Aita, Shunji
Current rating: 1468
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 127 | Sakai, Yuuto (1542) | Lost 1-2 | -181481 |
| 2sealed | 193 | Kumagai, Shinichi (1622) | Won 2-1 | +211502 |
| 3sealed | 225 | Kamei, Kazuhiko (1562) | Lost 1-2 | -171485 |
| 4sealed | 267 | Kanazawa, Ayanobu (1549) | Lost 1-2 | -171468 |
| top | average opponent: 1568record: 1-3 | new rating: 1468 | ||
| Grand Prix Nagoya 2004 (5DN standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 256 | Tominaga, Mario (1500) | Lost 1-2 | -181482 |
| 2standard | 313 | Tawa, Atsushi (1499) | Won 2-0 | +191501 |
| 3standard | 281 | Matsushima, Kouji (1391) | Won 2-1 | +161517 |
| 4standard | 244 | Noguchi, Takashi (1517) | Lost 0-2 | -181499 |
| top | average opponent: 1477record: 2-2 | new rating: 1499 | ||
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 18 | Sakane, Kunio (1517) | Lost 1-2 | -181482 |
| 2sealed | 198 | Igeta, Hirofumi (1482) | Lost 0-2 | -181464 |
| 3sealed | 234 | Iwai, Takanori (1464) | Won 2-0 | +181482 |
| 4sealed | 190 | Takada, Ryo (1483) | Won 2-1 | +181500 |
| top | average opponent: 1486record: 2-2 | new rating: 1500 | ||