Zniszczol, Jacek
Current rating: 1490
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1433 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 231 | Holzer, Florian (1500) | Won 2-0 | +191452 |
| 2sealed | 144 | Chermaci, Sorin (1521) | Won 2-1 | +191471 |
| 3sealed | 15 | Summersberger, Helmut (1769) | Won 2-0 | +231494 |
| 4sealed | 106 | Utz, Kai (1566) | Won 2-1 | +201514 |
| 5sealed | 30 | Maron, Alf (1520) | Lost 1-2 | -181496 |
| 6sealed | 80 | Birner, Armin (1832) | Lost 1-2 | -121484 |
| 7sealed | 147 | Cuneo, Vincent (1654) | Won 2-0 | +211505 |
| 8sealed | 57 | Pinkster, Wilco (1672) | Lost 1-2 | -151490 |
| top | average opponent: 1629record: 5-3 | new rating: 1490 | ||
| Grand Prix Munich 2003 (MRD limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 169 | Ong, Jan (1500) | Lost 1-2 | -171447 |
| 2sealed | 332 | Kleinow, Claus (1605) | Lost 0-2 | -151432 |
| 3sealed | 413 | Seibel, Felix (1464) | Won 2-0 | +181450 |
| 4sealed | 426 | Kook, Benjamin (1484) | Lost 1-2 | -171433 |
| top | average opponent: 1513record: 1-3 | new rating: 1433 | ||
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 125 | Martin, Kis (1500) | Lost 1-2 | -181482 |
| 2sealed | 185 | Leichtfried, Peter (1481) | Lost 0-2 | -181464 |
| 3sealed | 249 | Hrazm, Lukas (1465) | Lost 1-2 | -181446 |
| 4sealed | 279 | Henel, Krzysztof (1445) | Won 2-0 | +181464 |
| top | average opponent: 1473record: 1-3 | new rating: 1464 | ||