Villa Martinez, Juan Roberto
Current rating: 1518
Record: 4-3
| Grand Prix Mexico City 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 78 | Molina Cruz, Juan Carlos (1500) | Won 2-0 | +181518 |
| 2block | 59 | Escobar, Yunuen (1500) | Won 2-1 | +181536 |
| 3block | 30 | Rivera Rojas, Fernando (1536) | Lost 1-2 | -181518 |
| 4block | 81 | Mayorga, Israel (1518) | Lost 0-2 | -181500 |
| 5block | 97 | Rosales, Georgel (1500) | Won 2-1 | +181518 |
| 6block | 74 | Bravo, Jose Antonio (1518) | Lost 1-2 | -181500 |
| 7block | 75 | Flores, Marino Alberto (1502) | Won 2-0 | +181518 |
| average opponent: 1510record: 4-3 | new rating: 1518 | |||