Loveday Zaconetta, Harodt Isaac
Current rating: 1503
Record: 4-4
| Grand Prix Mexico City 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 16 | Figueroa Chavira, Cesar Alberto (1500) | Won 2-0 | +181518 |
| 2sealed | 7 | Ogayar, David Jesus (1561) | Lost 0-2 | -171501 |
| 3sealed | 127 | Oropeza Venegas, Miguel (1467) | Won 2-0 | +171518 |
| 4sealed | 124 | Ponce Franco, Jose Manuel (1579) | Lost 0-2 | -171501 |
| 5sealed | 156 | Morphis, James (1599) | Lost 0-2 | -161485 |
| 6sealed | 148 | Carrillo, Ana (1463) | Won 2-0 | +181503 |
| 7sealed | 109 | Cruz Mucino, Rafael (1454) | Won 2-1 | +171520 |
| 8sealed | 71 | Astorga Gomez, William Ricardo (1606) | Lost 0-2 | -171503 |
| average opponent: 1528record: 4-4 | new rating: 1503 | |||