de Souza Neto, Oscar N
Current rating: 1515
| Grand Prix Sao Paulo 2015 (DTK standard) | starting rating: 1533 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 340 | Barbosa Marques Junior, Jose Eduardo (1500) | Won 2-1 | +171550 |
| 2standard | 71 | Bittner Silva, Edgar (1518) | Won 2-0 | +181568 |
| 3standard | 224 | Lambert Maniezzo, Marcel Filipe (1520) | Lost 0-2 | -191549 |
| 4standard | 230 | Merces, Felipe (1521) | Lost 1-2 | -191530 |
| 5standard | 302 | Fernandes Ferraz, Diego (1700) | Lost 0-2 | -151515 |
| top | average opponent: 1552record: 2-3 | new rating: 1515 | ||
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1502 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 97 | Fantom, Leonardo (1500) | Won 2-0 | +181520 |
| 2sealed | 52 | Augusto Ab, Marcio Antonio (1532) | Won 2-1 | +181538 |
| 3sealed | 97 | Ruz, Walter (1401) | Lost 1-2 | -211517 |
| 4sealed | 126 | Guitelman, Nicolas (1485) | Won 2-1 | +181535 |
| 5sealed | 142 | Dos Santos, Jose (1522) | Won 2-0 | +171552 |
| 6sealed | 24 | Albino Smania, Fabio (1470) | Lost 0-2 | -191533 |
| top | average opponent: 1485record: 4-2 | new rating: 1533 | ||
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 115 | Rafael Oliveira, (1500) | Won 2-1 | +181518 |
| 2standard | 24 | Cazzarotti de Oliveira, Pedro Henrique (1518) | Won 2-0 | +181536 |
| 3standard | 60 | Luis Simocs, (1536) | Won 2-0 | +181554 |
| 4standard | 51 | dos Santos Esteves, Carlos Alexandre (1500) | Lost 0-2 | -191535 |
| 5standard | 98 | Zampere Junior, Celso (1709) | Lost 0-2 | -151520 |
| 6standard | 146 | Benitez, Francisco (1487) | Lost 0-0 | -181502 |
| top | average opponent: 1542record: 3-3 | new rating: 1502 | ||