Costa, Arsenio
Current rating: 1500
Record: 2-2
| Grand Prix Porto 2000 (PCY limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 253 | Domingo, Gonzalo (1500) | Won 2-0 | +181518 |
| 2sealed | 121 | Chaparro, Vasco (1518) | Won 2-1 | +181536 |
| 3sealed | 17 | Lachmann, Daniel (1536) | Lost 1-2 | -181518 |
| 4sealed | 138 | Pereira, Nuno (1518) | Lost 0-0 | -181500 |
| average opponent: 1518record: 2-2 | new rating: 1500 | |||