Pereira, Ivan
Current rating: 1610
Record: 12-6
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 111 | Bender, Eduardo (1500) | Won 2-0 | +181520 |
| 2sealed | 14 | De Moraes, Ricardo (1518) | Won 2-0 | +181538 |
| 3sealed | 26 | Camara, Marcio (1492) | Won 2-0 | +181556 |
| 4sealed | 19 | Jung, Bernardo (1539) | Won 2-0 | +171573 |
| 5sealed | 13 | Birckholz, Nicholas Alexander (1588) | Won 2-1 | +181591 |
| 6sealed | 6 | Hatem, Elias (1541) | ID | 01591 |
| 7sealed | 3 | Edo Junior, Roberto (1573) | Lost 1-2 | -181573 |
| 8rochester | 26 | dos Santos Passos, Ronei (1606) | Lost 0-1 | -171556 |
| 9rochester | 31 | Winnik Filho, Sergio (1558) | Won 2-0 | +181574 |
| 10rochester | 3 | Portugal, Daniel (1542) | Won 2-0 | +171591 |
| 11rochester | 4 | Moreine Thejano, Guilherne (1590) | Won 2-0 | +181609 |
| 12rochester | 27 | De Oliveira, Paulo Henrique (1612) | Won 2-0 | +181627 |
| 13rochester | 4 | Couto Cabral, Rafael (1648) | Lost 0-2 | -171610 |
| average opponent: 1562record: 9-3-1 | new rating: 1610 | |||
| Grand Prix Curitiba 2001 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 27 | Fuzetti, Dirceu Alcantra (1518) | Won 0-0 | +181518 |
| 3extended | 20 | Cereceda, Francisco (1564) | Lost 0-2 | -171501 |
| 4extended | 68 | Marques, Marcus (1501) | Won 2-1 | +181519 |
| 5extended | 49 | Santiago, Luis Felipe (1518) | Won 2-0 | +181537 |
| 6extended | 22 | Huerta, Pablo (1645) | Lost 0-2 | -161521 |
| 7extended | 48 | Capristrani, Ary (1485) | Lost 0-2 | -191502 |
| average opponent: 1538record: 3-3 | new rating: 1502 | |||