Patek, Zdenek
Current rating: 1523
Record: 5-4
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 665 | Hochbegger, Stefan (1500) | Won 2-1 | +181518 |
| 2sealed | 523 | Dalliston, Shane (1496) | Lost 0-2 | -181500 |
| 3sealed | 712 | Steindl, Michael (1499) | Lost 1-2 | -181482 |
| 4sealed | 830 | Januska, Martin (1509) | Won 2-1 | +181500 |
| 5sealed | 749 | Lamr, Martin (1673) | Won 2-1 | +211521 |
| 6sealed | 696 | Jacko, Robert (1639) | Won 2-0 | +201541 |
| 7sealed | 641 | Brychta, Tomas (1525) | Lost 1-2 | -181523 |
| 8sealed | 654 | Ruzicka, Marek (1531) | Lost 0-2 | -181505 |
| 9sealed | 620 | Janata, Ondrej (1498) | Won 2-1 | +181523 |
| average opponent: 1541record: 5-4 | new rating: 1523 | |||