Hammar, Sami
Current rating: 1464
Record: 3-5
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 84 | Polvivaara, Lauri (1500) | Lost 1-2 | -181482 |
| 2sealed | 119 | Nordblom, Jere (1481) | Won 2-0 | +181500 |
| 3sealed | 151 | Puustinen, Eetu (1482) | Lost 1-2 | -181482 |
| 4sealed | 165 | Overman, Jasper (1468) | Lost 0-2 | -191463 |
| 5sealed | 181 | Kopenen, Janne (1468) | Won 2-0 | +191482 |
| 6sealed | 152 | Becker, Otto (1485) | Lost 0-2 | -181464 |
| 7sealed | 131 | Felkle, Artur (1466) | Won 2-0 | +181482 |
| 8sealed | 102 | Jokinen, Kosti (1481) | Lost 0-2 | -181464 |
| average opponent: 1479record: 3-5 | new rating: 1464 | |||