Ferreira, Helio
Current rating: 1465
Record: 14-16-1
| Grand Prix Lisbon 2005 (BOK limited) | starting rating: 1524 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 63 | Bonifacio da Costa, Vasco (1500) | Lost 0-1 | -191505 |
| 2sealed | 216 | Leitao, Andre (1482) | Won 2-0 | +181523 |
| 3sealed | 171 | Luis, Antonio [PRT] (1501) | Lost 0-2 | -191504 |
| 4sealed | 229 | Cardoso, Nuno (1433) | Lost 0-2 | -191485 |
| 5sealed | 225 | Silva, Antonio (1429) | Lost 0-2 | -191466 |
| 6sealed | 190 | Oliveira, Andre (1468) | Won 2-0 | +181484 |
| 7sealed | 152 | Dios, Manuel (1464) | Won 2-0 | +181502 |
| 8sealed | 126 | Bordon Gonzalez, Jose Ramon (1479) | Lost 1-2 | -191483 |
| 9sealed | 111 | De Oliveira, Luis (1464) | Lost 0-2 | -181465 |
| top | average opponent: 1469record: 3-6 | new rating: 1465 | ||
| Grand Prix Madrid 2004 (DST limited) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 419 | Fernandez, David (1500) | Won 2-0 | +171561 |
| 2sealed | 81 | Loeb, Davy (1656) | Lost 0-2 | -161545 |
| 3sealed | 351 | Sabater, Albert (1500) | Lost 1-2 | -191526 |
| 4sealed | 411 | Casa Nova, Alain (1419) | Draw 1-1 | -21524 |
| 5sealed | 447 | Perez, Carlos (1484) | Won 2-1 | +171541 |
| 6sealed | 325 | Ferreira, Marcelo (1554) | Lost 1-2 | -171524 |
| top | average opponent: 1519record: 2-3-1 | new rating: 1524 | ||
| Grand Prix Seville 2003 (LGN limited) | starting rating: 1466 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 82 | Segura, Cristian (1500) | Won 2-0 | +181484 |
| 2sealed | 163 | Goncalves, Gabriel (1570) | Won 2-0 | +201504 |
| 3sealed | 85 | Magnusson, Mikael (1560) | Won 2-1 | +191523 |
| 4sealed | 17 | Alcaraz, Aniol (1568) | Lost 1-2 | -171506 |
| 5sealed | 56 | Sansalvador, Marc (1483) | Won 2-0 | +171523 |
| 6sealed | 46 | Padial, Antonio (1504) | Won 2-0 | +181541 |
| 7sealed | 40 | Hernandez, Adolfo (1634) | Won 2-1 | +201561 |
| 8sealed | 15 | Coronado Tome, Daniel (1630) | Lost 1-2 | -171544 |
| top | average opponent: 1556record: 6-2 | new rating: 1544 | ||
| Grand Prix Lisbon 2002 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 142 | Sequeira, Vasco (1500) | Won 2-0 | +181518 |
| 2extended | 26 | van der Velden, Stan (1683) | Lost 0-2 | -151503 |
| 3extended | 179 | Gomes, Manuel (1482) | Won 2-0 | +181521 |
| 4extended | 108 | Ishii, Kuniyoshi (1536) | Lost 0-1 | -181503 |
| 5extended | 209 | Silva, Jose (1467) | Won 2-0 | +171520 |
| 6extended | 132 | Gonzalez, Raul [ESP] (1506) | Lost 1-2 | -181502 |
| 7extended | 176 | Ferreira, Marcelo 2672 (1500) | Lost 0-2 | -181484 |
| 8extended | 170 | Elias, Joao (1481) | Lost 0-2 | -181466 |
| top | average opponent: 1519record: 3-5 | new rating: 1466 | ||