Valverde, Manuel
Current rating: 1464
Record: 4-6-1
| Grand Prix Buenos Aires 2008 (SHM standard) | starting rating: 1518 | |||
| round | table | opponent (rating) | result | Δrating |
| 4standard | 14 | Oliveira Graichen, Leonardo (1500) | Lost 1-2 | -181500 |
| 5standard | 53 | Saporito, Thiago (1501) | Lost 0-2 | -181482 |
| 6standard | 101 | Gil, Eddie (1482) | Draw 1-1 | 01482 |
| 7standard | 123 | Paredes, Marcos (1500) | Lost 0-2 | -181464 |
| average opponent: 1496record: 0-3-1 | new rating: 1464 | |||
| Grand Prix Buenos Aires 2000 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 92 | Kostzer, Ignacio (1500) | Lost 0-2 | -181482 |
| 2extended | 114 | Julia, Carlos Mariano (1482) | Won 2-0 | +181500 |
| 3extended | 91 | Tome, Martin (1498) | Won 2-1 | +181518 |
| 4extended | 49 | Lastorta, Diego (1518) | Lost 0-2 | -181500 |
| 5extended | 79 | Rodriguez Pozzo, Matias (1500) | Won 2-0 | +181518 |
| 6extended | 79 | De Luca, Matias (1518) | Lost 0-2 | -181500 |
| 7extended | 87 | Dominguez, Sebastian (1499) | Won 2-1 | +181518 |
| average opponent: 1502record: 4-3 | new rating: 1518 | |||