Koyama Jun (小山純)
Place: Tokyo, Japan
Rating: 2571.57, Std: 171.78, Rank: 67
First game: 2003-09-21, Last game: 2022-05-22
Top rating: 2637.84 (2015-11-15)
Games: 349, Wins: 200, Draws: 35, Losses: 114
Gy1: 0, Gy2: 4, Gy5: 36
| 60th Meijinsen Qualification Kanto area 1st round | ||||
|---|---|---|---|---|
| Date | 2022-05-22 | Rating | 2571.57 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Tomobe Katsuhiro | 2097.89 |
| 2 | White | Win | Maruta Hiroki | 2185.99 |
| 3 | Black | Draw | Fujita Maiko | 2398.09 |
| 4 | Black | Draw | Yokoyama Shota | 2436.64 |
| 57 Meijinsen Tournament | ||||
| Date | 2019-09-16 | Rating | 2599.46 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Inoue Fumiya | 2408.61 |
| 2 | White | Loss | Kamiya Shunsuke | 2815.41 |
| 3 | Black | Loss | Kawamura Norihiko | 2675.11 |
| 4 | White | Win | Matsuura Hiroshi | 2362.33 |
| 5 | Black | Loss | Nakayama Tomoharu | 2818.45 |
| 6 | White | Loss | Kawano Takahisa | 2450.32 |
| 7 | White | Loss | Hasegawa Kazuto | 2606.31 |
| 8 | White | Win | Okabe Hiroshi | 2716.53 |
| 9 | Black | Win | Ishitani Shin-ichi | 2372.38 |
| World Championship 2019, AT | ||||
| Date | 2019-08-10 | Rating | 2605.45 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Mei Fan | 2694.75 |
| 2 | Black | Win | Oll Aivo | 2738.68 |
| 3 | Black | Win | Inoue Fumiya | 2412.77 |
| 4 | Black | Win | Epifanov Dmitry | 2664.38 |
| 5 | Black | Loss | Nakayama Tomoharu | 2812.84 |
| 6 | Black | Win | Okabe Hiroshi | 2711.95 |
| 7 | Black | Draw | Kamiya Shunsuke | 2812.53 |
| 8 | Black | Draw | Gardström Petter | 2690.92 |
| 9 | White | Loss | Fedotov Denis | 2674.08 |
| 10 | White | Loss | Cao Dong | 2770.83 |
| 11 | Black | Loss | Sushkov Vladimir | 2835.24 |
| World Championship 2019, QT | ||||
| Date | 2019-08-02 | Rating | 2605.36 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sandstrom Richard | 2367.55 |
| 2 | White | Win | Li Xiaoqing | 2646.30 |
| 3 | Black | Loss | Mesila Villem | 2662.50 |
| 4 | Black | Win | Wai Chan Keong | 2777.53 |
| 5 | Black | Draw | Fedotov Denis | 2676.71 |
| 6 | White | Loss | Gardström Petter | 2692.65 |
| 7 | White | Win | Topkin Georg-Romet | 2620.55 |
| 57 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2019-06-23 | Rating | 2599.08 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Hiroki | 2175.82 |
| 2 | Black | Win | Maruta Koji | 2130.78 |
| 3 | White | Win | Inoue Fumiya | 2416.25 |
| 4 | Black | Win | Kusajima Masato | 2248.26 |
| 5 | White | Win | Ono Takayuki | 2388.99 |
| 14th All Japan Championship | ||||
| Date | 2019-03-31 | Rating | 2578.89 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Fujita Maiko | 2278.89 |
| 2 | Black | Win | Chigira Makoto | 2083.85 |
| 3 | White | Draw | Inoue Fumiya | 2417.02 |
| 4 | White | Win | Ono Takayuki | 2387.85 |
| 5 | Black | Loss | Nakamura Shigeru | 2987.43 |
| 6 | Black | Loss | Okabe Hiroshi | 2691.54 |
| 19 Renju Emperor Tournament Kanto area 1st round | ||||
| Date | 2018-10-21 | Rating | 2561.52 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1916.69 |
| 2 | White | Loss | Iwano Fumio | 2237.59 |
| 3 | White | Draw | Ishitani Shin-ichi | 2416.87 |
| 4 | White | Loss | Inoue Fumiya | 2395.97 |
| 56 Meijinsen Tournament | ||||
| Date | 2018-09-17 | Rating | 2564.50 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kuga Akio | 2416.20 |
| 2 | Black | Loss | Matsuura Hiroshi | 2351.52 |
| 3 | White | Win | Okabe Hiroshi | 2693.94 |
| 5 | Black | Win | Kawamura Norihiko | 2657.39 |
| 6 | Black | Loss | Ishitani Shin-ichi | 2419.82 |
| 7 | Black | Loss | Kamiya Shunsuke | 2791.73 |
| 8 | White | Loss | Nakamura Shigeru | 2992.60 |
| 9 | White | Win | Hasegawa Kazuto | 2571.80 |
| 35 Kanto Championship | ||||
| Date | 2018-07-16 | Rating | 2567.54 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Loss | Sato Kiyotomi | 2435.33 |
| 5 | White | Win | Iwano Fumio | 2239.22 |
| 6 | White | Win | Fujikawa Masaki | 2092.13 |
| 56 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2018-06-25 | Rating | 2569.69 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2297.73 |
| 2 | Black | Win | Sato Kiyotomi | 2435.97 |
| 3 | White | Loss | Ono Takayuki | 2382.57 |
| 56 Meijinsen Qualification Kanto area 1st round | ||||
| Date | 2018-05-13 | Rating | 2575.32 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mitsumori Masao | 2324.93 |
| 2 | Black | Win | Iwano Fumio | 2249.00 |
| 3 | Black | Win | Maruta Hiroki | 2145.92 |
| 4 | White | Win | Sato Kiyotomi | 2435.31 |
| Team World Championship 2018 | ||||
| Date | 2018-05-05 | Rating | 2576.63 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Lillemaa Argo | 2190.28 |
| 2 | Black | Win | Purk Andry | 2629.08 |
| 4 | White | Win | Kachaev Denis | 2535.27 |
| 5 | Black | Win | Nikonov Konstantin | 2685.05 |
| 6 | Black | Win | Liu Yang | 2627.62 |
| 7 | White | Win | Lavrik-Karmazin Maksim | 2491.98 |
| 8 | White | Draw | Artemyev Sergey | 2568.67 |
| 9 | Black | Loss | Liu Yang | 2627.62 |
| 10 | White | Loss | Purk Andry | 2629.08 |
| 13th All Japan Championship | ||||
| Date | 2018-01-28 | Rating | 2572.47 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Ono Takayuki | 2376.23 |
| 2 | White | Loss | Ishitani Shin-ichi | 2410.05 |
| 3 | White | Loss | Miyamoto Syunju | 2259.49 |
| 5 | White | Win | Sato Kiyotomi | 2426.79 |
| 6 | Black | Win | Maruta Hiroki | 2138.73 |
| 18 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2017-12-17 | Rating | 2579.79 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Sato Kiyotomi | 2429.74 |
| 2 | Black | Win | Miyamoto Syunju | 2265.46 |
| 3 | Black | Loss | Nakamura Shigeru | 2954.04 |
| 4 | Black | Loss | Okabe Hiroshi | 2713.37 |
| 5 | White | Win | Kusajima Masato | 2294.56 |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 2589.45 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koyama Akihiro | 1957.71 |
| 2 | White | Draw | Okabe Hiroshi | 2715.05 |
| 3 | Black | Win | Ono Takayuki | 2371.47 |
| 4 | White | Win | Kusajima Masato | 2290.87 |
| World Championship 2017, BT | ||||
| Date | 2017-08-12 | Rating | 2601.30 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Rahumägi Brenet | 2323.66 |
| 2 | Black | Win | Sun In | 2429.07 |
| 3 | Black | Draw | Liu Yang | 2664.30 |
| 4 | Black | Win | Lan Zhiren | 2631.04 |
| 5 | Black | Win | Yang Yu-Hsiung | 2430.12 |
| 6 | Black | Loss | Tang Kai Lam | 2767.20 |
| 7 | Black | Win | Topkin Georg-Romet | 2518.84 |
| 8 | White | Win | Huang Yen-Hua | 2460.78 |
| 9 | Black | Loss | Okabe Hiroshi | 2714.77 |
| World Championship 2017, QT | ||||
| Date | 2017-08-05 | Rating | 2601.23 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Rahumägi Brenet | 2323.52 |
| 2 | White | Win | Sushkov Vladimir | 2869.45 |
| 3 | Black | Loss | Lan Zhiren | 2630.19 |
| 4 | Black | Loss | Mei Fan | 2689.87 |
| 5 | White | Draw | Okabe Hiroshi | 2714.88 |
| 6 | Black | Win | Kim Su Chan | 2304.03 |
| 7 | Black | Win | Lu Wei-Yuan | 2600.52 |
| 55 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2017-06-11 | Rating | 2594.71 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tomobe Katsuhiro | 2154.17 |
| 2 | White | Loss | Tamada Yoichi | 2532.22 |
| 3 | White | Loss | Ono Takayuki | 2369.56 |
| 4 | Black | Win | Miyamoto Syunju | 2262.97 |
| 5 | Black | Loss | Sato Kiyotomi | 2464.48 |
| 12th All Japan Championship | ||||
| Date | 2017-03-26 | Rating | 2601.42 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kusajima Masato | 2280.41 |
| 2 | Black | Loss | Nakamura Shigeru | 2960.90 |
| 3 | Black | Win | Ishitani Shin-ichi | 2387.80 |
| 4 | Black | Win | Nakayama Tomoharu | 2789.06 |
| 5 | Black | Loss | Kamiya Shunsuke | 2783.58 |
| 6 | White | Loss | Tachi Masaya | 2525.50 |
| 20 New Year (Mikami) Cup | ||||
| Date | 2017-01-22 | Rating | 2606.01 | |
| Round | Color | Result | Opponent | |
| S2 | Black | Win | Sato Kiyotomi | 2485.97 |
| S3 | Black | Loss | Nakamura Shigeru | 2959.26 |
| S4 | Black | Win | Ishitani Shin-ichi | 2387.92 |
| S5 | Black | Loss | Okabe Hiroshi | 2714.19 |
| 17 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2016-11-23 | Rating | 2609.77 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1926.43 |
| 2 | Black | Loss | Okabe Hiroshi | 2708.68 |
| 3 | Black | Win | Iwano Fumio | 2263.28 |
| 4 | White | Win | Ishitani Shin-ichi | 2394.64 |
| 54 Meijinsen Tournament | ||||
| Date | 2016-09-19 | Rating | 2613.83 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Matsuura Hiroshi | 2358.08 |
| 2 | Black | Loss | Kamiya Shunsuke | 2755.42 |
| 3 | White | Draw | Hasegawa Kazuto | 2634.89 |
| 4 | White | Draw | Iio Yoshihiro | 2556.33 |
| 5 | Black | Win | Tanaka Toshiki | 2438.75 |
| 6 | Black | Draw | Nakayama Tomoharu | 2773.06 |
| 7 | Black | Draw | Maruyama Yasushi | 2285.22 |
| 8 | Black | Win | Kuga Akio | 2360.56 |
| 9 | White | Loss | Okabe Hiroshi | 2713.27 |
| 33 Kanto Championship | ||||
| Date | 2016-07-31 | Rating | 2618.24 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kato Yasuhiro | 2036.53 |
| 2 | Black | Loss | Nakamura Shigeru | 2950.48 |
| 3 | Black | Loss | Okabe Hiroshi | 2717.50 |
| 4 | Black | Win | Nakamura Souta | 2270.10 |
| 5 | Black | Draw | Nakayama Tomoharu | 2772.02 |
| 6 | Black | Draw | Ishitani Shin-ichi | 2381.94 |
| 54 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2016-06-12 | Rating | 2624.87 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2261.48 |
| 2 | Black | Win | Kamiya Shunsuke | 2722.79 |
| 3 | White | Win | Tamada Yoichi | 2563.96 |
| 4 | Black | Draw | Mitsumori Masao | 2348.56 |
| 5 | White | Draw | Okabe Hiroshi | 2719.84 |
| 19 Mikami Cup | ||||
| Date | 2016-03-13 | Rating | 2627.44 | |
| Round | Color | Result | Opponent | |
| S1 | White | Win | Ishitani Shin-ichi | 2387.06 |
| S2 | Black | Loss | Nakamura Shigeru | 2936.53 |
| S3 | White | Win | Kusajima Masato | 2258.73 |
| S4 | Black | Loss | Okabe Hiroshi | 2715.76 |
| 16th Kanto Renju Emperor Tournament Final | ||||
| Date | 2016-02-14 | Rating | 2628.90 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Nakayama Tomoharu | 2775.57 |
| 2 | White | Loss | Nakayama Tomoharu | 2775.57 |
| 11th All Japan Championship | ||||
| Date | 2016-01-11 | Rating | 2632.93 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2117.22 |
| 2 | Black | Win | Nakamura Souta | 2297.85 |
| 3 | Black | Win | Okabe Hiroshi | 2710.76 |
| 4 | Black | Loss | Nakayama Tomoharu | 2774.02 |
| 5 | White | Loss | Sato Kiyotomi | 2532.55 |
| 6 | White | Draw | Tamada Yoichi | 2568.00 |
| 16 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2015-12-13 | Rating | 2637.20 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sato Kiyotomi | 2532.18 |
| 2 | White | Win | Ono Takayuki | 2320.49 |
| 3 | Black | Loss | Okabe Hiroshi | 2710.46 |
| 4 | Black | Draw | Nakayama Tomoharu | 2772.24 |
| 5 | White | Win | Nakamura Shigeru | 2919.67 |
| 16 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2015-11-15 | Rating | 2637.84 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ishitani Shin-ichi | 2389.66 |
| 2 | Black | Win | Sato Kiyotomi | 2529.31 |
| 3 | Black | Win | Okabe Hiroshi | 2711.38 |
| 4 | Black | Win | Ono Takayuki | 2321.39 |
| 53 Meijinsen Tournament | ||||
| Date | 2015-09-22 | Rating | 2631.36 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hasegawa Kazuto | 2668.63 |
| 2 | Black | Win | Oosumi Yuuki | 2769.35 |
| 3 | White | Win | Ishitani Shin-ichi | 2388.03 |
| 4 | Black | Draw | Nakayama Tomoharu | 2765.40 |
| 5 | White | Loss | Kawamura Norihiko | 2619.90 |
| 6 | White | Loss | Tamada Yoichi | 2578.51 |
| 7 | Black | Draw | Iio Yoshihiro | 2527.55 |
| 8 | White | Win | Matsuura Hiroshi | 2395.76 |
| 9 | Black | Draw | Okabe Hiroshi | 2713.72 |
| World Championship 2015, BT | ||||
| Date | 2015-08-12 | Rating | 2627.77 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Huang Xiuyi | 2184.56 |
| 2 | Black | Loss | Miyagawa Junzo | 2242.83 |
| 3 | Black | Win | Topkin Georg-Romet | 2337.43 |
| 4 | Black | Win | Wang Chih-Kung | 2338.23 |
| 5 | Black | Loss | Sirategyan Karen | 2437.22 |
| 6 | Black | Win | Ishitani Shin-ichi | 2390.75 |
| 7 | Black | Win | Lavrik-Karmazin Maksim | 2288.88 |
| 8 | White | Win | Mano Yoshihisa | 2359.05 |
| 9 | White | Draw | Nakayama Tomoharu | 2761.62 |
| World Championship 2015, QT | ||||
| Date | 2015-08-05 | Rating | 2627.61 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Topkin Georg-Romet | 2336.15 |
| 2 | Black | Win | Nakayama Tomoharu | 2760.22 |
| 3 | Black | Loss | Kamiya Shunsuke | 2701.52 |
| 4 | White | Draw | Wang Qingqing | 2624.06 |
| 5 | Black | Win | Huang Yen-Hua | 2473.69 |
| 6 | Black | Loss | Epifanov Dmitry | 2704.47 |
| 7 | Black | Win | Lin Liu-Min | 2565.96 |
| Kanto Championship | ||||
| Date | 2015-07-20 | Rating | 2625.89 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2099.67 |
| 2 | Black | Win | Nakamura Shigeru | 2901.71 |
| 3 | Black | Draw | Okabe Hiroshi | 2722.69 |
| 4 | White | Win | Iwano Fumio | 2246.48 |
| 5 | Black | Loss | Nakayama Tomoharu | 2759.43 |
| 6 | Black | Win | Zhao Jiadong | 2131.73 |
| 53 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2015-06-14 | Rating | 2618.63 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Tamada Yoichi | 2586.43 |
| 2 | Black | Win | Sato Kiyotomi | 2501.83 |
| 3 | White | Win | Ono Takayuki | 2320.09 |
| 5 | Black | Draw | Kamiya Shunsuke | 2688.34 |
| 6 | White | Win | Nakamura Souta | 2289.74 |
| 53 Meijinsen Qualification East Japan area 1st round | ||||
| Date | 2015-05-10 | Rating | 2610.89 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Mitsumori Masao | 2321.39 |
| 2 | Black | Win | Iwano Fumio | 2241.08 |
| 3 | Black | Win | Nakamura Souta | 2288.01 |
| 4 | White | Loss | Kamiya Shunsuke | 2682.53 |
| 10th All Japan Championship | ||||
| Date | 2015-03-29 | Rating | 2601.60 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2088.58 |
| 2 | White | Loss | Kamiya Shunsuke | 2671.63 |
| 3 | Black | Win | Kato Yasuhiro | 2057.50 |
| 4 | Black | Win | Mitsumori Masao | 2319.94 |
| 5 | Black | Loss | Ishitani Shin-ichi | 2420.55 |
| 6 | Black | Win | Tanizaki Ryusuke | 2197.16 |
| 12 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2011-10-23 | Rating | 2434.94 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Oosumi Yuuki | 2767.95 |
| 2 | White | Win | Suzuki Rin | 1987.87 |
| 3 | White | Loss | Isobe Taizan | 2418.40 |
| 4 | White | Loss | Fukui Nobuhiro | 2469.48 |
| 49 Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2011-06-12 | Rating | 2432.49 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Isobe Taizan | 2405.60 |
| 2 | Black | Win | Kudomi Takahiro | 2410.14 |
| 3 | Black | Loss | Nakayama Tomoharu | 2550.65 |
| 4 | Black | Win | Ono Takayuki | 2393.33 |
| ex | Black | Loss | Nakayama Tomoharu | 2550.65 |
| 28th Kanto Shineisen Tournament | ||||
| Date | 2011-04-17 | Rating | 2433.33 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kon Akira | 2004.44 |
| 2 | Black | Win | Kamiya Shunsuke | 2408.93 |
| 3 | White | Win | Ozawa Tetsushi | 2089.43 |
| 4 | White | Loss | Nakayama Tomoharu | 2539.26 |
| 5 | Black | Win | Tomobe Katsuhiro | 2226.51 |
| 5 | White | Loss | Kamiya Shunsuke | 2408.93 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2434.38 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Kon Akira | 1997.11 |
| A2 | White | Loss | Iwano Fumio | 2128.76 |
| A3 | Black | Win | Matsuoka Teruo | 1986.50 |
| A4 | Black | Win | Kise Katsumi | 2517.64 |
| A5 | Black | Win | Isobe Seiji | 2021.40 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2441.79 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Yasuhiro | 2145.31 |
| 2 | White | Win | Gakumazawa Hideaki | 2136.36 |
| 3 | Black | Loss | Sato Kiyotomi | 2431.40 |
| 4 | White | Win | Miyagawa Junzo | 2199.77 |
| 5 | White | Draw | Maruyama Yasushi | 2259.63 |
| 6 | Black | Win | Ono Takayuki | 2400.58 |
| 46th Meijinsen Qualification East-Japan area 2nd round | ||||
| Date | 2008-07-13 | Rating | 2439.21 | |
| Round | Color | Result | Opponent | |
| White | Loss | Kawamura Norihiko | 2654.09 | |
| White | Loss | Sato Kiyotomi | 2431.86 | |
| White | Win | Arita Nobuyoshi | 2390.44 | |
| White | Loss | Isobe Taizan | 2412.21 | |
| Black | Win | Nagao Noriaki | 2258.65 | |
| 46th Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2008-06-15 | Rating | 2440.85 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Sato Kiyotomi | 2426.45 |
| 2 | White | Win | Tanno Yoshitaka | 2119.47 |
| 3 | Black | Win | Ono Takayuki | 2396.85 |
| 4 | Black | Win | Kudomi Takahiro | 2336.64 |
| 25th Kanto Shineisen Tournament | ||||
| Date | 2008-04-13 | Rating | 2434.69 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2101.57 |
| 2 | Black | Win | Watanabe Tatsuya | 2154.00 |
| 3 | White | Win | Tomobe Katsuhiro | 2062.09 |
| 4 | Black | Win | Iwano Fumio | 2186.85 |
| 5 | Black | Draw | Ono Takayuki | 2393.16 |
| 2nd All Japan Championship (WC Qualification) | ||||
| Date | 2007-03-25 | Rating | 2374.25 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kuramoto Hideharu | 1886.19 |
| 2 | Black | Loss | Yamaguchi Yusui | 2646.48 |
| 3 | Black | Loss | Iio Yoshihiro | 2519.84 |
| 4 | White | Win | Maruta Hiroki | 2022.56 |
| 5 | White | Win | Tanno Yoshitaka | 2127.19 |
| 6 | Black | Win | Ono Takayuki | 2340.60 |
| 10th Mikami Cup Tournament, A-class | ||||
| Date | 2007-01-28 | Rating | 2363.32 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Matsuoka Teruo | 1872.87 |
| 2 | White | Loss | Iwano Fumio | 2141.41 |
| 3 | Black | Win | Maruta Hiroki | 2019.36 |
| 4 | White | Win | Tomobe Katsuhiro | 2053.73 |
| 5 | Black | Win | Kobayashi Koichi | 2096.69 |
| 23rd Kanto Shinei Tournament | ||||
| Date | 2006-09-10 | Rating | 2340.38 | |
| 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 | 1851.84 |
| 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 | 2336.49 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2110.61 |
| 2 | White | Win | Mitsumori Masao | 2251.15 |
| 3 | Black | Win | Kudomi Takahiro | 2282.18 |
| 4 | Black | Loss | Kamemoto Daichi | 2204.99 |
| 23rd Kanto Championship | ||||
| Date | 2006-05-21 | Rating | 2334.15 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kawamura Norihiko | 2661.65 |
| 2 | White | Win | Tanizaki Ryusuke | 2111.82 |
| 3 | Black | Win | Kudomi Takahiro | 2280.60 |
| 4 | White | Win | Isobe Taizan | 2409.00 |
| 5 | White | Loss | Nakamura Shigeru | 2844.03 |
| 46th Suisei-sen tournament final round | ||||
| Date | 2006-04-16 | Rating | 2327.08 | |
| Round | Color | Result | Opponent | |
| White | Win | Itami Yoshiyuki | 2155.98 | |
| White | Win | Nagao Noriaki | 2219.53 | |
| White | Loss | Kato Yasuhiro | 2049.73 | |
| White | Win | Hara Masao | 2075.91 | |
| Black | Loss | Ono Takayuki | 2302.76 | |
| 1st All Japan Championship | ||||
| Date | 2006-03-26 | Rating | 2324.13 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tadokoro Hosai | 1928.72 |
| 2 | Black | Loss | Isobe Taizan | 2423.27 |
| 3 | Black | Loss | Tanizaki Ryusuke | 2110.76 |
| 4 | White | Win | Itami Yoshiyuki | 2158.88 |
| 5 | Black | Win | Sato Kiyotomi | 2408.47 |
| 6 | White | Win | Miyoshi Takeo | 2272.76 |
| 46th Suisei-sen Tournament - 1st round | ||||
| Date | 2006-03-12 | Rating | 2321.72 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujikawa Masaki | 2027.79 |
| 2 | White | Win | Tadokoro Hosai | 1928.19 |
| 3 | White | Loss | Nagao Noriaki | 2221.52 |
| 4 | White | Win | Tomobe Katsuhiro | 2089.08 |
| 9th Mikami Cup - A Class | ||||
| Date | 2006-01-29 | Rating | 2315.36 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Iwano Fumio | 2072.21 |
| 2 | White | Win | Teshima Masakatsu | 1955.68 |
| 3 | White | Loss | Ono Takayuki | 2301.96 |
| 4 | White | Win | Nakata Shinsuke | 1974.45 |
| 5 | Black | Win | Watanabe Tatsuya | 2131.87 |
| 37th Kyoto Classified - group 1 | ||||
| Date | 2005-11-13 | Rating | 2302.23 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ozawa Tetsushi | 2013.83 |
| 2 | White | Win | Itami Yoshiyuki | 2177.91 |
| 3 | White | Loss | Oosumi Yuuki | 2402.88 |
| 4 | White | Win | Hayashi Koji | 2004.07 |
| 5 | Black | Win | Ono Takayuki | 2294.30 |
| 6 | White | Loss | Shinoda Kiyoshi | 2344.73 |
| 6th Kanto Renju Emperor Tournament - Semifinal | ||||
| Date | 2005-10-23 | Rating | 2297.87 | |
| Round | Color | Result | Opponent | |
| White | Loss | Yamaguchi Yusui | 2593.73 | |
| White | Loss | Okabe Hiroshi | 2589.71 | |
| White | Loss | Isobe Taizan | 2455.73 | |
| White | Loss | Kamemoto Daichi | 2178.84 | |
| White | Win | Sato Kiyotomi | 2392.67 | |
| 6th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2005-10-22 | Rating | 2297.73 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Koyama Masayuki | 1727.64 |
| 2 | White | Loss | Sato Kiyotomi | 2392.71 |
| 3 | White | Win | Teshima Masakatsu | 1956.14 |
| 4 | Black | Win | Nakata Shinsuke | 1966.26 |
| 22nd Kanto Shineisen Tournament | ||||
| Date | 2005-09-11 | Rating | 2292.46 | |
| 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 | 2340.90 |
| 5 | Black | Win | Kamemoto Daichi | 2167.97 |
| 43rd Meijinsen Qualification: East Japan 1st round | ||||
| Date | 2005-06-12 | Rating | 2277.20 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2150.11 |
| 2 | Black | Loss | Kudomi Takahiro | 2297.60 |
| 3 | White | Loss | Arita Nobuyoshi | 2322.97 |
| 4 | White | Win | Ohno Syunzo | 2072.81 |
| 22nd Kanto Championship | ||||
| Date | 2005-05-22 | Rating | 2274.48 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Mitsumori Masao | 2264.77 |
| 2 | White | Loss | Yamaguchi Yusui | 2560.32 |
| 3 | White | Win | Kudomi Takahiro | 2298.10 |
| 4 | Black | Loss | Maruta Koji | 2154.77 |
| 5 | White | Loss | Sato Kiyotomi | 2392.35 |
| 45th Suisei-sen Tournament | ||||
| Date | 2005-03-20 | Rating | 2267.34 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Muramatsu Yasuhiro | 1690.17 |
| 2 | White | Win | Arita Nobuyoshi | 2296.74 |
| 3 | White | Win | Sano Hiroyuki | 2133.27 |
| 4 | Black | Win | Kobayashi Koichi | 2091.72 |
| 8th Mikami Cup - A Class | ||||
| Date | 2005-01-23 | Rating | 2253.77 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Arita Nobuyoshi | 2284.37 |
| 2 | Black | Win | Nagumo Natsuhiko | 2054.58 |
| 3 | Black | Win | Kato Yasuhiro | 2022.40 |
| 4 | White | Loss | Nagao Noriaki | 2242.05 |
| 5 | Black | Win | Sato Kiyotomi | 2368.57 |
| 5th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2004-11-28 | Rating | 2236.24 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Mitsumori Masao | 2246.33 |
| 2 | Black | Loss | Tomobe Katsuhiro | 2029.19 |
| 3 | Black | Win | Mao Richu | 1771.17 |
| 4 | Black | Loss | Iwano Fumio | 2038.84 |
| 21st Kanto Shineisen Tournament | ||||
| Date | 2004-09-12 | Rating | 2228.78 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Shibata Satoru | 1706.65 |
| 2 | Black | Loss | Sato Kiyotomi | 2364.00 |
| 3 | Black | Win | Sato Takuma | 2167.66 |
| 4 | White | Draw | Tashiro Yuichi | 2286.19 |
| 5 | Black | Win | Hara Masao | 2068.72 |
| 7th Mikami Cup - A class | ||||
| Date | 2004-01-25 | Rating | 2193.27 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Win | Kawabe Tatsuya | 1878.32 |
| 5 | Black | Win | Itami Yoshiyuki | 2147.26 |
| 20th Kanto Shineisen Tournament | ||||
| Date | 2003-09-21 | Rating | 2165.85 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kato Yasuhiro | 2045.33 |
| 2 | White | Win | Maruta Hiroki | 1933.42 |
| 3 | White | Loss | Sato Takuma | 2135.59 |
| 4 | White | Win | Sasaki Miyu | 1936.27 |
| 5 | White | Loss | Itami Yoshiyuki | 2150.32 |