Koyama Jun (小山純)
Place: Tokyo, Japan
Rating: 2571.40, Std: 176.81, Rank: 66
First game: 2003-09-21, Last game: 2022-05-22
Top rating: 2637.41 (2015-11-15)
Games: 349, Wins: 200, Draws: 35, Losses: 114
Gy1: 0, Gy2: 0, Gy5: 31
| 60th Meijinsen Qualification Kanto area 1st round | ||||
|---|---|---|---|---|
| Date | 2022-05-22 | Rating | 2571.40 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Tomobe Katsuhiro | 2094.45 |
| 2 | White | Win | Maruta Hiroki | 2187.41 |
| 3 | Black | Draw | Fujita Maiko | 2400.75 |
| 4 | Black | Draw | Yokoyama Shota | 2434.37 |
| 57 Meijinsen Tournament | ||||
| Date | 2019-09-16 | Rating | 2599.24 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Inoue Fumiya | 2408.70 |
| 2 | White | Loss | Kamiya Shunsuke | 2814.02 |
| 3 | Black | Loss | Kawamura Norihiko | 2674.27 |
| 4 | White | Win | Matsuura Hiroshi | 2362.17 |
| 5 | Black | Loss | Nakayama Tomoharu | 2816.60 |
| 6 | White | Loss | Kawano Takahisa | 2449.43 |
| 7 | White | Loss | Hasegawa Kazuto | 2604.77 |
| 8 | White | Win | Okabe Hiroshi | 2716.12 |
| 9 | Black | Win | Ishitani Shin-ichi | 2373.11 |
| World Championship 2019, AT | ||||
| Date | 2019-08-10 | Rating | 2605.26 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Mei Fan | 2695.35 |
| 2 | Black | Win | Oll Aivo | 2737.77 |
| 3 | Black | Win | Inoue Fumiya | 2412.91 |
| 4 | Black | Win | Epifanov Dmitry | 2663.38 |
| 5 | Black | Loss | Nakayama Tomoharu | 2811.18 |
| 6 | Black | Win | Okabe Hiroshi | 2711.56 |
| 7 | Black | Draw | Kamiya Shunsuke | 2811.25 |
| 8 | Black | Draw | Gardström Petter | 2690.50 |
| 9 | White | Loss | Fedotov Denis | 2673.73 |
| 10 | White | Loss | Cao Dong | 2771.79 |
| 11 | Black | Loss | Sushkov Vladimir | 2834.03 |
| World Championship 2019, QT | ||||
| Date | 2019-08-02 | Rating | 2605.18 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sandstrom Richard | 2367.27 |
| 2 | White | Win | Li Xiaoqing | 2647.91 |
| 3 | Black | Loss | Mesila Villem | 2661.74 |
| 4 | Black | Win | Wai Chan Keong | 2775.97 |
| 5 | Black | Draw | Fedotov Denis | 2676.36 |
| 6 | White | Loss | Gardström Petter | 2692.23 |
| 7 | White | Win | Topkin Georg-Romet | 2620.06 |
| 57 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2019-06-23 | Rating | 2598.94 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Hiroki | 2176.76 |
| 2 | Black | Win | Maruta Koji | 2132.39 |
| 3 | White | Win | Inoue Fumiya | 2416.50 |
| 4 | Black | Win | Kusajima Masato | 2253.13 |
| 5 | White | Win | Ono Takayuki | 2389.47 |
| 14th All Japan Championship | ||||
| Date | 2019-03-31 | Rating | 2578.79 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Fujita Maiko | 2279.45 |
| 2 | Black | Win | Chigira Makoto | 2085.13 |
| 3 | White | Draw | Inoue Fumiya | 2417.37 |
| 4 | White | Win | Ono Takayuki | 2388.45 |
| 5 | Black | Loss | Nakamura Shigeru | 2986.32 |
| 6 | Black | Loss | Okabe Hiroshi | 2691.23 |
| 19 Renju Emperor Tournament Kanto area 1st round | ||||
| Date | 2018-10-21 | Rating | 2561.48 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1918.87 |
| 2 | White | Loss | Iwano Fumio | 2238.72 |
| 3 | White | Draw | Ishitani Shin-ichi | 2417.30 |
| 4 | White | Loss | Inoue Fumiya | 2396.36 |
| 56 Meijinsen Tournament | ||||
| Date | 2018-09-17 | Rating | 2564.47 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kuga Akio | 2415.71 |
| 2 | Black | Loss | Matsuura Hiroshi | 2351.39 |
| 3 | White | Win | Okabe Hiroshi | 2693.68 |
| 5 | Black | Win | Kawamura Norihiko | 2656.72 |
| 6 | Black | Loss | Ishitani Shin-ichi | 2420.22 |
| 7 | Black | Loss | Kamiya Shunsuke | 2790.85 |
| 8 | White | Loss | Nakamura Shigeru | 2991.57 |
| 9 | White | Win | Hasegawa Kazuto | 2570.95 |
| 35 Kanto Championship | ||||
| Date | 2018-07-16 | Rating | 2567.53 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Loss | Sato Kiyotomi | 2435.90 |
| 5 | White | Win | Iwano Fumio | 2240.23 |
| 6 | White | Win | Fujikawa Masaki | 2092.89 |
| 56 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2018-06-25 | Rating | 2569.69 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2301.97 |
| 2 | Black | Win | Sato Kiyotomi | 2436.56 |
| 3 | White | Loss | Ono Takayuki | 2383.21 |
| 56 Meijinsen Qualification Kanto area 1st round | ||||
| Date | 2018-05-13 | Rating | 2575.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mitsumori Masao | 2325.45 |
| 2 | Black | Win | Iwano Fumio | 2249.95 |
| 3 | Black | Win | Maruta Hiroki | 2146.81 |
| 4 | White | Win | Sato Kiyotomi | 2435.88 |
| Team World Championship 2018 | ||||
| Date | 2018-05-05 | Rating | 2576.61 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Lillemaa Argo | 2190.50 |
| 2 | Black | Win | Purk Andry | 2628.88 |
| 4 | White | Win | Kachaev Denis | 2534.83 |
| 5 | Black | Win | Nikonov Konstantin | 2684.52 |
| 6 | Black | Win | Liu Yang | 2627.92 |
| 7 | White | Win | Lavrik-Karmazin Maksim | 2491.65 |
| 8 | White | Draw | Artemyev Sergey | 2568.17 |
| 9 | Black | Loss | Liu Yang | 2627.92 |
| 10 | White | Loss | Purk Andry | 2628.88 |
| 13th All Japan Championship | ||||
| Date | 2018-01-28 | Rating | 2572.44 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Ono Takayuki | 2376.80 |
| 2 | White | Loss | Ishitani Shin-ichi | 2410.43 |
| 3 | White | Loss | Miyamoto Syunju | 2264.15 |
| 5 | White | Win | Sato Kiyotomi | 2427.33 |
| 6 | Black | Win | Maruta Hiroki | 2139.55 |
| 18 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2017-12-17 | Rating | 2579.72 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Sato Kiyotomi | 2430.28 |
| 2 | Black | Win | Miyamoto Syunju | 2270.00 |
| 3 | Black | Loss | Nakamura Shigeru | 2953.00 |
| 4 | Black | Loss | Okabe Hiroshi | 2712.93 |
| 5 | White | Win | Kusajima Masato | 2298.41 |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 2589.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koyama Akihiro | 1958.35 |
| 2 | White | Draw | Okabe Hiroshi | 2714.55 |
| 3 | Black | Win | Ono Takayuki | 2372.03 |
| 4 | White | Win | Kusajima Masato | 2294.64 |
| World Championship 2017, BT | ||||
| Date | 2017-08-12 | Rating | 2601.01 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Rahumägi Brenet | 2323.78 |
| 2 | Black | Win | Sun In | 2427.51 |
| 3 | Black | Draw | Liu Yang | 2664.01 |
| 4 | Black | Win | Lan Zhiren | 2630.66 |
| 5 | Black | Win | Yang Yu-Hsiung | 2425.58 |
| 6 | Black | Loss | Tang Kai Lam | 2765.52 |
| 7 | Black | Win | Topkin Georg-Romet | 2518.34 |
| 8 | White | Win | Huang Yen-Hua | 2455.83 |
| 9 | Black | Loss | Okabe Hiroshi | 2714.14 |
| World Championship 2017, QT | ||||
| Date | 2017-08-05 | Rating | 2600.93 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Rahumägi Brenet | 2323.64 |
| 2 | White | Win | Sushkov Vladimir | 2868.41 |
| 3 | Black | Loss | Lan Zhiren | 2629.80 |
| 4 | Black | Loss | Mei Fan | 2689.38 |
| 5 | White | Draw | Okabe Hiroshi | 2714.24 |
| 6 | Black | Win | Kim Su Chan | 2302.35 |
| 7 | Black | Win | Lu Wei-Yuan | 2596.58 |
| 55 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2017-06-11 | Rating | 2594.44 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tomobe Katsuhiro | 2154.71 |
| 2 | White | Loss | Tamada Yoichi | 2532.14 |
| 3 | White | Loss | Ono Takayuki | 2370.03 |
| 4 | Black | Win | Miyamoto Syunju | 2267.07 |
| 5 | Black | Loss | Sato Kiyotomi | 2464.88 |
| 12th All Japan Championship | ||||
| Date | 2017-03-26 | Rating | 2601.15 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kusajima Masato | 2283.73 |
| 2 | Black | Loss | Nakamura Shigeru | 2959.96 |
| 3 | Black | Win | Ishitani Shin-ichi | 2387.98 |
| 4 | Black | Win | Nakayama Tomoharu | 2788.15 |
| 5 | Black | Loss | Kamiya Shunsuke | 2782.72 |
| 6 | White | Loss | Tachi Masaya | 2524.80 |
| 20 New Year (Mikami) Cup | ||||
| Date | 2017-01-22 | Rating | 2605.72 | |
| Round | Color | Result | Opponent | |
| S2 | Black | Win | Sato Kiyotomi | 2486.21 |
| S3 | Black | Loss | Nakamura Shigeru | 2958.37 |
| S4 | Black | Win | Ishitani Shin-ichi | 2388.07 |
| S5 | Black | Loss | Okabe Hiroshi | 2713.68 |
| 17 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2016-11-23 | Rating | 2609.47 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1927.26 |
| 2 | Black | Loss | Okabe Hiroshi | 2708.20 |
| 3 | Black | Win | Iwano Fumio | 2263.79 |
| 4 | White | Win | Ishitani Shin-ichi | 2394.75 |
| 54 Meijinsen Tournament | ||||
| Date | 2016-09-19 | Rating | 2613.51 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Matsuura Hiroshi | 2357.95 |
| 2 | Black | Loss | Kamiya Shunsuke | 2754.72 |
| 3 | White | Draw | Hasegawa Kazuto | 2634.41 |
| 4 | White | Draw | Iio Yoshihiro | 2556.01 |
| 5 | Black | Win | Tanaka Toshiki | 2438.34 |
| 6 | Black | Draw | Nakayama Tomoharu | 2772.34 |
| 7 | Black | Draw | Maruyama Yasushi | 2285.33 |
| 8 | Black | Win | Kuga Akio | 2360.34 |
| 9 | White | Loss | Okabe Hiroshi | 2712.80 |
| 33 Kanto Championship | ||||
| Date | 2016-07-31 | Rating | 2617.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kato Yasuhiro | 2036.72 |
| 2 | Black | Loss | Nakamura Shigeru | 2949.68 |
| 3 | Black | Loss | Okabe Hiroshi | 2717.04 |
| 4 | Black | Win | Nakamura Souta | 2270.11 |
| 5 | Black | Draw | Nakayama Tomoharu | 2771.33 |
| 6 | Black | Draw | Ishitani Shin-ichi | 2381.98 |
| 54 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2016-06-12 | Rating | 2624.53 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2263.84 |
| 2 | Black | Win | Kamiya Shunsuke | 2722.16 |
| 3 | White | Win | Tamada Yoichi | 2563.81 |
| 4 | Black | Draw | Mitsumori Masao | 2348.85 |
| 5 | White | Draw | Okabe Hiroshi | 2719.39 |
| 19 Mikami Cup | ||||
| Date | 2016-03-13 | Rating | 2627.07 | |
| Round | Color | Result | Opponent | |
| S1 | White | Win | Ishitani Shin-ichi | 2386.98 |
| S2 | Black | Loss | Nakamura Shigeru | 2935.80 |
| S3 | White | Win | Kusajima Masato | 2260.86 |
| S4 | Black | Loss | Okabe Hiroshi | 2715.31 |
| 16th Kanto Renju Emperor Tournament Final | ||||
| Date | 2016-02-14 | Rating | 2628.51 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Nakayama Tomoharu | 2774.96 |
| 2 | White | Loss | Nakayama Tomoharu | 2774.96 |
| 11th All Japan Championship | ||||
| Date | 2016-01-11 | Rating | 2632.54 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2117.53 |
| 2 | Black | Win | Nakamura Souta | 2297.78 |
| 3 | Black | Win | Okabe Hiroshi | 2710.29 |
| 4 | Black | Loss | Nakayama Tomoharu | 2773.42 |
| 5 | White | Loss | Sato Kiyotomi | 2532.37 |
| 6 | White | Draw | Tamada Yoichi | 2567.80 |
| 16 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2015-12-13 | Rating | 2636.78 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sato Kiyotomi | 2532.01 |
| 2 | White | Win | Ono Takayuki | 2320.58 |
| 3 | Black | Loss | Okabe Hiroshi | 2709.99 |
| 4 | Black | Draw | Nakayama Tomoharu | 2771.64 |
| 5 | White | Win | Nakamura Shigeru | 2918.98 |
| 16 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2015-11-15 | Rating | 2637.41 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ishitani Shin-ichi | 2389.48 |
| 2 | Black | Win | Sato Kiyotomi | 2529.13 |
| 3 | Black | Win | Okabe Hiroshi | 2710.90 |
| 4 | Black | Win | Ono Takayuki | 2321.46 |
| 53 Meijinsen Tournament | ||||
| Date | 2015-09-22 | Rating | 2630.90 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hasegawa Kazuto | 2668.18 |
| 2 | Black | Win | Oosumi Yuuki | 2768.86 |
| 3 | White | Win | Ishitani Shin-ichi | 2387.81 |
| 4 | Black | Draw | Nakayama Tomoharu | 2764.82 |
| 5 | White | Loss | Kawamura Norihiko | 2619.42 |
| 6 | White | Loss | Tamada Yoichi | 2578.27 |
| 7 | Black | Draw | Iio Yoshihiro | 2527.18 |
| 8 | White | Win | Matsuura Hiroshi | 2395.62 |
| 9 | Black | Draw | Okabe Hiroshi | 2713.22 |
| World Championship 2015, BT | ||||
| Date | 2015-08-12 | Rating | 2627.29 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Huang Xiuyi | 2184.57 |
| 2 | Black | Loss | Miyagawa Junzo | 2242.55 |
| 3 | Black | Win | Topkin Georg-Romet | 2333.25 |
| 4 | Black | Win | Wang Chih-Kung | 2337.54 |
| 5 | Black | Loss | Sirategyan Karen | 2436.27 |
| 6 | Black | Win | Ishitani Shin-ichi | 2390.50 |
| 7 | Black | Win | Lavrik-Karmazin Maksim | 2287.47 |
| 8 | White | Win | Mano Yoshihisa | 2358.82 |
| 9 | White | Draw | Nakayama Tomoharu | 2761.04 |
| World Championship 2015, QT | ||||
| Date | 2015-08-05 | Rating | 2627.12 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Topkin Georg-Romet | 2331.82 |
| 2 | Black | Win | Nakayama Tomoharu | 2759.64 |
| 3 | Black | Loss | Kamiya Shunsuke | 2700.91 |
| 4 | White | Draw | Wang Qingqing | 2622.52 |
| 5 | Black | Win | Huang Yen-Hua | 2471.62 |
| 6 | Black | Loss | Epifanov Dmitry | 2703.85 |
| 7 | Black | Win | Lin Liu-Min | 2564.21 |
| Kanto Championship | ||||
| Date | 2015-07-20 | Rating | 2625.41 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2099.88 |
| 2 | Black | Win | Nakamura Shigeru | 2901.07 |
| 3 | Black | Draw | Okabe Hiroshi | 2722.19 |
| 4 | White | Win | Iwano Fumio | 2246.70 |
| 5 | Black | Loss | Nakayama Tomoharu | 2758.86 |
| 6 | Black | Win | Zhao Jiadong | 2132.36 |
| 53 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2015-06-14 | Rating | 2618.17 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Tamada Yoichi | 2586.19 |
| 2 | Black | Win | Sato Kiyotomi | 2501.67 |
| 3 | White | Win | Ono Takayuki | 2320.07 |
| 5 | Black | Draw | Kamiya Shunsuke | 2687.76 |
| 6 | White | Win | Nakamura Souta | 2289.70 |
| 53 Meijinsen Qualification East Japan area 1st round | ||||
| Date | 2015-05-10 | Rating | 2610.45 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Mitsumori Masao | 2321.51 |
| 2 | Black | Win | Iwano Fumio | 2241.27 |
| 3 | Black | Win | Nakamura Souta | 2287.97 |
| 4 | White | Loss | Kamiya Shunsuke | 2681.98 |
| 10th All Japan Championship | ||||
| Date | 2015-03-29 | Rating | 2601.17 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2088.75 |
| 2 | White | Loss | Kamiya Shunsuke | 2671.10 |
| 3 | Black | Win | Kato Yasuhiro | 2057.59 |
| 4 | Black | Win | Mitsumori Masao | 2320.04 |
| 5 | Black | Loss | Ishitani Shin-ichi | 2420.38 |
| 6 | Black | Win | Tanizaki Ryusuke | 2197.31 |
| 12 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2011-10-23 | Rating | 2434.80 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Oosumi Yuuki | 2767.85 |
| 2 | White | Win | Suzuki Rin | 1987.97 |
| 3 | White | Loss | Isobe Taizan | 2418.36 |
| 4 | White | Loss | Fukui Nobuhiro | 2469.37 |
| 49 Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2011-06-12 | Rating | 2432.38 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Isobe Taizan | 2405.57 |
| 2 | Black | Win | Kudomi Takahiro | 2410.12 |
| 3 | Black | Loss | Nakayama Tomoharu | 2550.55 |
| 4 | Black | Win | Ono Takayuki | 2393.26 |
| ex | Black | Loss | Nakayama Tomoharu | 2550.55 |
| 28th Kanto Shineisen Tournament | ||||
| Date | 2011-04-17 | Rating | 2433.22 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kon Akira | 2004.43 |
| 2 | Black | Win | Kamiya Shunsuke | 2408.85 |
| 3 | White | Win | Ozawa Tetsushi | 2089.46 |
| 4 | White | Loss | Nakayama Tomoharu | 2539.17 |
| 5 | Black | Win | Tomobe Katsuhiro | 2226.53 |
| 5 | White | Loss | Kamiya Shunsuke | 2408.85 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2434.29 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Kon Akira | 1997.11 |
| A2 | White | Loss | Iwano Fumio | 2128.78 |
| A3 | Black | Win | Matsuoka Teruo | 1986.54 |
| A4 | Black | Win | Kise Katsumi | 2517.53 |
| A5 | Black | Win | Isobe Seiji | 2021.41 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2441.75 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Yasuhiro | 2145.35 |
| 2 | White | Win | Gakumazawa Hideaki | 2136.72 |
| 3 | Black | Loss | Sato Kiyotomi | 2431.40 |
| 4 | White | Win | Miyagawa Junzo | 2199.75 |
| 5 | White | Draw | Maruyama Yasushi | 2259.66 |
| 6 | Black | Win | Ono Takayuki | 2400.54 |
| 46th Meijinsen Qualification East-Japan area 2nd round | ||||
| Date | 2008-07-13 | Rating | 2439.19 | |
| Round | Color | Result | Opponent | |
| White | Loss | Kawamura Norihiko | 2654.04 | |
| White | Loss | Sato Kiyotomi | 2431.85 | |
| White | Win | Arita Nobuyoshi | 2390.42 | |
| White | Loss | Isobe Taizan | 2412.19 | |
| Black | Win | Nagao Noriaki | 2258.64 | |
| 46th Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2008-06-15 | Rating | 2440.83 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Sato Kiyotomi | 2426.43 |
| 2 | White | Win | Tanno Yoshitaka | 2119.71 |
| 3 | Black | Win | Ono Takayuki | 2396.84 |
| 4 | Black | Win | Kudomi Takahiro | 2336.63 |
| 25th Kanto Shineisen Tournament | ||||
| Date | 2008-04-13 | Rating | 2434.67 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2101.59 |
| 2 | Black | Win | Watanabe Tatsuya | 2154.01 |
| 3 | White | Win | Tomobe Katsuhiro | 2062.12 |
| 4 | Black | Win | Iwano Fumio | 2186.87 |
| 5 | Black | Draw | Ono Takayuki | 2393.15 |
| 2nd All Japan Championship (WC Qualification) | ||||
| Date | 2007-03-25 | Rating | 2374.24 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kuramoto Hideharu | 1886.20 |
| 2 | Black | Loss | Yamaguchi Yusui | 2646.40 |
| 3 | Black | Loss | Iio Yoshihiro | 2519.77 |
| 4 | White | Win | Maruta Hiroki | 2022.57 |
| 5 | White | Win | Tanno Yoshitaka | 2127.30 |
| 6 | Black | Win | Ono Takayuki | 2340.58 |
| 10th Mikami Cup Tournament, A-class | ||||
| Date | 2007-01-28 | Rating | 2363.30 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Matsuoka Teruo | 1872.90 |
| 2 | White | Loss | Iwano Fumio | 2141.41 |
| 3 | Black | Win | Maruta Hiroki | 2019.36 |
| 4 | White | Win | Tomobe Katsuhiro | 2053.74 |
| 5 | Black | Win | Kobayashi Koichi | 2096.72 |
| 23rd Kanto Shinei Tournament | ||||
| Date | 2006-09-10 | Rating | 2340.37 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2001.31 |
| 1 | Black | Win | Teshima Masakatsu | 1950.57 |
| 2 | Black | Loss | Tanizaki Ryusuke | 2124.95 |
| 3 | Black | Win | Matsuoka Teruo | 1851.87 |
| 4 | White | Win | Iwano Fumio | 2108.65 |
| 5 | White | Loss | Watanabe Tatsuya | 2133.37 |
| Meijin-sen Qual, East Japan area 1st round | ||||
| Date | 2006-06-18 | Rating | 2336.47 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2110.61 |
| 2 | White | Win | Mitsumori Masao | 2251.08 |
| 3 | Black | Win | Kudomi Takahiro | 2282.15 |
| 4 | Black | Loss | Kamemoto Daichi | 2204.98 |
| 23rd Kanto Championship | ||||
| Date | 2006-05-21 | Rating | 2334.13 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kawamura Norihiko | 2661.66 |
| 2 | White | Win | Tanizaki Ryusuke | 2111.82 |
| 3 | Black | Win | Kudomi Takahiro | 2280.57 |
| 4 | White | Win | Isobe Taizan | 2408.97 |
| 5 | White | Loss | Nakamura Shigeru | 2844.16 |
| 46th Suisei-sen tournament final round | ||||
| Date | 2006-04-16 | Rating | 2327.06 | |
| Round | Color | Result | Opponent | |
| White | Win | Itami Yoshiyuki | 2155.96 | |
| White | Win | Nagao Noriaki | 2219.50 | |
| White | Loss | Kato Yasuhiro | 2049.72 | |
| White | Win | Hara Masao | 2075.90 | |
| Black | Loss | Ono Takayuki | 2302.73 | |
| 1st All Japan Championship | ||||
| Date | 2006-03-26 | Rating | 2324.11 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tadokoro Hosai | 1928.73 |
| 2 | Black | Loss | Isobe Taizan | 2423.24 |
| 3 | Black | Loss | Tanizaki Ryusuke | 2110.76 |
| 4 | White | Win | Itami Yoshiyuki | 2158.87 |
| 5 | Black | Win | Sato Kiyotomi | 2408.44 |
| 6 | White | Win | Miyoshi Takeo | 2272.75 |
| 46th Suisei-sen Tournament - 1st round | ||||
| Date | 2006-03-12 | Rating | 2321.70 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujikawa Masaki | 2027.79 |
| 2 | White | Win | Tadokoro Hosai | 1928.20 |
| 3 | White | Loss | Nagao Noriaki | 2221.49 |
| 4 | White | Win | Tomobe Katsuhiro | 2089.08 |
| 9th Mikami Cup - A Class | ||||
| Date | 2006-01-29 | Rating | 2315.34 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Iwano Fumio | 2072.21 |
| 2 | White | Win | Teshima Masakatsu | 1955.68 |
| 3 | White | Loss | Ono Takayuki | 2301.93 |
| 4 | White | Win | Nakata Shinsuke | 1974.45 |
| 5 | Black | Win | Watanabe Tatsuya | 2131.86 |
| 37th Kyoto Classified - group 1 | ||||
| Date | 2005-11-13 | Rating | 2302.20 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ozawa Tetsushi | 2013.83 |
| 2 | White | Win | Itami Yoshiyuki | 2177.89 |
| 3 | White | Loss | Oosumi Yuuki | 2402.79 |
| 4 | White | Win | Hayashi Koji | 2004.06 |
| 5 | Black | Win | Ono Takayuki | 2294.27 |
| 6 | White | Loss | Shinoda Kiyoshi | 2344.71 |
| 6th Kanto Renju Emperor Tournament - Semifinal | ||||
| Date | 2005-10-23 | Rating | 2297.85 | |
| Round | Color | Result | Opponent | |
| White | Loss | Yamaguchi Yusui | 2593.63 | |
| White | Loss | Okabe Hiroshi | 2589.63 | |
| White | Loss | Isobe Taizan | 2455.71 | |
| White | Loss | Kamemoto Daichi | 2178.82 | |
| White | Win | Sato Kiyotomi | 2392.64 | |
| 6th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2005-10-22 | Rating | 2297.71 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Koyama Masayuki | 1727.65 |
| 2 | White | Loss | Sato Kiyotomi | 2392.68 |
| 3 | White | Win | Teshima Masakatsu | 1956.14 |
| 4 | Black | Win | Nakata Shinsuke | 1966.26 |
| 22nd Kanto Shineisen Tournament | ||||
| Date | 2005-09-11 | Rating | 2292.44 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Teshima Masakatsu | 1956.17 |
| 2 | White | Win | Tadokoro Hosai | 1925.00 |
| 3 | Black | Win | Tomobe Katsuhiro | 2073.42 |
| 4 | Black | Loss | Arita Nobuyoshi | 2340.87 |
| 5 | Black | Win | Kamemoto Daichi | 2167.95 |
| 43rd Meijinsen Qualification: East Japan 1st round | ||||
| Date | 2005-06-12 | Rating | 2277.18 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2150.10 |
| 2 | Black | Loss | Kudomi Takahiro | 2297.56 |
| 3 | White | Loss | Arita Nobuyoshi | 2322.95 |
| 4 | White | Win | Ohno Syunzo | 2072.80 |
| 22nd Kanto Championship | ||||
| Date | 2005-05-22 | Rating | 2274.46 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Mitsumori Masao | 2264.70 |
| 2 | White | Loss | Yamaguchi Yusui | 2560.23 |
| 3 | White | Win | Kudomi Takahiro | 2298.06 |
| 4 | Black | Loss | Maruta Koji | 2154.76 |
| 5 | White | Loss | Sato Kiyotomi | 2392.32 |
| 45th Suisei-sen Tournament | ||||
| Date | 2005-03-20 | Rating | 2267.32 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Muramatsu Yasuhiro | 1690.17 |
| 2 | White | Win | Arita Nobuyoshi | 2296.72 |
| 3 | White | Win | Sano Hiroyuki | 2133.23 |
| 4 | Black | Win | Kobayashi Koichi | 2091.73 |
| 8th Mikami Cup - A Class | ||||
| Date | 2005-01-23 | Rating | 2253.75 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Arita Nobuyoshi | 2284.35 |
| 2 | Black | Win | Nagumo Natsuhiko | 2054.58 |
| 3 | Black | Win | Kato Yasuhiro | 2022.39 |
| 4 | White | Loss | Nagao Noriaki | 2241.99 |
| 5 | Black | Win | Sato Kiyotomi | 2368.54 |
| 5th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2004-11-28 | Rating | 2236.22 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Mitsumori Masao | 2246.28 |
| 2 | Black | Loss | Tomobe Katsuhiro | 2029.19 |
| 3 | Black | Win | Mao Richu | 1771.17 |
| 4 | Black | Loss | Iwano Fumio | 2038.83 |
| 21st Kanto Shineisen Tournament | ||||
| Date | 2004-09-12 | Rating | 2228.77 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Shibata Satoru | 1707.11 |
| 2 | Black | Loss | Sato Kiyotomi | 2363.98 |
| 3 | Black | Win | Sato Takuma | 2167.65 |
| 4 | White | Draw | Tashiro Yuichi | 2286.17 |
| 5 | Black | Win | Hara Masao | 2068.72 |
| 7th Mikami Cup - A class | ||||
| Date | 2004-01-25 | Rating | 2193.25 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Win | Kawabe Tatsuya | 1878.32 |
| 5 | Black | Win | Itami Yoshiyuki | 2147.24 |
| 20th Kanto Shineisen Tournament | ||||
| Date | 2003-09-21 | Rating | 2165.84 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kato Yasuhiro | 2045.34 |
| 2 | White | Win | Maruta Hiroki | 1933.43 |
| 3 | White | Loss | Sato Takuma | 2135.57 |
| 4 | White | Win | Sasaki Miyu | 1936.27 |
| 5 | White | Loss | Itami Yoshiyuki | 2150.30 |