Marquez Jacobo, Pedro
Current rating: 1428
Record: 5-9
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 214 | Padilla Vargas, Cristian Alejandro (1546) | Lost 0-2 | -171484 |
| 2sealed | 273 | Berumen Galvan, Jorge Alberto (1481) | Won 2-1 | +171501 |
| 3sealed | 150 | Miguel Cruz, Oscar Daniel (1431) | Lost 1-2 | -191482 |
| 4sealed | 254 | Gallegos Baeza, Daniel (1467) | Lost 0-2 | -181464 |
| 5sealed | 271 | Guerrero Islas, Rebeca (1446) | Lost 0-2 | -181446 |
| 6sealed | 276 | Brambila, Jesus M (1447) | Lost 0-2 | -181428 |
| average opponent: 1469record: 1-5 | new rating: 1428 | |||
| Grand Prix Guadalajara 2013 (DGM standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 63 | Morelos Rubio, Alejand (1500) | Won 2-0 | +181518 |
| 2standard | 57 | Osuna, Eduardo (1503) | Lost 1-2 | -181500 |
| 3standard | 67 | Gallegos, Alejandra (1500) | Won 2-1 | +181518 |
| 4standard | 92 | Cravioto, Andres (1503) | Lost 0-2 | -191499 |
| 5standard | 155 | Sanchez, Emiliano (1565) | Lost 0-2 | -161483 |
| 6standard | 178 | Monroy Diaz, Manuel (1483) | Lost 0-2 | -181465 |
| 7standard | 153 | Salazar Garcia, Norberto (1463) | Won 2-0 | +181483 |
| 8standard | 125 | Velazquez, Claudio (1486) | Won 2-1 | +181501 |
| average opponent: 1500record: 4-4 | new rating: 1501 | |||