Pereira Dutra, Igor
Current rating: 1503
Record: 7-7
| Grand Prix Sao Paulo 2019 (modern) | starting rating: 1517 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 34 | Carneiro Calmon Neto, Jayme (1536) | Won 2-0 | +191536 |
| 4modern | 43 | Dezerto Ribeiro Borges, Davi (1541) | Won 2-0 | +181554 |
| 5modern | 57 | Santini, Wendell (1743) | Lost 1-2 | -151539 |
| 6modern | 39 | Villouta, Javier (1517) | Lost 1-2 | -181521 |
| 7modern | 256 | Belote, Andre (1533) | Lost 1-2 | -181503 |
| average opponent: 1574record: 2-3 | new rating: 1503 | |||
| Grand Prix Porto Alegre 2017 (AER standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 133 | Carolina Santos, Ana (1500) | Won 2-0 | +181518 |
| 2standard | 94 | Vannucci, Andre (1518) | Won 2-1 | +181536 |
| 3standard | 53 | Alves, Pedro (1487) | Lost 0-2 | -191517 |
| 4standard | 106 | das Dores, Abner (1502) | Lost 1-2 | -181499 |
| 5standard | 157 | Bastos, Celso (1474) | Lost 1-2 | -191480 |
| 6standard | 228 | Mattos, Paulo (1484) | Won 2-1 | +181498 |
| 7standard | 171 | Cardozo, Jorge (1548) | Lost 1-2 | -171481 |
| 8standard | 175 | Borges, Daniel (1478) | Won 2-0 | +181499 |
| 9standard | 151 | Alexandre Matos, Ricardo (1501) | Won 2-0 | +181517 |
| average opponent: 1499record: 5-4 | new rating: 1517 | |||