Da Silva, Valdecir Vieira
Current rating: 1462
Record: 5-7
| Grand Prix Curitiba 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 16 | Sternadt, Augusto Klein (1500) | Won 2-1 | +181518 |
| 2extended | 62 | Machado, Allan Schlichting (1518) | Won 0-0 | +181536 |
| 3extended | 1 | Santos, Bruno B (1518) | Lost 1-2 | -181518 |
| 4extended | 97 | Beppu, Daniel H (1482) | Won 2-0 | +171535 |
| 5extended | 70 | Dupret, Pedro (1536) | Won 2-0 | +181553 |
| 6extended | 26 | Galimberti P. Abreu, Rurik (1534) | Won 2-0 | +181571 |
| 7extended | 22 | Tanaka, Marcos Teruo (1518) | ID | 01571 |
| 8extended | 21 | Lapuch, Alexandre (1539) | Lost 0-2 | -191552 |
| 9extended | 24 | Almeida, Erico (1551) | Lost 0-2 | -181534 |
| 10extended | 30 | Alberge Ribas, Marcel (1565) | Lost 0-2 | -171517 |
| 11extended | 31 | Ferrari, Daniel (1533) | Lost 0-2 | -181499 |
| 12extended | 31 | Nascimento, Andre (1461) | Lost 0-2 | -191480 |
| 13extended | 30 | Andrade, Marcelo T (1452) | Lost 0-2 | -181462 |
| average opponent: 1516record: 5-7-1 | new rating: 1462 | |||