Polvivaara, Kimmo
Current rating: 1428
Record: 1-5
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 20 | Vayrynen, Marko (1464) | Lost 1-2 | -191481 |
| 2sealed | 144 | Aarela, Tommi (1482) | Lost 0-2 | -181463 |
| 3sealed | 168 | Maki-Tuuri, Jussi (1484) | Lost 0-2 | -171446 |
| 4sealed | 206 | Lahdekorpi, Juuso (1445) | Won 2-1 | +181464 |
| 5sealed | 173 | Lunkka, Kalle (1464) | Lost 1-2 | -181446 |
| 6sealed | 165 | Salonen, Visajaani (1444) | Lost 0-2 | -181428 |
| average opponent: 1464record: 1-5 | new rating: 1428 | |||