Grzegorek, Jakub
Current rating: 1526
Record: 3-3
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 132 | Portaro, Alessandro (1773) | Lost 1-2 | -131487 |
| 5standard | 118 | Zaleski, Malwin (1544) | Won 2-1 | +191506 |
| 6standard | 81 | Lucas, Gertjan (1516) | Won 2-0 | +181524 |
| 7standard | 48 | Pichon, Elie (1834) | Lost 1-2 | -121512 |
| 8standard | 166 | Nakamura, Shuhei (2006) | Won 2-0 | +261538 |
| 9standard | 171 | Cifka, Stanislav (1904) | Lost 0-2 | -121526 |
| average opponent: 1763record: 3-3 | new rating: 1526 | |||