Sudnik, Piotr
Current rating: 1451
Record: 1-4
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 952 | Matoska, Jan (1500) | Won 2-0 | +181518 |
| 2sealed | 965 | Kosa, Zoltan (1565) | Lost 1-2 | -171501 |
| 3sealed | 572 | Schneider, Jan (1548) | Lost 1-2 | -171484 |
| 4sealed | 977 | Lyons, Oisin (1646) | Lost 1-2 | -151469 |
| 5sealed | 1006 | Krpalek, Josef (1475) | Lost 0-2 | -181451 |
| average opponent: 1547record: 1-4 | new rating: 1451 | |||