Achach, Roberto
Current rating: 1456
Record: 2-5
| Grand Prix Mexico City 2015 (FRF limited) | starting rating: 1473 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 76 | Gutierrez Saldate, Gabriel (1544) | Lost 0-2 | -171456 |
| record: 0-1 | new rating: 1456 | |||
| Grand Prix Mexico City 2014 (BNG limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 77 | Leon Carmona, Jorge (1534) | Won 2-1 | +191519 |
| 4sealed | 58 | Martinez, Axel (1797) | Lost 0-2 | -131506 |
| 5sealed | 84 | Jasso Ortiz, Gamaliel (1532) | Won 2-0 | +181524 |
| 6sealed | 23 | Priego C, Luis Enrique (1594) | Lost 1-2 | -171507 |
| 7sealed | 70 | Viramontes Martinez, Jesus Arturo (1540) | Lost 1-2 | -171490 |
| 8sealed | 98 | Salazar Gonzales, Jorge Alberto (1542) | Lost 1-2 | -171473 |
| average opponent: 1590record: 2-4 | new rating: 1473 | |||