Yoshinaga, Tsuyoshi
Current rating: 1524
Record: 4-3-1
| Grand Prix Yokohama 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 76 | Endo, Kentaro (1500) | Won 2-1 | +181518 |
| 2sealed | 4 | Shiwaku, Tsuyoshi (1590) | Lost 0-2 | -171501 |
| 3sealed | 152 | Maeba, Hideaki (1736) | Draw 1-1 | +51506 |
| 4sealed | 210 | Ogiyama, Shuuji (1487) | Won 2-1 | +171523 |
| 5sealed | 142 | Itou, Kouei (1521) | Won 2-0 | +181541 |
| 6sealed | 94 | Ishida, Syota (1484) | Won 2-0 | +171558 |
| 7sealed | 53 | Hayashi, Hiroki (1715) | Lost 1-2 | -151543 |
| 8sealed | 11 | Endo, Tadashi (1465) | Lost 1-2 | -191524 |
| average opponent: 1562record: 4-3-1 | new rating: 1524 | |||