Barcelos, Hederson
Current rating: 1503
Record: 11-11-1
| Grand Prix Buenos Aires 2008 (SHM standard) | starting rating: 1482 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 29 | Blanes del Ciampo, Marcelo (1518) | Won 2-0 | +181500 |
| 3standard | 6 | del Fierro, Gonzalo (1500) | Won 2-1 | +181518 |
| 4standard | 47 | Otarola, Juan (1536) | Won 2-1 | +191537 |
| 5standard | 34 | Pozzo, Sebastian (1518) | Lost 0-2 | -191518 |
| 6standard | 72 | Campana, Rubens (1635) | Won 2-1 | +201538 |
| 7standard | 15 | Silva, Gerardo (1537) | Lost 1-2 | -181520 |
| 8standard | 56 | Franco Junior, Cassiano (1538) | Lost 1-2 | -171503 |
| top | average opponent: 1540record: 4-3 | new rating: 1503 | ||
| Grand Prix Porto Alegre 2004 (COK limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 92 | Rosa Ferreira, Andre (1500) | Won 2-0 | +181518 |
| 2sealed | 3 | Portugal, Daniel (1484) | Lost 1-2 | -181500 |
| 3sealed | 107 | Perez, Walter (1499) | Lost 0-2 | -181482 |
| 4sealed | 141 | Di Franco De Griveir, Diogo (1482) | Lost 0-2 | -181464 |
| 5sealed | 143 | Sidnei Freitas Dos Santos Jr, (1463) | Won 2-0 | +181482 |
| top | average opponent: 1486record: 2-3 | new rating: 1482 | ||
| Grand Prix Curitiba 2001 (extended) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 4extended | 5 | dos Santos Passos, Ronei (1518) | Lost 0-2 | -181500 |
| 5extended | 56 | Zampere Junior, Celso (1515) | Lost 1-2 | -181482 |
| 6extended | 86 | Carvalho, Alessandro (1486) | Won 2-0 | +181500 |
| 7extended | 41 | Santos, Leandro P (1519) | Draw 1-1 | 01500 |
| top | average opponent: 1509record: 1-2-1 | new rating: 1500 | ||
| Grand Prix Rio de Janeiro 2001 (PLS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 47 | Vianna Cava, Pedro (1500) | Won 2-1 | +181518 |
| 2sealed | 2 | Possato, Dawton Carlos (1518) | Won 2-0 | +181536 |
| 3sealed | 22 | Madrid, Ignacio (1590) | Won 2-1 | +191555 |
| 4sealed | 27 | Shirozono, Michel (1500) | Lost 1-2 | -191536 |
| 5sealed | 65 | De Mattos Magalnaes, Joao Gi (1536) | Lost 0-2 | -181518 |
| 6sealed | 53 | Soares, Marcus (1501) | Lost 0-2 | -181500 |
| 7sealed | 107 | Hercules, Aurelio (1500) | Won 0-0 | +181518 |
| top | average opponent: 1521record: 4-3 | new rating: 1518 | ||