Miikkulainen, Ossi
Current rating: 1410
Record: 0-5-2
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Tagunov, Denis (1546) | Lost 0-2 | -171483 |
| 2sealed | 174 | Rinne, Topi (1482) | Lost 1-2 | -181465 |
| 3sealed | 176 | Pokki, Vaino (1448) | Lost 0-2 | -181447 |
| 4sealed | 203 | Rundelin, Jarkko (1446) | Lost 1-2 | -181429 |
| 5sealed | 194 | Salonen, Aleksi (1427) | Draw 1-1 | -11428 |
| 6sealed | 166 | Lehtonen, Juhani (1427) | Draw 1-1 | 01428 |
| 7sealed | 144 | Rajala, Joni (1392) | Lost 0-2 | -181410 |
| average opponent: 1453record: 0-5-2 | new rating: 1410 | |||