Bortkun, Piotr
Current rating: 1480
Record: 2-3-1
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 82 | Szewczyk, Miroslaw (1500) | Draw 1-1 | 01500 |
| 2block | 100 | Demidov, Alex (1500) | Won 2-0 | +181518 |
| 3block | 62 | Kazbieruk, Wojciech (1422) | Lost 0-2 | -201498 |
| 4block | 118 | Arabski, Tomasz (1500) | Won 2-0 | +181516 |
| 5block | 80 | Roszczynialski, Tomek (1518) | Lost 1-2 | -181498 |
| 6block | 118 | Volkov, Alexander (1464) | Lost 0-2 | -181480 |
| average opponent: 1484record: 2-3-1 | new rating: 1480 | |||