Machek, Jan
Current rating: 1505
Record: 3-3-1
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 787 | Kopp, Marcus (1500) | Won 1-0 | +181518 |
| 2sealed | 785 | Goddard, Sean (1880) | Lost 0-2 | -121506 |
| 3sealed | 908 | Von Neuhaus, Bodo (1504) | Lost 1-2 | -181488 |
| 4sealed | 1045 | Gallo, Andrea Gaetano (1469) | Draw 1-1 | 01488 |
| 5sealed | 930 | Michalski, Radoslaw (1488) | Won 2-1 | +181506 |
| 6sealed | 721 | Jirka, Tomas (1466) | Lost 0-2 | -191487 |
| 7sealed | 679 | Kuchkouski, Aliaksei (1484) | Won 2-1 | +181505 |
| average opponent: 1541record: 3-3-1 | new rating: 1505 | |||