Carreira, Guilherme
Current rating: 1470
| Grand Prix Paris 2004 (COK limited) | starting rating: 1529 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 81 | Le Ligeour, Serge (1500) | Lost 0-2 | -191510 |
| 2sealed | 306 | Griffe, Julien (1483) | Draw 0-0 | 01510 |
| 3sealed | 295 | Benoit, Yoann (1470) | Won 2-0 | +171527 |
| 4sealed | 225 | Robin, Mickael (1498) | Lost 0-2 | -191508 |
| 5sealed | 250 | Bittner, Jacques (1562) | Lost 1-2 | -171491 |
| 6sealed | 237 | Magalhaes, Abilio (1403) | Lost 0-2 | -191472 |
| 7sealed | 188 | Markey, Lucie (1447) | Draw 1-1 | -11471 |
| 8sealed | 141 | Marcos, Joaquim (1450) | Won 2-0 | +181489 |
| 9sealed | 104 | Fabre, Dominique (1463) | Lost 0-2 | -191470 |
| top | average opponent: 1475record: 2-5-2 | new rating: 1470 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1537 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 221 | Nabais, Valentim (1446) | Lost 1-2 | -191518 |
| 2sealed | 225 | Sousa, Pedro (1482) | Won 2-0 | +171535 |
| 3sealed | 164 | Janssen, Kees (1488) | Lost 1-2 | -191516 |
| 4sealed | 326 | Sacedon Ayuso, Luis (1362) | Won 2-0 | +151531 |
| 5sealed | 209 | Cristobal, Pablo Fuento (1501) | Lost 0-2 | -181513 |
| 6sealed | 243 | Oliva Galvez, Manuel (1481) | Lost 0-2 | -191494 |
| 7sealed | 226 | Pinto, Carlos (1447) | Won 2-0 | +171511 |
| 8sealed | 180 | Lopez-cepero, Jose Manuel (1482) | Won 1-0 | +181529 |
| top | average opponent: 1461record: 4-4 | new rating: 1529 | ||
| Grand Prix Lisbon 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 166 | Vasconcelos, Antonio (1518) | Lost 0-2 | -181482 |
| 2extended | 257 | Dias, Renato (1482) | Won 2-0 | +181500 |
| 3extended | 210 | Perez, Sergio (1526) | Lost 0-2 | -171483 |
| 4extended | 280 | Nunes, Fabio (1482) | Won 2-1 | +181501 |
| 5extended | 173 | Faustino, Manuel (1579) | Lost 0-2 | -171484 |
| 6extended | 234 | Este, Ricardo (1482) | Won 2-0 | +181502 |
| 7extended | 144 | Carvalho, Ruben (1500) | Won 2-0 | +181520 |
| 8extended | 127 | Garcia, Enrique (1470) | Won 2-0 | +171537 |
| top | average opponent: 1505record: 5-3 | new rating: 1537 | ||