Czech, David
Current rating: 1594
Record: 19-16
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1562 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 209 | Cabezas Blanco, Aitor (1518) | Lost 1-2 | -191543 |
| 2sealed | 667 | Uschner, Friedemann (1591) | Won 2-0 | +191562 |
| 3sealed | 418 | Rantanen, Teemu (1535) | Won 2-0 | +171579 |
| 4sealed | 412 | Theunissen, Onno (1521) | Won 2-1 | +171596 |
| 5sealed | 177 | Gaasbeek Janzen, Maarten (1527) | Lost 1-2 | -191577 |
| 6sealed | 331 | Boer, Ivo (1527) | Won 2-0 | +171594 |
| 7sealed | 216 | Jansen, Ralf (1623) | Won 2-1 | +191613 |
| 8sealed | 204 | Rasmussen, Mikael (1585) | Lost 0-2 | -191594 |
| top | average opponent: 1553record: 5-3 | new rating: 1594 | ||
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1434 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 195 | Kracman, Jiri (1683) | Lost 0-2 | -141420 |
| 4sealed | 150 | Fabiani, Roberto (1593) | Won 2-1 | +211441 |
| 5sealed | 135 | Markovic, Peter (1521) | Lost 0-2 | -161425 |
| 6sealed | 193 | Grzywa, Mateusz (1523) | Won 2-0 | +201445 |
| 7sealed | 247 | Nadolny, Szymon (1604) | Won 2-1 | +201465 |
| 8sealed | 307 | Szyksznian, Dariusz (1615) | Won 2-1 | +211486 |
| 9sealed | 355 | Svach, Jan (1738) | Won 2-0 | +231509 |
| 10draft | 368 | Maurri, Filippo (1788) | Won 2-1 | +231532 |
| 11draft | 402 | Zimak, David (1566) | Won 2-0 | +181550 |
| 12draft | 378 | Sandri, Christian (1671) | Won 2-1 | +201570 |
| 13draft | 376 | Malecki, Aleksander (1705) | Won 2-0 | +211591 |
| 14draft | 371 | Vanek, Jiri (1959) | Lost 1-2 | -121579 |
| 15draft | 364 | Bochnak, Piotr (1602) | Lost 1-2 | -171562 |
| top | average opponent: 1659record: 9-4 | new rating: 1562 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1479 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 152 | Brozek, Jan (1786) | Lost 1-2 | -131466 |
| 3standard | 337 | Raptidis, Aristotelis (1501) | Won 2-0 | +191485 |
| 4standard | 323 | Love, James (1689) | Lost 1-2 | -151470 |
| 5standard | 395 | Pajak, Tomasz (1468) | Lost 0-2 | -181452 |
| 6standard | 424 | Jonsson, Robin (1423) | Lost 1-2 | -181434 |
| top | average opponent: 1573record: 1-4 | new rating: 1434 | ||
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 383 | Rucky, Jakub (1500) | Won 2-0 | +181518 |
| 2standard | 137 | van Donselaar, Philip (1495) | Lost 1-2 | -181500 |
| 3standard | 532 | Dedicik, Zdenek (1500) | Won 2-0 | +181518 |
| 4standard | 332 | Ornolfsson, Thorlakur Matthias (1521) | Lost 0-2 | -181500 |
| 5standard | 403 | Salvidio, Lucantonio (1704) | Lost 0-2 | -151485 |
| 6standard | 546 | Schulz, Michael (1306) | Lost 0-2 | -211464 |
| 7standard | 472 | Brun, Michael (1462) | Won 2-0 | +181482 |
| 8standard | 359 | Wieser, Lukas (1431) | Lost 0-2 | -191463 |
| 9standard | 319 | Ringoir, Lesly (1319) | Won 2-0 | +161479 |
| top | average opponent: 1471record: 4-5 | new rating: 1479 | ||