Perez Aldana, Alfredo
Current rating: 1440
Record: 15-18
| Grand Prix Mexico City 2016 (OGW limited) | starting rating: 1471 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 179 | Bolanos Lopez, Omar Angel (1500) | Lost 0-2 | -181453 |
| 2sealed | 302 | Ferrer Guzman, Luis Arturo (1482) | Won 2-0 | +191472 |
| 3sealed | 176 | Lopez Basulto, Erick Manuel (1624) | Lost 1-2 | -151457 |
| 4sealed | 317 | Robles Gonzalez, Paolo (1515) | Won 2-1 | +191476 |
| 5sealed | 236 | Quintana Arsuaga, Jose (1395) | Won 2-1 | +161492 |
| 6sealed | 176 | Gutierrez Castaneda, Oscar (1536) | Lost 0-2 | -171475 |
| 7sealed | 252 | Oro Yu, Ivan (1524) | Lost 0-2 | -171458 |
| 8sealed | 226 | Salazar Gonzalez, Javier (1466) | Lost 0-2 | -181440 |
| top | average opponent: 1505record: 3-5 | new rating: 1440 | ||
| Grand Prix Mexico City 2015 (FRF limited) | starting rating: 1509 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 177 | Hidrogo, Moises (1483) | Lost 1-2 | -181491 |
| 2sealed | 206 | Sanchez Basurto, Rodrigo (1482) | Lost 1-2 | -191472 |
| 3sealed | 263 | Zaragoza Dreyes, Juan Pablo (1458) | Won 2-1 | +181490 |
| 4sealed | 225 | De Alba Aguayo, Daniel (1413) | Lost 0-2 | -191471 |
| top | average opponent: 1459record: 1-3 | new rating: 1471 | ||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1552 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 117 | ortigosa, carlos (1464) | Lost 1-2 | -201532 |
| 2sealed | 207 | Rivera Z., Rigoberto E (1401) | Won 2-1 | +161548 |
| 3sealed | 149 | Ordaz Farias, Jorge Alberto (1638) | Won 2-1 | +191567 |
| 4sealed | 27 | De alba, Daniel Armand (1482) | Lost 0-2 | -191548 |
| 5sealed | 139 | Barboza, Francisco (1483) | Lost 1-2 | -191529 |
| 6sealed | 196 | Riva Palacio, Gabriel (1447) | Lost 0-2 | -201509 |
| top | average opponent: 1486record: 2-4 | new rating: 1509 | ||
| Grand Prix Guadalajara 2013 (DGM standard) | starting rating: 1519 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 10 | Mancilla Hernandez, Carlos (1571) | Won 2-0 | +191538 |
| 2standard | 21 | Orvelas Reynoso, Cesar (1518) | Won 2-0 | +181556 |
| 3standard | 48 | Cameras Lievano, Romeo Aaron (1536) | Won 2-1 | +171573 |
| 4standard | 30 | Hernandez Martinez, Daniel (1536) | Lost 0-2 | -181555 |
| 5standard | 43 | Monge H, Mario (1482) | Lost 1-2 | -201535 |
| 6standard | 73 | Ake Xacur, Aaron (1467) | Won 2-0 | +171552 |
| 7standard | 87 | Rivas Garcia, Isaias (1536) | Won 2-1 | +181570 |
| 8standard | 39 | Acevedo, Diego (1560) | Lost 0-2 | -181552 |
| top | average opponent: 1526record: 5-3 | new rating: 1552 | ||
| Grand Prix Mexico City 2012 (DKA limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 153 | Gonzalez, Francisco (1517) | Won 2-0 | +181518 |
| 3sealed | 55 | Vazquez, Juan (1485) | Won 2-0 | +181536 |
| 4sealed | 21 | Montessoro, Jorge (1518) | Lost 1-2 | -191517 |
| 5sealed | 93 | Orduno Gavina, Octavio (1537) | Lost 0-2 | -171500 |
| 6sealed | 98 | Munoz Gomez, Eduardo (1520) | Won 2-1 | +181518 |
| 7sealed | 96 | Mattinson, Ryan (1537) | Won 2-1 | +181536 |
| 8sealed | 59 | garcilazo, edgar (1569) | Lost 0-2 | -171519 |
| top | average opponent: 1526record: 4-3 | new rating: 1519 | ||