Kubus, Petr
Current rating: 1553
Record: 9-6
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Murphy, David [IRL] (1500) | Lost 0-2 | -191541 |
| 2sealed | 203 | Balik, Daniel (1481) | Lost 1-2 | -191522 |
| 3sealed | 296 | Milosevic, Aleksandar (1434) | Won 2-1 | +161538 |
| 4sealed | 288 | Holub, Michal (1482) | Won 2-1 | +171555 |
| 5sealed | 233 | Socha, Marek (1485) | Lost 0-2 | -191536 |
| 6sealed | 263 | Klimowicz, Maciej (1479) | Won 2-0 | +171553 |
| average opponent: 1477record: 3-3 | new rating: 1553 | |||
| Grand Prix Madrid 2008 (EVE limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 194 | Lopez, Adrian [ESP] (1500) | Won 2-0 | +181518 |
| 2sealed | 171 | Adebo Diaz, Juan Carlos (1726) | Lost 1-2 | -141504 |
| 3sealed | 175 | Ruiz Arroyo, Juan Carlos (1489) | Won 2-1 | +171521 |
| 4sealed | 110 | Quntero Bouza, Ismael (1518) | Lost 1-2 | -181503 |
| 5sealed | 207 | Perez Rodriguez, Jose (1503) | Won 2-0 | +181521 |
| 6sealed | 175 | Lopez, David P (1522) | Won 2-1 | +181539 |
| 7sealed | 88 | Mateo, Javier (1542) | Won 2-1 | +181557 |
| 8sealed | 46 | Ottati, Domingo (1709) | Lost 1-2 | -151542 |
| 9sealed | 89 | Quintana, Lain (1528) | Won 2-1 | +181560 |
| average opponent: 1560record: 6-3 | new rating: 1560 | |||