Salas Arroyo, Michael
Current rating: 1462
Record: 2-4-1
| Grand Prix Costa Rica 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Campos, Ruben (1500) | Draw 1-1 | 01500 |
| 3sealed | 126 | Castro Fernandez, John (1500) | Lost 0-2 | -181482 |
| 4sealed | 160 | Perez Stefanov, Igor (1468) | Won 2-0 | +181500 |
| 5sealed | 134 | Cespedes, Diego (1499) | Won 2-0 | +181518 |
| 6sealed | 99 | Martinez, Geovanny (1483) | Lost 1-2 | -191499 |
| 7sealed | 109 | Zuniga, Luis Diego (1468) | Lost 0-2 | -181481 |
| 8sealed | 106 | Ovares Jimenez, Gustav (1447) | Lost 0-2 | -191462 |
| average opponent: 1481record: 2-4-1 | new rating: 1462 | |||