Kowalski, Przemyslaw
Current rating: 1428
Record: 17-25-1
| Grand Prix Warsaw 2018 (GRN limited) | starting rating: 1454 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 484 | Lenander, Richard (1618) | Lost 1-2 | -151439 |
| 2sealed | 515 | Save, Lex (1485) | Lost 0-2 | -171422 |
| 3sealed | 871 | Baudois, Guillaume (1590) | Won 2-0 | +211443 |
| 4sealed | 731 | Bonanno, Massimiliano (1603) | Lost 1-2 | -151428 |
| top | average opponent: 1574record: 1-3 | new rating: 1428 | ||
| Grand Prix Turin 2018 (M19 limited) | starting rating: 1385 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 87 | Fermani, Marco (1720) | Won 2-1 | +241409 |
| 2sealed | 153 | Sim, Chapman (1675) | Won 2-0 | +221431 |
| 3sealed | 38 | Montefiori, Giovanni (1701) | Lost 1-2 | -131418 |
| 4sealed | 230 | Achim, Cosmin (1451) | Lost 0-2 | -171401 |
| 5sealed | 280 | Fregosi, Lorenzo (1496) | Won 2-0 | +201421 |
| 6sealed | 318 | Luminati, Valerio (1965) | Won 2-0 | +271448 |
| 7sealed | 163 | Stihle, Laurent (1678) | Won 2-0 | +221470 |
| 8sealed | 138 | Mauri, Marco (1624) | Lost 1-2 | -161454 |
| top | average opponent: 1664record: 5-3 | new rating: 1454 | ||
| Grand Prix Prague 2016 (legacy) | starting rating: 1432 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 422 | Fischer, Marc Paul (1500) | Lost 1-2 | -171415 |
| 2legacy | 353 | Mock, Rico (1482) | Won 2-0 | +191434 |
| 3legacy | 378 | Kviz, Petr (1452) | Lost 1-2 | -171417 |
| 4legacy | 581 | Burridge, Amanda (1479) | Won 2-0 | +191436 |
| 5legacy | 529 | Derpmann, Werner (1400) | Won 2-1 | +171453 |
| 6legacy | 363 | Bochmann, Michael (1500) | Lost 1-2 | -171436 |
| 7legacy | 345 | Shavlovskyy, Dmytro (1482) | Lost 1-2 | -171419 |
| 8legacy | 452 | Iannello, Andrea (1424) | Lost 0-2 | -181401 |
| 9legacy | 441 | Rossi, Manuel Carlo (1509) | Lost 0-2 | -161385 |
| top | average opponent: 1470record: 3-6 | new rating: 1385 | ||
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1438 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 37 | Maciukiewicz, Marcin (1409) | Won 2-0 | +171455 |
| 2sealed | 20 | Faggin, Ari (1612) | Draw 1-1 | +31458 |
| 3sealed | 108 | Williams, LoneWolf (1485) | Won 2-1 | +191477 |
| 4sealed | 128 | Martin, Quentin (1881) | Lost 1-2 | -111466 |
| 5sealed | 227 | Chemyakin, Mikhail (1519) | Lost 0-2 | -171449 |
| 6sealed | 308 | Niegowski, Arkadiusz (1505) | Lost 0-2 | -171432 |
| top | average opponent: 1569record: 2-3-1 | new rating: 1432 | ||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1430 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 29 | Macalik, Roman (1500) | Lost 1-2 | -171413 |
| 2standard | 134 | Joemets, Marko (1482) | Won 2-1 | +191432 |
| 3standard | 93 | Prosek, Daniel (1500) | Lost 1-2 | -171415 |
| 4standard | 191 | Hermet, Ghislain (1448) | Lost 0-2 | -171398 |
| 5standard | 190 | Klys, Bartosz (1463) | Won 2-1 | +191417 |
| 6standard | 150 | Ojrzynski, Tomasz (1484) | Won 2-1 | +191436 |
| 7standard | 136 | Urosevic, Stefan (1469) | Won 2-1 | +191455 |
| 8standard | 94 | Vardzik, Tomas (1506) | Lost 1-2 | -171438 |
| top | average opponent: 1481record: 4-4 | new rating: 1438 | ||
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 96 | Maciejewski, Maciej (1500) | Lost 1-2 | -181482 |
| 2block | 124 | Staufcik, Vitezslav (1456) | Lost 1-2 | -181464 |
| 3block | 155 | Montonen, Veikko (1481) | Lost 1-2 | -181446 |
| 4block | 184 | Rozanski, Robert (1445) | Won 2-1 | +181464 |
| 5block | 168 | Mikucki, Dariusz (1467) | Lost 1-2 | -181446 |
| 6block | 167 | Stelmach, Wojciech (1445) | Won 2-0 | +181464 |
| 7block | 152 | Aleevsky, Alexander (1466) | Lost 1-2 | -181446 |
| 8block | 141 | Holzweiss, Ralf (1544) | Lost 0-2 | -161430 |
| top | average opponent: 1476record: 2-6 | new rating: 1430 | ||