Ogawa, Kazuki
Current rating: 1503
Record: 18-19
| Grand Prix Yokohama 2010 (extended) | starting rating: 1523 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 287 | Nishino, Tomoyasu (1500) | Won 2-0 | +181541 |
| 2extended | 86 | Chi, Tatsuya (1617) | Lost 0-2 | -171524 |
| 3extended | 252 | iwasaki, hiromi (1499) | Won 2-1 | +181542 |
| 4extended | 301 | Hagiwara, Yuuta (1452) | Lost 0-2 | -201522 |
| 5extended | 307 | Goto, Kosuke (1676) | Won 2-0 | +211543 |
| 6extended | 224 | Yonesu, Yuuki (1518) | Lost 0-2 | -191524 |
| 7extended | 246 | Fujimori, Masayoshi (1474) | Lost 0-2 | -191505 |
| 8extended | 29 | Kuramochi, Takashi (1333) | Won 2-0 | +151520 |
| 9extended | 143 | Tanaka, Kouichi (1540) | Lost 1-2 | -171503 |
| top | average opponent: 1512record: 4-5 | new rating: 1503 | ||
| Grand Prix Niigata 2009 (M10 limited) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 190 | Miyazaki, Rintarou (1521) | Won 2-0 | +181537 |
| 2sealed | 73 | Ikeda, Akio (1598) | Lost 0-2 | -171520 |
| 3sealed | 214 | Oomori, Kazuki (1641) | Won 2-1 | +201540 |
| 4sealed | 209 | Sekine, Nobuaki (1505) | Won 2-0 | +171557 |
| 5sealed | 122 | Lei, Benjamin (1543) | Lost 0-2 | -181539 |
| 6sealed | 174 | Hirose, Yuuki (1555) | Lost 0-2 | -171522 |
| 7sealed | 171 | Kamanaka, Yuuhei (1468) | Won 2-0 | +171539 |
| 8sealed | 119 | Fukata, Takamasa (1676) | Lost 0-2 | -161523 |
| top | average opponent: 1564record: 4-4 | new rating: 1523 | ||
| Grand Prix Kobe 2009 (extended) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 96 | Katou, Takayoshi (1500) | Won 2-1 | +181489 |
| 2extended | 3 | Masuno, Ryosuke (1779) | Lost 0-2 | -131476 |
| 3extended | 134 | Imamura, Taichirou (1506) | Won 2-0 | +191495 |
| 4extended | 111 | Arita, Ryuichi (1800) | Lost 1-2 | -131482 |
| 5extended | 197 | Iritani, Kenichi (1500) | Lost 1-2 | -171465 |
| 6extended | 183 | Yamato, Takayuki (1482) | Won 2-1 | +181483 |
| 7extended | 167 | Powell, Zeilend (1475) | Won 2-0 | +181501 |
| 8extended | 142 | Tamura, Youhei (1502) | Won 2-1 | +181519 |
| top | average opponent: 1568record: 5-3 | new rating: 1519 | ||
| Grand Prix Kyoto 2007 (PLC standard) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 77 | Tokura, Mikihiro (1409) | Won 2-1 | +171484 |
| 2standard | 79 | Minami, Masashi (1677) | Lost 1-2 | -151469 |
| 3standard | 238 | Takagi, Yui (1518) | Lost 0-2 | -171452 |
| 4standard | 329 | Matsuyama, Hikaru (1474) | Won 2-1 | +191471 |
| 5standard | 284 | Hiraga, Masahiro (1496) | Won 2-1 | +181489 |
| 6standard | 187 | Omori, Ken'ichirou (1461) | Lost 0-2 | -181471 |
| top | average opponent: 1506record: 3-3 | new rating: 1471 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 37 | Yamanaka, Shigeharu (1488) | Won 2-0 | +181518 |
| 2standard | 55 | Kaida, Hiroshi (1516) | Lost 1-2 | -181500 |
| 3standard | 244 | Mouri, Tomonori (1542) | Lost 1-2 | -171483 |
| 4standard | 322 | Uematsu, Kei (1444) | Won 2-1 | +171500 |
| 5standard | 237 | Sato, Yuuta (1506) | Lost 1-2 | -181482 |
| 6standard | 318 | Harada, Satoshi (1651) | Lost 0-2 | -151467 |
| top | average opponent: 1525record: 2-4 | new rating: 1467 | ||