Seijo, Osvaldo
Current rating: 1482
Record: 3-4
| Grand Prix Buenos Aires 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 20 | Bosco, Osvaldo (1500) | Won 2-0 | +181518 |
| 2extended | 44 | Flores, Diego (1518) | Lost 0-2 | -181500 |
| 3extended | 94 | Hercules, Aurelio (1500) | Lost 0-2 | -181482 |
| 4extended | 103 | Hernandez, Rodrigo (1482) | Lost 1-2 | -181464 |
| 5extended | 130 | MATTEASSI, FEDERICO (1464) | Lost 0-2 | -181446 |
| 6extended | 136 | Tome, Martin (1444) | Won 2-0 | +181464 |
| 7extended | 118 | BOGOMOLNY, FERNANDO (1464) | Won 2-0 | +181482 |
| average opponent: 1482record: 3-4 | new rating: 1482 | |||