Sierpinski, Piotr
Current rating: 1447
Record: 2-5-1
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 1 | Kratena, Ivo (1500) | Lost 0-2 | -181482 |
| 2block | 166 | Zabrodin, Nikolay (1534) | Won 2-0 | +191501 |
| 3block | 144 | Szulc, Piotr (1500) | Lost 0-1 | -181483 |
| 4block | 134 | Kucharski, Lukasz (1483) | Won 2-0 | +181501 |
| 5block | 104 | Borys, Grzegorz (1469) | Lost 0-2 | -191482 |
| 6block | 147 | Sobolewski, Tomasz (1483) | Draw 1-1 | 01482 |
| 7block | 130 | Plachy, Robert (1532) | Lost 0-2 | -171465 |
| 8block | 131 | Jezyna, Michael (1463) | Lost 0-1 | -181447 |
| average opponent: 1496record: 2-5-1 | new rating: 1447 | |||