Sumowski, Aleksander
Current rating: 1451
Record: 1-4-3
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 35 | Stelmach, Wojciech (1500) | Won 2-0 | +181518 |
| 2block | 18 | Fiore, Stefano (1791) | Lost 0-2 | -131505 |
| 3block | 113 | Arabski, Tomasz (1500) | Draw 1-1 | 01505 |
| 4block | 120 | Nyvlt, Mirko (1545) | Lost 1-2 | -181487 |
| 5block | 148 | Orzel, Maciej (1480) | Lost 0-2 | -181469 |
| 6block | 159 | Jedrychowicz, Bartek (1464) | Draw 1-1 | 01469 |
| 7block | 155 | Milek, Arkadiusz (1464) | Lost 0-2 | -181451 |
| 8block | 148 | Sawicki, Tomasz (1428) | Draw 0-0 | 01451 |
| average opponent: 1521record: 1-4-3 | new rating: 1451 | |||