Hamada, Yuusaku
Current rating: 1500
Record: 3-3-1
| Grand Prix Sendai 2004 (DST limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 160 | Ootsuka, Tomomi (1439) | Draw 1-1 | -11499 |
| 2sealed | 137 | Furukawa, Hiroyuki (1500) | Won 2-0 | +181517 |
| 3sealed | 90 | Hattori, Keitarou (1465) | Won 2-0 | +171534 |
| 4sealed | 56 | Ishikka, Takehiro (1567) | Lost 1-2 | -171517 |
| 5sealed | 104 | Nakazawa, Kazuhiro (1589) | Won 2-1 | +191536 |
| 6sealed | 68 | Fukaishi, Takahiro (1522) | Lost 1-2 | -181518 |
| 7sealed | 102 | Ichikawa, Kazuyuki (1552) | Lost 1-2 | -181500 |
| average opponent: 1519record: 3-3-1 | new rating: 1500 | |||