Matejka, Karel
Current rating: 1541
Record: 5-3
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 642 | Cavanna, Emanuele (1500) | Won 2-0 | +181518 |
| 2sealed | 552 | Wache, Paul (1606) | Lost 1-2 | -161502 |
| 3sealed | 748 | Rolle, Christian (1398) | Won 2-1 | +161518 |
| 4sealed | 628 | Samul, Ondrej (1474) | Won 2-1 | +171535 |
| 5sealed | 619 | Sorensen, Jesper (1487) | Won 2-1 | +171552 |
| 6sealed | 603 | Lebeda, Tomas (1732) | Won 2-1 | +211573 |
| 7sealed | 551 | Kuusinen, Kalle (1597) | Lost 0-2 | -171556 |
| 8sealed | 602 | Papatsarouchas, Evangelos (1740) | Lost 0-2 | -151541 |
| average opponent: 1567record: 5-3 | new rating: 1541 | |||