Houdek, Lukas
Current rating: 1431
Record: 1-5
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 674 | Sevcik, Miroslav (1592) | Lost 1-2 | -161484 |
| 2sealed | 737 | Mederly, Peter (1482) | Won 2-0 | +181502 |
| 3sealed | 738 | Berka, Krystof (1500) | Lost 0-2 | -181484 |
| 4sealed | 797 | Zubko, Ilja (1508) | Lost 0-2 | -181466 |
| 5sealed | 804 | Kunz, Ernst (1483) | Lost 0-2 | -181448 |
| 6sealed | 771 | Voigt, Lars (1463) | Lost 1-2 | -171431 |
| average opponent: 1505record: 1-5 | new rating: 1431 | |||