Pietkiewicz, Tomasz
Current rating: 1550
| Grand Prix Warsaw 2014 (JOU limited) | starting rating: 1571 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 297 | Gubanov, Vlad (1477) | Won 2-1 | +161587 |
| 2sealed | 177 | Chemyakin, Mikhail (1517) | Won 2-0 | +171604 |
| 3sealed | 220 | Tennivaara, Sabina (1502) | Lost 0-2 | -201584 |
| 4sealed | 234 | Kerem, Hannes (1660) | Lost 1-2 | -171567 |
| 5sealed | 307 | Bieniek, Lukasz (1634) | Lost 0-2 | -171550 |
| top | average opponent: 1558record: 2-3 | new rating: 1550 | ||
| Grand Prix Warsaw 2013 (M14 standard) | starting rating: 1513 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 130 | Stanny, Mateusz (1500) | Lost 0-2 | -181495 |
| 2standard | 228 | Buczkowski, Sylwester (1482) | Won 2-0 | +181513 |
| 3standard | 304 | Zagajewski, Mateusz (1462) | Won 2-1 | +171530 |
| 4standard | 320 | Neumann, Joaquim (1416) | Won 2-0 | +161546 |
| 5standard | 212 | Summersberger, Helmut (1816) | Lost 0-2 | -131533 |
| 6standard | 308 | Banasiak, Ewelina (1393) | Won 2-1 | +151548 |
| 7standard | 149 | de Togni, Marco (1607) | Lost 1-2 | -171531 |
| 8standard | 279 | Karlsson, Charlie (1520) | Won 2-1 | +181549 |
| 9standard | 202 | Mueller, Andre (1748) | Won 2-0 | +221571 |
| top | average opponent: 1549record: 6-3 | new rating: 1571 | ||
| Grand Prix Lille 2012 (DKA standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 584 | Irion, Julien (1405) | Won 2-0 | +161516 |
| 2standard | 666 | Sielski, Piotr (1376) | Lost 0-2 | -201496 |
| 3standard | 637 | Haller, Vincent (1442) | Won 2-0 | +171513 |
| 4standard | 724 | Salaun, Johann (1518) | Lost 1-2 | -181495 |
| 5standard | 746 | Mathon, Victor (1500) | Won 2-1 | +181513 |
| 6standard | 661 | Duval, Arnaud (1527) | Won 2-0 | +181531 |
| 7standard | 587 | Dorliat, Max (1606) | Lost 1-2 | -161515 |
| 8standard | 691 | Lete, Didier (1518) | Won 2-0 | +181533 |
| 9standard | 642 | Zabulica, Ionut (1466) | Lost 0-2 | -201513 |
| top | average opponent: 1484record: 5-4 | new rating: 1513 | ||