Mayorga, Israel
Current rating: 1545
Record: 7-5
| Grand Prix Mexico City 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 71 | Espinosa, Luis (1500) | Lost 1-2 | -181482 |
| 2block | 104 | Tavira, Manelich (1482) | Won 2-0 | +181500 |
| 3block | 70 | ortigosa, carlos (1500) | Won 2-0 | +181518 |
| 4block | 81 | Villa Martinez, Juan Roberto (1518) | Won 2-0 | +181536 |
| 5block | 5 | Gordillo Carcano, Manuel (1483) | Won 2-1 | +171553 |
| 6block | 21 | Rosaldo Serrano, Marcos (1553) | Won 2-0 | +181571 |
| 7block | 19 | Reyes Padilla, Orlando (1570) | ID | 01571 |
| 8block | 11 | Godinez Estrada, Gerardo (1652) | Lost 0-2 | -161555 |
| 9block | 25 | Gallegos, Moises (1536) | Lost 0-2 | -191536 |
| 10block | 28 | Vasquez, Andres (1529) | Won 2-1 | +181554 |
| 11block | 23 | Narvaez Hurtado, Jose (1509) | Won 2-1 | +171571 |
| 12block | 17 | Levin, Eugene (1772) | Lost 0-2 | -141557 |
| 13block | 23 | Maaten, Rogier (1916) | Lost 0-2 | -121545 |
| average opponent: 1578record: 7-5-1 | new rating: 1545 | |||