Hlavacek, Karel
Current rating: 1428
Record: 5-9-1
| Grand Prix Prague 2016 (legacy) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 195 | Hasselhorst, Marcel (1435) | Lost 0-2 | -191445 |
| 2legacy | 185 | Harrison, Anne (1411) | Lost 1-2 | -191426 |
| 3legacy | 712 | McKay, James (1464) | Lost 1-2 | -171409 |
| 4legacy | 700 | Jensen, Christian (1325) | Won 2-1 | +171426 |
| 5legacy | 637 | Larsson, Peter (1456) | Lost 0-2 | -181408 |
| 6legacy | 622 | Matuszewski, Mateusz (1488) | Won 2-0 | +201428 |
| average opponent: 1430record: 2-4 | new rating: 1428 | |||
| Grand Prix Prague 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 324 | Zhang, Qi (1500) | Lost 1-2 | -181482 |
| 2standard | 411 | Gartner, Peter (1482) | Won 2-0 | +181500 |
| 3standard | 490 | Volpi, Mattia (1509) | Draw 1-1 | 01500 |
| 4standard | 492 | Zornan, Martin (1463) | Lost 0-2 | -191481 |
| 5standard | 574 | Graba, Bartlomiej (1533) | Lost 0-2 | -171464 |
| 6standard | 566 | Pezda, Bartosz (1463) | Won 2-0 | +181482 |
| 7standard | 443 | Daschner, Simon (1431) | Lost 0-2 | -191463 |
| 8standard | 398 | Varga, Zsolt (1472) | Won 2-1 | +191482 |
| 9standard | 313 | Szabo, Daniel (1480) | Lost 0-2 | -181464 |
| average opponent: 1481record: 3-5-1 | new rating: 1464 | |||