Ptacek, Tomas
Current rating: 1482
Record: 4-5
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 696 | Vlach, Michal (1500) | Lost 1-2 | -181482 |
| 2sealed | 762 | Larva, Lukas (1482) | Won 2-0 | +181500 |
| 3sealed | 729 | Wagner, Rob (1548) | Lost 0-2 | -171483 |
| 4sealed | 751 | Kelis, Martin (1406) | Lost 0-2 | -201463 |
| 5sealed | 799 | Gyenes, Ondrej (1463) | Won 2-1 | +181481 |
| 6sealed | 776 | Gasparini Casari, Giov (1484) | Won 2-0 | +191500 |
| 7sealed | 676 | Dio, Michal (1512) | Won 2-0 | +181518 |
| 8sealed | 635 | Preimesberger, Dominik (1519) | Lost 0-2 | -181500 |
| 9sealed | 627 | Podjukl, Martin (1499) | Lost 1-2 | -181482 |
| average opponent: 1490record: 4-5 | new rating: 1482 | |||