Dvorak, Jiri 2119
Current rating: 1581
Record: 10-6
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1558 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 464 | Banki, Andras (1530) | Lost 0-2 | -191539 |
| 2sealed | 539 | Stefanovic, Aleksandar (1625) | Won 2-1 | +201559 |
| 3sealed | 424 | Sienko, Piotr (1730) | Won 2-0 | +211580 |
| 4sealed | 212 | Papierz, Mateusz (1521) | Won 2-0 | +171597 |
| 5sealed | 74 | Janeczek, Jakub (1598) | Lost 0-2 | -181579 |
| 6sealed | 182 | Andrzejewski, Alan (1724) | Won 2-1 | +201599 |
| 7sealed | 297 | Andrew, James (1610) | Lost 1-2 | -181581 |
| average opponent: 1620record: 4-3 | new rating: 1581 | |||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 640 | Stecher, Daniel (1500) | Won 2-0 | +181518 |
| 2sealed | 563 | Hinrichs, Christoph (1550) | Lost 0-2 | -171501 |
| 3sealed | 782 | Stefanak, Filip (1498) | Won 2-1 | +181519 |
| 4sealed | 736 | Sephton, Nick J (1501) | Lost 0-2 | -191500 |
| 5sealed | 687 | Sauter, Franz (1592) | Lost 1-2 | -161484 |
| 6sealed | 761 | Fukala, Dalibor (1597) | Won 2-1 | +201504 |
| 7sealed | 709 | Birsan, Mihai Alexandr (1484) | Won 2-0 | +181522 |
| 8sealed | 627 | Liebich, Igor (1517) | Won 2-0 | +171539 |
| 9sealed | 604 | Gerhofer, Oliver (1541) | Won 2-0 | +191558 |
| average opponent: 1531record: 6-3 | new rating: 1558 | |||