Jastrza?bski, Jakub
Current rating: 1526
Record: 4-3
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 210 | Stibinger, Ales (1494) | Won 2-0 | +181518 |
| 2sealed | 2 | Scholz, Hannes (1701) | Won 2-1 | +211539 |
| 3sealed | 123 | Proks, Jakub (1568) | Won 2-1 | +191558 |
| 4sealed | 94 | Calvetto, Marcello (1773) | Lost 1-2 | -141544 |
| 5sealed | 99 | Ouzky, Karel (1506) | Won 2-1 | +171561 |
| 6sealed | 103 | Diez, Mikel (1657) | Lost 1-2 | -161545 |
| 7sealed | 163 | Berze, Richard (1524) | Lost 1-2 | -191526 |
| average opponent: 1603record: 4-3 | new rating: 1526 | |||