Koyama Jun (小山純)
Place: Tokyo, Japan
Rating: 2535.91, Std: 136.65, Rank: 57
First game: 2003-09-21, Last game: 2022-05-22
Top rating: 2589.07 (2015-11-15)
Games: 349, Wins: 200, Draws: 35, Losses: 114
Gy1: 0, Gy2: 4, Gy5: 46
| 60th Meijinsen Qualification Kanto area 1st round | ||||
|---|---|---|---|---|
| Date | 2022-05-22 | Rating | 2535.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Tomobe Katsuhiro | 2071.08 |
| 2 | White | Win | Maruta Hiroki | 2142.62 |
| 3 | Black | Draw | Fujita Maiko | 2353.75 |
| 4 | Black | Draw | Yokoyama Shota | 2397.27 |
| 57 Meijinsen Tournament | ||||
| Date | 2019-09-16 | Rating | 2555.68 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Inoue Fumiya | 2375.14 |
| 2 | White | Loss | Kamiya Shunsuke | 2766.31 |
| 3 | Black | Loss | Kawamura Norihiko | 2628.22 |
| 4 | White | Win | Matsuura Hiroshi | 2327.15 |
| 5 | Black | Loss | Nakayama Tomoharu | 2771.60 |
| 6 | White | Loss | Kawano Takahisa | 2413.17 |
| 7 | White | Loss | Hasegawa Kazuto | 2561.34 |
| 8 | White | Win | Okabe Hiroshi | 2671.70 |
| 9 | Black | Win | Ishitani Shin-ichi | 2340.87 |
| World Championship AT | ||||
| Date | 2019-08-10 | Rating | 2559.66 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Mei Fan | 2650.02 |
| 2 | Black | Win | Oll Aivo | 2686.87 |
| 3 | Black | Win | Inoue Fumiya | 2377.44 |
| 4 | Black | Win | Epifanov Dmitry | 2622.91 |
| 5 | Black | Loss | Nakayama Tomoharu | 2767.90 |
| 6 | Black | Win | Okabe Hiroshi | 2668.46 |
| 7 | Black | Draw | Kamiya Shunsuke | 2764.20 |
| 8 | Black | Draw | Gardström Petter | 2650.02 |
| 9 | White | Loss | Fedotov Denis | 2619.08 |
| 10 | White | Loss | Cao Dong | 2723.34 |
| 11 | Black | Loss | Sushkov Vladimir | 2790.86 |
| World Championship QT | ||||
| Date | 2019-08-02 | Rating | 2559.59 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sandstrom Richard | 2336.32 |
| 2 | White | Win | Li Xiaoqing | 2605.38 |
| 3 | Black | Loss | Mesila Villem | 2613.47 |
| 4 | Black | Win | Wai Chan Keong | 2727.99 |
| 5 | Black | Draw | Fedotov Denis | 2621.12 |
| 6 | White | Loss | Gardström Petter | 2650.99 |
| 7 | White | Win | Topkin Georg-Romet | 2563.65 |
| 57 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2019-06-23 | Rating | 2555.40 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Hiroki | 2143.31 |
| 2 | Black | Win | Maruta Koji | 2094.99 |
| 3 | White | Win | Inoue Fumiya | 2379.36 |
| 4 | Black | Win | Kusajima Masato | 2209.61 |
| 5 | White | Win | Ono Takayuki | 2351.74 |
| 14th All Japan Championship | ||||
| Date | 2019-03-31 | Rating | 2541.75 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Fujita Maiko | 2251.46 |
| 2 | Black | Win | Chigira Makoto | 2044.50 |
| 3 | White | Draw | Inoue Fumiya | 2379.01 |
| 4 | White | Win | Ono Takayuki | 2350.87 |
| 5 | Black | Loss | Nakamura Shigeru | 2934.14 |
| 6 | Black | Loss | Okabe Hiroshi | 2654.28 |
| 19 Renju Emperor Tournament Kanto area 1st round | ||||
| Date | 2018-10-21 | Rating | 2529.88 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1892.47 |
| 2 | White | Loss | Iwano Fumio | 2198.05 |
| 3 | White | Draw | Ishitani Shin-ichi | 2376.64 |
| 4 | White | Loss | Inoue Fumiya | 2362.74 |
| 56 Meijinsen Tournament | ||||
| Date | 2018-09-17 | Rating | 2531.87 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kuga Akio | 2375.47 |
| 2 | Black | Loss | Matsuura Hiroshi | 2318.75 |
| 3 | White | Win | Okabe Hiroshi | 2655.94 |
| 5 | Black | Win | Kawamura Norihiko | 2610.77 |
| 6 | Black | Loss | Ishitani Shin-ichi | 2378.79 |
| 7 | Black | Loss | Kamiya Shunsuke | 2747.46 |
| 8 | White | Loss | Nakamura Shigeru | 2937.29 |
| 9 | White | Win | Hasegawa Kazuto | 2539.63 |
| 35 Kanto Championship | ||||
| Date | 2018-07-16 | Rating | 2534.18 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Loss | Sato Kiyotomi | 2403.06 |
| 5 | White | Win | Iwano Fumio | 2202.15 |
| 6 | White | Win | Fujikawa Masaki | 2067.62 |
| 56 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2018-06-25 | Rating | 2535.71 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2250.90 |
| 2 | Black | Win | Sato Kiyotomi | 2403.52 |
| 3 | White | Loss | Ono Takayuki | 2345.54 |
| 56 Meijinsen Qualification Kanto area 1st round | ||||
| Date | 2018-05-13 | Rating | 2539.70 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mitsumori Masao | 2290.49 |
| 2 | Black | Win | Iwano Fumio | 2210.36 |
| 3 | Black | Win | Maruta Hiroki | 2116.23 |
| 4 | White | Win | Sato Kiyotomi | 2403.21 |
| 12th Team World Championship | ||||
| Date | 2018-05-05 | Rating | 2540.61 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Lillemaa Argo | 2159.92 |
| 2 | Black | Win | Purk Andry | 2595.82 |
| 4 | White | Win | Kachaev Denis | 2498.83 |
| 5 | Black | Win | Nikonov Konstantin | 2640.39 |
| 6 | Black | Win | Liu Yang | 2585.83 |
| 7 | White | Win | Lavrik-Karmazin Maksim | 2444.70 |
| 8 | White | Draw | Artemyev Sergey | 2519.39 |
| 9 | Black | Loss | Liu Yang | 2585.83 |
| 10 | White | Loss | Purk Andry | 2595.82 |
| 13th All Japan Championship | ||||
| Date | 2018-01-28 | Rating | 2538.69 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Ono Takayuki | 2339.99 |
| 2 | White | Loss | Ishitani Shin-ichi | 2371.41 |
| 3 | White | Loss | Miyamoto Syunju | 2219.22 |
| 5 | White | Win | Sato Kiyotomi | 2397.92 |
| 6 | Black | Win | Maruta Hiroki | 2109.72 |
| 18 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2017-12-17 | Rating | 2543.96 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Sato Kiyotomi | 2400.34 |
| 2 | Black | Win | Miyamoto Syunju | 2222.84 |
| 3 | Black | Loss | Nakamura Shigeru | 2908.47 |
| 4 | Black | Loss | Okabe Hiroshi | 2670.65 |
| 5 | White | Win | Kusajima Masato | 2250.13 |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 2550.90 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koyama Akihiro | 1931.69 |
| 2 | White | Draw | Okabe Hiroshi | 2672.11 |
| 3 | Black | Win | Ono Takayuki | 2335.99 |
| 4 | White | Win | Kusajima Masato | 2247.81 |
| World Championship BT | ||||
| Date | 2017-08-12 | Rating | 2559.69 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Rahumägi Brenet | 2290.05 |
| 2 | Black | Win | Sun In | 2392.22 |
| 3 | Black | Draw | Liu Yang | 2614.65 |
| 4 | Black | Win | Lan Zhiren | 2595.03 |
| 5 | Black | Win | Yang Yu-Hsiung | 2391.69 |
| 6 | Black | Loss | Tang Kai Lam | 2719.19 |
| 7 | Black | Win | Topkin Georg-Romet | 2464.68 |
| 8 | White | Win | Huang Yen-Hua | 2416.85 |
| 9 | Black | Loss | Okabe Hiroshi | 2672.36 |
| World Championship QT | ||||
| Date | 2017-08-05 | Rating | 2559.73 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Rahumägi Brenet | 2289.94 |
| 2 | White | Win | Sushkov Vladimir | 2817.92 |
| 3 | Black | Loss | Lan Zhiren | 2594.43 |
| 4 | Black | Loss | Mei Fan | 2645.76 |
| 5 | White | Draw | Okabe Hiroshi | 2672.46 |
| 6 | Black | Win | Kim Su Chan | 2277.32 |
| 7 | Black | Win | Lu Wei-Yuan | 2549.87 |
| 55 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2017-06-11 | Rating | 2556.04 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tomobe Katsuhiro | 2120.22 |
| 2 | White | Loss | Tamada Yoichi | 2494.57 |
| 3 | White | Loss | Ono Takayuki | 2333.46 |
| 4 | Black | Win | Miyamoto Syunju | 2217.84 |
| 5 | Black | Loss | Sato Kiyotomi | 2427.16 |
| 12th All Japan Championship | ||||
| Date | 2017-03-26 | Rating | 2561.44 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kusajima Masato | 2241.03 |
| 2 | Black | Loss | Nakamura Shigeru | 2911.16 |
| 3 | Black | Win | Ishitani Shin-ichi | 2355.20 |
| 4 | Black | Win | Nakayama Tomoharu | 2748.27 |
| 5 | Black | Loss | Kamiya Shunsuke | 2732.61 |
| 6 | White | Loss | Tachi Masaya | 2494.98 |
| 20 New Year (Mikami) Cup | ||||
| Date | 2017-01-22 | Rating | 2565.24 | |
| Round | Color | Result | Opponent | |
| S2 | Black | Win | Sato Kiyotomi | 2444.35 |
| S3 | Black | Loss | Nakamura Shigeru | 2909.55 |
| S4 | Black | Win | Ishitani Shin-ichi | 2355.36 |
| S5 | Black | Loss | Okabe Hiroshi | 2672.77 |
| 17 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2016-11-23 | Rating | 2568.45 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1901.46 |
| 2 | Black | Loss | Okabe Hiroshi | 2669.36 |
| 3 | Black | Win | Iwano Fumio | 2226.72 |
| 4 | White | Win | Ishitani Shin-ichi | 2360.19 |
| 54 Meijinsen Tournament | ||||
| Date | 2016-09-19 | Rating | 2571.86 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Matsuura Hiroshi | 2324.03 |
| 2 | Black | Loss | Kamiya Shunsuke | 2707.77 |
| 3 | White | Draw | Hasegawa Kazuto | 2592.75 |
| 4 | White | Draw | Iio Yoshihiro | 2512.15 |
| 5 | Black | Win | Tanaka Toshiki | 2411.10 |
| 6 | Black | Draw | Nakayama Tomoharu | 2733.25 |
| 7 | Black | Draw | Maruyama Yasushi | 2254.63 |
| 8 | Black | Win | Kuga Akio | 2333.25 |
| 9 | White | Loss | Okabe Hiroshi | 2672.84 |
| 33 Kanto Championship | ||||
| Date | 2016-07-31 | Rating | 2575.19 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kato Yasuhiro | 2021.57 |
| 2 | Black | Loss | Nakamura Shigeru | 2901.60 |
| 3 | Black | Loss | Okabe Hiroshi | 2675.97 |
| 4 | Black | Win | Nakamura Souta | 2236.06 |
| 5 | Black | Draw | Nakayama Tomoharu | 2731.45 |
| 6 | Black | Draw | Ishitani Shin-ichi | 2351.97 |
| 54 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2016-06-12 | Rating | 2579.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2228.21 |
| 2 | Black | Win | Kamiya Shunsuke | 2682.24 |
| 3 | White | Win | Tamada Yoichi | 2520.49 |
| 4 | Black | Draw | Mitsumori Masao | 2308.48 |
| 5 | White | Draw | Okabe Hiroshi | 2677.84 |
| 19 Mikami Cup | ||||
| Date | 2016-03-13 | Rating | 2582.02 | |
| Round | Color | Result | Opponent | |
| S1 | White | Win | Ishitani Shin-ichi | 2355.83 |
| S2 | Black | Loss | Nakamura Shigeru | 2890.31 |
| S3 | White | Win | Kusajima Masato | 2226.50 |
| S4 | Black | Loss | Okabe Hiroshi | 2675.68 |
| 16th Kanto Renju Emperor Tournament Final | ||||
| Date | 2016-02-14 | Rating | 2583.06 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Nakayama Tomoharu | 2730.18 |
| 2 | White | Loss | Nakayama Tomoharu | 2730.18 |
| 11th All Japan Championship | ||||
| Date | 2016-01-11 | Rating | 2585.83 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2088.42 |
| 2 | Black | Win | Nakamura Souta | 2253.83 |
| 3 | Black | Win | Okabe Hiroshi | 2672.75 |
| 4 | Black | Loss | Nakayama Tomoharu | 2728.41 |
| 5 | White | Loss | Sato Kiyotomi | 2480.79 |
| 6 | White | Draw | Tamada Yoichi | 2524.98 |
| 16 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2015-12-13 | Rating | 2588.70 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sato Kiyotomi | 2480.65 |
| 2 | White | Win | Ono Takayuki | 2296.47 |
| 3 | Black | Loss | Okabe Hiroshi | 2672.80 |
| 4 | Black | Draw | Nakayama Tomoharu | 2726.56 |
| 5 | White | Win | Nakamura Shigeru | 2877.61 |
| 16 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2015-11-15 | Rating | 2589.07 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ishitani Shin-ichi | 2358.45 |
| 2 | Black | Win | Sato Kiyotomi | 2478.71 |
| 3 | Black | Win | Okabe Hiroshi | 2673.73 |
| 4 | Black | Win | Ono Takayuki | 2297.06 |
| 53 Meijinsen Tournament | ||||
| Date | 2015-09-22 | Rating | 2584.44 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hasegawa Kazuto | 2619.85 |
| 2 | Black | Win | Oosumi Yuuki | 2734.65 |
| 3 | White | Win | Ishitani Shin-ichi | 2357.95 |
| 4 | Black | Draw | Nakayama Tomoharu | 2720.04 |
| 5 | White | Loss | Kawamura Norihiko | 2580.95 |
| 6 | White | Loss | Tamada Yoichi | 2532.90 |
| 7 | Black | Draw | Iio Yoshihiro | 2491.45 |
| 8 | White | Win | Matsuura Hiroshi | 2350.64 |
| 9 | Black | Draw | Okabe Hiroshi | 2676.02 |
| World Championship BT | ||||
| Date | 2015-08-12 | Rating | 2581.60 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Huang Xiuyi | 2152.30 |
| 2 | Black | Loss | Miyagawa Junzo | 2208.62 |
| 3 | Black | Win | Topkin Georg-Romet | 2296.93 |
| 4 | Black | Win | Wang Chih-Kung | 2314.31 |
| 5 | Black | Loss | Sirategyan Karen | 2392.14 |
| 6 | Black | Win | Ishitani Shin-ichi | 2360.54 |
| 7 | Black | Win | Lavrik-Karmazin Maksim | 2245.87 |
| 8 | White | Win | Mano Yoshihisa | 2322.76 |
| 9 | White | Draw | Nakayama Tomoharu | 2716.40 |
| World Championship QT | ||||
| Date | 2015-08-05 | Rating | 2581.38 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Topkin Georg-Romet | 2295.62 |
| 2 | Black | Win | Nakayama Tomoharu | 2715.26 |
| 3 | Black | Loss | Kamiya Shunsuke | 2655.89 |
| 4 | White | Draw | Wang Qingqing | 2591.80 |
| 5 | Black | Win | Huang Yen-Hua | 2424.74 |
| 6 | Black | Loss | Epifanov Dmitry | 2659.87 |
| 7 | Black | Win | Lin Liu-Min | 2526.56 |
| Kanto Championship | ||||
| Date | 2015-07-20 | Rating | 2579.95 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2075.64 |
| 2 | Black | Win | Nakamura Shigeru | 2863.36 |
| 3 | Black | Draw | Okabe Hiroshi | 2683.14 |
| 4 | White | Win | Iwano Fumio | 2214.67 |
| 5 | Black | Loss | Nakayama Tomoharu | 2714.24 |
| 6 | Black | Win | Zhao Jiadong | 2097.61 |
| 53 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2015-06-14 | Rating | 2574.36 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Tamada Yoichi | 2538.49 |
| 2 | Black | Win | Sato Kiyotomi | 2459.88 |
| 3 | White | Win | Ono Takayuki | 2296.64 |
| 5 | Black | Draw | Kamiya Shunsuke | 2644.59 |
| 6 | White | Win | Nakamura Souta | 2244.89 |
| 53 Meijinsen Qualification East Japan area 1st round | ||||
| Date | 2015-05-10 | Rating | 2568.44 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Mitsumori Masao | 2291.66 |
| 2 | Black | Win | Iwano Fumio | 2210.88 |
| 3 | Black | Win | Nakamura Souta | 2242.91 |
| 4 | White | Loss | Kamiya Shunsuke | 2639.01 |
| 10th All Japan Championship | ||||
| Date | 2015-03-29 | Rating | 2561.29 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2062.33 |
| 2 | White | Loss | Kamiya Shunsuke | 2629.59 |
| 3 | Black | Win | Kato Yasuhiro | 2037.73 |
| 4 | Black | Win | Mitsumori Masao | 2290.89 |
| 5 | Black | Loss | Ishitani Shin-ichi | 2384.11 |
| 6 | Black | Win | Tanizaki Ryusuke | 2163.87 |
| 12 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2011-10-23 | Rating | 2419.76 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Oosumi Yuuki | 2732.63 |
| 2 | White | Win | Suzuki Rin | 1969.57 |
| 3 | White | Loss | Isobe Taizan | 2387.26 |
| 4 | White | Loss | Fukui Nobuhiro | 2438.53 |
| 49 Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2011-06-12 | Rating | 2415.52 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Isobe Taizan | 2379.07 |
| 2 | Black | Win | Kudomi Takahiro | 2380.18 |
| 3 | Black | Loss | Nakayama Tomoharu | 2521.35 |
| 4 | Black | Win | Ono Takayuki | 2367.72 |
| ex | Black | Loss | Nakayama Tomoharu | 2521.35 |
| 28th Kanto Shineisen Tournament | ||||
| Date | 2011-04-17 | Rating | 2415.30 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kon Akira | 1980.33 |
| 2 | Black | Win | Kamiya Shunsuke | 2390.68 |
| 3 | White | Win | Ozawa Tetsushi | 2064.13 |
| 4 | White | Loss | Nakayama Tomoharu | 2510.61 |
| 5 | Black | Win | Tomobe Katsuhiro | 2190.61 |
| 5 | White | Loss | Kamiya Shunsuke | 2390.68 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2415.17 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Kon Akira | 1974.92 |
| A2 | White | Loss | Iwano Fumio | 2111.02 |
| A3 | Black | Win | Matsuoka Teruo | 1962.21 |
| A4 | Black | Win | Kise Katsumi | 2497.98 |
| A5 | Black | Win | Isobe Seiji | 1996.32 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2414.72 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Yasuhiro | 2119.51 |
| 2 | White | Win | Gakumazawa Hideaki | 2118.66 |
| 3 | Black | Loss | Sato Kiyotomi | 2407.49 |
| 4 | White | Win | Miyagawa Junzo | 2185.67 |
| 5 | White | Draw | Maruyama Yasushi | 2229.59 |
| 6 | Black | Win | Ono Takayuki | 2375.30 |
| 46th Meijinsen Qualification East-Japan area 2nd round | ||||
| Date | 2008-07-13 | Rating | 2407.96 | |
| Round | Color | Result | Opponent | |
| White | Loss | Kawamura Norihiko | 2624.58 | |
| White | Loss | Sato Kiyotomi | 2407.48 | |
| White | Win | Arita Nobuyoshi | 2363.92 | |
| White | Loss | Isobe Taizan | 2392.36 | |
| Black | Win | Nagao Noriaki | 2247.16 | |
| 46th Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2008-06-15 | Rating | 2408.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Sato Kiyotomi | 2403.60 |
| 2 | White | Win | Tanno Yoshitaka | 2100.28 |
| 3 | Black | Win | Ono Takayuki | 2371.80 |
| 4 | Black | Win | Kudomi Takahiro | 2319.44 |
| 25th Kanto Shineisen Tournament | ||||
| Date | 2008-04-13 | Rating | 2403.20 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2085.03 |
| 2 | Black | Win | Watanabe Tatsuya | 2139.01 |
| 3 | White | Win | Tomobe Katsuhiro | 2058.96 |
| 4 | Black | Win | Iwano Fumio | 2161.62 |
| 5 | Black | Draw | Ono Takayuki | 2368.64 |
| 2nd All Japan Championship (WC Qualification) | ||||
| Date | 2007-03-25 | Rating | 2353.39 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kuramoto Hideharu | 1871.25 |
| 2 | Black | Loss | Yamaguchi Yusui | 2615.33 |
| 3 | Black | Loss | Iio Yoshihiro | 2494.03 |
| 4 | White | Win | Maruta Hiroki | 2010.65 |
| 5 | White | Win | Tanno Yoshitaka | 2107.57 |
| 6 | Black | Win | Ono Takayuki | 2324.58 |
| 10th Mikami Cup Tournament, A-class | ||||
| Date | 2007-01-28 | Rating | 2344.71 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Matsuoka Teruo | 1865.21 |
| 2 | White | Loss | Iwano Fumio | 2125.15 |
| 3 | Black | Win | Maruta Hiroki | 2007.49 |
| 4 | White | Win | Tomobe Katsuhiro | 2049.20 |
| 5 | Black | Win | Kobayashi Koichi | 2086.13 |
| 23rd Kanto Shinei Tournament | ||||
| Date | 2006-09-10 | Rating | 2325.67 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 1992.58 |
| 1 | Black | Win | Teshima Masakatsu | 1944.46 |
| 2 | Black | Loss | Tanizaki Ryusuke | 2110.60 |
| 3 | Black | Win | Matsuoka Teruo | 1849.81 |
| 4 | White | Win | Iwano Fumio | 2099.55 |
| 5 | White | Loss | Watanabe Tatsuya | 2120.92 |
| Meijin-sen Qual, East Japan area 1st round | ||||
| Date | 2006-06-18 | Rating | 2320.72 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2104.53 |
| 2 | White | Win | Mitsumori Masao | 2241.68 |
| 3 | Black | Win | Kudomi Takahiro | 2274.79 |
| 4 | Black | Loss | Kamemoto Daichi | 2181.85 |
| 23rd Kanto Championship | ||||
| Date | 2006-05-21 | Rating | 2318.33 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kawamura Norihiko | 2636.22 |
| 2 | White | Win | Tanizaki Ryusuke | 2100.48 |
| 3 | Black | Win | Kudomi Takahiro | 2273.66 |
| 4 | White | Win | Isobe Taizan | 2398.66 |
| 5 | White | Loss | Nakamura Shigeru | 2813.72 |
| 46th Suisei-sen tournament final round | ||||
| Date | 2006-04-16 | Rating | 2312.53 | |
| Round | Color | Result | Opponent | |
| White | Win | Itami Yoshiyuki | 2149.63 | |
| White | Win | Nagao Noriaki | 2212.01 | |
| White | Loss | Kato Yasuhiro | 2030.85 | |
| White | Win | Hara Masao | 2062.74 | |
| Black | Loss | Ono Takayuki | 2291.31 | |
| 1st All Japan Championship | ||||
| Date | 2006-03-26 | Rating | 2309.89 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tadokoro Hosai | 1921.21 |
| 2 | Black | Loss | Isobe Taizan | 2409.00 |
| 3 | Black | Loss | Tanizaki Ryusuke | 2099.02 |
| 4 | White | Win | Itami Yoshiyuki | 2151.64 |
| 5 | Black | Win | Sato Kiyotomi | 2389.41 |
| 6 | White | Win | Miyoshi Takeo | 2255.70 |
| 46th Suisei-sen Tournament - 1st round | ||||
| Date | 2006-03-12 | Rating | 2307.83 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujikawa Masaki | 2030.11 |
| 2 | White | Win | Tadokoro Hosai | 1920.96 |
| 3 | White | Loss | Nagao Noriaki | 2213.53 |
| 4 | White | Win | Tomobe Katsuhiro | 2073.56 |
| 9th Mikami Cup - A Class | ||||
| Date | 2006-01-29 | Rating | 2302.15 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Iwano Fumio | 2069.70 |
| 2 | White | Win | Teshima Masakatsu | 1948.31 |
| 3 | White | Loss | Ono Takayuki | 2289.16 |
| 4 | White | Win | Nakata Shinsuke | 1960.03 |
| 5 | Black | Win | Watanabe Tatsuya | 2117.74 |
| 37th Kyoto Classified - group 1 | ||||
| Date | 2005-11-13 | Rating | 2290.69 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ozawa Tetsushi | 2006.92 |
| 2 | White | Win | Itami Yoshiyuki | 2165.02 |
| 3 | White | Loss | Oosumi Yuuki | 2388.99 |
| 4 | White | Win | Hayashi Koji | 1986.23 |
| 5 | Black | Win | Ono Takayuki | 2282.39 |
| 6 | White | Loss | Shinoda Kiyoshi | 2327.57 |
| 6th Kanto Renju Emperor Tournament - Semifinal | ||||
| Date | 2005-10-23 | Rating | 2287.07 | |
| Round | Color | Result | Opponent | |
| White | Loss | Yamaguchi Yusui | 2574.40 | |
| White | Loss | Okabe Hiroshi | 2566.89 | |
| White | Loss | Isobe Taizan | 2432.94 | |
| White | Loss | Kamemoto Daichi | 2162.44 | |
| White | Win | Sato Kiyotomi | 2376.35 | |
| 6th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2005-10-22 | Rating | 2286.95 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Koyama Masayuki | 1724.07 |
| 2 | White | Loss | Sato Kiyotomi | 2376.36 |
| 3 | White | Win | Teshima Masakatsu | 1948.78 |
| 4 | Black | Win | Nakata Shinsuke | 1954.33 |
| 22nd Kanto Shineisen Tournament | ||||
| Date | 2005-09-11 | Rating | 2282.20 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Teshima Masakatsu | 1948.89 |
| 2 | White | Win | Tadokoro Hosai | 1920.27 |
| 3 | Black | Win | Tomobe Katsuhiro | 2061.62 |
| 4 | Black | Loss | Arita Nobuyoshi | 2319.40 |
| 5 | Black | Win | Kamemoto Daichi | 2154.59 |
| 43rd Meijinsen Qualification: East Japan 1st round | ||||
| Date | 2005-06-12 | Rating | 2269.38 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2138.12 |
| 2 | Black | Loss | Kudomi Takahiro | 2286.92 |
| 3 | White | Loss | Arita Nobuyoshi | 2304.90 |
| 4 | White | Win | Ohno Syunzo | 2055.91 |
| 22nd Kanto Championship | ||||
| Date | 2005-05-22 | Rating | 2267.01 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Mitsumori Masao | 2250.92 |
| 2 | White | Loss | Yamaguchi Yusui | 2549.13 |
| 3 | White | Win | Kudomi Takahiro | 2287.57 |
| 4 | Black | Loss | Maruta Koji | 2141.64 |
| 5 | White | Loss | Sato Kiyotomi | 2373.90 |
| 45th Suisei-sen Tournament | ||||
| Date | 2005-03-20 | Rating | 2260.75 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Muramatsu Yasuhiro | 1686.65 |
| 2 | White | Win | Arita Nobuyoshi | 2284.75 |
| 3 | White | Win | Sano Hiroyuki | 2133.13 |
| 4 | Black | Win | Kobayashi Koichi | 2083.59 |
| 8th Mikami Cup - A Class | ||||
| Date | 2005-01-23 | Rating | 2250.37 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Arita Nobuyoshi | 2274.60 |
| 2 | Black | Win | Nagumo Natsuhiko | 2050.89 |
| 3 | Black | Win | Kato Yasuhiro | 2015.58 |
| 4 | White | Loss | Nagao Noriaki | 2232.06 |
| 5 | Black | Win | Sato Kiyotomi | 2355.71 |
| 5th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2004-11-28 | Rating | 2237.49 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Mitsumori Masao | 2238.71 |
| 2 | Black | Loss | Tomobe Katsuhiro | 2029.22 |
| 3 | Black | Win | Mao Richu | 1768.71 |
| 4 | Black | Loss | Iwano Fumio | 2040.04 |
| 21st Kanto Shineisen Tournament | ||||
| Date | 2004-09-12 | Rating | 2230.99 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Shibata Satoru | 1698.35 |
| 2 | Black | Loss | Sato Kiyotomi | 2349.89 |
| 3 | Black | Win | Sato Takuma | 2155.50 |
| 4 | White | Draw | Tashiro Yuichi | 2272.59 |
| 5 | Black | Win | Hara Masao | 2063.34 |
| 7th Mikami Cup - A class | ||||
| Date | 2004-01-25 | Rating | 2203.97 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Win | Kawabe Tatsuya | 1875.75 |
| 5 | Black | Win | Itami Yoshiyuki | 2144.09 |
| 20th Kanto Shineisen Tournament | ||||
| Date | 2003-09-21 | Rating | 2184.12 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kato Yasuhiro | 2034.38 |
| 2 | White | Win | Maruta Hiroki | 1937.96 |
| 3 | White | Loss | Sato Takuma | 2130.06 |
| 4 | White | Win | Sasaki Miyu | 1935.16 |
| 5 | White | Loss | Itami Yoshiyuki | 2146.16 |