Perez Osorio, Manuel Alberto
Current rating: 1458
Record: 5-8
| Grand Prix Mexico City 2018 (GRN limited) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 61 | Ortiz, Oscar (1413) | Won 2-1 | +171464 |
| 2sealed | 15 | Martinez Sotelo, Luis David (1474) | Lost 0-2 | -171447 |
| 3sealed | 111 | Padierna, Jorge (1834) | Lost 0-2 | -121435 |
| 4sealed | 182 | Huerta Mondragon, Santiago (1494) | Won 2-0 | +191454 |
| 5sealed | 112 | Gomez Pasos, Gabriel (1534) | Lost 1-2 | -161438 |
| 6sealed | 157 | Hernandez Olivares, Christopher Gilbert (1481) | Won 2-0 | +191457 |
| 7sealed | 100 | Flores, Raul (1498) | Won 2-0 | +181475 |
| 8sealed | 77 | Romero, Bryan (1527) | Lost 0-2 | -171458 |
| average opponent: 1532record: 4-4 | new rating: 1458 | |||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 83 | Segoviano, Rodolfo S (1497) | Won 2-1 | +181518 |
| 2sealed | 91 | Lorea, Zaid (1505) | Lost 0-2 | -181500 |
| 3sealed | 235 | Aguilar Camacho, Aaron (1535) | Lost 1-2 | -181482 |
| 4sealed | 299 | Canto, Oswaldo (1524) | Lost 1-2 | -171465 |
| 5sealed | 293 | Vazquez, Aldo (1464) | Lost 0-2 | -181447 |
| average opponent: 1505record: 1-4 | new rating: 1447 | |||