Guimaraes, Jorge
Current rating: 1517
| Grand Prix Lisbon 2005 (BOK limited) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 183 | Cardoso, Daniel (1500) | Won 2-0 | +181535 |
| 2sealed | 105 | Soares, Joao (1538) | Lost 1-2 | -181517 |
| 3sealed | 157 | Dias, Bruno (1554) | Won 2-0 | +181535 |
| 4sealed | 142 | Coimbra, Andre (1518) | Lost 0-2 | -181517 |
| top | average opponent: 1527record: 2-2 | new rating: 1517 | ||
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1536 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 168 | Rodriguez Martinez, Jose M (1500) | Lost 0-2 | -191517 |
| top | record: 0-1 | new rating: 1517 | ||
| Grand Prix Lisbon 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 49 | Arezes, Alan (1500) | Won 2-0 | +181518 |
| 2extended | 11 | Carreira, Gustavo (1518) | Lost 0-2 | -181500 |
| 3extended | 115 | Reis, Ivo (1500) | Won 2-0 | +181518 |
| 4extended | 44 | Gabaldon Navarro, Carlos (1517) | Won 2-0 | +181536 |
| 5extended | 17 | Campos, Emilio (1521) | Draw 1-1 | 01536 |
| 6extended | 23 | Adebo Diaz, Juan Carlos (1604) | Draw 1-1 | +11537 |
| 7extended | 44 | Garcia, Gabriel (1474) | Won 2-0 | +171554 |
| 8extended | 24 | Candido, Joao (1548) | Lost 0-2 | -181536 |
| top | average opponent: 1523record: 4-2-2 | new rating: 1536 | ||