Zwak, Jakub
Current rating: 1485
Record: 4-5
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 186 | Hallwirth, Stephan (1500) | Won 2-0 | +181518 |
| 2sealed | 178 | Prondzynski, Mateusz (1520) | Lost 1-2 | -181500 |
| 3sealed | 165 | Monbailly, Olivier (1571) | Lost 0-2 | -171483 |
| 4sealed | 392 | Kozak, David (1482) | Won 2-1 | +181501 |
| 5sealed | 283 | Schafer, Frank (1497) | Won 2-0 | +181519 |
| 6sealed | 154 | Bero, Peter (1613) | Lost 1-2 | -161503 |
| 7sealed | 205 | Glinsky, Karol (1501) | Won 2-1 | +181521 |
| 8sealed | 122 | Schmidt, Steffen (1548) | Lost 0-2 | -181503 |
| 9sealed | 133 | Holzelius, Stefan (1500) | Lost 1-2 | -181485 |
| average opponent: 1526record: 4-5 | new rating: 1485 | |||