Marcelo Marcelo,
Current rating: 1506
Record: 4-4
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 1 | Martins, Felipe (1519) | Lost 0-2 | -181482 |
| 3standard | 124 | Nunes da Silva, Rafael (1429) | Won 2-0 | +171499 |
| 4standard | 136 | Silva, Paulo (1551) | Won 2-0 | +191518 |
| 5standard | 96 | Ferrari Spampinato, Gonzalo (1662) | Lost 0-2 | -151503 |
| 6standard | 178 | Eduardo Vale, (1516) | Won 0-0 | +181521 |
| 7standard | 125 | Pattaro, Eloi Ugo (1655) | Lost 0-2 | -151506 |
| 8standard | 129 | ANTONIO CARLOS Lourenco, (1517) | Won 2-1 | +181524 |
| 9standard | 87 | Carlos De Andrade, Joao (1534) | Lost 0-2 | -181506 |
| average opponent: 1548record: 4-4 | new rating: 1506 | |||