da Costa, Ivo Rafael
Current rating: 1604
Record: 9-4-1
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 206 | Campos, Elison (1500) | Won 2-0 | +181518 |
| 2modern | 17 | Scarpe Simao, Renan (1517) | Won 2-0 | +181536 |
| 3modern | 103 | Barros, Victor (1655) | Won 2-1 | +201556 |
| 4modern | 61 | Souza, Jorge (1504) | Won 2-1 | +171573 |
| 5modern | 4 | Galvao Pires, Daniel Felipe (1539) | Won 2-1 | +181591 |
| 6modern | 12 | Crusius, Diego (1652) | Won 2-1 | +191610 |
| 7modern | 6 | Zamorano, Pablo (1730) | Won 2-0 | +201630 |
| 8modern | 2 | Saporito, Thiago (2096) | Won 2-0 | +261656 |
| 9modern | 1 | Rodrigues Cavalcante, Marcelo (1674) | Lost 1-2 | -181638 |
| 10modern | 28 | Fehr, Gabriel (1758) | Draw 0-0 | +21640 |
| 11modern | 6 | da Silveira, Matheus Daniel (1578) | Lost 1-2 | -191621 |
| 12modern | 14 | Rosas, Matias I (1628) | Lost 1-2 | -181603 |
| 13modern | 24 | Silva Neto, Luiz (1628) | Won 0-0 | +191622 |
| 14modern | 15 | Portugal, Marco (1629) | Lost 0-2 | -181604 |
| 15modern | 23 | Cortez, Paulo Ricardo (1918) | ID | 01604 |
| average opponent: 1667record: 9-4-2 | new rating: 1604 | |||