Ziemba, Lukasz
Current rating: 1493
Record: 6-7
| Grand Prix Krakow 2019 (M20 limited) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 451 | Tokarski, Pawel (1500) | Lost 1-2 | -181510 |
| 2sealed | 598 | Vendelboe, Pierre (1604) | Won 2-0 | +201530 |
| 3sealed | 352 | Riman, Vit (1512) | Lost 1-2 | -191511 |
| 4sealed | 396 | Jakubec, Stepan (1497) | Lost 1-2 | -181493 |
| average opponent: 1528record: 1-3 | new rating: 1493 | |||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 68 | Skrede Reigstad, Simen (1482) | Lost 0-2 | -181482 |
| 2standard | 301 | Ripa, Jan (1482) | Won 2-0 | +181500 |
| 3standard | 347 | Vardzik, Marek (1641) | Lost 0-2 | -161484 |
| 4standard | 413 | Sados, Marcin (1626) | Won 2-1 | +211505 |
| 5standard | 405 | Dobrowolski, Rafal (1465) | Won 2-0 | +171522 |
| 6standard | 296 | Moden, Anders (1640) | Lost 1-2 | -161506 |
| 7standard | 320 | Kytola, Aleksi (1502) | Won 2-0 | +181524 |
| 8standard | 214 | Habert, Alexandre (1773) | Lost 1-2 | -131511 |
| 9standard | 275 | Bertin, Oscar (1494) | Won 2-0 | +171528 |
| average opponent: 1567record: 5-4 | new rating: 1528 | |||