Rosaldo Serrano, Marcos
Current rating: 1517
Record: 4-3
| Grand Prix Mexico City 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 105 | Martinez, Rodrigo (1481) | Won 2-1 | +181518 |
| 2block | 18 | Carrera, Oscar (1500) | Lost 0-2 | -191499 |
| 3block | 74 | Barros Sanchez, Alejandro (1500) | Won 2-1 | +181517 |
| 4block | 54 | De Valdemar Romero, Erwin Alejandro (1518) | Won 1-0 | +181535 |
| 5block | 50 | Urbina, Roberto (1536) | Won 2-1 | +181553 |
| 6block | 21 | Mayorga, Israel (1553) | Lost 0-2 | -181535 |
| 7block | 57 | Gonzalez, Oscar (1534) | Lost 1-2 | -181517 |
| average opponent: 1517record: 4-3 | new rating: 1517 | |||