Kubu, Vojtech
Current rating: 1444
Record: 6-10
| Grand Prix Utrecht 2019 (ELD limited) | starting rating: 1511 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 556 | Ball, Alexander (1654) | Lost 1-2 | -161495 |
| 2sealed | 727 | Green, Thomas (1531) | Lost 0-2 | -171478 |
| 3sealed | 686 | Olejniczak, Maciej (1474) | Won 2-0 | +181496 |
| 4sealed | 598 | Skitek, Kornel (1421) | Won 2-1 | +161512 |
| 5sealed | 452 | Meulders, Bram (1764) | Lost 0-2 | -131499 |
| 6sealed | 464 | Baldoni, Giorgio (1486) | Lost 0-2 | -181481 |
| 7sealed | 413 | Oksenberg, Benjamin (1465) | Lost 0-2 | -191462 |
| 8sealed | 351 | Schipstra, Kees (1445) | Lost 0-2 | -181444 |
| average opponent: 1530record: 2-6 | new rating: 1444 | |||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 974 | Jerabek, Petr (1643) | Won 2-0 | +211521 |
| 2sealed | 541 | Bosselmann, Tobias (1543) | Lost 1-2 | -181503 |
| 3sealed | 733 | Chan, Yu Pan Jacky (1859) | Lost 1-2 | -121491 |
| 4sealed | 900 | Ebert, Felix (1489) | Lost 0-2 | -181473 |
| 5sealed | 1016 | Obergassner, Philipp (1428) | Lost 1-2 | -191454 |
| 6sealed | 867 | Cohen, Herzel (1387) | Won 2-0 | +171471 |
| 7sealed | 698 | Stamenkovic, Ivan (1464) | Won 2-1 | +181489 |
| 8sealed | 570 | Hacker, Christoph (1693) | Won 2-1 | +221511 |
| average opponent: 1563record: 4-4 | new rating: 1511 | |||