Kostal, Miroslav
Current rating: 1413
| Grand Prix Paris 2009 (ZEN limited) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 798 | Testard, Emmanuel (1465) | Lost 0-2 | -181447 |
| 2sealed | 1005 | Van Bakel, Robbie (1536) | Lost 0-2 | -171430 |
| 3sealed | 1007 | Laffont, Gautier (1442) | Lost 0-2 | -171413 |
| top | average opponent: 1481record: 0-3 | new rating: 1413 | ||
| Grand Prix Hanover 2009 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 124 | Lippmann, Klaus D (1484) | Lost 0-2 | -191481 |
| 2extended | 174 | Mannheims, Bart (1467) | Won 2-0 | +181499 |
| 3extended | 161 | Ritzka, Simon (1694) | Lost 1-2 | -141485 |
| 4extended | 203 | Materne, Philipp (1461) | Lost 0-0 | -191466 |
| 5extended | 190 | Deloly, Mathieu (1387) | Won 2-1 | +171483 |
| 6extended | 153 | Sternbauer, Bernhard (1482) | Lost 1-2 | -181465 |
| top | average opponent: 1496record: 2-4 | new rating: 1465 | ||
| Grand Prix Vienna 2008 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 19 | Kohle, Tobias (1500) | Lost 0-2 | -181482 |
| 2extended | 195 | Baldessari, Giovanni (1446) | Draw 1-1 | -11481 |
| 3extended | 209 | Fleischer, Angela (1483) | Won 2-0 | +181499 |
| 4extended | 186 | Collinet, Patrick (1562) | Won 2-1 | +201519 |
| 5extended | 124 | Stephan, Juergen (1538) | Lost 0-2 | -181501 |
| 6extended | 170 | Max, Wiesinger (1479) | Won 2-1 | +171518 |
| 7extended | 124 | Hodovan, Miklos (1478) | Lost 0-2 | -181500 |
| top | average opponent: 1498record: 3-3-1 | new rating: 1500 | ||