Osuna Navarro, Samir
Current rating: 1473
Record: 3-5
| Grand Prix Mexico City 2018 (GRN limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 62 | Mondragon, Jose (1476) | Won 2-0 | +181518 |
| 2sealed | 33 | Cameras Lievano, Romeo Aaron (1624) | Lost 0-2 | -161502 |
| 3sealed | 161 | Littman, Fai (1943) | Lost 0-2 | -111491 |
| 4sealed | 176 | Avendano, Juan Pablo (1482) | Lost 0-2 | -181473 |
| 5sealed | 161 | Caloch, Omar (1512) | Lost 1-2 | -171456 |
| 6sealed | 168 | Castano Collazos, Eduardo (1433) | Lost 0-2 | -191437 |
| 7sealed | 147 | Delacruz, Rubi (1428) | Won 2-1 | +181455 |
| 8sealed | 127 | Figueroa Chavira, Cesar Alberto (1453) | Won 2-0 | +181473 |
| average opponent: 1544record: 3-5 | new rating: 1473 | |||