Romero Rodriguez, Sergio
Current rating: 1507
Record: 9-9
| Grand Prix Mexico City 2016 (OGW limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Thompson, Skylin (1563) | Lost 0-2 | -171503 |
| 2sealed | 277 | Contreras Gonzalez, Miguel Angel De Jesus (1482) | Lost 1-2 | -191484 |
| 3sealed | 360 | Garcia Sanchez, Luis David (1481) | Lost 1-2 | -181466 |
| 4sealed | 365 | Deleze Suarez, Diego (1449) | Lost 0-2 | -181448 |
| 5sealed | 361 | Pina, Noe Lozada (1427) | Won 2-0 | +181466 |
| 6sealed | 334 | Rangel, Diego (1449) | Won 2-0 | +171483 |
| 7sealed | 284 | Melin, Anders (1866) | Lost 0-2 | -111472 |
| 8sealed | 274 | Naomi, Samuel (1447) | Won 2-0 | +171489 |
| 9sealed | 227 | Ortiz, Christian (1472) | Won 2-0 | +181507 |
| average opponent: 1515record: 4-5 | new rating: 1507 | |||
| Grand Prix Mexico City 2015 (FRF limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 67 | Briceno Zurita, Angel Alberto (1500) | Lost 1-2 | -181482 |
| 2sealed | 162 | Vazquez Armeaga, Juan Francisco (1482) | Won 2-1 | +181500 |
| 3sealed | 198 | Caballero, Homero (1465) | Lost 1-2 | -191481 |
| 4sealed | 275 | Gallardo b, Ivan (1485) | Won 2-0 | +181499 |
| 5sealed | 220 | Caloch, Omar (1574) | Won 2-1 | +201519 |
| 6sealed | 135 | Sarracino Mayorga, Samuel (1508) | Won 2-0 | +181537 |
| 7sealed | 19 | Munoz Lazos, Samuel (1576) | Lost 0-2 | -181519 |
| 8sealed | 137 | Chillon, Cesar (1556) | Lost 1-2 | -171502 |
| 9sealed | 114 | Banuelos, Juan (1496) | Won 2-0 | +181520 |
| average opponent: 1516record: 5-4 | new rating: 1520 | |||