Koyama Jun (小山純)
Place: Tokyo, Japan
Rating: 2534.82, Std: 126.74, Rank: 55
First game: 2003-09-21, Last game: 2022-05-22
Top rating: 2585.08 (2015-11-15)
Games: 349, Wins: 200, Draws: 35, Losses: 114
Gy1: 4, Gy2: 4, Gy5: 73
| 60th Meijinsen Qualification Kanto area 1st round | ||||
|---|---|---|---|---|
| Date | 2022-05-22 | Rating | 2534.82 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Tomobe Katsuhiro | 2115.34 |
| 2 | White | Win | Maruta Hiroki | 2140.80 |
| 3 | Black | Draw | Fujita Maiko | 2364.75 |
| 4 | Black | Draw | Yokoyama Shota | 2409.37 |
| 57 Meijinsen Tournament | ||||
| Date | 2019-09-16 | Rating | 2551.14 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Inoue Fumiya | 2372.55 |
| 2 | White | Loss | Kamiya Shunsuke | 2763.10 |
| 3 | Black | Loss | Kawamura Norihiko | 2623.87 |
| 4 | White | Win | Matsuura Hiroshi | 2317.99 |
| 5 | Black | Loss | Nakayama Tomoharu | 2768.65 |
| 6 | White | Loss | Kawano Takahisa | 2391.73 |
| 7 | White | Loss | Hasegawa Kazuto | 2560.24 |
| 8 | White | Win | Okabe Hiroshi | 2666.01 |
| 9 | Black | Win | Ishitani Shin-ichi | 2337.03 |
| World Championship AT | ||||
| Date | 2019-08-10 | Rating | 2555.04 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Mei Fan | 2634.22 |
| 2 | Black | Win | Oll Aivo | 2689.10 |
| 3 | Black | Win | Inoue Fumiya | 2374.77 |
| 4 | Black | Win | Epifanov Dmitry | 2617.39 |
| 5 | Black | Loss | Nakayama Tomoharu | 2764.62 |
| 6 | Black | Win | Okabe Hiroshi | 2662.79 |
| 7 | Black | Draw | Kamiya Shunsuke | 2760.76 |
| 8 | Black | Draw | Gardström Petter | 2637.28 |
| 9 | White | Loss | Fedotov Denis | 2612.35 |
| 10 | White | Loss | Cao Dong | 2713.35 |
| 11 | Black | Loss | Sushkov Vladimir | 2792.50 |
| World Championship QT | ||||
| Date | 2019-08-02 | Rating | 2554.97 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sandstrom Richard | 2332.70 |
| 2 | White | Win | Li Xiaoqing | 2596.84 |
| 3 | Black | Loss | Mesila Villem | 2609.03 |
| 4 | Black | Win | Wai Chan Keong | 2719.41 |
| 5 | Black | Draw | Fedotov Denis | 2614.39 |
| 6 | White | Loss | Gardström Petter | 2638.38 |
| 7 | White | Win | Topkin Georg-Romet | 2564.08 |
| 57 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2019-06-23 | Rating | 2550.78 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Hiroki | 2141.36 |
| 2 | Black | Win | Maruta Koji | 2097.08 |
| 3 | White | Win | Inoue Fumiya | 2376.70 |
| 4 | Black | Win | Kusajima Masato | 2202.82 |
| 5 | White | Win | Ono Takayuki | 2348.52 |
| 14th All Japan Championship | ||||
| Date | 2019-03-31 | Rating | 2537.11 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Fujita Maiko | 2248.63 |
| 2 | Black | Win | Chigira Makoto | 2041.35 |
| 3 | White | Draw | Inoue Fumiya | 2376.36 |
| 4 | White | Win | Ono Takayuki | 2347.53 |
| 5 | Black | Loss | Nakamura Shigeru | 2930.19 |
| 6 | Black | Loss | Okabe Hiroshi | 2648.60 |
| 19 Renju Emperor Tournament Kanto area 1st round | ||||
| Date | 2018-10-21 | Rating | 2525.14 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1888.57 |
| 2 | White | Loss | Iwano Fumio | 2198.83 |
| 3 | White | Draw | Ishitani Shin-ichi | 2372.33 |
| 4 | White | Loss | Inoue Fumiya | 2360.14 |
| 56 Meijinsen Tournament | ||||
| Date | 2018-09-17 | Rating | 2527.08 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kuga Akio | 2361.98 |
| 2 | Black | Loss | Matsuura Hiroshi | 2312.27 |
| 3 | White | Win | Okabe Hiroshi | 2650.32 |
| 5 | Black | Win | Kawamura Norihiko | 2606.06 |
| 6 | Black | Loss | Ishitani Shin-ichi | 2374.44 |
| 7 | Black | Loss | Kamiya Shunsuke | 2742.98 |
| 8 | White | Loss | Nakamura Shigeru | 2933.23 |
| 9 | White | Win | Hasegawa Kazuto | 2536.23 |
| 35 Kanto Championship | ||||
| Date | 2018-07-16 | Rating | 2529.36 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Loss | Sato Kiyotomi | 2398.99 |
| 5 | White | Win | Iwano Fumio | 2202.36 |
| 6 | White | Win | Fujikawa Masaki | 2066.82 |
| 56 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2018-06-25 | Rating | 2530.88 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2245.24 |
| 2 | Black | Win | Sato Kiyotomi | 2399.44 |
| 3 | White | Loss | Ono Takayuki | 2342.11 |
| 56 Meijinsen Qualification Kanto area 1st round | ||||
| Date | 2018-05-13 | Rating | 2534.83 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mitsumori Masao | 2287.94 |
| 2 | Black | Win | Iwano Fumio | 2210.28 |
| 3 | Black | Win | Maruta Hiroki | 2114.19 |
| 4 | White | Win | Sato Kiyotomi | 2399.12 |
| 12th Team World Championship | ||||
| Date | 2018-05-05 | Rating | 2535.73 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Lillemaa Argo | 2151.21 |
| 2 | Black | Win | Purk Andry | 2590.83 |
| 4 | White | Win | Kachaev Denis | 2493.12 |
| 5 | Black | Win | Nikonov Konstantin | 2634.76 |
| 6 | Black | Win | Liu Yang | 2573.09 |
| 7 | White | Win | Lavrik-Karmazin Maksim | 2437.66 |
| 8 | White | Draw | Artemyev Sergey | 2513.66 |
| 9 | Black | Loss | Liu Yang | 2573.09 |
| 10 | White | Loss | Purk Andry | 2590.83 |
| 13th All Japan Championship | ||||
| Date | 2018-01-28 | Rating | 2533.88 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Ono Takayuki | 2336.51 |
| 2 | White | Loss | Ishitani Shin-ichi | 2367.16 |
| 3 | White | Loss | Miyamoto Syunju | 2213.84 |
| 5 | White | Win | Sato Kiyotomi | 2393.77 |
| 6 | Black | Win | Maruta Hiroki | 2107.73 |
| 18 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2017-12-17 | Rating | 2539.17 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Sato Kiyotomi | 2396.19 |
| 2 | Black | Win | Miyamoto Syunju | 2217.58 |
| 3 | Black | Loss | Nakamura Shigeru | 2904.41 |
| 4 | Black | Loss | Okabe Hiroshi | 2665.63 |
| 5 | White | Win | Kusajima Masato | 2244.83 |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 2546.13 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koyama Akihiro | 1930.79 |
| 2 | White | Draw | Okabe Hiroshi | 2667.19 |
| 3 | Black | Win | Ono Takayuki | 2332.51 |
| 4 | White | Win | Kusajima Masato | 2242.60 |
| World Championship BT | ||||
| Date | 2017-08-12 | Rating | 2554.95 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Rahumägi Brenet | 2283.25 |
| 2 | Black | Win | Sun In | 2392.33 |
| 3 | Black | Draw | Liu Yang | 2604.11 |
| 4 | Black | Win | Lan Zhiren | 2586.71 |
| 5 | Black | Win | Yang Yu-Hsiung | 2391.03 |
| 6 | Black | Loss | Tang Kai Lam | 2714.24 |
| 7 | Black | Win | Topkin Georg-Romet | 2458.89 |
| 8 | White | Win | Huang Yen-Hua | 2406.64 |
| 9 | Black | Loss | Okabe Hiroshi | 2667.63 |
| World Championship QT | ||||
| Date | 2017-08-05 | Rating | 2555.00 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Rahumägi Brenet | 2283.16 |
| 2 | White | Win | Sushkov Vladimir | 2826.54 |
| 3 | Black | Loss | Lan Zhiren | 2586.12 |
| 4 | Black | Loss | Mei Fan | 2636.04 |
| 5 | White | Draw | Okabe Hiroshi | 2667.75 |
| 6 | Black | Win | Kim Su Chan | 2270.63 |
| 7 | Black | Win | Lu Wei-Yuan | 2545.28 |
| 55 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2017-06-11 | Rating | 2551.39 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tomobe Katsuhiro | 2121.05 |
| 2 | White | Loss | Tamada Yoichi | 2490.48 |
| 3 | White | Loss | Ono Takayuki | 2329.99 |
| 4 | Black | Win | Miyamoto Syunju | 2212.98 |
| 5 | Black | Loss | Sato Kiyotomi | 2423.16 |
| 12th All Japan Championship | ||||
| Date | 2017-03-26 | Rating | 2556.89 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kusajima Masato | 2236.21 |
| 2 | Black | Loss | Nakamura Shigeru | 2907.13 |
| 3 | Black | Win | Ishitani Shin-ichi | 2351.16 |
| 4 | Black | Win | Nakayama Tomoharu | 2744.00 |
| 5 | Black | Loss | Kamiya Shunsuke | 2728.34 |
| 6 | White | Loss | Tachi Masaya | 2489.30 |
| 20 New Year (Mikami) Cup | ||||
| Date | 2017-01-22 | Rating | 2560.77 | |
| Round | Color | Result | Opponent | |
| S2 | Black | Win | Sato Kiyotomi | 2440.47 |
| S3 | Black | Loss | Nakamura Shigeru | 2905.53 |
| S4 | Black | Win | Ishitani Shin-ichi | 2351.33 |
| S5 | Black | Loss | Okabe Hiroshi | 2668.34 |
| 17 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2016-11-23 | Rating | 2564.06 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1899.20 |
| 2 | Black | Loss | Okabe Hiroshi | 2665.00 |
| 3 | Black | Win | Iwano Fumio | 2225.12 |
| 4 | White | Win | Ishitani Shin-ichi | 2356.18 |
| 54 Meijinsen Tournament | ||||
| Date | 2016-09-19 | Rating | 2567.52 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Matsuura Hiroshi | 2320.50 |
| 2 | Black | Loss | Kamiya Shunsuke | 2703.59 |
| 3 | White | Draw | Hasegawa Kazuto | 2588.70 |
| 4 | White | Draw | Iio Yoshihiro | 2508.10 |
| 5 | Black | Win | Tanaka Toshiki | 2405.26 |
| 6 | Black | Draw | Nakayama Tomoharu | 2729.08 |
| 7 | Black | Draw | Maruyama Yasushi | 2249.85 |
| 8 | Black | Win | Kuga Akio | 2323.15 |
| 9 | White | Loss | Okabe Hiroshi | 2668.54 |
| 33 Kanto Championship | ||||
| Date | 2016-07-31 | Rating | 2570.92 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kato Yasuhiro | 2019.90 |
| 2 | Black | Loss | Nakamura Shigeru | 2897.63 |
| 3 | Black | Loss | Okabe Hiroshi | 2671.73 |
| 4 | Black | Win | Nakamura Souta | 2233.54 |
| 5 | Black | Draw | Nakayama Tomoharu | 2727.32 |
| 6 | Black | Draw | Ishitani Shin-ichi | 2348.00 |
| 54 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2016-06-12 | Rating | 2575.70 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2223.86 |
| 2 | Black | Win | Kamiya Shunsuke | 2678.13 |
| 3 | White | Win | Tamada Yoichi | 2516.60 |
| 4 | Black | Draw | Mitsumori Masao | 2305.48 |
| 5 | White | Draw | Okabe Hiroshi | 2673.64 |
| 19 Mikami Cup | ||||
| Date | 2016-03-13 | Rating | 2577.92 | |
| Round | Color | Result | Opponent | |
| S1 | White | Win | Ishitani Shin-ichi | 2351.89 |
| S2 | Black | Loss | Nakamura Shigeru | 2886.39 |
| S3 | White | Win | Kusajima Masato | 2222.27 |
| S4 | Black | Loss | Okabe Hiroshi | 2671.57 |
| 16th Kanto Renju Emperor Tournament Final | ||||
| Date | 2016-02-14 | Rating | 2578.98 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Nakayama Tomoharu | 2726.16 |
| 2 | White | Loss | Nakayama Tomoharu | 2726.16 |
| 11th All Japan Championship | ||||
| Date | 2016-01-11 | Rating | 2581.79 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2086.08 |
| 2 | Black | Win | Nakamura Souta | 2251.16 |
| 3 | Black | Win | Okabe Hiroshi | 2668.69 |
| 4 | Black | Loss | Nakayama Tomoharu | 2724.42 |
| 5 | White | Loss | Sato Kiyotomi | 2477.12 |
| 6 | White | Draw | Tamada Yoichi | 2521.20 |
| 16 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2015-12-13 | Rating | 2584.68 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sato Kiyotomi | 2477.00 |
| 2 | White | Win | Ono Takayuki | 2293.02 |
| 3 | Black | Loss | Okabe Hiroshi | 2668.77 |
| 4 | Black | Draw | Nakayama Tomoharu | 2722.59 |
| 5 | White | Win | Nakamura Shigeru | 2873.72 |
| 16 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2015-11-15 | Rating | 2585.08 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ishitani Shin-ichi | 2354.62 |
| 2 | Black | Win | Sato Kiyotomi | 2475.07 |
| 3 | Black | Win | Okabe Hiroshi | 2669.72 |
| 4 | Black | Win | Ono Takayuki | 2293.61 |
| 53 Meijinsen Tournament | ||||
| Date | 2015-09-22 | Rating | 2580.49 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hasegawa Kazuto | 2615.99 |
| 2 | Black | Win | Oosumi Yuuki | 2730.91 |
| 3 | White | Win | Ishitani Shin-ichi | 2354.15 |
| 4 | Black | Draw | Nakayama Tomoharu | 2716.12 |
| 5 | White | Loss | Kawamura Norihiko | 2576.88 |
| 6 | White | Loss | Tamada Yoichi | 2529.17 |
| 7 | Black | Draw | Iio Yoshihiro | 2487.75 |
| 8 | White | Win | Matsuura Hiroshi | 2347.99 |
| 9 | Black | Draw | Okabe Hiroshi | 2672.04 |
| World Championship BT | ||||
| Date | 2015-08-12 | Rating | 2577.67 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Huang Xiuyi | 2149.35 |
| 2 | Black | Loss | Miyagawa Junzo | 2205.23 |
| 3 | Black | Win | Topkin Georg-Romet | 2290.81 |
| 4 | Black | Win | Wang Chih-Kung | 2310.19 |
| 5 | Black | Loss | Sirategyan Karen | 2388.23 |
| 6 | Black | Win | Ishitani Shin-ichi | 2356.75 |
| 7 | Black | Win | Lavrik-Karmazin Maksim | 2240.23 |
| 8 | White | Win | Mano Yoshihisa | 2319.30 |
| 9 | White | Draw | Nakayama Tomoharu | 2712.51 |
| World Championship QT | ||||
| Date | 2015-08-05 | Rating | 2577.46 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Topkin Georg-Romet | 2289.48 |
| 2 | Black | Win | Nakayama Tomoharu | 2711.37 |
| 3 | Black | Loss | Kamiya Shunsuke | 2651.95 |
| 4 | White | Draw | Wang Qingqing | 2587.15 |
| 5 | Black | Win | Huang Yen-Hua | 2420.94 |
| 6 | Black | Loss | Epifanov Dmitry | 2656.26 |
| 7 | Black | Win | Lin Liu-Min | 2523.52 |
| Kanto Championship | ||||
| Date | 2015-07-20 | Rating | 2576.04 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2073.17 |
| 2 | Black | Win | Nakamura Shigeru | 2859.52 |
| 3 | Black | Draw | Okabe Hiroshi | 2679.20 |
| 4 | White | Win | Iwano Fumio | 2212.36 |
| 5 | Black | Loss | Nakayama Tomoharu | 2710.36 |
| 6 | Black | Win | Zhao Jiadong | 2090.64 |
| 53 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2015-06-14 | Rating | 2570.48 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Tamada Yoichi | 2534.81 |
| 2 | Black | Win | Sato Kiyotomi | 2456.31 |
| 3 | White | Win | Ono Takayuki | 2293.21 |
| 5 | Black | Draw | Kamiya Shunsuke | 2640.70 |
| 6 | White | Win | Nakamura Souta | 2242.10 |
| 53 Meijinsen Qualification East Japan area 1st round | ||||
| Date | 2015-05-10 | Rating | 2564.58 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Mitsumori Masao | 2288.55 |
| 2 | Black | Win | Iwano Fumio | 2208.49 |
| 3 | Black | Win | Nakamura Souta | 2240.11 |
| 4 | White | Loss | Kamiya Shunsuke | 2635.16 |
| 10th All Japan Championship | ||||
| Date | 2015-03-29 | Rating | 2557.45 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2059.94 |
| 2 | White | Loss | Kamiya Shunsuke | 2625.79 |
| 3 | Black | Win | Kato Yasuhiro | 2035.24 |
| 4 | Black | Win | Mitsumori Masao | 2287.77 |
| 5 | Black | Loss | Ishitani Shin-ichi | 2380.45 |
| 6 | Black | Win | Tanizaki Ryusuke | 2161.52 |
| 12 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2011-10-23 | Rating | 2416.25 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Oosumi Yuuki | 2728.69 |
| 2 | White | Win | Suzuki Rin | 1966.55 |
| 3 | White | Loss | Isobe Taizan | 2383.75 |
| 4 | White | Loss | Fukui Nobuhiro | 2435.13 |
| 49 Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2011-06-12 | Rating | 2412.05 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Isobe Taizan | 2375.53 |
| 2 | Black | Win | Kudomi Takahiro | 2376.71 |
| 3 | Black | Loss | Nakayama Tomoharu | 2517.73 |
| 4 | Black | Win | Ono Takayuki | 2364.19 |
| ex | Black | Loss | Nakayama Tomoharu | 2517.73 |
| 28th Kanto Shineisen Tournament | ||||
| Date | 2011-04-17 | Rating | 2411.85 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kon Akira | 1977.30 |
| 2 | Black | Win | Kamiya Shunsuke | 2387.18 |
| 3 | White | Win | Ozawa Tetsushi | 2061.12 |
| 4 | White | Loss | Nakayama Tomoharu | 2507.03 |
| 5 | Black | Win | Tomobe Katsuhiro | 2187.55 |
| 5 | White | Loss | Kamiya Shunsuke | 2387.18 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2411.74 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Kon Akira | 1971.90 |
| A2 | White | Loss | Iwano Fumio | 2107.99 |
| A3 | Black | Win | Matsuoka Teruo | 1959.22 |
| A4 | Black | Win | Kise Katsumi | 2494.38 |
| A5 | Black | Win | Isobe Seiji | 1994.10 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2411.39 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Yasuhiro | 2116.51 |
| 2 | White | Win | Gakumazawa Hideaki | 2115.62 |
| 3 | Black | Loss | Sato Kiyotomi | 2404.05 |
| 4 | White | Win | Miyagawa Junzo | 2182.41 |
| 5 | White | Draw | Maruyama Yasushi | 2226.54 |
| 6 | Black | Win | Ono Takayuki | 2371.92 |
| 46th Meijinsen Qualification East-Japan area 2nd round | ||||
| Date | 2008-07-13 | Rating | 2404.69 | |
| Round | Color | Result | Opponent | |
| White | Loss | Kawamura Norihiko | 2620.96 | |
| White | Loss | Sato Kiyotomi | 2404.08 | |
| White | Win | Arita Nobuyoshi | 2360.59 | |
| White | Loss | Isobe Taizan | 2388.70 | |
| Black | Win | Nagao Noriaki | 2243.85 | |
| 46th Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2008-06-15 | Rating | 2405.34 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Sato Kiyotomi | 2400.20 |
| 2 | White | Win | Tanno Yoshitaka | 2097.07 |
| 3 | Black | Win | Ono Takayuki | 2368.52 |
| 4 | Black | Win | Kudomi Takahiro | 2316.17 |
| 25th Kanto Shineisen Tournament | ||||
| Date | 2008-04-13 | Rating | 2399.95 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2082.08 |
| 2 | Black | Win | Watanabe Tatsuya | 2136.07 |
| 3 | White | Win | Tomobe Katsuhiro | 2056.08 |
| 4 | Black | Win | Iwano Fumio | 2158.62 |
| 5 | Black | Draw | Ono Takayuki | 2365.38 |
| 2nd All Japan Championship (WC Qualification) | ||||
| Date | 2007-03-25 | Rating | 2350.22 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kuramoto Hideharu | 1868.83 |
| 2 | Black | Loss | Yamaguchi Yusui | 2611.58 |
| 3 | Black | Loss | Iio Yoshihiro | 2490.43 |
| 4 | White | Win | Maruta Hiroki | 2007.79 |
| 5 | White | Win | Tanno Yoshitaka | 2104.26 |
| 6 | Black | Win | Ono Takayuki | 2321.39 |
| 10th Mikami Cup Tournament, A-class | ||||
| Date | 2007-01-28 | Rating | 2341.55 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Matsuoka Teruo | 1862.48 |
| 2 | White | Loss | Iwano Fumio | 2122.22 |
| 3 | Black | Win | Maruta Hiroki | 2004.64 |
| 4 | White | Win | Tomobe Katsuhiro | 2046.34 |
| 5 | Black | Win | Kobayashi Koichi | 2083.27 |
| 23rd Kanto Shinei Tournament | ||||
| Date | 2006-09-10 | Rating | 2322.54 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 1989.76 |
| 1 | Black | Win | Teshima Masakatsu | 1941.79 |
| 2 | Black | Loss | Tanizaki Ryusuke | 2107.64 |
| 3 | Black | Win | Matsuoka Teruo | 1847.10 |
| 4 | White | Win | Iwano Fumio | 2096.64 |
| 5 | White | Loss | Watanabe Tatsuya | 2118.07 |
| Meijin-sen Qual, East Japan area 1st round | ||||
| Date | 2006-06-18 | Rating | 2317.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2101.50 |
| 2 | White | Win | Mitsumori Masao | 2238.29 |
| 3 | Black | Win | Kudomi Takahiro | 2271.59 |
| 4 | Black | Loss | Kamemoto Daichi | 2178.70 |
| 23rd Kanto Championship | ||||
| Date | 2006-05-21 | Rating | 2315.21 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kawamura Norihiko | 2632.57 |
| 2 | White | Win | Tanizaki Ryusuke | 2097.54 |
| 3 | Black | Win | Kudomi Takahiro | 2270.45 |
| 4 | White | Win | Isobe Taizan | 2395.10 |
| 5 | White | Loss | Nakamura Shigeru | 2809.73 |
| 46th Suisei-sen tournament final round | ||||
| Date | 2006-04-16 | Rating | 2309.42 | |
| Round | Color | Result | Opponent | |
| White | Win | Itami Yoshiyuki | 2146.64 | |
| White | Win | Nagao Noriaki | 2208.80 | |
| White | Loss | Kato Yasuhiro | 2027.99 | |
| White | Win | Hara Masao | 2059.73 | |
| Black | Loss | Ono Takayuki | 2288.16 | |
| 1st All Japan Championship | ||||
| Date | 2006-03-26 | Rating | 2306.78 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tadokoro Hosai | 1918.44 |
| 2 | Black | Loss | Isobe Taizan | 2405.42 |
| 3 | Black | Loss | Tanizaki Ryusuke | 2096.11 |
| 4 | White | Win | Itami Yoshiyuki | 2148.65 |
| 5 | Black | Win | Sato Kiyotomi | 2386.15 |
| 6 | White | Win | Miyoshi Takeo | 2252.65 |
| 46th Suisei-sen Tournament - 1st round | ||||
| Date | 2006-03-12 | Rating | 2304.73 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujikawa Masaki | 2027.38 |
| 2 | White | Win | Tadokoro Hosai | 1918.19 |
| 3 | White | Loss | Nagao Noriaki | 2210.33 |
| 4 | White | Win | Tomobe Katsuhiro | 2070.74 |
| 9th Mikami Cup - A Class | ||||
| Date | 2006-01-29 | Rating | 2299.05 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Iwano Fumio | 2066.85 |
| 2 | White | Win | Teshima Masakatsu | 1945.68 |
| 3 | White | Loss | Ono Takayuki | 2286.02 |
| 4 | White | Win | Nakata Shinsuke | 1957.44 |
| 5 | Black | Win | Watanabe Tatsuya | 2114.93 |
| 37th Kyoto Classified - group 1 | ||||
| Date | 2005-11-13 | Rating | 2287.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ozawa Tetsushi | 2004.51 |
| 2 | White | Win | Itami Yoshiyuki | 2162.03 |
| 3 | White | Loss | Oosumi Yuuki | 2385.71 |
| 4 | White | Win | Hayashi Koji | 1984.05 |
| 5 | Black | Win | Ono Takayuki | 2279.26 |
| 6 | White | Loss | Shinoda Kiyoshi | 2324.71 |
| 6th Kanto Renju Emperor Tournament - Semifinal | ||||
| Date | 2005-10-23 | Rating | 2283.98 | |
| Round | Color | Result | Opponent | |
| White | Loss | Yamaguchi Yusui | 2570.79 | |
| White | Loss | Okabe Hiroshi | 2563.42 | |
| White | Loss | Isobe Taizan | 2429.39 | |
| White | Loss | Kamemoto Daichi | 2159.39 | |
| White | Win | Sato Kiyotomi | 2373.13 | |
| 6th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2005-10-22 | Rating | 2283.86 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Koyama Masayuki | 1721.77 |
| 2 | White | Loss | Sato Kiyotomi | 2373.14 |
| 3 | White | Win | Teshima Masakatsu | 1946.18 |
| 4 | Black | Win | Nakata Shinsuke | 1951.75 |
| 22nd Kanto Shineisen Tournament | ||||
| Date | 2005-09-11 | Rating | 2279.10 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Teshima Masakatsu | 1946.32 |
| 2 | White | Win | Tadokoro Hosai | 1917.52 |
| 3 | Black | Win | Tomobe Katsuhiro | 2058.85 |
| 4 | Black | Loss | Arita Nobuyoshi | 2316.24 |
| 5 | Black | Win | Kamemoto Daichi | 2151.56 |
| 43rd Meijinsen Qualification: East Japan 1st round | ||||
| Date | 2005-06-12 | Rating | 2266.28 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2135.03 |
| 2 | Black | Loss | Kudomi Takahiro | 2283.70 |
| 3 | White | Loss | Arita Nobuyoshi | 2301.75 |
| 4 | White | Win | Ohno Syunzo | 2045.32 |
| 22nd Kanto Championship | ||||
| Date | 2005-05-22 | Rating | 2263.92 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Mitsumori Masao | 2247.54 |
| 2 | White | Loss | Yamaguchi Yusui | 2545.50 |
| 3 | White | Win | Kudomi Takahiro | 2284.35 |
| 4 | Black | Loss | Maruta Koji | 2138.55 |
| 5 | White | Loss | Sato Kiyotomi | 2370.70 |
| 45th Suisei-sen Tournament | ||||
| Date | 2005-03-20 | Rating | 2257.71 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Muramatsu Yasuhiro | 1684.70 |
| 2 | White | Win | Arita Nobuyoshi | 2281.60 |
| 3 | White | Win | Sano Hiroyuki | 2130.33 |
| 4 | Black | Win | Kobayashi Koichi | 2080.89 |
| 8th Mikami Cup - A Class | ||||
| Date | 2005-01-23 | Rating | 2247.36 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Arita Nobuyoshi | 2271.45 |
| 2 | Black | Win | Nagumo Natsuhiko | 2048.93 |
| 3 | Black | Win | Kato Yasuhiro | 2012.82 |
| 4 | White | Loss | Nagao Noriaki | 2228.93 |
| 5 | Black | Win | Sato Kiyotomi | 2352.52 |
| 5th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2004-11-28 | Rating | 2234.51 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Mitsumori Masao | 2235.29 |
| 2 | Black | Loss | Tomobe Katsuhiro | 2026.57 |
| 3 | Black | Win | Mao Richu | 1767.63 |
| 4 | Black | Loss | Iwano Fumio | 2037.37 |
| 21st Kanto Shineisen Tournament | ||||
| Date | 2004-09-12 | Rating | 2228.04 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Shibata Satoru | 1696.23 |
| 2 | Black | Loss | Sato Kiyotomi | 2346.70 |
| 3 | Black | Win | Sato Takuma | 2152.68 |
| 4 | White | Draw | Tashiro Yuichi | 2269.64 |
| 5 | Black | Win | Hara Masao | 2060.47 |
| 7th Mikami Cup - A class | ||||
| Date | 2004-01-25 | Rating | 2201.13 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Win | Kawabe Tatsuya | 1873.80 |
| 5 | Black | Win | Itami Yoshiyuki | 2141.33 |
| 20th Kanto Shineisen Tournament | ||||
| Date | 2003-09-21 | Rating | 2181.34 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kato Yasuhiro | 2031.70 |
| 2 | White | Win | Maruta Hiroki | 1935.62 |
| 3 | White | Loss | Sato Takuma | 2127.26 |
| 4 | White | Win | Sasaki Miyu | 1932.82 |
| 5 | White | Loss | Itami Yoshiyuki | 2143.44 |