Costa, Ruben
Current rating: 1482
Record: 3-4
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 47 | Sequeira, Sandra (1500) | Won 2-1 | +181518 |
| 2sealed | 81 | De Faria, Jose (1500) | Lost 0-2 | -181500 |
| 3sealed | 194 | Seabra, Carlos (1500) | Lost 0-2 | -181482 |
| 4sealed | 226 | Figueiredo, Nuno (1482) | Won 0-0 | +181500 |
| 5sealed | 170 | Brandao, Pedro (1499) | Won 2-1 | +181518 |
| 6sealed | 130 | Ferreira, Marcelo (1523) | Lost 0-2 | -181500 |
| 7sealed | 132 | Esteso, Joaquin (1500) | Lost 0-2 | -181482 |
| average opponent: 1501record: 3-4 | new rating: 1482 | |||