Rantala, Sonja
Current rating: 1498
Record: 14-15
| Grand Prix Brussels 2004 (DST standard) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 17 | Beyer, Sebastian (1511) | Lost 0-2 | -181480 |
| 2standard | 228 | Rizhikov, Pavel (1490) | Won 2-1 | +181498 |
| 3standard | 239 | Vozdecky, Lukas (1500) | Lost 0-2 | -181480 |
| 4standard | 286 | Judge, Alexander (1483) | Won 2-0 | +181498 |
| top | average opponent: 1496record: 2-2 | new rating: 1498 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 195 | Ros, Jordi (1595) | Won 2-1 | +191532 |
| 2sealed | 195 | Mifsud, Stephen (1501) | Lost 0-2 | -181514 |
| 3sealed | 286 | Kleinow, Claus (1620) | Lost 1-2 | -161498 |
| top | average opponent: 1572record: 1-2 | new rating: 1498 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1493 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 140 | Reuschel, Stefan (1500) | Lost 0-2 | -181475 |
| 2sealed | 322 | Recht, Michael (1533) | Won 2-1 | +191494 |
| 3sealed | 325 | Mazzurco, Carlo (1535) | Lost 0-2 | -171477 |
| 4sealed | 291 | Brehovsky, Josef (1482) | Lost 1-2 | -181459 |
| 5sealed | 356 | Roessler, Pavel (1465) | Won 2-0 | +181477 |
| 6sealed | 298 | Nipans, Aldis (1466) | Won 2-1 | +181495 |
| 7sealed | 181 | Bahnik, Ondrej (1501) | Won 2-0 | +181513 |
| 8sealed | 125 | Lassu, Miroslav (1526) | Lost 1-2 | -181495 |
| 9sealed | 134 | Schrottner, Gerald (1469) | Won 2-1 | +181513 |
| top | average opponent: 1498record: 5-4 | new rating: 1513 | ||
| Grand Prix Antwerp 2002 (TOR limited) | starting rating: 1486 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 144 | Steurs, Stephane (1500) | Won 2-0 | +181504 |
| 2sealed | 135 | Leviez, Benoit (1518) | Lost 0-2 | -181486 |
| 3sealed | 210 | Talak, Jack (1502) | Won 2-0 | +191505 |
| 4sealed | 119 | Tschirch, Marc (1806) | Lost 0-2 | -131492 |
| 5sealed | 136 | Knapen, Bas (1501) | Lost 1-2 | -181474 |
| 6sealed | 162 | Basselet, Olivier (1485) | Won 2-1 | +181492 |
| 7sealed | 115 | Mihranian, Christian (1499) | Won 2-1 | +181510 |
| 8sealed | 96 | Stefanovic, Marko (1557) | Lost 1-2 | -171493 |
| top | average opponent: 1546record: 4-4 | new rating: 1493 | ||
| Grand Prix Vienna 2001 (ODY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 207 | Dorninger, Alexander (1500) | Lost 0-2 | -181482 |
| 2sealed | 229 | Riebisch, Andreas (1431) | Won 2-1 | +171499 |
| 3sealed | 162 | TOTH, EMIL (1501) | Won 2-0 | +181517 |
| 4sealed | 125 | Bastos, Frederico (1747) | Lost 1-2 | -141503 |
| 5sealed | 202 | Jaki, Thomas (1531) | Lost 0-2 | -171486 |
| top | average opponent: 1542record: 2-3 | new rating: 1486 | ||