Michalak, Marcin
Current rating: 1584
Record: 10-6
| Grand Prix Krakow 2007 (LRW standard) | starting rating: 1551 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 70 | Kuzin, Vladimir (1446) | Lost 0-2 | -201531 |
| 3standard | 109 | Schwankl, Andre (1553) | Won 2-0 | +181549 |
| 4standard | 75 | Sliz, Lukasz (1515) | Won 2-0 | +181567 |
| 5standard | 47 | Njegomir, Manisa (1536) | Won 2-1 | +171584 |
| 6standard | 59 | Marciniszyn, Michal (1551) | Won 2-1 | +181602 |
| 7standard | 15 | Figarski, Tomasz (1614) | Lost 0-2 | -181584 |
| 8standard | 48 | Jaskolski, Hubert (1564) | Won 2-1 | +171601 |
| 9standard | 16 | van de Veen, Steffen (1653) | Lost 0-2 | -171584 |
| average opponent: 1554record: 5-3 | new rating: 1584 | |||
| Grand Prix Stockholm 2007 (FUT limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 94 | Fuentes, Samuel (1540) | Won 2-0 | +191519 |
| 3sealed | 57 | Star, Leon (1539) | Won 2-0 | +181537 |
| 4sealed | 104 | Edel, Willy (1856) | Won 2-1 | +241561 |
| 5sealed | 35 | Tomelitsch, Patrick (1762) | Lost 1-2 | -151546 |
| 6sealed | 73 | Saiyasely, Liking (1593) | Lost 0-2 | -171529 |
| 7sealed | 134 | Bystedt, Robert (1618) | Won 0-0 | +201549 |
| 8sealed | 53 | Rosada, Adrian (1653) | Won 2-0 | +201569 |
| 9sealed | 44 | Fjellander, Tobias (1577) | Lost 0-2 | -181551 |
| average opponent: 1642record: 5-3 | new rating: 1551 | |||