Guilherme Almeida,
Current rating: 1497
Record: 3-3
| Grand Prix Sao Paulo 2009 (ARB standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 65 | Braz, Thiago (1500) | Won 2-0 | +181518 |
| 2standard | 71 | Valenzuela, Pablo (1383) | Lost 1-2 | -201498 |
| 3standard | 166 | Cazzarotti de Oliveira, Pedro Henrique (1500) | Won 2-0 | +181516 |
| 4standard | 99 | Diego K Vieira, (1518) | Won 2-0 | +181534 |
| 5standard | 136 | Mauricio Pamplona Segu, (1519) | Lost 1-2 | -191515 |
| 6standard | 149 | Dannemann, Joao Manoel (1486) | Lost 0-0 | -181497 |
| average opponent: 1484record: 3-3 | new rating: 1497 | |||