Kozlowicz, Marcin
Current rating: 1526
Record: 10-9
| Grand Prix Prague 2003 (LGN limited) | starting rating: 1547 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 42 | Dubsky, Michael (1497) | Won 2-0 | +171564 |
| 2sealed | 48 | Novak, Daniel (1500) | Won 2-0 | +171581 |
| 3sealed | 114 | Jansen, Patrick (1482) | Lost 0-2 | -201561 |
| 4sealed | 136 | Harding, Oyvind (1661) | Lost 0-2 | -161545 |
| 5sealed | 264 | Kufa, Jan (1502) | Lost 1-2 | -191526 |
| average opponent: 1528record: 2-3 | new rating: 1526 | |||
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 147 | Savicius, Tadas (1500) | Won 2-1 | +181518 |
| 2block | 60 | Wrzesniewski, Kacper (1518) | Won 2-1 | +181536 |
| 3block | 2 | Nguyen, Dawid (1539) | Won 2-1 | +181554 |
| 4block | 7 | Denisov, Sergey (1623) | Won 2-0 | +191573 |
| 5block | 2 | Kolomeyko, Yuri (1646) | Won 2-1 | +201593 |
| 6block | 3 | Kettil, Mattias (1723) | Won 2-0 | +201613 |
| 7block | 4 | Oberbek, Przemyslaw (1539) | Lost 0-2 | -191594 |
| 8block | 8 | Markin, Yuri (1728) | Lost 1-2 | -161578 |
| 9block | 17 | Okin, Eugeny (1686) | Won 2-0 | +201598 |
| 10block | 16 | Linder, David (1683) | Lost 0-2 | -161582 |
| 11block | 20 | Jautakis, Andrius (1571) | Won 2-1 | +171599 |
| 12block | 12 | Savchuk, Rostyslav (1650) | Lost 0-2 | -171582 |
| 13block | 16 | Koberda, Maciej (1566) | Lost 0-2 | -181564 |
| 14block | 24 | Leander, Erik (1612) | Lost 0-2 | -171547 |
| average opponent: 1613record: 8-6 | new rating: 1547 | |||