Ferreira, Marcelo
Current rating: 1572
Record: 8-4-1
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1559 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 469 | Alegre, Angel (1500) | Lost 1-2 | -201539 |
| 2sealed | 465 | MELERO, DAVID (1482) | Won 2-1 | +171556 |
| 3sealed | 413 | Verdu Mallens, Miguel (1551) | Lost 0-2 | -181538 |
| 4sealed | 429 | Ramos, Pedro Jonathan (1482) | Draw 1-1 | -11537 |
| 5sealed | 441 | Moreno Dominguez, Jorge (1482) | Won 2-0 | +171554 |
| 6sealed | 325 | Ferreira, Helio (1541) | Won 2-1 | +181572 |
| average opponent: 1506record: 3-2-1 | new rating: 1572 | |||
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 174 | Goncalves, Luis2 (1500) | Lost 0-2 | -181482 |
| 2sealed | 312 | Cunha, Joao (1482) | Won 2-0 | +181500 |
| 3sealed | 207 | Mesquita, Bruno (1500) | Won 2-0 | +181518 |
| 4sealed | 129 | Chaparro, Vasco (1518) | Won 0-0 | +181536 |
| 5sealed | 70 | Ronaldson, Ben (1799) | Lost 0-1 | -131523 |
| 6sealed | 130 | Costa, Ruben (1518) | Won 2-0 | +181541 |
| 7sealed | 74 | Freitas, ??? (1538) | Won 2-0 | +181559 |
| average opponent: 1551record: 5-2 | new rating: 1559 | |||