Heiramo, Petri
Current rating: 1497
Record: 6-6
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 136 | Kiukkonen, Markus (1438) | Lost 0-1 | -201498 |
| 2sealed | 161 | Norrgard, Dennis (1482) | Lost 1-2 | -181480 |
| 3sealed | 189 | Peltola, Jarne (1464) | Won 2-0 | +181498 |
| 4sealed | 162 | Kurttio, Pekko (1482) | Won 2-0 | +181516 |
| 5sealed | 125 | Hyrsky, Antti (1500) | Lost 0-2 | -191497 |
| average opponent: 1473record: 2-3 | new rating: 1497 | |||
| Grand Prix Helsinki 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 64 | Assinen, Ville (1500) | Lost 0-2 | -181482 |
| 2sealed | 105 | Pohjonen, Kalle (1482) | Won 2-0 | +181500 |
| 3sealed | 75 | Tuomi, Sami (1500) | Won 2-1 | +181518 |
| 4sealed | 87 | Hietala, Miska (1518) | Lost 1-2 | -181500 |
| 5sealed | 118 | Saari, Pertti (1503) | Won 2-0 | +181518 |
| 6sealed | 68 | Lehtinen, Jussi (1518) | Lost 0-0 | -181500 |
| 7sealed | 98 | Spolnikov, Pavel (1488) | Won 2-1 | +181518 |
| average opponent: 1501record: 4-3 | new rating: 1518 | |||