Ozawa, Masahiro
Current rating: 1475
| Grand Prix Niigata 2005 (Kamigawa block) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 64 | Shimizu, Hajime (1594) | Draw 1-1 | +31450 |
| 3block | 78 | Okada, Daisuke (1655) | Lost 0-2 | -151435 |
| 4block | 165 | Oodan, Takeshi (1483) | Won 2-0 | +191454 |
| 5block | 116 | Takebayashi, Tomo (1511) | Won 2-0 | +191473 |
| 6block | 72 | Sakurai, Yuu (1485) | Draw 1-1 | 01473 |
| 7block | 103 | Suzuki, Youhei (1562) | Draw 0-0 | +21475 |
| top | average opponent: 1548record: 2-1-3 | new rating: 1475 | ||
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1445 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Takada, Ryo (1370) | Won 2-0 | +161461 |
| 2sealed | 116 | Aizawa, Takeshi (1518) | Won 2-1 | +201481 |
| 3sealed | 98 | Shirakura, Tsuyoshi (1600) | Lost 1-2 | -161465 |
| 4sealed | 148 | Hashimoto, Yuu (Tokyo) (1488) | Lost 1-2 | -181447 |
| 5sealed | 164 | Higuchi, Katsuhiro (1434) | Lost 1-2 | -181429 |
| 6sealed | 192 | Ito, Hidetoshi (1380) | Lost 1-2 | -191410 |
| 7sealed | 162 | Cho, Masaki (1463) | Won 2-0 | +191429 |
| 8sealed | 33 | Nagashima, Yuji (1432) | Won 2-0 | +181447 |
| top | average opponent: 1461record: 4-4 | new rating: 1447 | ||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 228 | Shin, Gill-Won (1462) | Lost 1-2 | -191481 |
| 2block | 285 | Takagi, Kuniyuki (1482) | Lost 1-2 | -181463 |
| 3block | 335 | Kishida, Hirokazu (1437) | Lost 1-2 | -181445 |
| top | average opponent: 1460record: 0-3 | new rating: 1445 | ||