Dedek, Michal
Current rating: 1455
Record: 8-12-2
| Grand Prix Vienna 2004 (COK limited) | starting rating: 1426 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 134 | Osojnik, Aljaz (1427) | Won 2-0 | +181444 |
| 2sealed | 16 | Bohringer, Steffen (1596) | Lost 0-2 | -161428 |
| 3sealed | 249 | Mrazek, Thomas (1499) | Won 2-1 | +201448 |
| 4sealed | 148 | Kaminek, Petr (1634) | Lost 1-2 | -151433 |
| 5sealed | 338 | Netrefa, Jiri (1533) | Won 2-0 | +201453 |
| 6sealed | 158 | Jimenez, Michael (1504) | Won 2-0 | +191472 |
| 7sealed | 108 | Zingerle, Gerhard (1564) | Lost 1-2 | -171455 |
| top | average opponent: 1537record: 4-3 | new rating: 1455 | ||
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1413 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Henke, Tobias (1565) | Won 2-1 | +201433 |
| 2sealed | 64 | Knaflic, Gregor (1518) | Lost 1-2 | -161417 |
| 3sealed | 308 | Zak, Milan (1499) | Won 2-1 | +191436 |
| 4sealed | 139 | Wohrle, Sven (1681) | Lost 1-2 | -131423 |
| 5sealed | 209 | Ivcec, Ivan (1499) | Won 2-0 | +191442 |
| 6sealed | 156 | Pruszkowski, Jan (1515) | Lost 0-2 | -161426 |
| top | average opponent: 1546record: 3-3 | new rating: 1426 | ||
| Grand Prix Vienna 2001 (ODY limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 70 | Goldbaum, Nils-Uwe (1505) | Lost 0-2 | -181448 |
| 2sealed | 219 | Luginbuhl, Thomas (1431) | Lost 1-2 | -181430 |
| 3sealed | 299 | Schultz, Andreas (1465) | Lost 0-2 | -171413 |
| top | average opponent: 1467record: 0-3 | new rating: 1413 | ||
| Grand Prix Prague 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 219 | Boura, Evzen (1500) | Lost 0-2 | -181482 |
| 2sealed | 281 | Dubsky, Michael (1481) | Won 2-1 | +181500 |
| 3sealed | 210 | Dietze, Daniel (1495) | Draw 1-1 | 01500 |
| 4sealed | 169 | Gasparac, Luka (1571) | Lost 0-2 | -171483 |
| 5sealed | 214 | Sury, Zdenek (1514) | Lost 1-2 | -171466 |
| 6sealed | 227 | Danek, Jiri (1461) | Draw 1-1 | 01466 |
| top | average opponent: 1504record: 1-3-2 | new rating: 1466 | ||