Tominaga, Yoichi
Current rating: 1486
Record: 5-6
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Nakamura, Hajime (1522) | Won 2-1 | +191485 |
| 2sealed | 41 | Matsuoka, Shuji (1481) | Won 2-0 | +181503 |
| 3sealed | 52 | Yamaguchi, Yoshinori (1508) | Lost 0-2 | -181485 |
| 4sealed | 84 | Saito, Takaaki (1517) | Won 2-0 | +181503 |
| 5sealed | 58 | Ishida, Syota (1502) | Won 2-0 | +181521 |
| 6sealed | 77 | Hiraga, Mikio (1522) | Lost 1-2 | -181503 |
| 7sealed | 78 | Umesawa, Takumi (1543) | Lost 1-2 | -171486 |
| average opponent: 1513record: 4-3 | new rating: 1486 | |||
| Grand Prix Yokohama 2003 (Onslaught block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2block | 3 | Shima, Junichirou (1500) | Lost 1-2 | -181482 |
| 3block | 301 | Sato, Kazumasa (1482) | Lost 1-2 | -181464 |
| 4block | 319 | Sakamoto, Sakito (1481) | Won 2-0 | +181482 |
| 5block | 206 | Nakamura, Yuusuke (1556) | Lost 1-2 | -161466 |
| average opponent: 1505record: 1-3 | new rating: 1466 | |||