Peura, Heikki
Current rating: 1515
| Grand Prix Helsinki 2004 (COK limited) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 133 | Vainikainen, Tommi (1516) | Lost 1-2 | -191515 |
| 2sealed | 136 | Vesman, Veigo (1481) | Won 2-0 | +181533 |
| 3sealed | 134 | Hagert, Marcus (1500) | Lost 1-2 | -191514 |
| 4sealed | 177 | Karmanov, Dmitry (1632) | Lost 0-2 | -161498 |
| 5sealed | 177 | Lundin, Martin (1451) | Won 2-1 | +171515 |
| top | average opponent: 1516record: 2-3 | new rating: 1515 | ||
| Grand Prix Copenhagen 2002 (ONS rochester) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 37 | Mamsen, Magnus (1500) | Won 2-0 | +171570 |
| 2sealed | 41 | Jensen, Niels Sanders (1671) | Lost 0-2 | -161554 |
| 3sealed | 118 | Kirsten, Filip (1516) | Won 2-1 | +171571 |
| 4sealed | 117 | Enstrom, Dan (1567) | Lost 1-2 | -181553 |
| 5sealed | 176 | Lindgren, Viktor (1485) | Lost 0-2 | -191534 |
| top | average opponent: 1548record: 2-3 | new rating: 1534 | ||
| Grand Prix Helsinki 2000 (INV limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 7 | Lantta, Tommi (1500) | Won 2-0 | +181518 |
| 2sealed | 44 | Anttila, Bekkev (1518) | Won 2-1 | +181536 |
| 3sealed | 11 | Turovskiy, Boris (1535) | Won 2-1 | +181554 |
| 4sealed | 5 | Duarte, Joao (1482) | Lost 0-2 | -191535 |
| 5sealed | 68 | Wickstrand, Jaakko (1534) | Lost 0-2 | -181517 |
| 6sealed | 83 | Kataja, Jyri (1518) | Won 0-0 | +181535 |
| 7sealed | 40 | Farkas, David (1536) | Won 2-0 | +181553 |
| top | average opponent: 1518record: 5-2 | new rating: 1553 | ||