Pietkiewicz, Szymon
Current rating: 1533
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 170 | Loeb, Davy (1700) | Won 2-0 | +211522 |
| 2sealed | 108 | Wagner, Steve (1518) | Won 2-1 | +181540 |
| 3sealed | 49 | Dauzat, Emmanuel (1562) | Lost 0-2 | -171523 |
| 4sealed | 164 | Veispak, Part (1522) | Won 2-0 | +181541 |
| 5sealed | 169 | Wlodarczyk, Lukasz (1545) | Lost 1-2 | -181523 |
| 6sealed | 279 | Michalski, Adam (1519) | Lost 0-2 | -181505 |
| 7sealed | 296 | Jeschke, Benjamin (1746) | Won 0-0 | +221527 |
| 8sealed | 244 | Janeczek, Jakub (1643) | Won 2-0 | +201547 |
| 9sealed | 110 | Bonaventura, Ciro (1743) | Lost 1-2 | -141533 |
| top | average opponent: 1611record: 5-4 | new rating: 1533 | ||
| Grand Prix Prague 2011 (NPH limited) | starting rating: 1557 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 65 | Szalek, Marcin (1500) | Lost 1-2 | -191538 |
| 2sealed | 205 | Bockel, Michael (1481) | Won 2-0 | +171555 |
| 3sealed | 169 | Reder, Hrvoje (1515) | Lost 1-2 | -191536 |
| 4sealed | 246 | Kondrk, Marcel (1639) | Lost 1-2 | -161520 |
| 5sealed | 236 | Klumpp, Berthold (1644) | Won 2-0 | +201540 |
| 6sealed | 203 | Schmalfeld, Thomas (1524) | Lost 1-2 | -181522 |
| 7sealed | 165 | Fatka, David (1456) | Lost 1-2 | -191503 |
| 8sealed | 137 | Darovec, Jakub (1448) | Won 2-0 | +171520 |
| 9sealed | 107 | Kobierski, Piotr (1467) | Lost 0-2 | -191501 |
| top | average opponent: 1519record: 3-6 | new rating: 1501 | ||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 574 | Durham, Michael (1668) | Won 2-0 | +211521 |
| 3standard | 530 | Cloete, Werner (1563) | Lost 0-2 | -171504 |
| 4standard | 598 | Markos, Daniel (1432) | Draw 1-1 | -21502 |
| 5standard | 608 | Drzewiecki, Tomek P (1518) | Lost 0-2 | -171485 |
| 6standard | 637 | Obradovic, Vladimir (1448) | Won 2-1 | +171502 |
| 7standard | 598 | Selivonec, Sergej (1521) | Won 2-1 | +181520 |
| 8standard | 568 | Portolan, Toni (1523) | Won 2-1 | +181538 |
| 9standard | 549 | Sznigir, Filip (1566) | Won 2-0 | +191557 |
| top | average opponent: 1530record: 5-2-1 | new rating: 1557 | ||