Massas, Joao
Current rating: 1482
Record: 3-4
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 212 | Pereira, David (1500) | Lost 0-1 | -181482 |
| 2sealed | 266 | Sousa, Vitor (1482) | Won 2-0 | +181500 |
| 3sealed | 107 | Calhau, Pedro (1500) | Lost 0-2 | -181482 |
| 4sealed | 228 | Farinha, Pedro (1482) | Lost 0-0 | -181464 |
| 5sealed | 227 | Tavares, Jorge Vi (1467) | Won 2-0 | +181482 |
| 6sealed | 176 | Braga, Paulo (1482) | Won 2-0 | +181500 |
| 7sealed | 115 | Cannata, Ricardo (1500) | Lost 1-2 | -181482 |
| average opponent: 1488record: 3-4 | new rating: 1482 | |||