Peljo, Pekka
Current rating: 1543
Record: 5-3
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Lindstrom, Martin (1500) | Lost 0-2 | -181482 |
| 2sealed | 162 | Helenius, Timo (1508) | Won 2-1 | +181500 |
| 3sealed | 127 | Soljanne, Jouni (1500) | Won 2-0 | +181518 |
| 4sealed | 122 | Aarela, Tommi (1518) | Won 2-1 | +181536 |
| 5sealed | 43 | Leiviska, Jouni (1555) | Won 2-1 | +191555 |
| 6sealed | 17 | Maatta, Asko (1569) | Lost 0-2 | -181537 |
| 7sealed | 76 | Zakuskin, Maksim (1540) | Won 2-0 | +181555 |
| 8sealed | 34 | Jorstedt, Mattias (1884) | Lost 0-1 | -121543 |
| average opponent: 1572record: 5-3 | new rating: 1543 | |||