Guimaraes, Wellington R
Current rating: 1445
Record: 3-6
| Grand Prix Sao Paulo 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 249 | Ocampo, Rodolfo (1542) | Lost 0-2 | -171483 |
| 2sealed | 274 | Finoti, Lucas (1482) | Lost 0-2 | -181465 |
| 3sealed | 312 | Arauso, Leonardo de S (1464) | Won 2-1 | +181483 |
| 4sealed | 224 | Sologuren, David (1449) | Lost 0-2 | -191464 |
| 5sealed | 271 | Augusto Da Silva, Cesar (1468) | Lost 0-2 | -181446 |
| 6sealed | 263 | Camargo, Rodrigo (1446) | Won 2-0 | +181464 |
| 7sealed | 215 | Giordano, Bruno (1463) | Lost 0-2 | -181446 |
| 8sealed | 178 | Yamaguchi, Thiago Rogerio (1398) | Lost 1-2 | -191427 |
| 9sealed | 73 | Ferraz, Dilson (1429) | Won 2-0 | +181445 |
| average opponent: 1460record: 3-6 | new rating: 1445 | |||