Hamalainen, Olli 4217
Current rating: 1484
Record: 2-3
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 5 | Koskimaki, Antti (1607) | Lost 0-2 | -161484 |
| 2sealed | 117 | Ejarque, Nicolas (1482) | Won 2-0 | +181502 |
| 3sealed | 128 | Klooster, Aare (1482) | Lost 0-2 | -181484 |
| 4sealed | 187 | Hyrkko, Kari (1482) | Lost 1-2 | -181466 |
| 5sealed | 174 | Hietalahti, Matti (1467) | Won 2-0 | +181484 |
| average opponent: 1504record: 2-3 | new rating: 1484 | |||