De La Torre Ortiz, Roberto
Current rating: 1450
Record: 2-6
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1455 | |||
| round | table | opponent (rating) | result | Δrating |
| 4sealed | 20 | Godinez Estrada, Gerardo (1908) | Won 2-0 | +251480 |
| 5sealed | 31 | Flores, Mario (1653) | Lost 0-2 | -141466 |
| 6sealed | 30 | Canto, Oswaldo (1501) | Won 2-1 | +181484 |
| 7sealed | 33 | Zorzi Pinarello, Marcelo (1574) | Lost 1-2 | -161468 |
| 8sealed | 54 | Searles, James (1501) | Lost 0-2 | -181450 |
| average opponent: 1628record: 2-3 | new rating: 1450 | |||
| Grand Prix Mexico City 2005 (Kamigawa block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 4block | 3 | Gomersall, Sam (1905) | Lost 1-2 | -111489 |
| 5block | 34 | Padilla Chinas, Jorge (1538) | Lost 0-2 | -171472 |
| 6block | 79 | Salgado, Mauricio (1518) | Lost 0-2 | -171455 |
| average opponent: 1654record: 0-3 | new rating: 1455 | |||