Koyama Jun (小山純)
Place: Tokyo, Japan
Rating: 2575.14, Std: 183.02, Rank: 62
First game: 2003-09-21, Last game: 2022-05-22
Top rating: 2639.74 (2015-11-15)
Games: 349, Wins: 200, Draws: 35, Losses: 114
Gy1: 0, Gy2: 0, Gy5: 4
| 60th Meijinsen Qualification Kanto area 1st round | ||||
|---|---|---|---|---|
| Date | 2022-05-22 | Rating | 2575.14 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Tomobe Katsuhiro | 2104.64 |
| 2 | White | Win | Maruta Hiroki | 2193.76 |
| 3 | Black | Draw | Fujita Maiko | 2404.34 |
| 4 | Black | Draw | Yokoyama Shota | 2437.95 |
| 57 Meijinsen Tournament | ||||
| Date | 2019-09-16 | Rating | 2602.65 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Inoue Fumiya | 2412.14 |
| 2 | White | Loss | Kamiya Shunsuke | 2818.12 |
| 3 | Black | Loss | Kawamura Norihiko | 2678.19 |
| 4 | White | Win | Matsuura Hiroshi | 2364.16 |
| 5 | Black | Loss | Nakayama Tomoharu | 2820.51 |
| 6 | White | Loss | Kawano Takahisa | 2450.82 |
| 7 | White | Loss | Hasegawa Kazuto | 2608.99 |
| 8 | White | Win | Okabe Hiroshi | 2720.02 |
| 9 | Black | Win | Ishitani Shin-ichi | 2377.15 |
| World Championship 2019, AT | ||||
| Date | 2019-08-10 | Rating | 2608.64 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Mei Fan | 2698.67 |
| 2 | Black | Win | Oll Aivo | 2740.57 |
| 3 | Black | Win | Inoue Fumiya | 2416.32 |
| 4 | Black | Win | Epifanov Dmitry | 2666.84 |
| 5 | Black | Loss | Nakayama Tomoharu | 2815.02 |
| 6 | Black | Win | Okabe Hiroshi | 2715.39 |
| 7 | Black | Draw | Kamiya Shunsuke | 2815.26 |
| 8 | Black | Draw | Gardström Petter | 2695.28 |
| 9 | White | Loss | Fedotov Denis | 2677.28 |
| 10 | White | Loss | Cao Dong | 2775.23 |
| 11 | Black | Loss | Sushkov Vladimir | 2836.94 |
| World Championship 2019, QT | ||||
| Date | 2019-08-02 | Rating | 2608.56 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sandstrom Richard | 2370.60 |
| 2 | White | Win | Li Xiaoqing | 2652.22 |
| 3 | Black | Loss | Mesila Villem | 2664.56 |
| 4 | Black | Win | Wai Chan Keong | 2779.51 |
| 5 | Black | Draw | Fedotov Denis | 2679.91 |
| 6 | White | Loss | Gardström Petter | 2696.97 |
| 7 | White | Win | Topkin Georg-Romet | 2622.78 |
| 57 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2019-06-23 | Rating | 2602.28 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Hiroki | 2180.04 |
| 2 | Black | Win | Maruta Koji | 2134.97 |
| 3 | White | Win | Inoue Fumiya | 2419.85 |
| 4 | Black | Win | Kusajima Masato | 2256.75 |
| 5 | White | Win | Ono Takayuki | 2392.75 |
| 14th All Japan Championship | ||||
| Date | 2019-03-31 | Rating | 2582.06 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Fujita Maiko | 2282.73 |
| 2 | Black | Win | Chigira Makoto | 2087.88 |
| 3 | White | Draw | Inoue Fumiya | 2420.64 |
| 4 | White | Win | Ono Takayuki | 2391.64 |
| 5 | Black | Loss | Nakamura Shigeru | 2989.91 |
| 6 | Black | Loss | Okabe Hiroshi | 2694.85 |
| 19 Renju Emperor Tournament Kanto area 1st round | ||||
| Date | 2018-10-21 | Rating | 2564.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1920.84 |
| 2 | White | Loss | Iwano Fumio | 2241.74 |
| 3 | White | Draw | Ishitani Shin-ichi | 2420.67 |
| 4 | White | Loss | Inoue Fumiya | 2399.48 |
| 56 Meijinsen Tournament | ||||
| Date | 2018-09-17 | Rating | 2567.55 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kuga Akio | 2416.55 |
| 2 | Black | Loss | Matsuura Hiroshi | 2353.41 |
| 3 | White | Win | Okabe Hiroshi | 2697.01 |
| 5 | Black | Win | Kawamura Norihiko | 2660.11 |
| 6 | Black | Loss | Ishitani Shin-ichi | 2423.52 |
| 7 | Black | Loss | Kamiya Shunsuke | 2794.32 |
| 8 | White | Loss | Nakamura Shigeru | 2994.94 |
| 9 | White | Win | Hasegawa Kazuto | 2574.39 |
| 35 Kanto Championship | ||||
| Date | 2018-07-16 | Rating | 2570.57 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Loss | Sato Kiyotomi | 2438.74 |
| 5 | White | Win | Iwano Fumio | 2243.16 |
| 6 | White | Win | Fujikawa Masaki | 2095.54 |
| 56 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2018-06-25 | Rating | 2572.71 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2305.27 |
| 2 | Black | Win | Sato Kiyotomi | 2439.39 |
| 3 | White | Loss | Ono Takayuki | 2386.18 |
| 56 Meijinsen Qualification Kanto area 1st round | ||||
| Date | 2018-05-13 | Rating | 2578.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mitsumori Masao | 2328.08 |
| 2 | Black | Win | Iwano Fumio | 2252.82 |
| 3 | Black | Win | Maruta Hiroki | 2149.70 |
| 4 | White | Win | Sato Kiyotomi | 2438.70 |
| Team World Championship 2018 | ||||
| Date | 2018-05-05 | Rating | 2579.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Lillemaa Argo | 2192.69 |
| 2 | Black | Win | Purk Andry | 2631.45 |
| 4 | White | Win | Kachaev Denis | 2538.06 |
| 5 | Black | Win | Nikonov Konstantin | 2687.74 |
| 6 | Black | Win | Liu Yang | 2631.03 |
| 7 | White | Win | Lavrik-Karmazin Maksim | 2494.75 |
| 8 | White | Draw | Artemyev Sergey | 2571.99 |
| 9 | Black | Loss | Liu Yang | 2631.03 |
| 10 | White | Loss | Purk Andry | 2631.45 |
| 13th All Japan Championship | ||||
| Date | 2018-01-28 | Rating | 2575.36 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Ono Takayuki | 2379.68 |
| 2 | White | Loss | Ishitani Shin-ichi | 2413.43 |
| 3 | White | Loss | Miyamoto Syunju | 2267.42 |
| 5 | White | Win | Sato Kiyotomi | 2430.13 |
| 6 | Black | Win | Maruta Hiroki | 2142.34 |
| 18 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2017-12-17 | Rating | 2582.61 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Sato Kiyotomi | 2433.06 |
| 2 | Black | Win | Miyamoto Syunju | 2273.23 |
| 3 | Black | Loss | Nakamura Shigeru | 2956.06 |
| 4 | Black | Loss | Okabe Hiroshi | 2715.91 |
| 5 | White | Win | Kusajima Masato | 2301.57 |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 2592.16 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koyama Akihiro | 1960.61 |
| 2 | White | Draw | Okabe Hiroshi | 2717.48 |
| 3 | Black | Win | Ono Takayuki | 2374.85 |
| 4 | White | Win | Kusajima Masato | 2297.76 |
| World Championship 2017, BT | ||||
| Date | 2017-08-12 | Rating | 2603.80 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Rahumägi Brenet | 2325.99 |
| 2 | Black | Win | Sun In | 2429.69 |
| 3 | Black | Draw | Liu Yang | 2667.01 |
| 4 | Black | Win | Lan Zhiren | 2633.55 |
| 5 | Black | Win | Yang Yu-Hsiung | 2428.59 |
| 6 | Black | Loss | Tang Kai Lam | 2768.14 |
| 7 | Black | Win | Topkin Georg-Romet | 2520.80 |
| 8 | White | Win | Huang Yen-Hua | 2458.56 |
| 9 | Black | Loss | Okabe Hiroshi | 2716.98 |
| World Championship 2017, QT | ||||
| Date | 2017-08-05 | Rating | 2603.71 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Rahumägi Brenet | 2325.85 |
| 2 | White | Win | Sushkov Vladimir | 2871.17 |
| 3 | Black | Loss | Lan Zhiren | 2632.69 |
| 4 | Black | Loss | Mei Fan | 2692.39 |
| 5 | White | Draw | Okabe Hiroshi | 2717.08 |
| 6 | Black | Win | Kim Su Chan | 2305.27 |
| 7 | Black | Win | Lu Wei-Yuan | 2599.88 |
| 55 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2017-06-11 | Rating | 2597.18 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tomobe Katsuhiro | 2157.44 |
| 2 | White | Loss | Tamada Yoichi | 2534.88 |
| 3 | White | Loss | Ono Takayuki | 2372.75 |
| 4 | Black | Win | Miyamoto Syunju | 2270.13 |
| 5 | Black | Loss | Sato Kiyotomi | 2467.56 |
| 12th All Japan Championship | ||||
| Date | 2017-03-26 | Rating | 2603.83 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kusajima Masato | 2286.67 |
| 2 | Black | Loss | Nakamura Shigeru | 2962.76 |
| 3 | Black | Win | Ishitani Shin-ichi | 2390.65 |
| 4 | Black | Win | Nakayama Tomoharu | 2790.90 |
| 5 | Black | Loss | Kamiya Shunsuke | 2785.50 |
| 6 | White | Loss | Tachi Masaya | 2527.65 |
| 20 New Year (Mikami) Cup | ||||
| Date | 2017-01-22 | Rating | 2608.35 | |
| Round | Color | Result | Opponent | |
| S2 | Black | Win | Sato Kiyotomi | 2488.81 |
| S3 | Black | Loss | Nakamura Shigeru | 2961.12 |
| S4 | Black | Win | Ishitani Shin-ichi | 2390.68 |
| S5 | Black | Loss | Okabe Hiroshi | 2716.35 |
| 17 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2016-11-23 | Rating | 2612.05 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1929.42 |
| 2 | Black | Loss | Okabe Hiroshi | 2710.81 |
| 3 | Black | Win | Iwano Fumio | 2266.25 |
| 4 | White | Win | Ishitani Shin-ichi | 2397.30 |
| 54 Meijinsen Tournament | ||||
| Date | 2016-09-19 | Rating | 2616.04 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Matsuura Hiroshi | 2359.82 |
| 2 | Black | Loss | Kamiya Shunsuke | 2757.32 |
| 3 | White | Draw | Hasegawa Kazuto | 2636.98 |
| 4 | White | Draw | Iio Yoshihiro | 2558.56 |
| 5 | Black | Win | Tanaka Toshiki | 2440.53 |
| 6 | Black | Draw | Nakayama Tomoharu | 2774.92 |
| 7 | Black | Draw | Maruyama Yasushi | 2287.66 |
| 8 | Black | Win | Kuga Akio | 2361.35 |
| 9 | White | Loss | Okabe Hiroshi | 2715.36 |
| 33 Kanto Championship | ||||
| Date | 2016-07-31 | Rating | 2620.40 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kato Yasuhiro | 2039.83 |
| 2 | Black | Loss | Nakamura Shigeru | 2952.29 |
| 3 | Black | Loss | Okabe Hiroshi | 2719.56 |
| 4 | Black | Win | Nakamura Souta | 2272.36 |
| 5 | Black | Draw | Nakayama Tomoharu | 2773.87 |
| 6 | Black | Draw | Ishitani Shin-ichi | 2384.44 |
| 54 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2016-06-12 | Rating | 2627.00 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2266.52 |
| 2 | Black | Win | Kamiya Shunsuke | 2724.67 |
| 3 | White | Win | Tamada Yoichi | 2566.30 |
| 4 | Black | Draw | Mitsumori Masao | 2351.21 |
| 5 | White | Draw | Okabe Hiroshi | 2721.88 |
| 19 Mikami Cup | ||||
| Date | 2016-03-13 | Rating | 2629.48 | |
| Round | Color | Result | Opponent | |
| S1 | White | Win | Ishitani Shin-ichi | 2389.35 |
| S2 | Black | Loss | Nakamura Shigeru | 2938.29 |
| S3 | White | Win | Kusajima Masato | 2263.46 |
| S4 | Black | Loss | Okabe Hiroshi | 2717.73 |
| 16th Kanto Renju Emperor Tournament Final | ||||
| Date | 2016-02-14 | Rating | 2630.91 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Nakayama Tomoharu | 2777.38 |
| 2 | White | Loss | Nakayama Tomoharu | 2777.38 |
| 11th All Japan Championship | ||||
| Date | 2016-01-11 | Rating | 2634.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2119.78 |
| 2 | Black | Win | Nakamura Souta | 2299.98 |
| 3 | Black | Win | Okabe Hiroshi | 2712.67 |
| 4 | Black | Loss | Nakayama Tomoharu | 2775.81 |
| 5 | White | Loss | Sato Kiyotomi | 2534.73 |
| 6 | White | Draw | Tamada Yoichi | 2570.18 |
| 16 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2015-12-13 | Rating | 2639.14 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sato Kiyotomi | 2534.34 |
| 2 | White | Win | Ono Takayuki | 2322.93 |
| 3 | Black | Loss | Okabe Hiroshi | 2712.35 |
| 4 | Black | Draw | Nakayama Tomoharu | 2774.02 |
| 5 | White | Win | Nakamura Shigeru | 2921.40 |
| 16 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2015-11-15 | Rating | 2639.74 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ishitani Shin-ichi | 2391.77 |
| 2 | Black | Win | Sato Kiyotomi | 2531.45 |
| 3 | Black | Win | Okabe Hiroshi | 2713.24 |
| 4 | Black | Win | Ono Takayuki | 2323.79 |
| 53 Meijinsen Tournament | ||||
| Date | 2015-09-22 | Rating | 2633.20 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hasegawa Kazuto | 2670.50 |
| 2 | Black | Win | Oosumi Yuuki | 2771.11 |
| 3 | White | Win | Ishitani Shin-ichi | 2390.06 |
| 4 | Black | Draw | Nakayama Tomoharu | 2767.13 |
| 5 | White | Loss | Kawamura Norihiko | 2621.68 |
| 6 | White | Loss | Tamada Yoichi | 2580.57 |
| 7 | Black | Draw | Iio Yoshihiro | 2529.48 |
| 8 | White | Win | Matsuura Hiroshi | 2397.41 |
| 9 | Black | Draw | Okabe Hiroshi | 2715.53 |
| World Championship 2015, BT | ||||
| Date | 2015-08-12 | Rating | 2629.56 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Huang Xiuyi | 2187.26 |
| 2 | Black | Loss | Miyagawa Junzo | 2244.73 |
| 3 | Black | Win | Topkin Georg-Romet | 2335.21 |
| 4 | Black | Win | Wang Chih-Kung | 2339.56 |
| 5 | Black | Loss | Sirategyan Karen | 2438.47 |
| 6 | Black | Win | Ishitani Shin-ichi | 2392.73 |
| 7 | Black | Win | Lavrik-Karmazin Maksim | 2289.62 |
| 8 | White | Win | Mano Yoshihisa | 2361.43 |
| 9 | White | Draw | Nakayama Tomoharu | 2763.32 |
| World Championship 2015, QT | ||||
| Date | 2015-08-05 | Rating | 2629.39 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Topkin Georg-Romet | 2333.78 |
| 2 | Black | Win | Nakayama Tomoharu | 2761.92 |
| 3 | Black | Loss | Kamiya Shunsuke | 2703.19 |
| 4 | White | Draw | Wang Qingqing | 2625.06 |
| 5 | Black | Win | Huang Yen-Hua | 2473.59 |
| 6 | Black | Loss | Epifanov Dmitry | 2706.18 |
| 7 | Black | Win | Lin Liu-Min | 2566.37 |
| Kanto Championship | ||||
| Date | 2015-07-20 | Rating | 2627.68 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2102.01 |
| 2 | Black | Win | Nakamura Shigeru | 2903.39 |
| 3 | Black | Draw | Okabe Hiroshi | 2724.45 |
| 4 | White | Win | Iwano Fumio | 2248.88 |
| 5 | Black | Loss | Nakayama Tomoharu | 2761.13 |
| 6 | Black | Win | Zhao Jiadong | 2134.81 |
| 53 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2015-06-14 | Rating | 2620.42 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Tamada Yoichi | 2588.43 |
| 2 | Black | Win | Sato Kiyotomi | 2503.89 |
| 3 | White | Win | Ono Takayuki | 2322.29 |
| 5 | Black | Draw | Kamiya Shunsuke | 2690.01 |
| 6 | White | Win | Nakamura Souta | 2291.82 |
| 53 Meijinsen Qualification East Japan area 1st round | ||||
| Date | 2015-05-10 | Rating | 2612.68 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Mitsumori Masao | 2323.66 |
| 2 | Black | Win | Iwano Fumio | 2243.41 |
| 3 | Black | Win | Nakamura Souta | 2290.08 |
| 4 | White | Loss | Kamiya Shunsuke | 2684.20 |
| 10th All Japan Championship | ||||
| Date | 2015-03-29 | Rating | 2603.38 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2090.80 |
| 2 | White | Loss | Kamiya Shunsuke | 2673.29 |
| 3 | Black | Win | Kato Yasuhiro | 2059.91 |
| 4 | Black | Win | Mitsumori Masao | 2322.18 |
| 5 | Black | Loss | Ishitani Shin-ichi | 2422.52 |
| 6 | Black | Win | Tanizaki Ryusuke | 2199.47 |
| 12 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2011-10-23 | Rating | 2436.42 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Oosumi Yuuki | 2769.45 |
| 2 | White | Win | Suzuki Rin | 1989.44 |
| 3 | White | Loss | Isobe Taizan | 2419.92 |
| 4 | White | Loss | Fukui Nobuhiro | 2470.91 |
| 49 Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2011-06-12 | Rating | 2433.94 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Isobe Taizan | 2407.08 |
| 2 | Black | Win | Kudomi Takahiro | 2411.64 |
| 3 | Black | Loss | Nakayama Tomoharu | 2552.21 |
| 4 | Black | Win | Ono Takayuki | 2394.83 |
| ex | Black | Loss | Nakayama Tomoharu | 2552.21 |
| 28th Kanto Shineisen Tournament | ||||
| Date | 2011-04-17 | Rating | 2434.76 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kon Akira | 2005.83 |
| 2 | Black | Win | Kamiya Shunsuke | 2410.30 |
| 3 | White | Win | Ozawa Tetsushi | 2090.85 |
| 4 | White | Loss | Nakayama Tomoharu | 2540.79 |
| 5 | Black | Win | Tomobe Katsuhiro | 2227.96 |
| 5 | White | Loss | Kamiya Shunsuke | 2410.30 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2435.79 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Kon Akira | 1998.48 |
| A2 | White | Loss | Iwano Fumio | 2130.18 |
| A3 | Black | Win | Matsuoka Teruo | 1987.86 |
| A4 | Black | Win | Kise Katsumi | 2519.20 |
| A5 | Black | Win | Isobe Seiji | 2022.56 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2443.04 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Yasuhiro | 2146.48 |
| 2 | White | Win | Gakumazawa Hideaki | 2137.95 |
| 3 | Black | Loss | Sato Kiyotomi | 2432.62 |
| 4 | White | Win | Miyagawa Junzo | 2200.99 |
| 5 | White | Draw | Maruyama Yasushi | 2260.82 |
| 6 | Black | Win | Ono Takayuki | 2401.78 |
| 46th Meijinsen Qualification East-Japan area 2nd round | ||||
| Date | 2008-07-13 | Rating | 2440.34 | |
| Round | Color | Result | Opponent | |
| White | Loss | Kawamura Norihiko | 2655.20 | |
| White | Loss | Sato Kiyotomi | 2432.97 | |
| White | Win | Arita Nobuyoshi | 2391.52 | |
| White | Loss | Isobe Taizan | 2413.34 | |
| Black | Win | Nagao Noriaki | 2259.76 | |
| 46th Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2008-06-15 | Rating | 2441.97 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Sato Kiyotomi | 2427.55 |
| 2 | White | Win | Tanno Yoshitaka | 2120.83 |
| 3 | Black | Win | Ono Takayuki | 2397.95 |
| 4 | Black | Win | Kudomi Takahiro | 2337.75 |
| 25th Kanto Shineisen Tournament | ||||
| Date | 2008-04-13 | Rating | 2435.79 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2102.63 |
| 2 | Black | Win | Watanabe Tatsuya | 2155.03 |
| 3 | White | Win | Tomobe Katsuhiro | 2063.15 |
| 4 | Black | Win | Iwano Fumio | 2187.93 |
| 5 | Black | Draw | Ono Takayuki | 2394.25 |
| 2nd All Japan Championship (WC Qualification) | ||||
| Date | 2007-03-25 | Rating | 2375.25 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kuramoto Hideharu | 1887.11 |
| 2 | Black | Loss | Yamaguchi Yusui | 2647.47 |
| 3 | Black | Loss | Iio Yoshihiro | 2520.82 |
| 4 | White | Win | Maruta Hiroki | 2023.51 |
| 5 | White | Win | Tanno Yoshitaka | 2128.31 |
| 6 | Black | Win | Ono Takayuki | 2341.58 |
| 10th Mikami Cup Tournament, A-class | ||||
| Date | 2007-01-28 | Rating | 2364.30 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Matsuoka Teruo | 1873.82 |
| 2 | White | Loss | Iwano Fumio | 2142.36 |
| 3 | Black | Win | Maruta Hiroki | 2020.29 |
| 4 | White | Win | Tomobe Katsuhiro | 2054.66 |
| 5 | Black | Win | Kobayashi Koichi | 2097.68 |
| 23rd Kanto Shinei Tournament | ||||
| Date | 2006-09-10 | Rating | 2341.33 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2002.21 |
| 1 | Black | Win | Teshima Masakatsu | 1951.41 |
| 2 | Black | Loss | Tanizaki Ryusuke | 2125.87 |
| 3 | Black | Win | Matsuoka Teruo | 1852.77 |
| 4 | White | Win | Iwano Fumio | 2109.57 |
| 5 | White | Loss | Watanabe Tatsuya | 2134.27 |
| Meijin-sen Qual, East Japan area 1st round | ||||
| Date | 2006-06-18 | Rating | 2337.41 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2111.54 |
| 2 | White | Win | Mitsumori Masao | 2252.05 |
| 3 | Black | Win | Kudomi Takahiro | 2283.10 |
| 4 | Black | Loss | Kamemoto Daichi | 2205.85 |
| 23rd Kanto Championship | ||||
| Date | 2006-05-21 | Rating | 2335.06 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kawamura Norihiko | 2662.75 |
| 2 | White | Win | Tanizaki Ryusuke | 2112.72 |
| 3 | Black | Win | Kudomi Takahiro | 2281.51 |
| 4 | White | Win | Isobe Taizan | 2409.96 |
| 5 | White | Loss | Nakamura Shigeru | 2845.41 |
| 46th Suisei-sen tournament final round | ||||
| Date | 2006-04-16 | Rating | 2327.98 | |
| Round | Color | Result | Opponent | |
| White | Win | Itami Yoshiyuki | 2156.82 | |
| White | Win | Nagao Noriaki | 2220.43 | |
| White | Loss | Kato Yasuhiro | 2050.60 | |
| White | Win | Hara Masao | 2076.78 | |
| Black | Loss | Ono Takayuki | 2303.66 | |
| 1st All Japan Championship | ||||
| Date | 2006-03-26 | Rating | 2325.03 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tadokoro Hosai | 1929.59 |
| 2 | Black | Loss | Isobe Taizan | 2424.22 |
| 3 | Black | Loss | Tanizaki Ryusuke | 2111.65 |
| 4 | White | Win | Itami Yoshiyuki | 2159.72 |
| 5 | Black | Win | Sato Kiyotomi | 2409.38 |
| 6 | White | Win | Miyoshi Takeo | 2273.66 |
| 46th Suisei-sen Tournament - 1st round | ||||
| Date | 2006-03-12 | Rating | 2322.62 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujikawa Masaki | 2028.65 |
| 2 | White | Win | Tadokoro Hosai | 1929.06 |
| 3 | White | Loss | Nagao Noriaki | 2222.42 |
| 4 | White | Win | Tomobe Katsuhiro | 2089.95 |
| 9th Mikami Cup - A Class | ||||
| Date | 2006-01-29 | Rating | 2316.25 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Iwano Fumio | 2073.08 |
| 2 | White | Win | Teshima Masakatsu | 1956.49 |
| 3 | White | Loss | Ono Takayuki | 2302.83 |
| 4 | White | Win | Nakata Shinsuke | 1975.22 |
| 5 | Black | Win | Watanabe Tatsuya | 2132.72 |
| 37th Kyoto Classified - group 1 | ||||
| Date | 2005-11-13 | Rating | 2303.10 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ozawa Tetsushi | 2014.59 |
| 2 | White | Win | Itami Yoshiyuki | 2178.73 |
| 3 | White | Loss | Oosumi Yuuki | 2403.69 |
| 4 | White | Win | Hayashi Koji | 2004.76 |
| 5 | Black | Win | Ono Takayuki | 2295.16 |
| 6 | White | Loss | Shinoda Kiyoshi | 2345.54 |
| 6th Kanto Renju Emperor Tournament - Semifinal | ||||
| Date | 2005-10-23 | Rating | 2298.74 | |
| Round | Color | Result | Opponent | |
| White | Loss | Yamaguchi Yusui | 2594.61 | |
| White | Loss | Okabe Hiroshi | 2590.60 | |
| White | Loss | Isobe Taizan | 2456.67 | |
| White | Loss | Kamemoto Daichi | 2179.68 | |
| White | Win | Sato Kiyotomi | 2393.55 | |
| 6th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2005-10-22 | Rating | 2298.60 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Koyama Masayuki | 1728.40 |
| 2 | White | Loss | Sato Kiyotomi | 2393.59 |
| 3 | White | Win | Teshima Masakatsu | 1956.93 |
| 4 | Black | Win | Nakata Shinsuke | 1967.03 |
| 22nd Kanto Shineisen Tournament | ||||
| Date | 2005-09-11 | Rating | 2293.32 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Teshima Masakatsu | 1956.95 |
| 2 | White | Win | Tadokoro Hosai | 1925.84 |
| 3 | Black | Win | Tomobe Katsuhiro | 2074.26 |
| 4 | Black | Loss | Arita Nobuyoshi | 2341.77 |
| 5 | Black | Win | Kamemoto Daichi | 2168.80 |
| 43rd Meijinsen Qualification: East Japan 1st round | ||||
| Date | 2005-06-12 | Rating | 2278.04 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2150.99 |
| 2 | Black | Loss | Kudomi Takahiro | 2298.43 |
| 3 | White | Loss | Arita Nobuyoshi | 2323.83 |
| 4 | White | Win | Ohno Syunzo | 2073.65 |
| 22nd Kanto Championship | ||||
| Date | 2005-05-22 | Rating | 2275.32 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Mitsumori Masao | 2265.60 |
| 2 | White | Loss | Yamaguchi Yusui | 2561.21 |
| 3 | White | Win | Kudomi Takahiro | 2298.93 |
| 4 | Black | Loss | Maruta Koji | 2155.64 |
| 5 | White | Loss | Sato Kiyotomi | 2393.21 |
| 45th Suisei-sen Tournament | ||||
| Date | 2005-03-20 | Rating | 2268.17 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Muramatsu Yasuhiro | 1690.76 |
| 2 | White | Win | Arita Nobuyoshi | 2297.59 |
| 3 | White | Win | Sano Hiroyuki | 2134.33 |
| 4 | Black | Win | Kobayashi Koichi | 2092.55 |
| 8th Mikami Cup - A Class | ||||
| Date | 2005-01-23 | Rating | 2254.59 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Arita Nobuyoshi | 2285.21 |
| 2 | Black | Win | Nagumo Natsuhiko | 2055.15 |
| 3 | Black | Win | Kato Yasuhiro | 2023.20 |
| 4 | White | Loss | Nagao Noriaki | 2242.87 |
| 5 | Black | Win | Sato Kiyotomi | 2369.42 |
| 5th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2004-11-28 | Rating | 2237.05 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Mitsumori Masao | 2247.17 |
| 2 | Black | Loss | Tomobe Katsuhiro | 2029.97 |
| 3 | Black | Win | Mao Richu | 1771.47 |
| 4 | Black | Loss | Iwano Fumio | 2039.63 |
| 21st Kanto Shineisen Tournament | ||||
| Date | 2004-09-12 | Rating | 2229.58 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Shibata Satoru | 1707.93 |
| 2 | Black | Loss | Sato Kiyotomi | 2364.84 |
| 3 | Black | Win | Sato Takuma | 2168.43 |
| 4 | White | Draw | Tashiro Yuichi | 2287.01 |
| 5 | Black | Win | Hara Masao | 2069.53 |
| 7th Mikami Cup - A class | ||||
| Date | 2004-01-25 | Rating | 2194.03 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Win | Kawabe Tatsuya | 1878.88 |
| 5 | Black | Win | Itami Yoshiyuki | 2147.99 |
| 20th Kanto Shineisen Tournament | ||||
| Date | 2003-09-21 | Rating | 2166.59 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kato Yasuhiro | 2046.09 |
| 2 | White | Win | Maruta Hiroki | 1934.09 |
| 3 | White | Loss | Sato Takuma | 2136.33 |
| 4 | White | Win | Sasaki Miyu | 1936.92 |
| 5 | White | Loss | Itami Yoshiyuki | 2151.03 |