De Sousa Matiazo, Erick
Current rating: 1524
Record: 5-4
| Grand Prix Porto Alegre 2015 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 40 | Oliveira, Stefano (1500) | Won 2-0 | +181518 |
| 2modern | 13 | Carneiro, Jean Carlos (1585) | Won 2-0 | +191537 |
| 3modern | 62 | Vieira Ramalho, Bruno (1482) | Lost 1-2 | -191518 |
| 4modern | 126 | Floresta dos Santos, Leandro (1572) | Won 2-0 | +191537 |
| 5modern | 62 | Ioppolo, Pablo (1666) | Won 2-1 | +211558 |
| 6modern | 77 | Saraiva, Eduardo (1544) | Won 2-0 | +171575 |
| 7modern | 19 | Muller, Bruno (1595) | Lost 0-2 | -171558 |
| 8modern | 81 | Veliz, Juan (1689) | Lost 1-2 | -161542 |
| 9modern | 103 | Levandovski, Eduardo (1541) | Lost 1-2 | -181524 |
| average opponent: 1575record: 5-4 | new rating: 1524 | |||