Kowalczyk, Lukasz
Current rating: 1432
Record: 2-6
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 313 | Giacomelli, Franco (1503) | Lost 0-1 | -181482 |
| 2sealed | 574 | Campuzano Montoro, Carlos (1483) | Lost 1-2 | -181464 |
| 3sealed | 803 | Paciocco, Andrea (1599) | Lost 0-1 | -151449 |
| 4sealed | 857 | Escudero Mendoza, Enrique (1564) | Lost 1-2 | -161433 |
| 5sealed | 800 | Urbanczyk, Marek (1492) | Won 2-1 | +191452 |
| 6sealed | 689 | Capanda, Robert (1428) | Lost 1-2 | -191433 |
| 7sealed | 604 | Englert, Philipp (1430) | Lost 1-2 | -181415 |
| 8sealed | 525 | Jurca, Lucian (1327) | Won 2-0 | +171432 |
| average opponent: 1478record: 2-6 | new rating: 1432 | |||