Dvorak, Mike
Current rating: 1471
| Grand Prix Dallas 2007 (extended) | starting rating: 1467 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 188 | Dunlap, Cory L (1500) | Won 2-0 | +191486 |
| 2extended | 184 | Thompson, Keith (1585) | Won 1-0 | +201506 |
| 3extended | 51 | O'Mallan, Ian (1552) | Lost 0-0 | -181488 |
| 4extended | 150 | Garcia, Oscar [USA] (1500) | Lost 1-2 | -171471 |
| top | average opponent: 1534record: 2-2 | new rating: 1471 | ||
| Grand Prix Austin 2004 (COK limited) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 34 | Marchand, Richard (1529) | Won 2-0 | +191501 |
| 5sealed | 18 | Lyman, Robert (1572) | Lost 0-2 | -171484 |
| 6sealed | 17 | Bitter, Victor (1542) | Lost 1-2 | -171467 |
| top | average opponent: 1548record: 1-2 | new rating: 1467 | ||
| Grand Prix Kansas City 2003 (MRD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 32 | Swierczek, Justin (1500) | Lost 0-2 | -181482 |
| 2sealed | 193 | Fuller, Eric (1483) | Won 2-0 | +181500 |
| 3sealed | 143 | Klein, Justin (1500) | Lost 0-2 | -181482 |
| top | average opponent: 1494record: 1-2 | new rating: 1482 | ||