Dziduch, Greg
Current rating: 1486
Record: 6-7-1
| Grand Prix Columbus 2007 (legacy) | starting rating: 1465 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 211 | Lusk, Bradley (1500) | Lost 1-2 | -171448 |
| 2legacy | 325 | Schachinger, Darren (1482) | Won 2-1 | +191467 |
| 3legacy | 234 | Taylor, John M (1500) | Won 2-0 | +181485 |
| 4legacy | 154 | Robek, Bryan (1435) | Lost 0-2 | -191466 |
| 5legacy | 210 | Weeks, Robert (1500) | Won 2-1 | +191485 |
| 6legacy | 192 | Lennon, Christopher (1488) | Lost 0-2 | -181467 |
| 7legacy | 230 | Holloway, Shawn (1500) | Won 2-1 | +191486 |
| 8legacy | 175 | Parker, Jon (1500) | Lost 0-2 | -181468 |
| 9legacy | 170 | Taylor, J. Bryce (1490) | Won 2-0 | +181486 |
| average opponent: 1488record: 5-4 | new rating: 1486 | |||
| Grand Prix Philadelphia 2005 (legacy) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2legacy | 35 | Eves, Gregory (1518) | Won 2-1 | +181518 |
| 3legacy | 44 | Olszewki, Peter (1517) | Draw 1-1 | 01518 |
| 4legacy | 68 | Phan, Lam (1537) | Lost 1-2 | -171501 |
| 5legacy | 113 | Rodman, Brandon (1520) | Lost 0-2 | -181483 |
| 6legacy | 146 | Schlegel, Nathan (1499) | Lost 1-2 | -181465 |
| average opponent: 1518record: 1-3-1 | new rating: 1465 | |||