De Mattos Magalnaes, Joao Gi
Current rating: 1517
Record: 3-2-2
| Grand Prix Rio de Janeiro 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 114 | Da Silva, Marco Aurelio (1500) | Won 2-0 | +181518 |
| 2sealed | 5 | Silva Telies, Joao Carlos (1518) | Won 2-1 | +181536 |
| 3sealed | 37 | Guimaraes, Douglas Ricardo (1537) | Draw 1-1 | 01536 |
| 4sealed | 46 | Farias, Regis Fernandes (1518) | Draw 1-1 | 01536 |
| 5sealed | 65 | Barcelos, Hederson (1536) | Won 2-0 | +181554 |
| 6sealed | 41 | Salgado, Ricardo (1603) | Lost 0-2 | -171537 |
| 7sealed | 67 | Rossillo, Lucas Dario (1471) | Lost 0-0 | -201517 |
| average opponent: 1526record: 3-2-2 | new rating: 1517 | |||