black Win JPN Tomobe Katsuhiro 2075.58
4 Black Loss JPN Arita Nobuyoshi 2343.14
5 Black Win JPN Kamemoto Daichi 2170.09
43rd Meijinsen Qualification: East Japan 1st round
Date 2005-06-12 Rating 2279.38
Round Color Result Opponent
1 Black Win JPN Maruta Koji 2152.37
2 Black Loss JPN Kudomi Takahiro 2299.78
3 White Loss JPN Arita Nobuyoshi 2325.18
4 White Win JPN Ohno Syunzo 2074.86
22nd Kanto Championship
Date 2005-05-22 Rating 2276.65
Round Color Result Opponent
1 White Win JPN Mitsumori Masao 2266.90
2 White Loss JPN Yamaguchi Yusui 2562.56
3 White Win JPN Kudomi Takahiro 2300.28
4 Black Loss JPN Maruta Koji 2157.02
5 White Loss JPN Sato Kiyotomi 2394.55
45th Suisei-sen Tournament
Date 2005-03-20 Rating 2269.48
Round Color Result Opponent
1 White Win JPN Muramatsu Yasuhiro 1691.71
2 White Win JPN Arita Nobuyoshi 2298.91
3 White Win JPN Sano Hiroyuki 2135.94
4 Black Win JPN Kobayashi Koichi 2093.83
8th Mikami Cup - A Class
Date 2005-01-23 Rating 2255.89
Round Color Result Opponent
1 Black Draw JPN Arita Nobuyoshi 2286.51
2 Black Win JPN Nagumo Natsuhiko 2056.06
3 Black Win JPN Kato Yasuhiro 2024.44
4 White Loss JPN Nagao Noriaki 2244.21
5 Black Win JPN Sato Kiyotomi 2370.74
5th Kanto Renju Emperor Tournament - 1st round
Date 2004-11-28 Rating 2238.33
Round Color Result Opponent
1 White Loss JPN Mitsumori Masao 2248.48
2 Black Loss JPN Tomobe Katsuhiro 2031.22
3 Black Win JPN Mao Richu 1771.93
4 Black Loss JPN Iwano Fumio 2040.87
21st Kanto Shineisen Tournament
Date 2004-09-12 Rating 2230.84
Round Color Result Opponent
1 White Win JPN Shibata Satoru 1710.53
2 Black Loss JPN Sato Kiyotomi 2366.14
3 Black Win JPN Sato Takuma 2169.63
4 White Draw JPN Tashiro Yuichi 2288.33
5 Black Win JPN Hara Masao 2070.79
7th Mikami Cup - A class
Date 2004-01-25 Rating 2195.22
Round Color Result Opponent
4 Black Win JPN Kawabe Tatsuya 1879.74
5 Black Win JPN Itami Yoshiyuki 2149.15
20th Kanto Shineisen Tournament
Date 2003-09-21 Rating 2167.76
Round Color Result Opponent
1 White Loss JPN Kato Yasuhiro 2047.23
2 White Win JPN Maruta Hiroki 1935.15
3 White Loss JPN Sato Takuma 2137.50
4 White Win JPN Sasaki Miyu 1937.93
5 White Loss JPN Itami Yoshiyuki 2152.16