Cohen, Herzel
Current rating: 1336
Record: 3-13
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1431 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 426 | Erenyi, Jakub (1644) | Lost 0-2 | -141417 |
| 2sealed | 1026 | Jaccard, Yann-Guillaume (1637) | Lost 0-2 | -141403 |
| 3sealed | 1171 | Stefanovic, Igor (1433) | Won 2-1 | +191422 |
| 4sealed | 1069 | Marin, Tudor (1479) | Lost 1-2 | -171405 |
| 5sealed | 976 | Kleijwegt, Stefan (1397) | Lost 0-2 | -181387 |
| 6sealed | 867 | Kubu, Vojtech (1454) | Lost 0-2 | -171370 |
| 7sealed | 745 | Vogel, Sylvain (1431) | Lost 0-2 | -171353 |
| 8sealed | 612 | Bahr, Malte (1427) | Lost 0-2 | -171336 |
| average opponent: 1488record: 1-7 | new rating: 1336 | |||
| Grand Prix Prague 2017 (AER limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 314 | Miele, Leonardo (1469) | Lost 1-2 | -191481 |
| 3sealed | 750 | Schubert, Mario (1403) | Lost 0-2 | -191462 |
| 4sealed | 685 | Mader, Markus (1412) | Lost 0-2 | -191443 |
| 5sealed | 800 | Golovash, Denis (1466) | Lost 1-2 | -171426 |
| 6sealed | 803 | Simon, Tobias (1432) | Won 2-1 | +181444 |
| 7sealed | 716 | Kawalec, Jiri (1527) | Won 2-0 | +191463 |
| 8sealed | 618 | Steudtner, Christian (1703) | Lost 1-2 | -141449 |
| 9sealed | 564 | Rosen, Sascha (1451) | Lost 0-2 | -181431 |
| average opponent: 1483record: 2-6 | new rating: 1431 | |||