Sinivaara, Heikki
Current rating: 1516
Record: 3-2-1
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Rankka, Matti (1446) | Draw 1-1 | -11499 |
| 2sealed | 108 | Kavla, Anders (1500) | Won 2-1 | +181517 |
| 3sealed | 69 | Gilsing, Abel (1540) | Won 2-0 | +181535 |
| 4sealed | 59 | Romanov, Sergey (1537) | Lost 0-2 | -181517 |
| 5sealed | 101 | Hogdahl, Janni (1518) | Won 2-1 | +181535 |
| 6sealed | 67 | Schipkowski, Jan (1430) | Lost 1-2 | -191516 |
| average opponent: 1495record: 3-2-1 | new rating: 1516 | |||