Kummer, Tomas
Current rating: 1559
Record: 14-12
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 413 | Heining, Joakim (1554) | Lost 0-2 | -191545 |
| 2sealed | 1188 | Bohuslav, Robert (1338) | Lost 1-2 | -211524 |
| 3sealed | 1131 | Sieber, Michael (1464) | Won 2-0 | +171541 |
| 4sealed | 984 | Butler, Conall (1483) | Won 2-0 | +171558 |
| 5sealed | 676 | Lamser, Tomas (1502) | Won 2-0 | +171575 |
| 6sealed | 430 | Shinoda, Akito (1733) | Lost 0-2 | -161559 |
| top | average opponent: 1512record: 3-3 | new rating: 1559 | ||
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1539 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 90 | Moiseev, Dmitry (1799) | Won 2-0 | +221561 |
| 2sealed | 36 | Graenge, Martin (1517) | Won 2-0 | +171578 |
| 3sealed | 333 | Stok, Alex (1686) | Lost 1-2 | -161562 |
| 4sealed | 336 | Spinelli, Renato (1704) | Lost 0-2 | -151547 |
| 5sealed | 631 | Venancio, Ricardo (1467) | Won 2-0 | +161563 |
| 6sealed | 321 | Ayaz, Veysel Karani (1517) | Won 2-0 | +181581 |
| 7sealed | 280 | Berg, Magnus (1633) | Lost 0-2 | -171564 |
| top | average opponent: 1618record: 4-3 | new rating: 1564 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1496 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 518 | Vojtisek, Michal (1504) | Won 2-0 | +181514 |
| 2sealed | 603 | Matousek, Jakub (1518) | Won 2-1 | +181532 |
| 3sealed | 572 | Pietron, Krzysztof (1549) | Lost 1-2 | -171515 |
| 4sealed | 667 | Sulik, Pavel (1480) | Lost 0-2 | -191496 |
| 5sealed | 690 | Simunek, Martin (1508) | Won 2-0 | +181514 |
| 6sealed | 703 | Vardzik, Marek (1501) | Won 2-1 | +181532 |
| 7sealed | 592 | Lipovec, Jernej (1538) | Won 2-1 | +181550 |
| 8sealed | 603 | Lybaert, Marijn (1922) | Lost 1-2 | -111539 |
| top | average opponent: 1565record: 5-3 | new rating: 1539 | ||
| Grand Prix Rotterdam 2009 (CON limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 428 | Zatlkaj, Matej (1926) | Lost 1-2 | -111489 |
| 5sealed | 524 | Netrefa, Jiri (1578) | Lost 1-2 | -161473 |
| 6sealed | 475 | Dorle, Anthony (1611) | Won 2-0 | +201493 |
| 7sealed | 468 | Radloff, Tobias (1605) | Won 2-0 | +201513 |
| 8sealed | 478 | Feenstra, Rens (1550) | Lost 0-2 | -171496 |
| top | average opponent: 1654record: 2-3 | new rating: 1496 | ||