Zidek, Jan
Current rating: 1483
| Grand Prix Copenhagen 2017 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 391 | Lynge, Mads (1500) | Lost 1-2 | -181481 |
| 2modern | 566 | Leahy, George (1612) | Lost 0-2 | -161465 |
| 3modern | 877 | Sorensen, Jeppe8133 (1468) | Lost 0-2 | -181447 |
| 4modern | 862 | Kaas-Larsen, Dennis (1447) | Won 2-0 | +181465 |
| 5modern | 763 | Kaplan, Freddie (1465) | Lost 0-2 | -181447 |
| 6modern | 790 | Maslevskyi, Stanislav (1485) | Won 2-0 | +191466 |
| 7modern | 687 | Capizzi, Guillaume (1419) | Won 2-0 | +171483 |
| 8modern | 560 | Hansen, Theis (1471) | Won 2-0 | +181501 |
| 9modern | 502 | Elmose, Jens (1530) | Lost 0-2 | -181483 |
| top | average opponent: 1488record: 4-5 | new rating: 1483 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1561 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 6 | Stuchly, Petr (1492) | Lost 1-2 | -191542 |
| 2modern | 333 | Karlsson, Rasmus (1554) | Lost 0-2 | -181524 |
| 3modern | 668 | Guth, Christian (1464) | Won 2-1 | +171541 |
| 4modern | 500 | Kunic, Peter (1560) | Won 2-1 | +181559 |
| 5modern | 207 | Garner, George (1467) | Lost 1-2 | -191540 |
| 6modern | 503 | Belasta, Matej (1491) | Lost 0-2 | -191521 |
| 7modern | 509 | Sedivy, Josef (1498) | Won 2-0 | +171538 |
| 8modern | 407 | Bohm, Philip (1387) | Lost 0-2 | -201518 |
| 9modern | 386 | Landvatter, Matthias (1474) | Lost 0-2 | -191499 |
| top | average opponent: 1487record: 3-6 | new rating: 1499 | ||
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 247 | Strasky, Ondrej (1666) | Won 2-0 | +211521 |
| 2standard | 160 | Papatsarouchas, Evangelos (1933) | Won 2-1 | +251546 |
| 3standard | 667 | Wohnhart, Robert (1502) | Lost 1-2 | -191527 |
| 4standard | 361 | Wagner, Silvio (1444) | Lost 1-2 | -191508 |
| 5standard | 447 | Rohrer, Niki (1464) | Won 2-0 | +171525 |
| 6standard | 404 | Pansanel, Pierre (1477) | Won 2-1 | +171542 |
| 7standard | 175 | Poroszkai, Laszlo (1613) | Lost 0-2 | -171525 |
| 8standard | 283 | Degioanni, Christophe (1515) | Won 2-0 | +181543 |
| 9standard | 260 | Ullmann, Christian (1543) | Won 2-0 | +181561 |
| top | average opponent: 1573record: 6-3 | new rating: 1561 | ||