Pena, Nelson
Current rating: 1554
Record: 5-2
| Grand Prix Buenos Aires 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 30 | ARGENTO, FERNANDO (1500) | Lost 0-2 | -181482 |
| 2extended | 120 | Monti, Dario (1482) | Won 2-0 | +181500 |
| 3extended | 62 | Dos Santos, Rafael (1500) | Won 2-0 | +181518 |
| 4extended | 71 | Suarez, Federico (1518) | Lost 0-2 | -181500 |
| 5extended | 73 | VILLAR, RAMIRO (1500) | Won 2-0 | +181518 |
| 6extended | 63 | Rotemberg, Miguel (1516) | Won 2-1 | +181536 |
| 7extended | 35 | De Leon, Estanislao (1536) | Won 2-1 | +181554 |
| average opponent: 1507record: 5-2 | new rating: 1554 | |||