Chojnacki, Szymon
Current rating: 1471
Record: 7-9-1
| Grand Prix Birmingham 2008 (Lorwyn block) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 176 | Van Hissenhoven, Thibaud (1503) | Won 2-1 | +191485 |
| 2block | 10 | Horne, Mark (1519) | Lost 0-2 | -181467 |
| 3block | 124 | McLellan, Scott (1522) | Won 2-1 | +191486 |
| 4block | 125 | Jarnfors, Esko (1518) | Lost 1-2 | -171469 |
| 5block | 168 | Crispin, Hector (1500) | Lost 0-2 | -181451 |
| 6block | 203 | Nelson, Craig (1481) | Won 0-0 | +191470 |
| 7block | 162 | Rickards, Daniel (1501) | Won 2-1 | +191489 |
| 8block | 108 | Calderbank, Mark (1519) | Lost 0-2 | -181471 |
| average opponent: 1508record: 4-4 | new rating: 1471 | |||
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 110 | Przekora, Lukas (1500) | Lost 0-2 | -181482 |
| 2standard | 156 | Pyzio, Radoslaw (1482) | Draw 1-1 | 01482 |
| 3standard | 152 | Skupien, Maciej (1482) | Won 2-0 | +181500 |
| 4standard | 142 | Wilbrand, Robert (1525) | Won 2-0 | +181518 |
| 5standard | 99 | Rikberg, Svante (1568) | Lost 0-2 | -171501 |
| 6standard | 137 | Volny, Adam (1502) | Lost 1-2 | -181483 |
| 7standard | 141 | Samal, Evgeny (1489) | Won 2-0 | +181501 |
| 8standard | 109 | Feher, Attila (1529) | Lost 1-2 | -171484 |
| 9standard | 106 | Muskovic, Tomislav (1482) | Lost 0-2 | -181466 |
| average opponent: 1507record: 3-5-1 | new rating: 1466 | |||