Perez, Alfredo
Current rating: 1329
Record: 7-18
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1366 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 3 | Martinez Rosas, Juan Carlos (1498) | Lost 1-2 | -151351 |
| 2sealed | 255 | Espinoza, Aldo (1482) | Lost 0-2 | -161335 |
| 3sealed | 338 | Flores, Marco (1463) | Won 2-0 | +201355 |
| 4sealed | 261 | Garcia Velarde, Jesus Manuel (1553) | Lost 1-2 | -141341 |
| 5sealed | 282 | Godinez Gonzalez, Anto (1463) | Won 2-0 | +201361 |
| 6sealed | 231 | Isaias, Pedro (1483) | Lost 0-2 | -161345 |
| 7sealed | 218 | Alba Romero, Emmanuel (1445) | Lost 0-2 | -161329 |
| top | average opponent: 1484record: 2-5 | new rating: 1329 | ||
| Grand Prix Guadalajara 2013 (DGM standard) | starting rating: 1428 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 170 | Martinez Rosas, Juan Carlos (1500) | Lost 0-2 | -171411 |
| 2standard | 200 | Flores, Edgar [MEX] (1527) | Lost 0-2 | -151396 |
| 3standard | 197 | Mendez Aguilar, Rolando (1464) | Won 2-1 | +191415 |
| 4standard | 169 | Velazquez, Raul Clemen (1499) | Lost 0-2 | -171398 |
| 5standard | 197 | Casasa, Miguel (1548) | Lost 1-2 | -151383 |
| 6standard | 191 | Flores F, Rene (1447) | Lost 0-2 | -171366 |
| top | average opponent: 1498record: 1-5 | new rating: 1366 | ||
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 99 | Juarez, Rodolfo (1519) | Lost 1-2 | -181482 |
| 3sealed | 156 | Montero, Francisco (1482) | Lost 1-2 | -181464 |
| 4sealed | 162 | Rojas, Alejandro (1463) | Lost 0-2 | -181446 |
| 5sealed | 157 | Sandi, Norelky (1448) | Lost 0-2 | -181428 |
| top | average opponent: 1478record: 0-4 | new rating: 1428 | ||
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 142 | Hedan, Josselin (1500) | Lost 0-2 | -181482 |
| 2sealed | 283 | Tovar, Adrian (1482) | Won 2-0 | +181500 |
| 3sealed | 186 | Arguelles, Mario A (1482) | Lost 0-2 | -181482 |
| 4sealed | 228 | Boone, Allan (1482) | Won 2-0 | +181500 |
| 5sealed | 156 | Carrillo, Ana (1499) | Won 2-1 | +181518 |
| 6sealed | 97 | Alvarez, Rafael [MEX] (1517) | Lost 1-2 | -181500 |
| 7sealed | 158 | Blumenkran, Fernando (1499) | Won 2-0 | +181518 |
| 8sealed | 117 | Gomez, Manuel (1524) | Lost 0-2 | -181500 |
| top | average opponent: 1498record: 4-4 | new rating: 1500 | ||