Costa, Edgar
Current rating: 1453
Record: 7-10
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1464 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 357 | Iglesias, Osvaldo (1500) | Lost 0-2 | -171447 |
| 2sealed | 485 | Crespo Molera, Enrique (1461) | Lost 1-2 | -181429 |
| 3sealed | 583 | Cardoso, Miguel (1395) | Lost 0-2 | -181411 |
| 4sealed | 501 | Gorniak, Mariusz (1554) | Lost 0-2 | -161395 |
| 5sealed | 526 | Segoviano, Carlos (1428) | Won 2-0 | +191414 |
| 6sealed | 441 | Delgado, Ernesto (1446) | Won 2-0 | +181432 |
| 7sealed | 319 | Escalera, Guillermo (1461) | Won 2-0 | +191451 |
| 8sealed | 246 | Figueiredo, Ruben (1541) | Lost 0-2 | -161435 |
| 9sealed | 196 | martin, alvaro (1465) | Won 2-0 | +181453 |
| average opponent: 1472record: 4-5 | new rating: 1453 | |||
| Grand Prix Lisbon 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 114 | del Campo, Rodrigo (1481) | Won 2-1 | +181518 |
| 2extended | 78 | Ganhao, Nuno (1518) | Won 2-0 | +181536 |
| 3extended | 29 | Gonzalez, Manuel (1536) | Lost 0-2 | -181518 |
| 4extended | 136 | Moreira, Andre (1523) | Lost 0-2 | -181500 |
| 5extended | 211 | Garcia, Andres (1500) | Lost 0-2 | -181482 |
| 6extended | 233 | Concado, Pedro (1482) | Lost 1-2 | -181464 |
| 7extended | 229 | Nascimento, Jose (1462) | Won 2-1 | +181482 |
| 8extended | 192 | Lopez-infantes, Raul (1513) | Lost 0-2 | -181464 |
| average opponent: 1502record: 3-5 | new rating: 1464 | |||