Kodama, Hironori
Current rating: 1542
Record: 43-42
| Grand Prix Shizuoka 2015 (KTK limited) | starting rating: 1545 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 679 | Yoshimura, Wataru (1470) | Won 2-1 | +161561 |
| 2sealed | 614 | Takahashi, Ryo (1427) | Won 2-0 | +161577 |
| 3sealed | 817 | Doi, Yuki (1552) | Won 2-0 | +181595 |
| 4sealed | 655 | Takaoka, Yusuke (1589) | Lost 0-2 | -191576 |
| 5sealed | 816 | Yajima, Tatsuaki (1670) | Won 2-0 | +201596 |
| 6sealed | 697 | Katagiri, Kazushi (1553) | Lost 1-2 | -191577 |
| 7sealed | 715 | Inuzuka, Satoshi (1658) | Lost 1-2 | -161561 |
| 8sealed | 779 | Matsushita, Masayoshi (1516) | Lost 0-2 | -191542 |
| top | average opponent: 1554record: 4-4 | new rating: 1542 | ||
| Grand Prix Kitakyushu 2013 (M14 standard) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 188 | Shirasaka, Shingo (1415) | Lost 0-2 | -201517 |
| 2standard | 397 | Mayaguchi, Masaru (1489) | Lost 0-2 | -191498 |
| 3standard | 544 | Koga, Masanori (1445) | Won 2-0 | +181516 |
| 4standard | 511 | Hamamoto, Yohei (1526) | Won 2-0 | +181534 |
| 5standard | 390 | Takahashi, Ryota (1475) | Won 2-1 | +171551 |
| 6standard | 205 | Komatsu, Satoru (1416) | Won 2-0 | +151566 |
| 7standard | 231 | Itakura, Yusuke (1441) | Won 2-0 | +161582 |
| 8standard | 100 | Kurihara, Tomo (1582) | Won 2-0 | +181600 |
| 9standard | 75 | Matsuya, Rei (1493) | Won 2-0 | +161616 |
| 10standard | 32 | Itani, Hiroshi (1666) | Lost 1-2 | -171599 |
| 11standard | 77 | Hirayama, Atsushi (1703) | Lost 1-2 | -161583 |
| 12standard | 73 | Toyota, Hiroki (1482) | Won 2-1 | +161599 |
| 13standard | 60 | Ishii, Taisuke (1785) | Lost 1-2 | -151584 |
| 14standard | 71 | Mizuta, Isamu (1520) | Lost 1-2 | -191565 |
| 15standard | 71 | Tokura, Mikihiro (1438) | Lost 1-2 | -201545 |
| top | average opponent: 1525record: 8-7 | new rating: 1545 | ||
| Grand Prix Sendai 2010 (ROE standard) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 313 | Kamei, Kazuhiko (1477) | Lost 0-2 | -191501 |
| 2standard | 334 | Goto, Yoshitaka (1481) | Won 2-0 | +181519 |
| 3standard | 266 | Korekawa, Takashi (1501) | Lost 1-2 | -191500 |
| 4standard | 331 | Kataoka, Asami (1566) | Won 2-1 | +191519 |
| 5standard | 281 | Ando, Koyo (1522) | Won 2-1 | +181537 |
| 6standard | 238 | Tagawa, Takashi (1527) | Won 2-1 | +181555 |
| 7standard | 183 | Sekine, Naoto (1554) | Lost 0-2 | -181537 |
| 8standard | 191 | Ariyoshi, Daisuke (1571) | Lost 1-2 | -171520 |
| 9standard | 157 | Ishihara, Susumu (1485) | Won 2-0 | +171537 |
| top | average opponent: 1520record: 5-4 | new rating: 1537 | ||
| Grand Prix Yokohama 2010 (extended) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 97 | Harada, Toshiya (1400) | Won 2-0 | +161554 |
| 2extended | 3 | Motomura, Shigeru (1677) | Lost 1-2 | -161538 |
| 3extended | 346 | Kitamura, Kazuhide (1499) | Lost 1-2 | -191519 |
| 4extended | 367 | Minamimura, Yukihiro (1632) | Won 2-0 | +201539 |
| 5extended | 364 | Hiraga, Masahiro (1450) | Lost 0-2 | -191520 |
| top | average opponent: 1532record: 2-3 | new rating: 1520 | ||
| Grand Prix Kitakyushu 2009 (ZEN limited) | starting rating: 1494 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 102 | Maeda, Tatsuki (1500) | Won 2-1 | +181512 |
| 2sealed | 63 | Nitta, Yuki (1470) | Won 2-1 | +171529 |
| 3sealed | 72 | Tsunemoto, Makoto (1496) | Won 2-1 | +171546 |
| 4sealed | 54 | Miyazono, Takeshi (1565) | Won 2-0 | +191565 |
| 5sealed | 12 | Hirabayashi, Kazuya (1793) | Lost 0-2 | -141551 |
| 6sealed | 62 | Kimura, Kazuki (1737) | Won 2-1 | +211572 |
| 7sealed | 32 | Ikawa, Yoshihiko (1599) | Lost 0-2 | -171555 |
| 8sealed | 42 | Katayama, Hidenori (1635) | Lost 0-2 | -171538 |
| top | average opponent: 1599record: 5-3 | new rating: 1538 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 77 | Sakurai, Yuu (1456) | Won 2-0 | +171484 |
| 2sealed | 2 | Narumiya, Ryuuma (1360) | Won 2-1 | +161500 |
| 3sealed | 31 | Yamaguchi, Tomomi (1538) | Lost 1-2 | -171483 |
| 4sealed | 204 | Kikuchi, Toshikazu (1518) | Won 2-1 | +191502 |
| 5sealed | 55 | Minamimura, Yukihiro (1599) | Lost 0-2 | -171485 |
| 6sealed | 169 | Marcik, Michal (1751) | Lost 0-2 | -131472 |
| 7sealed | 168 | Arai, Ryou (1503) | Won 2-1 | +191491 |
| 8sealed | 127 | Yamada, Yasuo (1511) | Won 2-1 | +181509 |
| 9sealed | 86 | Takao, Akinao (1662) | Lost 0-2 | -151494 |
| top | average opponent: 1544record: 5-4 | new rating: 1494 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1503 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 104 | Yoshida, Mitsutaka (1210) | Won 2-1 | +121515 |
| 2extended | 72 | Honda, Hirohito (1484) | Lost 0-2 | -181497 |
| 3extended | 177 | Kudo, Koichi (1648) | Won 2-0 | +201517 |
| 4extended | 91 | Nagase, Shougo (1466) | Lost 0-2 | -181499 |
| 5extended | 144 | Shinozuka, Takaaki (1609) | Lost 0-2 | -161483 |
| 6extended | 170 | Takeda, Kazuki (1596) | Lost 0-2 | -161467 |
| top | average opponent: 1502record: 2-4 | new rating: 1467 | ||
| Grand Prix Shizuoka 2008 (MOR standard) | starting rating: 1477 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 211 | Ushirosyouji, Takeshi (1438) | Won 2-0 | +171494 |
| 2standard | 131 | Izumi, Masaru (1476) | Lost 1-2 | -181476 |
| 3standard | 196 | Ooe, Hiroyuki (1500) | Won 2-1 | +181494 |
| 4standard | 138 | Nakano, Fumiki (1788) | Lost 0-2 | -131481 |
| 5standard | 286 | Ito, Atsushi (1412) | Lost 1-2 | -191462 |
| 6standard | 257 | Miyata, Shohei (1487) | Won 2-0 | +181480 |
| 7standard | 34 | Suzuki, Yasutomo (1534) | Won 2-0 | +191499 |
| 8standard | 82 | Okada, Kou (1659) | Lost 1-2 | -151484 |
| 9standard | 185 | Mori, Shouta (1499) | Won 2-0 | +191503 |
| top | average opponent: 1533record: 5-4 | new rating: 1503 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1449 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 298 | Mochiki, Kazuto (1500) | Won 2-1 | +181467 |
| 2standard | 46 | Miyako, Takahiro (1483) | Lost 0-2 | -171450 |
| 3standard | 150 | Kiyonaga, Sho (1500) | Lost 0-2 | -171433 |
| 4standard | 360 | Horiuchi, Shouta (1483) | Lost 1-2 | -171416 |
| 5standard | 324 | Tokura, Mikihiro (1379) | Won 2-1 | +171433 |
| 6standard | 245 | Yanagisawa, Tadahiro (1592) | Lost 1-2 | -151418 |
| 7standard | 241 | Sato, Jungo (1463) | Won 2-1 | +191437 |
| 8standard | 193 | Matumoto, Takafumi (1480) | Won 2-1 | +181455 |
| 9standard | 146 | Kubouchi, Naoki (1629) | Won 2-0 | +221477 |
| top | average opponent: 1501record: 5-4 | new rating: 1477 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 181 | Lee, Hyun Wook (1508) | Lost 0-2 | -181482 |
| 2block | 343 | Ichikawa, Yuichi (1482) | Lost 1-2 | -181464 |
| 3block | 334 | Ootake, Tsuyoshi (1468) | Lost 0-2 | -181446 |
| 5block | 344 | Takahashi, Naoyuki (1466) | Won 2-0 | +191465 |
| 6block | 290 | Yamaguchi, Kei (1482) | Lost 1-2 | -181447 |
| 7block | 283 | Sugiyama, Kouichi (1522) | Lost 0-2 | -171430 |
| 8block | 247 | Hirota, Kiyokazu (1445) | Won 2-0 | +191449 |
| top | average opponent: 1482record: 2-5 | new rating: 1449 | ||