Gruszczynski, Piotr
Current rating: 1501
Record: 3-3-1
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 66 | Mos, Michal (1413) | Won 2-1 | +161516 |
| 2block | 31 | Stanczyk, Daniel (1518) | Draw 1-1 | 01516 |
| 3block | 56 | Weber, Robert (1517) | Lost 1-2 | -181498 |
| 4block | 117 | Lauer, Lubos (1505) | Won 2-1 | +191517 |
| 5block | 82 | Bojarowski, Bartosz (1517) | Won 2-0 | +181535 |
| 6block | 43 | Tan, Iwan (1647) | Lost 1-2 | -161519 |
| 7block | 83 | Szewczyk, Adam (1523) | Lost 0-2 | -181501 |
| average opponent: 1520record: 3-3-1 | new rating: 1501 | |||