Romero, Marcos
Current rating: 1531
Record: 9-7
| Grand Prix Guadalajara 2013 (DGM standard) | starting rating: 1534 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 39 | celis, alfredo (1500) | Won 2-0 | +171551 |
| 2standard | 79 | Guerrero Martin, Abrah (1518) | Lost 1-2 | -181533 |
| 3standard | 72 | Orduno Gavina, Octavio (1535) | Won 2-0 | +181551 |
| 4standard | 114 | Vazquez, Luis (1518) | Lost 1-2 | -191532 |
| 5standard | 147 | Jonguitud Garcia, Luis (1500) | Won 2-0 | +181550 |
| 6standard | 123 | Osuna, Eduardo (1503) | Won 2-0 | +171567 |
| 7standard | 79 | Dominguez Roldan, Alfredo (1635) | Lost 1-2 | -171550 |
| 8standard | 113 | Monroy Diaz, Manuel (1518) | Lost 0-2 | -191531 |
| average opponent: 1528record: 4-4 | new rating: 1531 | |||
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 182 | Cabello, Jesus (1500) | Won 2-0 | +181518 |
| 2sealed | 109 | Vazquez, Juan (1466) | Lost 0-2 | -191499 |
| 3sealed | 103 | Avalos, Humberto A (1502) | Won 2-1 | +181517 |
| 4sealed | 173 | Romero Salgado, Germanico M (1518) | Won 2-1 | +181535 |
| 5sealed | 114 | Poo, Sergio (1518) | Won 2-0 | +181553 |
| 6sealed | 31 | Sanchez Strassburger, Juan Carlos (1539) | Won 2-0 | +181571 |
| 7sealed | 25 | Gonzalez, Aldo (1566) | Lost 0-2 | -191552 |
| 8sealed | 67 | Espinosa, Gabriel (1521) | Lost 0-2 | -181534 |
| average opponent: 1516record: 5-3 | new rating: 1534 | |||