Jirka, Tomas
Current rating: 1486
Record: 7-8-1
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 736 | Miletin, Tomas (1500) | Won 2-0 | +191482 |
| 2sealed | 534 | Vinther, Nicolai (1535) | Won 2-1 | +191501 |
| 3sealed | 464 | Paricio Perez, Adria (1546) | Lost 0-1 | -181483 |
| 4sealed | 754 | Roels, Markus (1437) | Lost 1-2 | -181465 |
| 5sealed | 722 | Gatu, Andrei (1552) | Draw 1-1 | +11466 |
| 6sealed | 721 | Machek, Jan (1506) | Won 2-0 | +191485 |
| 7sealed | 528 | Delbuono, Umberto (1504) | Lost 0-2 | -181467 |
| 8sealed | 510 | Lange, Philipp (1492) | Won 2-0 | +191486 |
| average opponent: 1509record: 4-3-1 | new rating: 1486 | |||
| Grand Prix Prague 2018 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 432 | Haake, Jerome (1460) | Won 2-0 | +171517 |
| 2modern | 94 | Gast, Andy (1451) | Lost 1-2 | -191498 |
| 3modern | 807 | Wagner, Tobias (1449) | Lost 1-2 | -191479 |
| 4modern | 692 | Bujan, Mihael (1487) | Lost 0-2 | -181461 |
| 5modern | 840 | Tetera, Filip (1579) | Lost 1-2 | -161445 |
| 6modern | 812 | Nagy, Gabor Lajos (1464) | Won 2-0 | +191464 |
| 7modern | 643 | Szyk, Andrzej (1451) | Won 2-1 | +181482 |
| 8modern | 573 | Stefanovic, Stefan (1447) | Lost 1-2 | -191463 |
| average opponent: 1473record: 3-5 | new rating: 1463 | |||