Kazimierczak, Piotr
Current rating: 1575
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1636 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 13 | Al-Rubei, Julien Phillip Christian (1602) | Lost 0-2 | -191617 |
| 4sealed | 498 | Baldessari, Giovanni (1363) | Lost 1-2 | -221595 |
| 5sealed | 434 | Wiedmann, Dennis (1520) | Lost 0-2 | -201575 |
| top | average opponent: 1495record: 0-3 | new rating: 1575 | ||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1507 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 93 | Bingen, Sturla (1732) | Lost 0-2 | -141493 |
| 3standard | 336 | Gade, Esben (1501) | Won 2-0 | +181511 |
| 4standard | 264 | Korytkowski, Andrzej (1516) | Won 2-1 | +181529 |
| 5standard | 209 | Pryt, Michal (1536) | Won 2-1 | +181547 |
| 6standard | 77 | Tabaka, Korneliusz (1611) | Won 2-0 | +191566 |
| 7standard | 68 | Wiggett, Gregory (1612) | Won 2-1 | +191585 |
| 8standard | 16 | Kytola, Joonas (1541) | Won 2-1 | +171602 |
| 9standard | 32 | Tapia Becerra, Felipe (2063) | Lost 1-2 | -101592 |
| 10standard | 61 | Andersson, Eddie (1580) | Lost 1-2 | -181574 |
| 11standard | 59 | Mueller, Szymon (1574) | Won 2-0 | +181592 |
| 12standard | 34 | Itani, Hiroshi (1640) | Won 2-0 | +191611 |
| 13standard | 41 | Broinger, Francis (1609) | Lost 1-2 | -181593 |
| 14standard | 43 | Parker, Richard (1967) | Won 2-0 | +241617 |
| 15standard | 38 | Neniskis, Algirdas (1644) | Won 2-0 | +191636 |
| top | average opponent: 1652record: 10-4 | new rating: 1636 | ||
| Grand Prix Milan 2011 (ISD limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 554 | Caselli, Stefano (1500) | Won 2-0 | +181518 |
| 2sealed | 613 | Hollos, Peter (1519) | Won 2-1 | +181536 |
| 3sealed | 611 | Breit, Bernhard (1783) | Won 2-1 | +221558 |
| 4sealed | 607 | Santinelli, Enrico (1534) | Lost 0-2 | -181540 |
| 5sealed | 672 | Campanino, Fabrizio (1641) | Lost 0-2 | -161524 |
| 6sealed | 747 | Guzzi, Gianluca (1518) | Won 2-1 | +181542 |
| 7sealed | 672 | Basoni, Federico (1525) | Lost 1-2 | -191523 |
| 8sealed | 638 | Strubelj, Gregor (1588) | Lost 0-2 | -161507 |
| top | average opponent: 1576record: 4-4 | new rating: 1507 | ||