Duarte, Helder
Current rating: 1447
Record: 5-8-1
| Grand Prix Madrid 2016 (KLD standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 125 | De Uriarte Lopez, Jaime (1500) | Lost 1-2 | -181482 |
| 2standard | 388 | Rodrigues, Luis (1670) | Lost 0-2 | -151467 |
| 3standard | 649 | Diaz Navarro, Jesus (1440) | Won 2-1 | +181485 |
| 4standard | 551 | Sanchez Espinosa, Francisco (1451) | Lost 1-2 | -191466 |
| 5standard | 678 | Zapata, Ricardo (1463) | Lost 1-2 | -181448 |
| 6standard | 644 | Benito Nieto, Jaime (1448) | Won 2-0 | +181466 |
| 7standard | 590 | Kecke, Paul (1415) | Draw 1-1 | -11465 |
| 8standard | 510 | Martinez Fernandez, Alejandro Emilio (1466) | Lost 0-2 | -181447 |
| average opponent: 1482record: 2-5-1 | new rating: 1447 | |||
| Grand Prix Lisbon 2005 (BOK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 77 | Andrade, Rogerio (1500) | Won 2-1 | +181518 |
| 2sealed | 13 | Serrano Rodriguez, Rafael (1518) | Lost 1-2 | -181500 |
| 3sealed | 206 | Reis, Pedro M (1500) | Lost 0-2 | -181482 |
| 4sealed | 188 | Camara, Aristides (1526) | Won 2-1 | +191501 |
| 5sealed | 130 | Cardoso, Nuno (1452) | Won 2-0 | +171518 |
| 6sealed | 76 | Guerreiro, Hugo (1518) | Lost 0-2 | -181500 |
| average opponent: 1502record: 3-3 | new rating: 1500 | |||