Romanczukiewicz, Piotr
Current rating: 1604
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1456 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 227 | Raffaelli, Tommaso (1485) | Won 2-1 | +191475 |
| 2sealed | 81 | Vitasek, Tomas (1502) | Lost 0-2 | -181457 |
| 3sealed | 237 | Bosselmann, Tobias (1651) | Won 2-0 | +221479 |
| 4sealed | 208 | Tyssens, Geert (1562) | Won 2-1 | +191498 |
| 5sealed | 90 | Kucharik, Petr (1539) | Lost 0-2 | -171481 |
| 6sealed | 148 | Creiche, Selim (1644) | Won 2-1 | +211502 |
| 7sealed | 85 | Soukupova, Petra (1535) | Won 2-0 | +181520 |
| 8sealed | 45 | Kopecky, Krystof (1555) | Won 2-0 | +191539 |
| 9sealed | 28 | Kirchbacher, Florian (1712) | Won 2-0 | +211560 |
| 10draft | 79 | Hoffman, Vladimir (1594) | Won 2-0 | +191579 |
| 11draft | 82 | Bek, Tomas (1584) | Won 2-0 | +181597 |
| 12draft | 44 | Cech, Vit (1668) | Won 2-0 | +191616 |
| 13draft | 80 | Breit, Bernhard (1797) | Lost 1-2 | -151601 |
| 14draft | 45 | Nosowicz, Karol (1628) | Lost 1-2 | -171584 |
| 15draft | 46 | Tajak, Lukas (1687) | Won 2-1 | +201604 |
| top | average opponent: 1610record: 11-4 | new rating: 1604 | ||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 550 | Walack, Romain (1466) | Lost 1-2 | -181454 |
| 2standard | 622 | Dostal, Roman (1482) | Lost 0-2 | -181436 |
| 3standard | 676 | Nickel, Timo (1492) | Won 2-0 | +191455 |
| 4standard | 690 | Szewczek, Artur (1482) | Won 2-1 | +191474 |
| 5standard | 640 | Lehnert, Heiko (1483) | Lost 0-2 | -181456 |
| top | average opponent: 1481record: 2-3 | new rating: 1456 | ||
| Grand Prix Stockholm 2007 (FUT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 125 | Andersson, Magnus (1519) | Won 2-0 | +181518 |
| 3sealed | 6 | Pauli, Tormod (1456) | Won 2-1 | +171535 |
| 4sealed | 28 | Holmberg, Alexander (1561) | Lost 0-2 | -171518 |
| 5sealed | 82 | Kvaloe, Tarjei (1643) | Lost 1-2 | -161502 |
| 6sealed | 144 | Malmberg, Peter (1596) | Lost 0-2 | -161486 |
| 7sealed | 175 | Kakoschke, Nicholas W (1532) | Lost 0-0 | -181468 |
| 8sealed | 160 | Jacquet, Benjamin (1485) | Won 2-0 | +191487 |
| 9sealed | 124 | Yatsenko, Alex (1662) | Lost 0-2 | -151472 |
| top | average opponent: 1557record: 3-5 | new rating: 1472 | ||