Mederly, Peter
Current rating: 1431
Record: 2-6
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 572 | Brandt, Felix (1500) | Lost 1-2 | -181482 |
| 2sealed | 737 | Houdek, Lukas (1484) | Lost 0-2 | -181464 |
| 3sealed | 836 | Nepozitek, Bohumir (1568) | Lost 0-2 | -161448 |
| 4sealed | 859 | Akulsin, Martin (1445) | Lost 0-2 | -181430 |
| 6sealed | 787 | Otahal, Jiri (1445) | Lost 0-2 | -181412 |
| 7sealed | 751 | Kralik, Martin (1428) | Won 2-0 | +181430 |
| 8sealed | 697 | Manak, Jakub (1447) | Won 2-0 | +191449 |
| 9sealed | 646 | [anonymous] | Lost 1-2 | -181431 |
| average opponent: 1472record: 2-6 | new rating: 1431 | |||