Dedek, Martin
Current rating: 1613
Record: 22-19
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 373 | Stadler, Jan (1626) | Lost 0-2 | -161546 |
| 4sealed | 299 | Devizyte, Egle (1524) | Won 2-0 | +171563 |
| 5sealed | 151 | Coates, Richard (1540) | Won 2-0 | +181581 |
| 6sealed | 182 | Noordzij, Wouter (1749) | Won 2-1 | +211602 |
| 7sealed | 120 | Tsarkov, Kirill (1956) | Won 2-1 | +241626 |
| 8sealed | 66 | Habert, Alexandre (1980) | Won 2-1 | +241650 |
| 9sealed | 41 | Schlegel, Michael (1587) | Won 2-0 | +171667 |
| 10draft | 381 | Horvath, Tamas (1631) | Lost 1-2 | -191648 |
| 11draft | 247 | Skov, Soeren (1640) | Won 2-1 | +181666 |
| 12draft | 340 | Konieczny, Dominik (1979) | Lost 0-2 | -121654 |
| 13draft | 210 | Patel, Kayure (1851) | Lost 0-2 | -151639 |
| 14draft | 252 | Levy, Raphael (1901) | Lost 0-2 | -131626 |
| 15draft | 245 | Mauch, Hannes (1923) | Lost 1-2 | -131613 |
| top | average opponent: 1761record: 7-6 | new rating: 1613 | ||
| Grand Prix Bologna 2017 (AKH limited) | starting rating: 1525 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 356 | Poli, Andrea (1501) | Won 2-0 | +171542 |
| 2sealed | 42 | Fajardo, Luis (1730) | Won 2-0 | +221564 |
| 3sealed | 155 | Perbet, Guillaume (1904) | Lost 1-2 | -121552 |
| 4sealed | 349 | Vieren, Pascal (1750) | Lost 0-2 | -151537 |
| 5sealed | 594 | Viniczai, Tibor (1699) | Won 2-0 | +211558 |
| 6sealed | 419 | D'Alterio, Emanuele (1543) | Won 2-0 | +181576 |
| 7sealed | 281 | Fafalios, Pavlos (1649) | Won 2-0 | +191595 |
| 8sealed | 125 | Angeli, Alessio (1798) | Lost 0-2 | -141581 |
| 9sealed | 346 | Gauthier, Guillaume (1547) | Lost 0-2 | -191562 |
| top | average opponent: 1680record: 5-4 | new rating: 1562 | ||
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 136 | Hitz, Michael (1672) | Lost 0-2 | -151486 |
| 4standard | 452 | Dombek, Tobias (1485) | Won 2-0 | +181504 |
| 5standard | 170 | Dijkstra, Koen (1416) | Won 2-1 | +171521 |
| 6standard | 104 | Evert, Michael (1579) | Won 2-1 | +191540 |
| 7standard | 81 | Janzer, Marcel (1632) | Won 2-0 | +191559 |
| 8standard | 28 | Maciejewski, Mateusz (1505) | Lost 1-2 | -191540 |
| 9standard | 90 | Vukovic, Boris (1683) | Lost 0-2 | -151525 |
| top | average opponent: 1567record: 4-3 | new rating: 1525 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 233 | Szkudlarek, Mateusz (1500) | Lost 1-2 | -191540 |
| 2modern | 373 | Moravec, Jonac (1482) | Lost 1-2 | -191521 |
| 3modern | 640 | Agrati, Manuel (1408) | Lost 1-2 | -201501 |
| top | average opponent: 1463record: 0-3 | new rating: 1501 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 43 | Varady, Balazs (1605) | Won 2-0 | +201520 |
| 2extended | 99 | Molnar, Marek (1576) | Lost 0-2 | -171503 |
| 3extended | 107 | Wulfert, Frederik (1553) | Lost 0-2 | -171486 |
| 4extended | 231 | Posavi, Ivica (1482) | Won 2-0 | +181504 |
| 5extended | 187 | Zavec, Luka (1499) | Won 2-0 | +181522 |
| 6extended | 99 | Fellner, Harald (1503) | Won 2-1 | +171539 |
| 7extended | 100 | Cobas Otero, Victor (1538) | Won 2-0 | +181557 |
| 8extended | 47 | Vorel, Jiri (1550) | Lost 0-2 | -181539 |
| 9extended | 77 | van den Oever, Roy (1653) | Won 2-0 | +201559 |
| top | average opponent: 1551record: 6-3 | new rating: 1559 | ||