Roca, Miguel
Current rating: 1482
Record: 4-5-1
| Grand Prix Lisbon 2005 (BOK limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 87 | Martinho, Estefano (1500) | Lost 0-2 | -191501 |
| 2sealed | 207 | Jacinto, Diogo (1482) | Draw 1-1 | 01501 |
| 3sealed | 212 | Devis, Larry (1432) | Lost 1-2 | -191482 |
| average opponent: 1472record: 0-2-1 | new rating: 1482 | |||
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 42 | Duarte, Joao (1500) | Won 2-0 | +181518 |
| 2sealed | 64 | Abreu, Rui (1518) | Won 2-0 | +181536 |
| 3sealed | 31 | Minton, Patrick (1643) | Lost 0-1 | -161520 |
| 4sealed | 103 | Martins, David (1518) | Lost 0-0 | -181502 |
| 5sealed | 169 | Amaro, Rui (1500) | Won 2-0 | +181520 |
| 6sealed | 89 | Cardoso, Goncalo (1519) | Won 2-0 | +181538 |
| 7sealed | 65 | Barracha, Joao (1523) | Lost 0-2 | -181520 |
| average opponent: 1532record: 4-3 | new rating: 1520 | |||