Koyama Jun (小山純)
Place: Tokyo, Japan
Rating: 2572.68, Std: 181.54, Rank: 66
First game: 2003-09-21, Last game: 2022-05-22
Top rating: 2638.59 (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 | 2572.68 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Tomobe Katsuhiro | 2100.76 |
| 2 | White | Win | Maruta Hiroki | 2190.34 |
| 3 | Black | Draw | Fujita Maiko | 2400.42 |
| 4 | Black | Draw | Yokoyama Shota | 2434.10 |
| 57 Meijinsen Tournament | ||||
| Date | 2019-09-16 | Rating | 2600.65 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Inoue Fumiya | 2409.87 |
| 2 | White | Loss | Kamiya Shunsuke | 2815.76 |
| 3 | Black | Loss | Kawamura Norihiko | 2675.84 |
| 4 | White | Win | Matsuura Hiroshi | 2362.18 |
| 5 | Black | Loss | Nakayama Tomoharu | 2818.31 |
| 6 | White | Loss | Kawano Takahisa | 2448.29 |
| 7 | White | Loss | Hasegawa Kazuto | 2606.37 |
| 8 | White | Win | Okabe Hiroshi | 2717.76 |
| 9 | Black | Win | Ishitani Shin-ichi | 2375.39 |
| World Championship 2019, AT | ||||
| Date | 2019-08-10 | Rating | 2606.68 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Mei Fan | 2697.11 |
| 2 | Black | Win | Oll Aivo | 2738.85 |
| 3 | Black | Win | Inoue Fumiya | 2414.10 |
| 4 | Black | Win | Epifanov Dmitry | 2665.09 |
| 5 | Black | Loss | Nakayama Tomoharu | 2812.89 |
| 6 | Black | Win | Okabe Hiroshi | 2713.19 |
| 7 | Black | Draw | Kamiya Shunsuke | 2812.97 |
| 8 | Black | Draw | Gardström Petter | 2693.57 |
| 9 | White | Loss | Fedotov Denis | 2675.46 |
| 10 | White | Loss | Cao Dong | 2773.69 |
| 11 | Black | Loss | Sushkov Vladimir | 2835.32 |
| World Championship 2019, QT | ||||
| Date | 2019-08-02 | Rating | 2606.60 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sandstrom Richard | 2368.80 |
| 2 | White | Win | Li Xiaoqing | 2650.65 |
| 3 | Black | Loss | Mesila Villem | 2663.15 |
| 4 | Black | Win | Wai Chan Keong | 2777.58 |
| 5 | Black | Draw | Fedotov Denis | 2678.10 |
| 6 | White | Loss | Gardström Petter | 2695.26 |
| 7 | White | Win | Topkin Georg-Romet | 2621.01 |
| 57 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2019-06-23 | Rating | 2600.34 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Hiroki | 2177.79 |
| 2 | Black | Win | Maruta Koji | 2132.75 |
| 3 | White | Win | Inoue Fumiya | 2417.68 |
| 4 | Black | Win | Kusajima Masato | 2253.71 |
| 5 | White | Win | Ono Takayuki | 2390.52 |
| 14th All Japan Championship | ||||
| Date | 2019-03-31 | Rating | 2580.17 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Fujita Maiko | 2280.74 |
| 2 | Black | Win | Chigira Makoto | 2086.21 |
| 3 | White | Draw | Inoue Fumiya | 2418.56 |
| 4 | White | Win | Ono Takayuki | 2389.52 |
| 5 | Black | Loss | Nakamura Shigeru | 2987.87 |
| 6 | Black | Loss | Okabe Hiroshi | 2692.80 |
| 19 Renju Emperor Tournament Kanto area 1st round | ||||
| Date | 2018-10-21 | Rating | 2562.81 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1919.51 |
| 2 | White | Loss | Iwano Fumio | 2239.84 |
| 3 | White | Draw | Ishitani Shin-ichi | 2419.21 |
| 4 | White | Loss | Inoue Fumiya | 2397.57 |
| 56 Meijinsen Tournament | ||||
| Date | 2018-09-17 | Rating | 2565.78 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kuga Akio | 2414.73 |
| 2 | Black | Loss | Matsuura Hiroshi | 2351.71 |
| 3 | White | Win | Okabe Hiroshi | 2695.16 |
| 5 | Black | Win | Kawamura Norihiko | 2658.13 |
| 6 | Black | Loss | Ishitani Shin-ichi | 2422.08 |
| 7 | Black | Loss | Kamiya Shunsuke | 2792.40 |
| 8 | White | Loss | Nakamura Shigeru | 2993.07 |
| 9 | White | Win | Hasegawa Kazuto | 2572.35 |
| 35 Kanto Championship | ||||
| Date | 2018-07-16 | Rating | 2568.84 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Loss | Sato Kiyotomi | 2437.10 |
| 5 | White | Win | Iwano Fumio | 2241.34 |
| 6 | White | Win | Fujikawa Masaki | 2093.77 |
| 56 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2018-06-25 | Rating | 2571.00 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2302.80 |
| 2 | Black | Win | Sato Kiyotomi | 2437.75 |
| 3 | White | Loss | Ono Takayuki | 2384.36 |
| 56 Meijinsen Qualification Kanto area 1st round | ||||
| Date | 2018-05-13 | Rating | 2576.62 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Mitsumori Masao | 2326.54 |
| 2 | Black | Win | Iwano Fumio | 2251.06 |
| 3 | Black | Win | Maruta Hiroki | 2147.86 |
| 4 | White | Win | Sato Kiyotomi | 2437.07 |
| Team World Championship 2018 | ||||
| Date | 2018-05-05 | Rating | 2577.93 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Lillemaa Argo | 2191.12 |
| 2 | Black | Win | Purk Andry | 2630.16 |
| 4 | White | Win | Kachaev Denis | 2536.51 |
| 5 | Black | Win | Nikonov Konstantin | 2686.00 |
| 6 | Black | Win | Liu Yang | 2629.62 |
| 7 | White | Win | Lavrik-Karmazin Maksim | 2493.12 |
| 8 | White | Draw | Artemyev Sergey | 2569.73 |
| 9 | Black | Loss | Liu Yang | 2629.62 |
| 10 | White | Loss | Purk Andry | 2630.16 |
| 13th All Japan Championship | ||||
| Date | 2018-01-28 | Rating | 2573.74 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Ono Takayuki | 2377.99 |
| 2 | White | Loss | Ishitani Shin-ichi | 2412.13 |
| 3 | White | Loss | Miyamoto Syunju | 2265.12 |
| 5 | White | Win | Sato Kiyotomi | 2428.52 |
| 6 | Black | Win | Maruta Hiroki | 2140.60 |
| 18 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2017-12-17 | Rating | 2581.02 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Sato Kiyotomi | 2431.47 |
| 2 | Black | Win | Miyamoto Syunju | 2270.98 |
| 3 | Black | Loss | Nakamura Shigeru | 2954.43 |
| 4 | Black | Loss | Okabe Hiroshi | 2714.33 |
| 5 | White | Win | Kusajima Masato | 2299.32 |
| 18 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2017-11-01 | Rating | 2590.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Koyama Akihiro | 1959.25 |
| 2 | White | Draw | Okabe Hiroshi | 2715.93 |
| 3 | Black | Win | Ono Takayuki | 2373.21 |
| 4 | White | Win | Kusajima Masato | 2295.56 |
| World Championship 2017, BT | ||||
| Date | 2017-08-12 | Rating | 2602.30 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Rahumägi Brenet | 2324.58 |
| 2 | Black | Win | Sun In | 2428.20 |
| 3 | Black | Draw | Liu Yang | 2665.70 |
| 4 | Black | Win | Lan Zhiren | 2632.20 |
| 5 | Black | Win | Yang Yu-Hsiung | 2427.38 |
| 6 | Black | Loss | Tang Kai Lam | 2766.89 |
| 7 | Black | Win | Topkin Georg-Romet | 2519.41 |
| 8 | White | Win | Huang Yen-Hua | 2457.44 |
| 9 | Black | Loss | Okabe Hiroshi | 2715.50 |
| World Championship 2017, QT | ||||
| Date | 2017-08-05 | Rating | 2602.22 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Rahumägi Brenet | 2324.44 |
| 2 | White | Win | Sushkov Vladimir | 2869.82 |
| 3 | Black | Loss | Lan Zhiren | 2631.34 |
| 4 | Black | Loss | Mei Fan | 2691.08 |
| 5 | White | Draw | Okabe Hiroshi | 2715.60 |
| 6 | Black | Win | Kim Su Chan | 2303.25 |
| 7 | Black | Win | Lu Wei-Yuan | 2598.68 |
| 55 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2017-06-11 | Rating | 2595.72 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tomobe Katsuhiro | 2155.92 |
| 2 | White | Loss | Tamada Yoichi | 2533.31 |
| 3 | White | Loss | Ono Takayuki | 2371.21 |
| 4 | Black | Win | Miyamoto Syunju | 2268.06 |
| 5 | Black | Loss | Sato Kiyotomi | 2466.06 |
| 12th All Japan Championship | ||||
| Date | 2017-03-26 | Rating | 2602.41 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Kusajima Masato | 2284.69 |
| 2 | Black | Loss | Nakamura Shigeru | 2961.32 |
| 3 | Black | Win | Ishitani Shin-ichi | 2389.54 |
| 4 | Black | Win | Nakayama Tomoharu | 2789.52 |
| 5 | Black | Loss | Kamiya Shunsuke | 2784.07 |
| 6 | White | Loss | Tachi Masaya | 2526.16 |
| 20 New Year (Mikami) Cup | ||||
| Date | 2017-01-22 | Rating | 2606.97 | |
| Round | Color | Result | Opponent | |
| S2 | Black | Win | Sato Kiyotomi | 2487.39 |
| S3 | Black | Loss | Nakamura Shigeru | 2959.71 |
| S4 | Black | Win | Ishitani Shin-ichi | 2389.60 |
| S5 | Black | Loss | Okabe Hiroshi | 2714.97 |
| 17 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2016-11-23 | Rating | 2610.71 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Demachi Koichiro | 1928.16 |
| 2 | Black | Loss | Okabe Hiroshi | 2709.47 |
| 3 | Black | Win | Iwano Fumio | 2264.88 |
| 4 | White | Win | Ishitani Shin-ichi | 2396.25 |
| 54 Meijinsen Tournament | ||||
| Date | 2016-09-19 | Rating | 2614.73 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Matsuura Hiroshi | 2358.58 |
| 2 | Black | Loss | Kamiya Shunsuke | 2756.00 |
| 3 | White | Draw | Hasegawa Kazuto | 2635.61 |
| 4 | White | Draw | Iio Yoshihiro | 2557.22 |
| 5 | Black | Win | Tanaka Toshiki | 2439.16 |
| 6 | Black | Draw | Nakayama Tomoharu | 2773.62 |
| 7 | Black | Draw | Maruyama Yasushi | 2287.02 |
| 8 | Black | Win | Kuga Akio | 2360.15 |
| 9 | White | Loss | Okabe Hiroshi | 2714.05 |
| 33 Kanto Championship | ||||
| Date | 2016-07-31 | Rating | 2619.12 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kato Yasuhiro | 2038.29 |
| 2 | Black | Loss | Nakamura Shigeru | 2950.98 |
| 3 | Black | Loss | Okabe Hiroshi | 2718.28 |
| 4 | Black | Win | Nakamura Souta | 2271.19 |
| 5 | Black | Draw | Nakayama Tomoharu | 2772.60 |
| 6 | Black | Draw | Ishitani Shin-ichi | 2383.42 |
| 54 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2016-06-12 | Rating | 2625.73 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kusajima Masato | 2264.85 |
| 2 | Black | Win | Kamiya Shunsuke | 2723.41 |
| 3 | White | Win | Tamada Yoichi | 2564.97 |
| 4 | Black | Draw | Mitsumori Masao | 2349.94 |
| 5 | White | Draw | Okabe Hiroshi | 2720.62 |
| 19 Mikami Cup | ||||
| Date | 2016-03-13 | Rating | 2628.27 | |
| Round | Color | Result | Opponent | |
| S1 | White | Win | Ishitani Shin-ichi | 2388.36 |
| S2 | Black | Loss | Nakamura Shigeru | 2937.05 |
| S3 | White | Win | Kusajima Masato | 2261.87 |
| S4 | Black | Loss | Okabe Hiroshi | 2716.52 |
| 16th Kanto Renju Emperor Tournament Final | ||||
| Date | 2016-02-14 | Rating | 2629.70 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Nakayama Tomoharu | 2776.19 |
| 2 | White | Loss | Nakayama Tomoharu | 2776.19 |
| 11th All Japan Championship | ||||
| Date | 2016-01-11 | Rating | 2633.72 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2118.59 |
| 2 | Black | Win | Nakamura Souta | 2298.86 |
| 3 | Black | Win | Okabe Hiroshi | 2711.50 |
| 4 | Black | Loss | Nakayama Tomoharu | 2774.64 |
| 5 | White | Loss | Sato Kiyotomi | 2533.51 |
| 6 | White | Draw | Tamada Yoichi | 2568.95 |
| 16 Kanto Renju Emperor Tournament 2nd round | ||||
| Date | 2015-12-13 | Rating | 2637.96 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Sato Kiyotomi | 2533.14 |
| 2 | White | Win | Ono Takayuki | 2321.72 |
| 3 | Black | Loss | Okabe Hiroshi | 2711.19 |
| 4 | Black | Draw | Nakayama Tomoharu | 2772.86 |
| 5 | White | Win | Nakamura Shigeru | 2920.21 |
| 16 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2015-11-15 | Rating | 2638.59 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ishitani Shin-ichi | 2390.79 |
| 2 | Black | Win | Sato Kiyotomi | 2530.26 |
| 3 | Black | Win | Okabe Hiroshi | 2712.10 |
| 4 | Black | Win | Ono Takayuki | 2322.59 |
| 53 Meijinsen Tournament | ||||
| Date | 2015-09-22 | Rating | 2632.07 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Hasegawa Kazuto | 2669.34 |
| 2 | Black | Win | Oosumi Yuuki | 2770.02 |
| 3 | White | Win | Ishitani Shin-ichi | 2389.08 |
| 4 | Black | Draw | Nakayama Tomoharu | 2766.02 |
| 5 | White | Loss | Kawamura Norihiko | 2620.50 |
| 6 | White | Loss | Tamada Yoichi | 2579.40 |
| 7 | Black | Draw | Iio Yoshihiro | 2528.34 |
| 8 | White | Win | Matsuura Hiroshi | 2396.32 |
| 9 | Black | Draw | Okabe Hiroshi | 2714.41 |
| World Championship 2015, BT | ||||
| Date | 2015-08-12 | Rating | 2628.45 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Huang Xiuyi | 2186.15 |
| 2 | Black | Loss | Miyagawa Junzo | 2243.73 |
| 3 | Black | Win | Topkin Georg-Romet | 2334.17 |
| 4 | Black | Win | Wang Chih-Kung | 2338.72 |
| 5 | Black | Loss | Sirategyan Karen | 2437.43 |
| 6 | Black | Win | Ishitani Shin-ichi | 2391.76 |
| 7 | Black | Win | Lavrik-Karmazin Maksim | 2288.62 |
| 8 | White | Win | Mano Yoshihisa | 2360.56 |
| 9 | White | Draw | Nakayama Tomoharu | 2762.23 |
| World Championship 2015, QT | ||||
| Date | 2015-08-05 | Rating | 2628.28 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Topkin Georg-Romet | 2332.75 |
| 2 | Black | Win | Nakayama Tomoharu | 2760.83 |
| 3 | Black | Loss | Kamiya Shunsuke | 2702.11 |
| 4 | White | Draw | Wang Qingqing | 2623.99 |
| 5 | Black | Win | Huang Yen-Hua | 2472.66 |
| 6 | Black | Loss | Epifanov Dmitry | 2705.12 |
| 7 | Black | Win | Lin Liu-Min | 2565.38 |
| Kanto Championship | ||||
| Date | 2015-07-20 | Rating | 2626.58 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2100.92 |
| 2 | Black | Win | Nakamura Shigeru | 2902.27 |
| 3 | Black | Draw | Okabe Hiroshi | 2723.37 |
| 4 | White | Win | Iwano Fumio | 2247.76 |
| 5 | Black | Loss | Nakayama Tomoharu | 2760.05 |
| 6 | Black | Win | Zhao Jiadong | 2133.66 |
| 53 Meijinsen Qualification East Japan area 2nd round | ||||
| Date | 2015-06-14 | Rating | 2619.33 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Tamada Yoichi | 2587.30 |
| 2 | Black | Win | Sato Kiyotomi | 2502.77 |
| 3 | White | Win | Ono Takayuki | 2321.18 |
| 5 | Black | Draw | Kamiya Shunsuke | 2688.95 |
| 6 | White | Win | Nakamura Souta | 2290.76 |
| 53 Meijinsen Qualification East Japan area 1st round | ||||
| Date | 2015-05-10 | Rating | 2611.60 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Mitsumori Masao | 2322.58 |
| 2 | Black | Win | Iwano Fumio | 2242.32 |
| 3 | Black | Win | Nakamura Souta | 2289.03 |
| 4 | White | Loss | Kamiya Shunsuke | 2683.15 |
| 10th All Japan Championship | ||||
| Date | 2015-03-29 | Rating | 2602.31 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2089.75 |
| 2 | White | Loss | Kamiya Shunsuke | 2672.26 |
| 3 | Black | Win | Kato Yasuhiro | 2058.77 |
| 4 | Black | Win | Mitsumori Masao | 2321.11 |
| 5 | Black | Loss | Ishitani Shin-ichi | 2421.59 |
| 6 | Black | Win | Tanizaki Ryusuke | 2198.39 |
| 12 Kanto Renju Emperor Tournament 1st round | ||||
| Date | 2011-10-23 | Rating | 2435.75 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Oosumi Yuuki | 2768.82 |
| 2 | White | Win | Suzuki Rin | 1988.81 |
| 3 | White | Loss | Isobe Taizan | 2419.29 |
| 4 | White | Loss | Fukui Nobuhiro | 2470.29 |
| 49 Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2011-06-12 | Rating | 2433.31 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Loss | Isobe Taizan | 2406.48 |
| 2 | Black | Win | Kudomi Takahiro | 2411.03 |
| 3 | Black | Loss | Nakayama Tomoharu | 2551.63 |
| 4 | Black | Win | Ono Takayuki | 2394.26 |
| ex | Black | Loss | Nakayama Tomoharu | 2551.63 |
| 28th Kanto Shineisen Tournament | ||||
| Date | 2011-04-17 | Rating | 2434.14 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kon Akira | 2005.27 |
| 2 | Black | Win | Kamiya Shunsuke | 2409.79 |
| 3 | White | Win | Ozawa Tetsushi | 2090.29 |
| 4 | White | Loss | Nakayama Tomoharu | 2540.22 |
| 5 | Black | Win | Tomobe Katsuhiro | 2227.38 |
| 5 | White | Loss | Kamiya Shunsuke | 2409.79 |
| 14th Mikami Cup Tournament | ||||
| Date | 2011-01-30 | Rating | 2435.19 | |
| Round | Color | Result | Opponent | |
| A1 | Black | Win | Kon Akira | 1997.93 |
| A2 | White | Loss | Iwano Fumio | 2129.61 |
| A3 | Black | Win | Matsuoka Teruo | 1987.33 |
| A4 | Black | Win | Kise Katsumi | 2518.62 |
| A5 | Black | Win | Isobe Seiji | 2022.07 |
| 8th Middle-dan Players Tournament | ||||
| Date | 2009-08-30 | Rating | 2442.55 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Yamamoto Yasuhiro | 2146.10 |
| 2 | White | Win | Gakumazawa Hideaki | 2137.44 |
| 3 | Black | Loss | Sato Kiyotomi | 2432.15 |
| 4 | White | Win | Miyagawa Junzo | 2200.52 |
| 5 | White | Draw | Maruyama Yasushi | 2260.42 |
| 6 | Black | Win | Ono Takayuki | 2401.33 |
| 46th Meijinsen Qualification East-Japan area 2nd round | ||||
| Date | 2008-07-13 | Rating | 2439.92 | |
| Round | Color | Result | Opponent | |
| White | Loss | Kawamura Norihiko | 2654.78 | |
| White | Loss | Sato Kiyotomi | 2432.57 | |
| White | Win | Arita Nobuyoshi | 2391.13 | |
| White | Loss | Isobe Taizan | 2412.93 | |
| Black | Win | Nagao Noriaki | 2259.36 | |
| 46th Meijinsen Qualification East-Japan area 1st round | ||||
| Date | 2008-06-15 | Rating | 2441.55 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Sato Kiyotomi | 2427.15 |
| 2 | White | Win | Tanno Yoshitaka | 2120.39 |
| 3 | Black | Win | Ono Takayuki | 2397.57 |
| 4 | Black | Win | Kudomi Takahiro | 2337.35 |
| 25th Kanto Shineisen Tournament | ||||
| Date | 2008-04-13 | Rating | 2435.39 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Fujikawa Masaki | 2102.26 |
| 2 | Black | Win | Watanabe Tatsuya | 2154.67 |
| 3 | White | Win | Tomobe Katsuhiro | 2062.77 |
| 4 | Black | Win | Iwano Fumio | 2187.54 |
| 5 | Black | Draw | Ono Takayuki | 2393.87 |
| 2nd All Japan Championship (WC Qualification) | ||||
| Date | 2007-03-25 | Rating | 2374.90 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Kuramoto Hideharu | 1886.75 |
| 2 | Black | Loss | Yamaguchi Yusui | 2647.11 |
| 3 | Black | Loss | Iio Yoshihiro | 2520.47 |
| 4 | White | Win | Maruta Hiroki | 2023.18 |
| 5 | White | Win | Tanno Yoshitaka | 2127.94 |
| 6 | Black | Win | Ono Takayuki | 2341.24 |
| 10th Mikami Cup Tournament, A-class | ||||
| Date | 2007-01-28 | Rating | 2363.95 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Matsuoka Teruo | 1873.49 |
| 2 | White | Loss | Iwano Fumio | 2142.04 |
| 3 | Black | Win | Maruta Hiroki | 2019.97 |
| 4 | White | Win | Tomobe Katsuhiro | 2054.34 |
| 5 | Black | Win | Kobayashi Koichi | 2097.34 |
| 23rd Kanto Shinei Tournament | ||||
| Date | 2006-09-10 | Rating | 2341.00 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Maruta Hiroki | 2001.91 |
| 1 | Black | Win | Teshima Masakatsu | 1951.12 |
| 2 | Black | Loss | Tanizaki Ryusuke | 2125.56 |
| 3 | Black | Win | Matsuoka Teruo | 1852.45 |
| 4 | White | Win | Iwano Fumio | 2109.26 |
| 5 | White | Loss | Watanabe Tatsuya | 2133.96 |
| Meijin-sen Qual, East Japan area 1st round | ||||
| Date | 2006-06-18 | Rating | 2337.09 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2111.23 |
| 2 | White | Win | Mitsumori Masao | 2251.71 |
| 3 | Black | Win | Kudomi Takahiro | 2282.78 |
| 4 | Black | Loss | Kamemoto Daichi | 2205.57 |
| 23rd Kanto Championship | ||||
| Date | 2006-05-21 | Rating | 2334.75 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kawamura Norihiko | 2662.38 |
| 2 | White | Win | Tanizaki Ryusuke | 2112.42 |
| 3 | Black | Win | Kudomi Takahiro | 2281.20 |
| 4 | White | Win | Isobe Taizan | 2409.63 |
| 5 | White | Loss | Nakamura Shigeru | 2844.97 |
| 46th Suisei-sen tournament final round | ||||
| Date | 2006-04-16 | Rating | 2327.68 | |
| Round | Color | Result | Opponent | |
| White | Win | Itami Yoshiyuki | 2156.54 | |
| White | Win | Nagao Noriaki | 2220.13 | |
| White | Loss | Kato Yasuhiro | 2050.30 | |
| White | Win | Hara Masao | 2076.50 | |
| Black | Loss | Ono Takayuki | 2303.35 | |
| 1st All Japan Championship | ||||
| Date | 2006-03-26 | Rating | 2324.73 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Tadokoro Hosai | 1929.30 |
| 2 | Black | Loss | Isobe Taizan | 2423.89 |
| 3 | Black | Loss | Tanizaki Ryusuke | 2111.36 |
| 4 | White | Win | Itami Yoshiyuki | 2159.45 |
| 5 | Black | Win | Sato Kiyotomi | 2409.07 |
| 6 | White | Win | Miyoshi Takeo | 2273.36 |
| 46th Suisei-sen Tournament - 1st round | ||||
| Date | 2006-03-12 | Rating | 2322.32 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujikawa Masaki | 2028.35 |
| 2 | White | Win | Tadokoro Hosai | 1928.76 |
| 3 | White | Loss | Nagao Noriaki | 2222.12 |
| 4 | White | Win | Tomobe Katsuhiro | 2089.66 |
| 9th Mikami Cup - A Class | ||||
| Date | 2006-01-29 | Rating | 2315.95 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Iwano Fumio | 2072.80 |
| 2 | White | Win | Teshima Masakatsu | 1956.22 |
| 3 | White | Loss | Ono Takayuki | 2302.54 |
| 4 | White | Win | Nakata Shinsuke | 1974.98 |
| 5 | Black | Win | Watanabe Tatsuya | 2132.43 |
| 37th Kyoto Classified - group 1 | ||||
| Date | 2005-11-13 | Rating | 2302.81 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Ozawa Tetsushi | 2014.34 |
| 2 | White | Win | Itami Yoshiyuki | 2178.46 |
| 3 | White | Loss | Oosumi Yuuki | 2403.40 |
| 4 | White | Win | Hayashi Koji | 2004.53 |
| 5 | Black | Win | Ono Takayuki | 2294.87 |
| 6 | White | Loss | Shinoda Kiyoshi | 2345.28 |
| 6th Kanto Renju Emperor Tournament - Semifinal | ||||
| Date | 2005-10-23 | Rating | 2298.45 | |
| Round | Color | Result | Opponent | |
| White | Loss | Yamaguchi Yusui | 2594.28 | |
| White | Loss | Okabe Hiroshi | 2590.30 | |
| White | Loss | Isobe Taizan | 2456.35 | |
| White | Loss | Kamemoto Daichi | 2179.41 | |
| White | Win | Sato Kiyotomi | 2393.25 | |
| 6th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2005-10-22 | Rating | 2298.31 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Koyama Masayuki | 1728.14 |
| 2 | White | Loss | Sato Kiyotomi | 2393.29 |
| 3 | White | Win | Teshima Masakatsu | 1956.66 |
| 4 | Black | Win | Nakata Shinsuke | 1966.79 |
| 22nd Kanto Shineisen Tournament | ||||
| Date | 2005-09-11 | Rating | 2293.04 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Teshima Masakatsu | 1956.68 |
| 2 | White | Win | Tadokoro Hosai | 1925.56 |
| 3 | Black | Win | Tomobe Katsuhiro | 2073.98 |
| 4 | Black | Loss | Arita Nobuyoshi | 2341.48 |
| 5 | Black | Win | Kamemoto Daichi | 2168.54 |
| 43rd Meijinsen Qualification: East Japan 1st round | ||||
| Date | 2005-06-12 | Rating | 2277.77 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Maruta Koji | 2150.71 |
| 2 | Black | Loss | Kudomi Takahiro | 2298.15 |
| 3 | White | Loss | Arita Nobuyoshi | 2323.55 |
| 4 | White | Win | Ohno Syunzo | 2073.37 |
| 22nd Kanto Championship | ||||
| Date | 2005-05-22 | Rating | 2275.05 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Mitsumori Masao | 2265.30 |
| 2 | White | Loss | Yamaguchi Yusui | 2560.89 |
| 3 | White | Win | Kudomi Takahiro | 2298.64 |
| 4 | Black | Loss | Maruta Koji | 2155.37 |
| 5 | White | Loss | Sato Kiyotomi | 2392.93 |
| 45th Suisei-sen Tournament | ||||
| Date | 2005-03-20 | Rating | 2267.91 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Muramatsu Yasuhiro | 1690.56 |
| 2 | White | Win | Arita Nobuyoshi | 2297.32 |
| 3 | White | Win | Sano Hiroyuki | 2134.55 |
| 4 | Black | Win | Kobayashi Koichi | 2092.27 |
| 8th Mikami Cup - A Class | ||||
| Date | 2005-01-23 | Rating | 2254.33 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Draw | Arita Nobuyoshi | 2284.94 |
| 2 | Black | Win | Nagumo Natsuhiko | 2054.98 |
| 3 | Black | Win | Kato Yasuhiro | 2022.94 |
| 4 | White | Loss | Nagao Noriaki | 2242.62 |
| 5 | Black | Win | Sato Kiyotomi | 2369.14 |
| 5th Kanto Renju Emperor Tournament - 1st round | ||||
| Date | 2004-11-28 | Rating | 2236.80 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Mitsumori Masao | 2246.86 |
| 2 | Black | Loss | Tomobe Katsuhiro | 2029.71 |
| 3 | Black | Win | Mao Richu | 1771.37 |
| 4 | Black | Loss | Iwano Fumio | 2039.41 |
| 21st Kanto Shineisen Tournament | ||||
| Date | 2004-09-12 | Rating | 2229.33 | |
| Round | Color | Result | Opponent | |
| 1 | White | Win | Shibata Satoru | 1707.47 |
| 2 | Black | Loss | Sato Kiyotomi | 2364.57 |
| 3 | Black | Win | Sato Takuma | 2168.20 |
| 4 | White | Draw | Tashiro Yuichi | 2286.73 |
| 5 | Black | Win | Hara Masao | 2069.29 |
| 7th Mikami Cup - A class | ||||
| Date | 2004-01-25 | Rating | 2193.79 | |
| Round | Color | Result | Opponent | |
| 4 | Black | Win | Kawabe Tatsuya | 1878.72 |
| 5 | Black | Win | Itami Yoshiyuki | 2147.77 |
| 20th Kanto Shineisen Tournament | ||||
| Date | 2003-09-21 | Rating | 2166.36 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Kato Yasuhiro | 2045.85 |
| 2 | White | Win | Maruta Hiroki | 1933.87 |
| 3 | White | Loss | Sato Takuma | 2136.10 |
| 4 | White | Win | Sasaki Miyu | 1936.71 |
| 5 | White | Loss | Itami Yoshiyuki | 2150.82 |