Kowalczyk, Adam
Current rating: 1377
Record: 1-8-1
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1463 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 167 | Olejarski, Jakub (1500) | Won 2-1 | +191482 |
| 2sealed | 17 | Sienko, Dawid (1675) | Lost 1-2 | -141468 |
| 3sealed | 668 | Bordac, Lukas (1369) | Lost 0-2 | -201448 |
| 4sealed | 645 | Hatsula, Severyn (1483) | Lost 0-2 | -181430 |
| 5sealed | 751 | Grabnar, Tomaz (1515) | Lost 0-2 | -161414 |
| 6sealed | 684 | Lehdonvirta, Vili (1466) | Draw 1-1 | +11415 |
| 7sealed | 600 | Fuchs, Christian (1295) | Lost 0-2 | -201395 |
| 8sealed | 522 | Mioduszewski, Piotr (1431) | Lost 0-2 | -181377 |
| average opponent: 1467record: 1-6-1 | new rating: 1377 | |||
| Grand Prix Boston 2009 (M10 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | Chapman, Ryan (1506) | Lost 0-2 | -181482 |
| 2sealed | 310 | Morin, Phillip (1447) | Lost 0-2 | -191463 |
| average opponent: 1476record: 0-2 | new rating: 1463 | |||