Guerreiro, David Lanca
Current rating: 1428
Record: 2-6-1
| Grand Prix Lisbon 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 45 | Pintassilgo, Rui (1500) | Draw 1-1 | 01500 |
| 2sealed | 152 | Bayam, Joao (1499) | Won 1-0 | +181518 |
| 3sealed | 78 | Freitas, Tiago (1534) | Lost 0-2 | -181500 |
| 4sealed | 153 | Mourato, Miguel (1518) | Lost 0-2 | -171483 |
| 5sealed | 203 | Sousa, Valdemar (1481) | Won 2-0 | +181501 |
| 6sealed | 140 | Palaio, Luis (1498) | Lost 0-2 | -181483 |
| 7sealed | 148 | Rodrigues, Joaquim (1482) | Lost 0-2 | -181465 |
| 8sealed | 135 | Sarmento, Filipe (1463) | Lost 0-1 | -191446 |
| 9sealed | 117 | Ferreira, Licinio (1447) | Lost 0-2 | -181428 |
| average opponent: 1491record: 2-6-1 | new rating: 1428 | |||