Rummukainen, Antti
Current rating: 1543
Record: 6-4
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 49 | Olbrich, Volker (1424) | Won 2-0 | +171517 |
| 5sealed | 12 | Laatikainen, Rauli (1568) | Won 2-0 | +191536 |
| 6sealed | 11 | Airaksinen, Mikko (1598) | Lost 1-2 | -171519 |
| 7sealed | 11 | Viljani, Petrila (1567) | Won 2-0 | +191538 |
| 8sealed | 19 | Ukskoski, Marko (1637) | ID | 01538 |
| 9rochester | 10 | Myllynen, Teemu (1531) | Won 2-0 | +171555 |
| 10rochester | 15 | Ukskoski, Marko (1654) | Lost 0-2 | -161539 |
| 11rochester | 3 | Doering, Alexander (1592) | Lost 1-2 | -171522 |
| 12rochester | 3 | Wiedenbein, Holger (1533) | Lost 1-2 | -181504 |
| 13rochester | 17 | Immonen, Mika (1585) | Won 2-1 | +201524 |
| 14rochester | 20 | Airaksinen, Mikko (1585) | Won 2-1 | +191543 |
| average opponent: 1570record: 6-4-1 | new rating: 1543 | |||