Heinonen, Arto
Current rating: 1465
Record: 3-5
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 74 | Ejarque, Nicolas (1500) | Won 2-1 | +181518 |
| 2sealed | 35 | De La Fosse, Sebastien (1513) | Lost 0-2 | -181500 |
| 3sealed | 135 | Alaruikka, Rauli (1500) | Lost 0-2 | -181482 |
| 4sealed | 192 | Helenius, Timo (1507) | Won 2-0 | +181500 |
| 5sealed | 145 | Leskinen, Sampsa (1503) | Lost 0-2 | -181482 |
| 6sealed | 141 | Bastrykin, Semen (1483) | Won 2-0 | +181500 |
| 7sealed | 101 | Vettenranta, Leif (1406) | Lost 1-2 | -191481 |
| 8sealed | 111 | Karmanov, Dmitry (1624) | Lost 1-2 | -161465 |
| average opponent: 1505record: 3-5 | new rating: 1465 | |||