Ketzl, Tomas
Current rating: 1469
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1436 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 131 | Parenica, Vaclav (1467) | Won 2-1 | +181454 |
| 2standard | 17 | Corbett, Euan (1580) | Won 2-0 | +201474 |
| 3standard | 172 | Oliveros, Carlos (1734) | Won 2-1 | +231497 |
| 4standard | 42 | Schuhmann, Julian (1557) | Lost 0-2 | -171480 |
| 5standard | 161 | Aspernig, Dominik (1770) | Lost 1-2 | -131467 |
| 6standard | 419 | Toufar, Dalibor (1521) | Won 2-1 | +191486 |
| 7standard | 235 | Kopylovich, Maxim (1505) | Lost 1-2 | -171469 |
| top | average opponent: 1591record: 4-3 | new rating: 1469 | ||
| Grand Prix Prague 2014 (modern) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 287 | Dosimont, Amand (1741) | Lost 0-2 | -141504 |
| 4modern | 244 | Zrelov, Maxim (1612) | Lost 1-2 | -161488 |
| 5modern | 406 | Vejdelek, Roman (1571) | Won 2-0 | +201508 |
| 6modern | 304 | Zebrowski, Marcin (1547) | Lost 0-2 | -181490 |
| 7modern | 378 | Bosnjak, Bruno (1435) | Lost 0-2 | -191471 |
| 8modern | 410 | Cerny, Christopher (1450) | Lost 1-2 | -181453 |
| 9modern | 376 | Steinbeiss, Alexander (1496) | Lost 1-2 | -171436 |
| top | average opponent: 1550record: 1-6 | new rating: 1436 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 92 | Piskorz, Jan (1500) | Won 2-1 | +181518 |
| 2sealed | 90 | Zemp, Dominic (1600) | Won 2-1 | +191537 |
| 3sealed | 162 | Prosek, Dominik (1632) | Lost 1-2 | -161521 |
| 4sealed | 393 | Popek, Michal (1436) | Lost 1-2 | -191502 |
| 5sealed | 384 | Pekarek, Martin (1443) | Lost 0-2 | -191483 |
| 6sealed | 553 | Vranken, Sven (1375) | Won 2-0 | +161499 |
| 7sealed | 399 | Wieszok, Bartlomiej (1501) | Won 2-1 | +181517 |
| 8sealed | 254 | Sabel, Dion (1592) | Lost 1-2 | -171500 |
| 9sealed | 280 | Von Der Ohe, Timon (1502) | Won 2-0 | +181518 |
| top | average opponent: 1509record: 5-4 | new rating: 1518 | ||