Kosecki, Piotr
Current rating: 1455
Record: 5-8
| Grand Prix Madrid 2010 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4legacy | 67 | de Gottrau, Ludovic (1556) | Lost 1-2 | -171483 |
| 5legacy | 112 | Henche, Alejandro (1536) | Won 2-1 | +191502 |
| 6legacy | 138 | van der Vaart, Martijn (1640) | Won 2-1 | +201522 |
| 7legacy | 94 | Planting, Abel (1554) | Lost 1-2 | -171505 |
| 8legacy | 172 | Val, Jonatan (1556) | Won 2-0 | +191524 |
| 9legacy | 126 | Liessi, Thibault (1498) | Won 2-1 | +181542 |
| 10legacy | 77 | Leloup, Gregory (1617) | Won 2-0 | +191561 |
| 11legacy | 46 | Bouvier, Patrick (1640) | Lost 0-2 | -171544 |
| 12legacy | 93 | Escamilla Manas, Antonio (1520) | Lost 0-1 | -181526 |
| 13legacy | 94 | Guillien, Jean-michel (1529) | Lost 1-2 | -181508 |
| 14legacy | 105 | Brown, Alberto (1552) | Lost 1-2 | -171491 |
| 15legacy | 98 | Mathiasson, Mikael (1453) | Lost 0-2 | -191472 |
| 17legacy | 80 | Ravira, Sergio (1542) | Lost 1-2 | -171455 |
| average opponent: 1553record: 5-8 | new rating: 1455 | |||