Tanaka Koichi (田中幸一)
Place: Fukuoka, Japan
Rating: 2386.51, Std: 352.73, Rank: -
First game: 2003-04-20, Last game: 2009-10-17
Top rating: 2386.51 (2009-10-17)
Games: 50, Wins: 32, Draws: 6, Losses: 12
Gy1: 0, Gy2: 0, Gy5: 0
| 4th Kyushu Championship | ||||
|---|---|---|---|---|
| Date | 2009-10-17 | Rating | 2386.51 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Hiwatashi Kikuma | 1811.50 |
| 2 | Black | Win | Kuga Akio | 2301.21 |
| 3 | Black | Draw | Fujii Naoki | 2094.69 |
| 3rd Kyushu Championship | ||||
| Date | 2008-10-26 | Rating | 2383.66 | |
| Round | Color | Result | Opponent | |
| A | White | Win | Sagara Satoshi | 1468.99 |
| A | White | Win | Yamaguchi Kazuhisa | 2114.09 |
| A | White | Win | Hiwatashi Kikuma | 1836.28 |
| A | White | Win | Fujii Naoki | 2109.11 |
| 2nd Fujinami Cup Tournament | ||||
| Date | 2007-02-25 | Rating | 2352.29 | |
| Round | Color | Result | Opponent | |
| A | White | Loss | Kuga Akio | 2318.82 |
| A | White | Win | Fujii Naoki | 2126.54 |
| A | Black | Win | Fujii Naoki | 2126.54 |
| A | Black | Loss | Kuga Akio | 2318.82 |
| Kyushu Championship | ||||
| Date | 2006-11-12 | Rating | 2354.66 | |
| Round | Color | Result | Opponent | |
| A | White | Win | Nishimura Toshio | 2347.51 |
| A | White | Loss | Yamaguchi Yusui | 2640.84 |
| A | White | Win | Kuga Akio | 2313.64 |
| A | Black | Win | Hiwatashi Kikuma | 1905.37 |
| Meijin-sen Qual, Kyushu area final round | ||||
| Date | 2006-06-18 | Rating | 2344.28 | |
| Round | Color | Result | Opponent | |
| 1 | Black | Win | Fujii Naoki | 2147.88 |
| 2 | White | Loss | Fujii Naoki | 2147.88 |
| 3 | Black | Win | Fujii Naoki | 2147.88 |
| 1st Kyushu Championship - Final A class | ||||
| Date | 2005-11-20 | Rating | 2335.70 | |
| Round | Color | Result | Opponent | |
| Black | Win | Fujii Naoki | 2170.00 | |
| Black | Win | Hiwatashi Kikuma | 1943.80 | |
| Black | Win | Fukushima Yoshitaka | 1989.42 | |
| Black | Draw | Yamaguchi Kazuhisa | 2020.76 | |
| The 43rd Meijin-sen Tournament | ||||
| Date | 2005-09-19 | Rating | 2332.25 | |
| Round | Color | Result | Opponent | |
| 1 | White | Loss | Sato Kiyotomi | 2391.42 |
| 2 | Black | Win | Kawate Kozo | 2172.09 |
| 3 | White | Win | Matsuura Hiroshi | 2348.39 |
| 4 | Black | Loss | Hasegawa Kazuto | 2701.74 |
| 5 | White | Draw | Yamaguchi Yusui | 2588.57 |
| 6 | White | Loss | Okabe Hiroshi | 2588.51 |
| 7 | Black | Loss | Ishitani Shin-ichi | 2397.58 |
| 8 | White | Draw | Takashima Junya | 2509.57 |
| 9 | White | Loss | Oosumi Yuuki | 2391.15 |
| 43rd Meijinsen Qualification: Kyushu - final round | ||||
| Date | 2005-05-15 | Rating | 2327.64 | |
| Round | Color | Result | Opponent | |
| Black | Win | Fujii Naoki | 2179.53 | |
| Black | Win | Sakashita Shoichi | 2173.65 | |
| Black | Win | Tanaka Tadanobu | 2056.54 | |
| 43rd Meijinsen Qualification: Kyushu 1st round | ||||
| Date | 2005-04-24 | Rating | 2325.10 | |
| Round | Color | Result | Opponent | |
| White | Win | Kawamoto Kenji | 1952.75 | |
| White | Draw | Yamaguchi Kazuhisa | 2022.29 | |
| White | Win | Tanaka Tadanobu | 2059.26 | |
| White | Win | Fujii Naoki | 2179.37 | |
| Kyushu Shinjinousen Tournament | ||||
| Date | 2005-03-13 | Rating | 2318.92 | |
| Round | Color | Result | Opponent | |
| White | Win | Yamashita Akiharu | 1659.41 | |
| White | Win | Urata Ueo | 1718.33 | |
| White | Win | Shimabukuro Wataru | 2003.46 | |
| White | Win | Kawamoto Kenji | 1955.81 | |
| 42nd Meijinsen Qualification: Kyushu 1st Group A | ||||
| Date | 2004-04-18 | Rating | 2259.46 | |
| Round | Color | Result | Opponent | |
| White | Loss | Fujinami Hisao | 2336.51 | |
| White | Draw | Sakashita Shoichi | 2199.75 | |
| White | Win | Nakamura Kenichi | 1895.70 | |
| 41st Meijinsen Qualification: Kyushu - 1st round Group B | ||||
| Date | 2003-04-20 | Rating | 2208.48 | |
| Round | Color | Result | Opponent | |
| White | Loss | Sakashita Shoichi | 2182.92 | |
| White | Loss | Kuga Akio | 2375.67 | |
| Black | Win | Sagara Satoshi | 1499.75 | |
| Black | Win | Kawano Masatoshi | 1775.60 | |
| Black | Win | Nishida Yasuji | 1932.97 | |