Valentiny, Jan
Current rating: 1465
Record: 1-3
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 646 | Konya, Andras (1500) | Lost 0-2 | -181482 |
| 2sealed | 1365 | Pinto, Tiago (1490) | Lost 1-2 | -181464 |
| 3sealed | 1184 | Buttner, Stefan (1467) | Won 2-1 | +181482 |
| 4sealed | 866 | Vanhapiha, Lauri (1541) | Lost 1-2 | -171465 |
| average opponent: 1500record: 1-3 | new rating: 1465 | |||